Primary Offering Prospectus - Form 424B2

The initial estimated value of the Securities as of the Pricing Date is expected to be between $916.75 and $966.75 per Security, which is less than the public offering price listed below. The actual value of your Securities at any time will reflect many factors and cannot be predicted with accuracy. See "Selected Risk Considerations" beginning on page PS-9 of this pricing supplement and "Structuring the Securities" on page PS-27 of this pricing supplement for additional information.
The Securities have complex features and investing in the Securities involves risks not associated with an investment in conventional debt securities. Potential purchasers of the Securities should consider the information in "Selected Risk Considerations" beginning on page PS-9 herein and "Risk Factors" beginning on page PS-5 of the accompanying product supplement, page S-6 of the accompanying prospectus supplement, and page 7 of the accompanying prospectus.
None of the Securities and Exchange Commission (the "SEC"), any state securities commission, or any other regulatory body has approved or disapproved of these Securities or determined if this pricing supplement and the accompanying product supplement, prospectus supplement and prospectus is truthful or complete. Any representation to the contrary is a criminal offense.

PS-2

Market Linked Securities-Callable with Contingent Coupon and Contingent Downside

Principal at Risk Securities Linked to the Lowest Performing of the S&P 500^® Index, the Russell 2000^® Index and the Dow Jones Industrial Average^® due December 29, 2028

PS-3

Market Linked Securities-Callable with Contingent Coupon and Contingent Downside

Principal at Risk Securities Linked to the Lowest Performing of the S&P 500^® Index, the Russell 2000^® Index and the Dow Jones Industrial Average^® due December 29, 2028

* Subject to change

PS-4

Market Linked Securities-Callable with Contingent Coupon and Contingent Downside

Principal at Risk Securities Linked to the Lowest Performing of the S&P 500^® Index, the Russell 2000^® Index and the Dow Jones Industrial Average^® due December 29, 2028

The terms and risks of the Securities are contained in this pricing supplement and in the following related product supplement, prospectus supplement and prospectus. Information included in this pricing supplement supersedes information in the product supplement, prospectus supplement and prospectus to the extent that it is different from that information. These documents can be accessed at the following links:

These documents have been filed as part of a registration statement with the SEC, which may, without cost, be accessed on the SEC website at www.sec.gov or obtained from BofAS by calling 1-800-294-1322. Before you invest, you should read this pricing supplement and the accompanying product supplement, prospectus supplement and prospectus for information about us, BAC and this offering. Any prior or contemporaneous oral statements and any other written materials you may have received are superseded by this pricing supplement and the accompanying product supplement, prospectus supplement and prospectus. Certain terms used but not defined in this pricing supplement have the meanings set forth in the accompanying product supplement or prospectus supplement. Unless otherwise indicated or unless the context requires otherwise, all references in this document to "we," "us," "our," or similar references are to BofA Finance, and not to BAC.

The Securities are our senior debt securities. Any payments on the Securities are fully and unconditionally guaranteed by BAC. The Securities and the related guarantee are not insured by the Federal Deposit Insurance Corporation or secured by collateral. The Securities will rank equally in right of payment with all of our other unsecured and unsubordinated obligations, except obligations that are subject to any priorities or preferences by law. The related guarantee will rank equally in right of payment with all of BAC's other unsecured and unsubordinated obligations, except obligations that are subject to any priorities or preferences by law, and senior to its subordinated obligations. Any payments due on the Securities, including any repayment of the principal amount, will be subject to the credit risk of BofA Finance, as issuer, and BAC, as guarantor.

PS-5

Market Linked Securities-Callable with Contingent Coupon and Contingent Downside

Principal at Risk Securities Linked to the Lowest Performing of the S&P 500^® Index, the Russell 2000^® Index and the Dow Jones Industrial Average^® due December 29, 2028

The Securities are not appropriate for all investors. The Securities may be an appropriate investment for investors who:

■ seek an investment with Contingent Coupon Payments at a rate of at least 8.40% per annum (to be determined on the Pricing Date) until the earlier of the Maturity Date or optional redemption, if, and only if, the closing level of the Lowest Performing Underlying on the applicable Calculation Day is greater than or equal to 75% of its Starting Value;

■ understand that if the Ending Value of the Lowest Performing Underlying on the Final Calculation Day has declined by more than 25% from its Starting Value, they will be fully exposed to the decline in the Lowest Performing Underlying from its Starting Value and will lose more than 25%, and possibly all, of the principal amount of their Securities at maturity;

■ are willing to accept the risk that they may receive few or no Contingent Coupon Payments over the term of the Securities;

■ understand that we may redeem the Securities prior to the Maturity Date at our option beginning approximately six months after issuance, that the term of the Securities may be as short as approximately six months, and that it is more likely that we will redeem the Securities when it would otherwise be advantageous for you to continue to hold the Securities;

■ understand that the return on the Securities will depend solely on the performance of the Underlying that is the Lowest Performing Underlying on each Calculation Day (including the Final Calculation Day) and that they will not benefit in any way from the performance of the better performing Underlyings;

■ understand that the Securities are riskier than alternative investments linked to only one of the Underlyings or linked to a basket composed of each Underlying;

■ understand and are willing to accept the full downside risks of each Underlying;

■ are willing to forgo participation in any appreciation of any Underlying and dividends on securities included in the Underlyings; and

■ are willing to hold the Securities until maturity.

The Securities may not be an appropriate investment for investors who:

■ seek a liquid investment or are unable or unwilling to hold the Securities to maturity;

■ require full payment of the principal amount of the Securities at maturity;

■ seek a security with a fixed term;

■ are unwilling to purchase Securities with an estimated value as of the Pricing Date that is lower than the public offering price and that may be as low as the lower estimated value set forth on the cover page;

■ are unwilling to accept the risk that the closing level of the Lowest Performing Underlying on the Final Calculation Day may decline by more than 25% from its Starting Value;

■ seek certainty of current income over the term of the Securities;

■ seek exposure to the upside performance of any or each Underlying;

■ seek exposure to a basket composed of each Underlying or a similar investment in which the overall return is based on a blend of the performances of the Underlyings, rather than solely on the Lowest Performing Underlying;

■ are unwilling to accept the risk of exposure to the Underlyings;

■ are unwilling to accept the credit risk of BofA Finance, as issuer, and BAC, as guarantor, to obtain exposure to the Underlyings generally, or to obtain exposure to the Underlyings that the Securities provide specifically; or

■ prefer the lower risk of conventional fixed income investments with comparable maturities issued by companies with comparable credit ratings.

The considerations identified above are not exhaustive. Whether or not the Securities are an appropriate investment for you will depend on your individual circumstances, and you should reach an investment decision only after you and your investment, legal, tax, accounting and other advisors have carefully considered the appropriateness of an investment in the Securities in light of your particular circumstances. You should also review carefully "Selected Risk Considerations" herein and "Risk Factors" in each of the accompanying product supplement, prospectus supplement and prospectus for risks related to an investment in the Securities. For more information about the Underlyings, please see the sections titled "The S&P 500^® Index," "The Russell 2000^® Index" and "The Dow Jones Industrial Average^®" below.

PS-6

Market Linked Securities-Callable with Contingent Coupon and Contingent Downside

Principal at Risk Securities Linked to the Lowest Performing of the S&P 500^® Index, the Russell 2000^® Index and the Dow Jones Industrial Average^® due December 29, 2028

Unless we have previously redeemed the Securities at our option, on each Contingent Coupon Payment Date, either you will receive a Contingent Coupon Payment or you will not receive a Contingent Coupon Payment, depending on the closing level of the Lowest Performing Underlying on the related Calculation Day.

Step 1: Determine which Underlying is the Lowest Performing Underlying on the relevant Calculation Day. The Lowest Performing Underlying on any Calculation Day is the Underlying with the lowest Performance Factor on that Calculation Day. The Performance Factor of an Underlying on a Calculation Day is its closing level on that Calculation Day as a percentage of its Starting Value (i.e., its closing level on that Calculation Day divided by its Starting Value).

Step 2: Determine whether a Contingent Coupon Payment is paid on the applicable Contingent Coupon Payment Date based on the closing level of the Lowest Performing Underlying on the relevant Calculation Day, as follows:

If we have not previously redeemed the Securities prior to the Maturity Date at our option, then at maturity you will receive (in addition to the final Contingent Coupon Payment, if otherwise payable) a cash payment per Security (the Maturity Payment Amount) calculated as follows:

Step 1: Determine which Underlying is the Lowest Performing Underlying on the Final Calculation Day. The Lowest Performing Underlying on the Final Calculation Day is the Underlying with the lowest Performance Factor on the Final Calculation Day. The Performance Factor of an Underlying on the Final Calculation Day is its Ending Value as a percentage of its Starting Value (i.e., its Ending Value divided by its Starting Value).

Step 2: Calculate the Maturity Payment Amount based on the Ending Value of the Lowest Performing Underlying, as follows:

PS-7

Market Linked Securities-Callable with Contingent Coupon and Contingent Downside

Principal at Risk Securities Linked to the Lowest Performing of the S&P 500^® Index, the Russell 2000^® Index and the Dow Jones Industrial Average^® due December 29, 2028

The following profile illustrates the potential Maturity Payment Amount on the Securities (excluding the final Contingent Coupon Payment, if any) for a range of hypothetical performances of the Lowest Performing Underlying on the Final Calculation Day from its Starting Value to its Ending Value, assuming the Securities have not been redeemed prior to the Maturity Date. As this profile illustrates, in no event will you have a positive rate of return based solely on the Maturity Payment Amount received at maturity; any positive return will be based solely on the Contingent Coupon Payments, if any, received during the term of the Securities. This graph has been prepared for purposes of illustration only. Your actual return will depend on the actual Ending Value of the Lowest Performing Underlying on the Final Calculation Day and whether you hold your Securities to the Maturity Date. The performance of the better performing Underlyings is not relevant to your return on the Securities.

PS-8

Market Linked Securities-Callable with Contingent Coupon and Contingent Downside

Principal at Risk Securities Linked to the Lowest Performing of the S&P 500^® Index, the Russell 2000^® Index and the Dow Jones Industrial Average^® due December 29, 2028

The Securities have complex features and investing in the Securities will involve risks not associated with an investment in conventional debt securities. Your decision to purchase the Securities should be made only after carefully considering the risks of an investment in the Securities, including those discussed below, with your advisors in light of your particular circumstances. The Securities are not an appropriate investment for you if you are not knowledgeable about significant elements of the Securities or financial matters in general. You should carefully review the more detailed explanation of risks relating to the Securities in the "Risk Factors" sections beginning on page PS-5 of the accompanying product supplement, page S-6 of the accompanying prospectus supplement and page 7 of the accompanying prospectus.

Structure-related Risks

Your investment may result in a loss; there is no guaranteed return of principal. There is no fixed principal repayment amount on the Securities at maturity. If we do not redeem the Securities prior to maturity and the Ending Value of any Underlying is less than its Threshold Value, at maturity you will lose 1% of the principal amount for each 1% that the Ending Value of the Lowest Performing Underlying is less than its Starting Value. In that case, you will lose a significant portion or all of your investment in the Securities.

Your return on the Securities is limited to the return represented by the Contingent Coupon Payments, if any, over the term of the Securities. Your return on the Securities is limited to the Contingent Coupon Payments paid over the term of the Securities, regardless of the extent to which the closing level of any Underlying on any Calculation Day or the Ending Value of any Underlying exceeds its Coupon Barrier or Starting Value, as applicable. Similarly, the amount payable at maturity or upon early redemption will never exceed the sum of the principal amount and the applicable Contingent Coupon Payment, regardless of the extent to which the closing level of any Underlying on any Calculation Day exceeds its Starting Value. In contrast, a direct investment in the securities included in one or more of the Underlyings would allow you to receive the benefit of any appreciation in their values. Thus, any return on the Securities will not reflect the return you would realize if you actually owned those securities and received the dividends paid or distributions made on them.

The Securities are subject to a potential early redemption, which would limit your ability to receive the Contingent Coupon Payments over the full term of the Securities. On each Optional Redemption Date we may, at our option, redeem your Securities in whole, but not in part. If the Securities are redeemed prior to the Maturity Date, you will be entitled to receive the Stated Principal Amount plus any Contingent Coupon Payment otherwise due, and no further amounts will be payable on the Securities. In this case, you will lose the opportunity to continue to receive Contingent Coupon Payments after the date of the early redemption. If the Securities are redeemed prior to the Maturity Date, you may be unable to invest in other securities with a similar level of risk that could provide a return that is similar to the Securities. Even if we do not exercise our option to redeem your Securities, our ability to do so may adversely affect the market value of your Securities. It is our sole option whether to redeem your Securities prior to maturity on any Optional Redemption Date and we may or may not exercise this option for any reason. Because of this, the term of your Securities could be as short as approximately six months.

It is more likely that we will redeem the Securities in our sole discretion prior to maturity to the extent that the expected Contingent Coupon Payments payable on the Securities are greater than the coupon that would be payable on other instruments issued by us of comparable maturity, terms and credit rating trading in the market. The greater likelihood of us redeeming the Securities in that environment increases the risk that you will not be able to reinvest the proceeds from the redeemed Securities in another investment that provides a similar yield with a similar level of risk. We are less likely to redeem the Securities prior to maturity when the expected Contingent Coupon Payments payable on the Securities are less than the coupon that would be payable on other comparable instruments issued by us, which includes when the level of any of the Underlyings is less than its Coupon Barrier. Therefore, the Securities are more likely to remain outstanding when the expected Contingent Coupon Payments payable on the Securities are less than what would be payable on other comparable instruments and when your risk of not receiving a coupon is relatively higher.

You may not receive any Contingent Coupon Payments. The Securities do not provide for any regular fixed coupon payments. Investors in the Securities will not necessarily receive any Contingent Coupon Payments on the Securities. If the closing level of the Lowest Performing Underlying on a Calculation Day is less than its Coupon Barrier, you will not receive the Contingent Coupon Payment applicable to that Calculation Day. If the closing level of the Lowest Performing Underlying is less than its Coupon Barrier on all the Calculation Days during the term of the Securities, you will not receive any Contingent Coupon Payments during the term of the Securities, and you will not receive a positive return on the Securities.

Because the Securities are linked to the lowest performing (and not the average performance) of the Underlyings, you may not receive any return on the Securities and may lose a significant portion or all of your principal amount even if the closing level of one Underlying is always greater than or equal to its Coupon Barrier or Threshold Value, as applicable. Your Securities are linked to the lowest performing of the Underlyings, and a change in the level of one Underlying may not correlate with changes in the level of the other Underlying(s). The Securities are not linked to a basket composed of the Underlyings, where the depreciation in the level of one Underlying could be offset to some extent by the appreciation in the level of the other Underlying(s). In the case of the Securities, the individual performance of each Underlying would not be combined, and the depreciation in the level of one Underlying would not be offset by any appreciation in the level of the other Underlying(s). Even if the closing level of an Underlying is at or above its Coupon Barrier on a Calculation Day, you will not receive the Contingent Coupon Payment with respect to that Calculation Day if the closing level of another Underlying is below its Coupon Barrier on that day. In addition, even if the Ending

PS-9

Market Linked Securities-Callable with Contingent Coupon and Contingent Downside

Principal at Risk Securities Linked to the Lowest Performing of the S&P 500^® Index, the Russell 2000^® Index and the Dow Jones Industrial Average^® due December 29, 2028

Value of an Underlying is at or above its Threshold Value, you will lose a portion of your principal if the Ending Value of the Lowest Performing Underlying is below its Threshold Value.

Higher Contingent Coupon Rates are associated with greater risk. The Securities offer Contingent Coupon Payments at a higher rate, if paid, than the fixed rate we would pay on conventional debt securities of the same maturity. These higher potential Contingent Coupon Payments are associated with greater levels of expected risk as of the Pricing Date as compared to conventional debt securities, including the risk that you may not receive a Contingent Coupon Payment on one or more, or any, Contingent Coupon Payment Dates and the risk that you may lose a substantial portion, and possibly all, of the principal amount per Security at maturity. The volatility of the Underlyings and the correlation among the Underlyings are important factors affecting this risk. Volatility is a measurement of the size and frequency of daily fluctuations in the level of an Underlying, typically observed over a specified period of time. Volatility can be measured in a variety of ways, including on a historical basis or on an expected basis as implied by option prices in the market. Correlation is a measurement of the extent to which the levels of the Underlyings tend to fluctuate at the same time, in the same direction and in similar magnitudes. Greater expected volatility of the Underlyings or lower expected correlation among the Underlyings as of the Pricing Date may result in a higher Contingent Coupon Rate, but it also represents a greater expected likelihood as of the Pricing Date that the closing level of at least one Underlying will be less than its Coupon Barrier on one or more Calculation Days, such that you will not receive one or more, or any, Contingent Coupon Payments during the term of the Securities, and that the closing level of at least one Underlying will be less than its Threshold Value on the Final Calculation Day such that you will lose a substantial portion, and possibly all, of the principal amount per Security at maturity. In general, the higher the Contingent Coupon Rate is relative to the fixed rate we would pay on conventional debt securities, the greater the expected risk that you will not receive one or more, or any, Contingent Coupon Payments during the term of the Securities and that you will lose a substantial portion, and possibly all, of the principal amount per Security at maturity.

Your return on the Securities may be less than the yield on a conventional debt security of comparable maturity. Any return that you receive on the Securities may be less than the return you would earn if you purchased a conventional debt security with the same Maturity Date. As a result, your investment in the Securities may not reflect the full opportunity cost to you when you consider factors, such as inflation, that affect the time value of money. In addition, if interest rates increase during the term of the Securities, the Contingent Coupon Payment (if any) may be less than the yield on a conventional debt security of comparable maturity.

A Contingent Coupon Payment Date, an Optional Redemption Date and the Maturity Date may be postponed if a Calculation Day is postponed. A Calculation Day (including the Final Calculation Day) with respect to an Underlying will be postponed if the applicable originally scheduled Calculation Day is not a trading day with respect to any Underlying or if the calculation agent determines that a Market Disruption Event has occurred or is continuing with respect to that Underlying on that Calculation Day. If such a postponement occurs with respect to a Calculation Day other than the Final Calculation Day, then the related Contingent Coupon Payment Date, will be postponed. If such a postponement occurs with respect to the Final Calculation Day, the Maturity Date will be the later of (i) the initial Maturity Date and (ii) three business days after the last Final Calculation Day as postponed.

Any payment on the Securities is subject to our credit risk and the credit risk of the Guarantor, and actual or perceived changes in our or the Guarantor's creditworthiness are expected to affect the value of the Securities. The Securities are our senior unsecured debt securities. Any payment on the Securities will be fully and unconditionally guaranteed by the Guarantor. The Securities are not guaranteed by any entity other than the Guarantor. As a result, your receipt of any Contingent Coupon Payments or the payment upon an early redemption or the Maturity Payment Amount at maturity, as applicable, will be dependent upon our ability and the ability of the Guarantor to repay our respective obligations under the Securities on the applicable payment date, regardless of the closing level of the Lowest Performing Underlying as compared to its Starting Value. No assurance can be given as to what our financial condition or the financial condition of the Guarantor will be at any time after the Pricing Date of the Securities. If we and the Guarantor become unable to meet our respective financial obligations as they become due, you may not receive the amount(s) payable under the terms of the Securities.

In addition, our credit ratings and the credit ratings of the Guarantor are assessments by ratings agencies of our respective abilities to pay our obligations. Consequently, our or the Guarantor's perceived creditworthiness and actual or anticipated decreases in our or the Guarantor's credit ratings or increases in the spread between the yield on our respective securities and the yield on U.S. Treasury securities (the "credit spread") prior to the Maturity Date of your Securities may adversely affect the market value of the Securities. However, because your return on the Securities depends upon factors in addition to our ability and the ability of the Guarantor to pay our respective obligations, such as the levels of the Underlyings, an improvement in our or the Guarantor's credit ratings will not reduce the other investment risks related to the Securities.

We are a finance subsidiary and, as such, have no independent assets, operations or revenues. We are a finance subsidiary of the Guarantor, have no operations other than those related to the issuance, administration and repayment of our debt securities that are guaranteed by the Guarantor, and are dependent upon the Guarantor and/or its other subsidiaries to meet our obligations under the Securities in the ordinary course. Therefore, our ability to make payments on the Securities may be limited.

Valuation- and Market-related Risks

The public offering price you pay for the Securities will exceed their initial estimated value. The range of initial estimated values of the Securities that is provided on the cover page of this preliminary pricing supplement, and the initial estimated value as of the Pricing Date that will be provided in the final pricing supplement, are each estimates only, determined as of a particular point in time by

PS-10

Market Linked Securities-Callable with Contingent Coupon and Contingent Downside

Principal at Risk Securities Linked to the Lowest Performing of the S&P 500^® Index, the Russell 2000^® Index and the Dow Jones Industrial Average^® due December 29, 2028

reference to our and our affiliates' pricing models. These pricing models consider certain assumptions and variables, including our credit spreads and those of the Guarantor, the Guarantor's internal funding rate, mid-market terms on hedging transactions, expectations on interest rates, dividends and volatility, price-sensitivity analysis, and the expected term of the Securities. These pricing models rely in part on certain forecasts about future events, which may prove to be incorrect. If you attempt to sell the Securities prior to maturity, their market value may be lower than the price you paid for them and lower than their initial estimated value. This is due to, among other things, changes in the levels of the Underlyings, changes in the Guarantor's internal funding rate, and the inclusion in the public offering price of the underwriting discount and the hedging related charges, all as further described in "Structuring the Securities" below. These factors, together with various credit, market and economic factors over the term of the Securities, are expected to reduce the price at which you may be able to sell the Securities in any secondary market and will affect the value of the Securities in complex and unpredictable ways.

The initial estimated value does not represent a minimum or maximum price at which we, BAC, BofAS or any of our other affiliates or WFS or its affiliates would be willing to purchase your Securities in any secondary market (if any exists) at any time. The value of your Securities at any time after issuance will vary based on many factors that cannot be predicted with accuracy, including the performance of the Underlyings, our and BAC's creditworthiness and changes in market conditions.

We cannot assure you that a trading market for your Securities will ever develop or be maintained. We will not list the Securities on any securities exchange. We cannot predict how the Securities will trade in any secondary market or whether that market will be liquid or illiquid.

The Securities are not designed to be short-term trading instruments, and if you attempt to sell the Securities prior to maturity, their market value, if any, will be affected by various factors that interrelate in complex ways, and their market value may be less than the principal amount. The following factors are expected to affect the value of the Securities: value of the Underlyings at such time; volatility of the Underlyings; economic and other conditions generally; interest rates; dividend yields; exchange rate movements and volatility; our and the Guarantor's financial condition and creditworthiness; and time to maturity.

Conflict-related Risks

Trading and hedging activities by us, the Guarantor and any of our other affiliates, including BofAS, and WFS and its affiliates, may create conflicts of interest with you and may affect your return on the Securities and their market value. We, the Guarantor or one or more of our other affiliates, including BofAS, and WFS and its affiliates, may buy or sell the securities held by or included in the Underlyings, or futures or options contracts on the Underlyings or those securities, or other listed or over-the-counter derivative instruments linked to the Underlyings or those securities. While we, the Guarantor or one or more of our other affiliates, including BofAS, and WFS and its affiliates, may from time to time own securities represented by the Underlyings, except to the extent that BAC's or Wells Fargo & Company's (the parent company of WFS) common stock may be included in the Underlyings, as applicable, we, the Guarantor and our other affiliates, including BofAS, and WFS and its affiliates, do not control any company included in the Underlyings, and have not verified any disclosure made by any other company. We, the Guarantor or one or more of our other affiliates, including BofAS, or WFS and its affiliates, may execute such purchases or sales for our own or their own accounts, for business reasons, or in connection with hedging our obligations under the Securities. These transactions may present a conflict of interest between your interest in the Securities and the interests we, the Guarantor and our other affiliates, including BofAS, and WFS and its affiliates, may have in our or their proprietary accounts, in facilitating transactions, including block trades, for our or their other customers, and in accounts under our or their management. These transactions may adversely affect the levels of the Underlyings in a manner that could be adverse to your investment in the Securities. On or before the Pricing Date, any purchases or sales by us, the Guarantor or our other affiliates, including BofAS or others on its behalf, and WFS and its affiliates (including for the purpose of hedging some or all of our anticipated exposure in connection with the Securities), may affect the levels of the Underlyings. Consequently, the levels of the Underlyings may change subsequent to the Pricing Date, which may adversely affect the market value of the Securities.

We, the Guarantor or one or more of our other affiliates, including BofAS, and WFS and its affiliates, also expect to engage in hedging activities that could affect the levels of the Underlyings on the Pricing Date. In addition, these hedging activities, including the unwinding of a hedge, may decrease the market value of your Securities prior to maturity, and may affect the amounts to be paid on the Securities. We, the Guarantor or one or more of our other affiliates, including BofAS, and WFS and its affiliates, may purchase or otherwise acquire a long or short position in the Securities and may hold or resell the Securities. For example, BofAS may enter into these transactions in connection with any market making activities in which it engages. We cannot assure you that these activities will not adversely affect the levels of the Underlyings, the market value of your Securities prior to maturity or the amounts payable on the Securities.

If WFS, BofAS or an affiliate of either selling agent participating as a dealer in the distribution of the Securities conducts hedging activities for us in connection with the Securities, such selling agent or participating dealer will expect to realize a projected profit from such hedging activities, and this projected profit will be in addition to any discount, concession or fee received in connection with the sale of the Securities to you. This additional projected profit may create a further incentive for the selling agents or participating dealers to sell the Securities to you.

There may be potential conflicts of interest involving the calculation agent, which is an affiliate of ours. We have the right to appoint and remove the calculation agent. One of our affiliates will be the calculation agent for the Securities and, as such, will make a variety of determinations relating to the Securities, including the amounts that will be paid on the Securities. Under some circumstances, these duties could result in a conflict of interest between its status as our affiliate and its responsibilities as calculation agent.

PS-11

Market Linked Securities-Callable with Contingent Coupon and Contingent Downside

Principal at Risk Securities Linked to the Lowest Performing of the S&P 500^® Index, the Russell 2000^® Index and the Dow Jones Industrial Average^® due December 29, 2028

Underlying-related Risks

Any payments on the Securities will depend upon the performance of the Underlyings, and therefore the Securities are subject to the following risks, each as discussed in more detail in the accompanying product supplement.

The Securities are subject to risks associated with small-size capitalization companies. The stocks comprising the RTY are issued by companies with small-sized market capitalization. The stock prices of small-size companies may be more volatile than stock prices of large capitalization companies. Small-size capitalization companies may be less able to withstand adverse economic, market, trade and competitive conditions relative to larger companies. Small-size capitalization companies may also be more susceptible to adverse developments related to their products or services.

Tax-related Risks

The U.S. federal income tax consequences of the Securities are uncertain, and may be adverse to a holder of the Securities. See "U.S. Federal Income Tax Summary" below and "U.S. Federal Income Tax Summary" beginning on page PS-36 of the accompanying product supplement.

PS-12

Market Linked Securities-Callable with Contingent Coupon and Contingent Downside

Principal at Risk Securities Linked to the Lowest Performing of the S&P 500^® Index, the Russell 2000^® Index and the Dow Jones Industrial Average^® due December 29, 2028

If we redeem the Securities prior to the Maturity Date:

If we redeem the Securities prior to the Maturity Date, you will receive the principal amount of your Securities plus, if otherwise due, any Contingent Coupon Payment on the applicable Optional Redemption Date. In the event we redeem the Securities prior to the Maturity Date, your total return on the Securities will equal any Contingent Coupon Payments received prior to the Optional Redemption Date and any Contingent Coupon Payment received on the Optional Redemption Date.

If we do not redeem the Securities prior to the Maturity Date:

If we do not redeem the Securities prior to the Maturity Date, the following table illustrates, for a range of hypothetical Performance Factors of the Lowest Performing Underlying on the Final Calculation Day, the hypothetical Maturity Payment Amount payable at maturity per Security (excluding the final Contingent Coupon Payment, if any). The Performance Factor of the Lowest Performing Underlying on the Final Calculation Day is its Ending Value expressed as a percentage of its Starting Value (i.e., its Ending Value divided by its Starting Value).

The above figures do not take into account Contingent Coupon Payments, if any, received during the term of the Securities. As evidenced above, in no event will you have a positive rate of return based solely on the Maturity Payment Amount received at maturity; any positive return will be based solely on the Contingent Coupon Payments, if any, received during the term of the Securities.

The above figures are for purposes of illustration only and may have been rounded for ease of analysis. If the Securities are not redeemed at our option prior to the Maturity Date, the actual amount you will receive on the Maturity Date will depend on the actual Ending Value of the Lowest Performing Underlying on the Final Calculation Day. The performance of the better performing Underlyings is not relevant to your return on the Securities.

PS-13

Set forth below are examples that illustrate how to determine whether a Contingent Coupon Payment will be paid on a Contingent Coupon Payment Date, assuming we have not redeemed the Securities prior to such date. The examples do not reflect any specific Contingent Coupon Payment Date. The following examples reflect a hypothetical Contingent Coupon Rate of 8.40% per annum (the specified minimum Contingent Coupon Rate) and assume the hypothetical Starting Value, Coupon Barrier and closing level for each Underlying indicated in the examples. The terms used for purposes of these hypothetical examples do not represent any actual Starting Value or Coupon Barrier. The hypothetical Starting Value of 100.00 for each Underlying has been chosen for illustrative purposes only and does not represent the actual Starting Value for any Underlying. The actual Starting Value and Coupon Barrier for each Underlying will be determined on the Pricing Date and will be set forth under "Terms of the Securities" above in the final pricing supplement. For historical data regarding the actual closing levels of the Underlyings, see the historical information provided herein. These examples are for purposes of illustration only and the values used in the examples may have been rounded for ease of analysis. If we were to redeem the Securities on the relevant Contingent Coupon Payment Date in either of the examples below, you would receive the principal amount on the Contingent Coupon Payment Date in addition to a final Contingent Coupon Payment, if otherwise payable.

Example 1. The closing level of the Lowest Performing Underlying on the relevant Calculation Day is greater than or equal to its Coupon Barrier. As a result, investors receive a Contingent Coupon Payment on the applicable Contingent Coupon Payment Date.

Step 1: Determine which Underlying is the Lowest Performing Underlying on the relevant Calculation Day.

In this example, the Dow Jones Industrial Average^® has the lowest Performance Factor and is, therefore, the Lowest Performing Underlying on the relevant Calculation Day.

Step 2: Determine whether a Contingent Coupon Payment will be paid on the applicable Contingent Coupon Payment Date.

Since the hypothetical closing level of the Lowest Performing Underlying on the relevant Calculation Day is greater than or equal to its Coupon Barrier, you would receive a Contingent Coupon Payment on the applicable Contingent Coupon Payment Date. The Contingent Coupon Payment would be equal to $21.00 per Security, determined as follows: (i) $1,000 multiplied by 8.40% per annum divided by (ii) 4, rounded to the nearest cent.

Example 2. The closing level of the Lowest Performing Underlying on the relevant Calculation Day is less than its Coupon Barrier. As a result, investors do not receive a Contingent Coupon Payment on the applicable Contingent Coupon Payment Date.

Step 1: Determine which Underlying is the Lowest Performing Underlying on the relevant Calculation Day.

In this example, the S&P 500^® Index has the lowest Performance Factor and is, therefore, the Lowest Performing Underlying on the relevant Calculation Day.

Step 2: Determine whether a Contingent Coupon Payment will be paid on the applicable Contingent Coupon Payment Date.

Since the hypothetical closing level of the Lowest Performing Underlying on the relevant Calculation Day is less than its Coupon Barrier, you would not receive a Contingent Coupon Payment on the applicable Contingent Coupon Payment Date. This is the case even though the closing levels of the better performing Underlyings were greater than their respective Coupon Barriers on the relevant Calculation Day.

As this example illustrates, whether you receive a Contingent Coupon Payment on a Contingent Coupon Payment Date will depend solely on the closing level of the Lowest Performing Underlying on the relevant Calculation Day. This will be the case even if the better

PS-14

performing indices perform favorably. The performance of the better performing Underlyings is not relevant to your return on the Securities.

PS-15

Set forth below are examples of calculations of the Maturity Payment Amount payable on the Maturity Date, assuming that we have not redeemed the Securities prior to the Maturity Date and assuming the hypothetical Starting Value, Coupon Barrier, Threshold Value and Ending Value for each Underlying indicated in the examples. The terms used for purposes of these hypothetical examples do not represent any actual Starting Value, Coupon Barrier or Threshold Value. The hypothetical Starting Value of 100.00 for each Underlying has been chosen for illustrative purposes only and does not represent the actual Starting Value for any Underlying. The actual Starting Value, Coupon Barrier and Threshold Value for each Underlying will be determined on the Pricing Date and will be set forth under "Terms of the Securities" above in the final pricing supplement. For historical data regarding the actual closing levels of the Underlyings, see the historical information provided herein. These examples are for purposes of illustration only and the values used in the examples may have been rounded for ease of analysis.

Example 1. The Ending Value of the Lowest Performing Underlying on the Final Calculation Day is greater than its Starting Value, the Maturity Payment Amount is equal to the principal amount of your Securities at maturity and you receive a final Contingent Coupon Payment:

Step 1: Determine which Underlying is the Lowest Performing Underlying on the Final Calculation Day.

In this example, the Dow Jones Industrial Average^® has the lowest Performance Factor and is, therefore, the Lowest Performing Underlying on the Final Calculation Day.

Step 2: Determine the Maturity Payment Amount based on the Ending Value of the Lowest Performing Underlying on the Final Calculation Day.

Since the hypothetical Ending Value of the Lowest Performing Underlying on the Final Calculation Day is greater than or equal to its hypothetical Threshold Value, the Maturity Payment Amount would equal the principal amount. Although the hypothetical Ending Value of the Lowest Performing Underlying on the Final Calculation Day is significantly greater than its hypothetical Starting Value in this scenario, the Maturity Payment Amount will not exceed the principal amount.

In addition to any Contingent Coupon Payments received during the term of the Securities, on the Maturity Date you would receive $1,000.00 per Security. In addition, because the hypothetical Ending Value of the Lowest Performing Underlying on the Final Calculation Day is greater than its hypothetical Coupon Barrier, you would receive a final Contingent Coupon Payment on the Maturity Date.

Example 2. The Ending Value of the Lowest Performing Underlying on the Final Calculation Day is less than its Starting Value but greater than its Threshold Value and its Coupon Barrier, the Maturity Payment Amount is equal to the principal amount of your Securities at maturity and you receive a final Contingent Coupon Payment:

Step 1: Determine which Underlying is the Lowest Performing Underlying on the Final Calculation Day.

In this example, the S&P 500^® Index has the lowest Performance Factor and is, therefore, the Lowest Performing Underlying on the Final Calculation Day.

PS-16

Market Linked Securities-Callable with Contingent Coupon and Contingent Downside

Principal at Risk Securities Linked to the Lowest Performing of the S&P 500^® Index, the Russell 2000^® Index and the Dow Jones Industrial Average^® due December 29, 2028

Step 2: Determine the Maturity Payment Amount based on the Ending Value of the Lowest Performing Underlying on the Final Calculation Day.

Since the hypothetical Ending Value of the Lowest Performing Underlying is less than its hypothetical Starting Value, but not by more than 25%, you would be repaid the principal amount of your Securities at maturity.

In addition to any Contingent Coupon Payments received during the term of the Securities, on the Maturity Date you would receive $1,000.00 per Security. In addition, because the hypothetical Ending Value of the Lowest Performing Underlying on the Final Calculation Day is greater than its Coupon Barrier, you would receive a final Contingent Coupon Payment on the Maturity Date.

Example 3. The Ending Value of the Lowest Performing Underlying on the Final Calculation Day is less than its Threshold Value and its Coupon Barrier, the Maturity Payment Amount is less than the principal amount of your Securities at maturity and you do not receive a final Contingent Coupon Payment:

Step 1: Determine which Underlying is the Lowest Performing Underlying on the Final Calculation Day.

In this example, the Russell 2000^® Index has the lowest Performance Factor and is, therefore, the Lowest Performing Underlying on the Final Calculation Day.

Step 2: Determine the Maturity Payment Amount based on the Ending Value of the Lowest Performing Underlying on the Final Calculation Day.

Since the hypothetical Ending Value of the Lowest Performing Underlying on the Final Calculation Day is less than its hypothetical Threshold Value, you would lose a portion of the principal amount of your Securities and receive the Maturity Payment Amount equal to $450.00 per Security, calculated as follows:

= $1,000 × Performance Factor of the Lowest Performing Underlying on the Final Calculation Day

= $1,000 × 45.00%

= $450.00

In addition to any Contingent Coupon Payments received during the term of the Securities, on the Maturity Date you would receive $450.00 per Security. Because the hypothetical Ending Value of the Lowest Performing Underlying on the Final Calculation Day is less than its Coupon Barrier, you would not receive a final Contingent Coupon Payment on the Maturity Date.

These examples illustrate that you will not participate in any appreciation of any Underlying, but will be fully exposed to a decrease in the Lowest Performing Underlying if the Ending Value of the Lowest Performing Underlying on the Final Calculation Day is less than its Threshold Value, even if the Ending Values of the other Underlyings have appreciated or have not declined below their respective Threshold Values.

To the extent that the Starting Value, Coupon Barrier, Threshold Value and Ending Value of the Lowest Performing Underlying differ from the values assumed above, the results indicated above would be different.

PS-17

The SPX includes a representative sample of 500 companies in leading industries of the U.S. economy. The SPX is intended to provide an indication of the pattern of common stock price movement. The calculation of the level of the SPX is based on the relative value of the aggregate market value of the common stocks of 500 companies as of a particular time compared to the aggregate average market value of the common stocks of 500 similar companies during the base period of the years 1941 through 1943.

The SPX includes companies from eleven main groups: Communication Services; Consumer Discretionary; Consumer Staples; Energy; Financials; Health Care; Industrials; Information Technology; Real Estate; Materials; and Utilities. SPDJI may from time to time, in its sole discretion, add companies to, or delete companies from, the SPX to achieve the objectives stated above.

Company additions to the SPX must have an unadjusted company market capitalization of $18.0 billion or more (an increase from the previous requirement of an unadjusted company market capitalization of $15.8 billion or more).

SPDJI calculates the SPX by reference to the prices of the constituent stocks of the SPX without taking account of the value of dividends paid on those stocks. As a result, the return on the Securities will not reflect the return you would realize if you actually owned the SPX constituent stocks and received the dividends paid on those stocks.

Computation of the SPX

While SPDJI currently employs the following methodology to calculate the SPX, no assurance can be given that SPDJI will not modify or change this methodology in a manner that may affect payments on the Securities.

Historically, the market value of any component stock of the SPX was calculated as the product of the market price per share and the number of then outstanding shares of such component stock. In March 2005, SPDJI began shifting the SPX halfway from a market capitalization weighted formula to a float-adjusted formula, before moving the SPX to full float adjustment on September 16, 2005. SPDJI's criteria for selecting stocks for the SPX did not change with the shift to float adjustment. However, the adjustment affects each company's weight in the SPX.

Under float adjustment, the share counts used in calculating the SPX reflect only those shares that are available to investors, not all of a company's outstanding shares. Float adjustment excludes shares that are closely held by control groups, other publicly traded companies or government agencies.

In September 2012, all shareholdings representing more than 5% of a stock's outstanding shares, other than holdings by "block owners," were removed from the float for purposes of calculating the SPX. Generally, these "control holders" will include officers and directors, private equity, venture capital and special equity firms, other publicly traded companies that hold shares for control, strategic partners, holders of restricted shares, ESOPs, employee and family trusts, foundations associated with the company, holders of unlisted share classes of stock, government entities at all levels (other than government retirement/pension funds) and any individual person who controls a 5% or greater stake in a company as reported in regulatory filings. However, holdings by block owners, such as depositary banks, pension funds, mutual funds and ETF providers, 401(k) plans of the company, government retirement/pension funds, investment funds of insurance companies, asset managers and investment funds, independent foundations and savings and investment plans, will ordinarily be considered part of the float.

Treasury stock, stock options, restricted shares, equity participation units, warrants, preferred stock, convertible stock, and rights are not part of the float. Shares held in a trust to allow investors in countries outside the country of domicile, such as depositary shares and Canadian exchangeable shares are normally part of the float unless those shares form a control block. If a company has multiple classes of stock outstanding, shares in an unlisted or non-traded class are treated as a control block.

For each stock, an investable weight factor ("IWF") is calculated by dividing the available float shares by the total shares outstanding. Available float shares are defined as the total shares outstanding less shares held by control holders. This calculation is subject to a 5% minimum threshold for control blocks. For example, if a company's officers and directors hold 3% of the company's shares, and no other control group holds 5% of the company's shares, SPDJI would assign that company an IWF of 1.00, as no control group meets the 5% threshold. However, if a company's officers and directors hold 3% of the company's shares and another control group holds 20% of the company's shares, SPDJI would assign an IWF of 0.77, reflecting the fact that 23% of the company's outstanding shares are considered to be held for control. As of July 31, 2017, companies with multiple share class lines are no longer eligible for inclusion in the SPX. Constituents of the SPX prior to July 31, 2017 with multiple share class lines will be grandfathered in and continue to be included in the

PS-18

Market Linked Securities-Callable with Contingent Coupon and Contingent Downside

Principal at Risk Securities Linked to the Lowest Performing of the S&P 500^® Index, the Russell 2000^® Index and the Dow Jones Industrial Average^® due December 29, 2028

SPX. If a constituent company of the SPX reorganizes into a multiple share class line structure, that company will remain in the SPX at the discretion of the S&P Index Committee in order to minimize turnover.

The SPX is calculated using a base-weighted aggregate methodology. The level of the SPX reflects the total market value of all component stocks relative to the base period of the years 1941 through 1943. An indexed number is used to represent the results of this calculation in order to make the level easier to work with and track over time. The actual total market value of the component stocks during the base period of the years 1941 through 1943 has been set to an indexed level of 10. This is often indicated by the notation 1941- 43 = 10. In practice, the daily calculation of the SPX is computed by dividing the total market value of the component stocks by the "index divisor." By itself, the index divisor is an arbitrary number. However, in the context of the calculation of the SPX, it serves as a link to the original base period level of the SPX. The index divisor keeps the SPX comparable over time and is the manipulation point for all adjustments to the SPX, which is index maintenance.

Index Maintenance

Index maintenance includes monitoring and completing the adjustments for company additions and deletions, share changes, stock splits, stock dividends, and stock price adjustments due to company restructuring or spinoffs. Some corporate actions, such as stock splits and stock dividends, require changes in the common shares outstanding and the stock prices of the companies in the SPX, and do not require index divisor adjustments.

To prevent the level of the SPX from changing due to corporate actions, corporate actions which affect the total market value of the SPX require an index divisor adjustment. By adjusting the index divisor for the change in market value, the level of the SPX remains constant and does not reflect the corporate actions of individual companies in the SPX. Index divisor adjustments are made after the close of trading and after the calculation of the SPX closing level.

Changes in a company's shares outstanding of 5.00% or more due to mergers, acquisitions, public offerings, tender offers, Dutch auctions, or exchange offers are made as soon as reasonably possible. Share changes due to mergers or acquisitions of publicly held companies that trade on a major exchange are implemented when the transaction occurs, even if both of the companies are not in the same headline index, and regardless of the size of the change. All other changes of 5.00% or more (due to, for example, company stock repurchases, private placements, redemptions, exercise of options, warrants, conversion of preferred stock, notes, debt, equity participation units, at-the-market offerings, or other recapitalizations) are made weekly and are announced on Fridays for implementation after the close of trading on the following Friday. Changes of less than 5.00% are accumulated and made quarterly on the third Friday of March, June, September, and December, and are usually announced two to five days prior.

If a change in a company's shares outstanding of 5.00% or more causes a company's IWF to change by five percentage points or more, the IWF is updated at the same time as the share change. IWF changes resulting from partial tender offers are considered on a case by case basis.

PS-19

Market Linked Securities-Callable with Contingent Coupon and Contingent Downside

Principal at Risk Securities Linked to the Lowest Performing of the S&P 500^® Index, the Russell 2000^® Index and the Dow Jones Industrial Average^® due December 29, 2028

Historical Information

The following graph sets forth the daily historical performance of the SPX in the period from January 2, 2019 through December 2, 2024. We obtained this historical data from Bloomberg L.P. We have not independently verified the accuracy or completeness of the information obtained from Bloomberg L.P. The horizontal line in the graph represents the SPX's hypothetical Coupon Barrier and hypothetical Threshold Value of 4,535.3625 which is 75% of the SPX's hypothetical Starting Value of 6,047.15, which was its closing level on December 2, 2024. The actual Starting Value, Coupon Barrier and Threshold Value will be determined on the Pricing Date.

This historical data on the SPX is not necessarily indicative of the future performance of the SPX or what the value of the Securities may be. Any historical upward or downward trend in the level of the SPX during any period set forth above is not an indication that the level of the SPX is more or less likely to increase or decrease at any time over the term of the Securities.

Before investing in the Securities, you should consult publicly available sources for the levels of the SPX.

License Agreement

S&P^® is a registered trademark of Standard & Poor's Financial Services LLC ("S&P") and Dow Jones^® is a registered trademark of Dow Jones Trademark Holdings LLC ("Dow Jones"). These trademarks have been licensed for use by S&P Dow Jones Indices LLC. "Standard & Poor's^®," "S&P 500^®" and "S&P^®" are trademarks of S&P. These trademarks have been sublicensed for certain purposes by our affiliate, Merrill Lynch, Pierce, Fenner and Smith Incorporated. The SPX is a product of S&P Dow Jones Indices LLC and/or its affiliates and has been licensed for use by Merrill Lynch, Pierce, Fenner and Smith Incorporated.

The Securities are not sponsored, endorsed, sold or promoted by S&P Dow Jones Indices LLC, Dow Jones, S&P or any of their respective affiliates (collectively, "S&P Dow Jones Indices"). S&P Dow Jones Indices make no representation or warranty, express or implied, to the holders of the Securities or any member of the public regarding the advisability of investing in securities generally or in the Securities particularly or the ability of the SPX to track general market performance. S&P Dow Jones Indices' only relationship to Merrill Lynch, Pierce, Fenner and Smith Incorporated with respect to the SPX is the licensing of the SPX and certain trademarks, service marks and/or trade names of S&P Dow Jones Indices and/or its third party licensors. The SPX is determined, composed and calculated by S&P Dow Jones Indices without regard to us, Merrill Lynch, Pierce, Fenner and Smith Incorporated, or the Securities. S&P Dow Jones Indices have no obligation to take our needs, BAC's needs or the needs of Merrill Lynch, Pierce, Fenner and Smith Incorporated or holders of the Securities into consideration in determining, composing or calculating the SPX. S&P Dow Jones Indices are not responsible for and have not participated in the determination of the prices and amount of the Securities or the timing of the issuance or sale of the Securities or in the determination or calculation of the equation by which the Securities are to be converted into cash. S&P Dow Jones Indices have no obligation or liability in connection with the administration, marketing or trading of the Securities. There is no assurance that investment products based on the SPX will accurately track index performance or provide positive investment returns. S&P Dow Jones Indices LLC and its subsidiaries are not investment advisors. Inclusion of a security or futures contract within an index is not a recommendation by S&P Dow Jones Indices to buy, sell, or hold such security or futures contract, nor is it considered to be investment advice. Notwithstanding the foregoing, S&P Dow Jones Indices LLC and its affiliates may independently issue and/or sponsor financial products unrelated to the Securities currently being issued by us, but which may be similar to and competitive with the Securities. In addition, S&P Dow Jones Indices LLC and its affiliates may trade financial products which are linked to the performance of the SPX. It is possible that this trading activity will affect the value of the Securities.

S&P DOW JONES INDICES DO NOT GUARANTEE THE ADEQUACY, ACCURACY, TIMELINESS AND/OR THE COMPLETENESS OF THE SPX OR ANY DATA RELATED THERETO OR ANY COMMUNICATION, INCLUDING BUT NOT LIMITED TO, ORAL OR WRITTEN COMMUNICATION (INCLUDING ELECTRONIC COMMUNICATIONS) WITH RESPECT THERETO. S&P DOW JONES INDICES

PS-20

Market Linked Securities-Callable with Contingent Coupon and Contingent Downside

Principal at Risk Securities Linked to the Lowest Performing of the S&P 500^® Index, the Russell 2000^® Index and the Dow Jones Industrial Average^® due December 29, 2028

SHALL NOT BE SUBJECT TO ANY DAMAGES OR LIABILITY FOR ANY ERRORS, OMISSIONS, OR DELAYS THEREIN. S&P DOW JONES INDICES MAKE NO EXPRESS OR IMPLIED WARRANTIES, AND EXPRESSLY DISCLAIM ALL WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE OR USE OR AS TO RESULTS TO BE OBTAINED BY US, BAC, MERRILL LYNCH, PIERCE, FENNER AND SMITH INCORPORATED, HOLDERS OF THE SECURITIES, OR ANY OTHER PERSON OR ENTITY FROM THE USE OF THE SPX OR WITH RESPECT TO ANY DATA RELATED THERETO. WITHOUT LIMITING ANY OF THE FOREGOING, IN NO EVENT WHATSOEVER SHALL S&P DOW JONES INDICES BE LIABLE FOR ANY INDIRECT, SPECIAL, INCIDENTAL, PUNITIVE, OR CONSEQUENTIAL DAMAGES INCLUDING BUT NOT LIMITED TO, LOSS OF PROFITS, TRADING LOSSES, LOST TIME OR GOODWILL, EVEN IF THEY HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES, WHETHER IN CONTRACT, TORT, STRICT LIABILITY, OR OTHERWISE. THERE ARE NO THIRD PARTY BENEFICIARIES OF ANY AGREEMENTS OR ARRANGEMENTS BETWEEN S&P DOW JONES INDICES AND MERRILL LYNCH, PIERCE, FENNER AND SMITH INCORPORATED, OTHER THAN THE LICENSORS OF S&P DOW JONES INDICES.

PS-21

The RTY was developed by Russell Investments ("Russell") before FTSE International Limited and Russell combined in 2015 to create FTSE Russell, which is wholly owned by London Stock Exchange Group. Additional information on the RTY is available at the following website: http://www.ftserussell.com. No information on that website is deemed to be included or incorporated by reference in this pricing supplement.

Russell began dissemination of the RTY on January 1, 1984. FTSE Russell calculates and publishes the RTY. The RTY was set to 135 as of the close of business on December 31, 1986. The RTY is designed to track the performance of the small capitalization segment of the U.S. equity market. As a subset of the Russell 3000^® Index, the RTY consists of the smallest 2,000 companies included in the Russell 3000^® Index. The Russell 3000^® Index measures the performance of the largest 3,000 U.S. companies, representing approximately 98% of the investable U.S. equity market. The RTY is determined, comprised, and calculated by FTSE Russell without regard to the Securities.

Selection of Stocks Comprising the RTY

All companies eligible for inclusion in the RTY must be classified as a U.S. company under FTSE Russell's country-assignment methodology. If a company is incorporated, has a stated headquarters location, and trades in the same country (American Depositary Receipts and American Depositary Shares are not eligible), then the company is assigned to its country of incorporation. If any of the three factors are not the same, FTSE Russell defines three Home Country Indicators ("HCIs"): country of incorporation, country of headquarters, and country of the most liquid exchange (as defined by a two-year average daily dollar trading volume) from all exchanges within a country. Using the HCIs, FTSE Russell compares the primary location of the company's assets with the three HCIs. If the primary location of its assets matches any of the HCIs, then the company is assigned to the primary location of its assets. If there is insufficient information to determine the country in which the company's assets are primarily located, FTSE Russell will use the country from which the company's revenues are primarily derived for the comparison with the three HCIs in a similar manner. FTSE Russell uses the average of two years of assets or revenues data to reduce potential turnover. If conclusive country details cannot be derived from assets or revenues data, FTSE Russell will assign the company to the country of its headquarters, which is defined as the address of the company's principal executive offices, unless that country is a Benefit Driven Incorporation ("BDI") country, in which case the company will be assigned to the country of its most liquid stock exchange. BDI countries include: Anguilla, Antigua and Barbuda, Bahamas, Barbados, Belize, Bermuda, Bonaire, British Virgin Islands, Cayman Islands, Channel Islands, Cook Islands, Curacao, Faroe Islands, Gibraltar, Guernsey, Isle of Man, Jersey, Liberia, Marshall Islands, Panama, Saba, Sint Eustatius, Sint Maarten, and Turks and Caicos Islands. For any companies incorporated or headquartered in a U.S. territory, including Puerto Rico, Guam, and U.S. Virgin Islands, a U.S. HCI is assigned.

All securities eligible for inclusion in the RTY must trade on a major U.S. exchange. Stocks must have a closing price at or above $1.00 on their primary exchange on the last trading day in May to be eligible for inclusion during annual reconstitution. However, in order to reduce unnecessary turnover, if an existing member's closing price is less than $1.00 on the last day of May, it will be considered eligible if the average of the daily closing prices (from its primary exchange) during the month of May is equal to or greater than $1.00. Initial public offerings are added each quarter and must have a closing price at or above $1.00 on the last day of their eligibility period in order to qualify for index inclusion. If an existing stock does not trade on the "rank day" (typically the last trading day in May but a confirmed timetable is announced each spring) but does have a closing price at or above $1.00 on another eligible U.S. exchange, that stock will be eligible for inclusion.

An important criterion used to determine the list of securities eligible for the RTY is total market capitalization, which is defined as the market price as of the last trading day in May for those securities being considered at annual reconstitution times the total number of shares outstanding. Where applicable, common stock, non-restricted exchangeable shares and partnership units/membership interests are used to determine market capitalization. Any other form of shares such as preferred stock, convertible preferred stock, redeemable shares, participating preferred stock, warrants and rights, installment receipts or trust receipts, are excluded from the calculation. If multiple share classes of common stock exist, they are combined. In cases where the common stock share classes act independently of each other (e.g., tracking stocks), each class is considered for inclusion separately. If multiple share classes exist, the pricing vehicle will be designated as the share class with the highest two-year trading volume as of the rank day in May.

Companies with a total market capitalization of less than $30 million are not eligible for the RTY. Similarly, companies with only 5% or less of their shares available in the marketplace are not eligible for the RTY. Royalty trusts, limited liability companies, closed-end investment companies (companies that are required to report Acquired Fund Fees and Expenses, as defined by the SEC, including business development companies), blank check companies, special purpose acquisition companies, and limited partnerships are also ineligible for inclusion. Bulletin board, pink sheets, and over-the-counter traded securities are not eligible for inclusion. Exchange traded funds and mutual funds are also excluded.

Annual reconstitution is a process by which the RTY is completely rebuilt. Based on closing levels of the company's common stock on its primary exchange on the rank day of May of each year, FTSE Russell reconstitutes the composition of the RTY using the then existing market capitalizations of eligible companies. Reconstitution of the RTY occurs on the last Friday in June or, when the last Friday in June is the 29th or 30th, reconstitution occurs on the prior Friday. In addition, FTSE Russell adds initial public offerings to the RTY on a

PS-22

Market Linked Securities-Callable with Contingent Coupon and Contingent Downside

Principal at Risk Securities Linked to the Lowest Performing of the S&P 500^® Index, the Russell 2000^® Index and the Dow Jones Industrial Average^® due December 29, 2028

quarterly basis based on total market capitalization ranking within the market-adjusted capitalization breaks established during the most recent reconstitution. After membership is determined, a security's shares are adjusted to include only those shares available to the public. This is often referred to as "free float." The purpose of the adjustment is to exclude from market calculations the capitalization that is not available for purchase and is not part of the investable opportunity set.

Historical Information

The following graph sets forth the daily historical performance of the RTY in the period from January 2, 2019 through December 2, 2024. We obtained this historical data from Bloomberg L.P. We have not independently verified the accuracy or completeness of the information obtained from Bloomberg L.P. The horizontal line in the graph represents the RTY's hypothetical Coupon Barrier and hypothetical Threshold Value of 1,825.60425 which is 75% of the RTY's hypothetical Starting Value of 2,434.139, which was its closing level on December 2, 2024. The actual Starting Value, Coupon Barrier and Threshold Value will be determined on the Pricing Date.

This historical data on the RTY is not necessarily indicative of the future performance of the RTY or what the value of the Securities may be. Any historical upward or downward trend in the level of the RTY during any period set forth above is not an indication that the level of the RTY is more or less likely to increase or decrease at any time over the term of the Securities.

Before investing in the Securities, you should consult publicly available sources for the levels of the RTY.

PS-23

Market Linked Securities-Callable with Contingent Coupon and Contingent Downside

Principal at Risk Securities Linked to the Lowest Performing of the S&P 500^® Index, the Russell 2000^® Index and the Dow Jones Industrial Average^® due December 29, 2028

License Agreement

"Russell 2000^®" and "Russell 3000^®" are trademarks of FTSE Russell and have been licensed for use by our affiliate, Merrill Lynch, Pierce, Fenner & Smith Incorporated. The Securities are not sponsored, endorsed, sold, or promoted by FTSE Russell, and FTSE Russell makes no representation regarding the advisability of investing in the Securities.

FTSE Russell and Merrill Lynch, Pierce, Fenner & Smith Incorporated have entered into a non-exclusive license agreement providing for the license to Merrill Lynch, Pierce, Fenner & Smith Incorporated and its affiliates, including us, in exchange for a fee, of the right to use indices owned and published by FTSE Russell in connection with some securities, including the Securities. The license agreement provides that the following language must be stated in this pricing supplement:

The Securities are not sponsored, endorsed, sold, or promoted by FTSE Russell. FTSE Russell makes no representation or warranty, express or implied, to the holders of the Securities or any member of the public regarding the advisability of investing in securities generally or in the Securities particularly or the ability of the RTY to track general stock market performance or a segment of the same. FTSE Russell's publication of the RTY in no way suggests or implies an opinion by FTSE Russell as to the advisability of investment in any or all of the securities upon which the RTY is based. FTSE Russell's only relationship to Merrill Lynch, Pierce, Fenner & Smith Incorporated and to us is the licensing of certain trademarks and trade names of FTSE Russell and of the RTY, which is determined, composed, and calculated by FTSE Russell without regard to Merrill Lynch, Pierce, Fenner & Smith Incorporated, us, or the Securities. FTSE Russell is not responsible for and has not reviewed the Securities nor any associated literature or publications and FTSE Russell makes no representation or warranty express or implied as to their accuracy or completeness, or otherwise. FTSE Russell reserves the right, at any time and without notice, to alter, amend, terminate, or in any way change the RTY. FTSE Russell has no obligation or liability in connection with the administration, marketing, or trading of the Securities.

FTSE RUSSELL DOES NOT GUARANTEE THE ACCURACY AND/OR THE COMPLETENESS OF THE RTY OR ANY DATA INCLUDED THEREIN AND FTSE RUSSELL SHALL HAVE NO LIABILITY FOR ANY ERRORS, OMISSIONS, OR INTERRUPTIONS THEREIN. FTSE RUSSELL MAKES NO WARRANTY, EXPRESS OR IMPLIED, AS TO RESULTS TO BE OBTAINED BY MERRILL LYNCH, PIERCE, FENNER & SMITH INCORPORATED, US, HOLDERS OF THE SECURITIES, OR ANY OTHER PERSON OR ENTITY FROM THE USE OF THE RTY OR ANY DATA INCLUDED THEREIN. FTSE RUSSELL MAKES NO EXPRESS OR IMPLIED WARRANTIES, AND EXPRESSLY DISCLAIMS ALL WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE OR USE WITH RESPECT TO THE RTY OR ANY DATA INCLUDED THEREIN. WITHOUT LIMITING ANY OF THE FOREGOING, IN NO EVENT SHALL FTSE RUSSELL HAVE ANY LIABILITY FOR ANY SPECIAL, PUNITIVE, INDIRECT, OR CONSEQUENTIAL DAMAGES (INCLUDING LOST PROFITS), EVEN IF NOTIFIED OF THE POSSIBILITY OF SUCH DAMAGES.

PS-24

Market Linked Securities-Callable with Contingent Coupon and Contingent Downside

Principal at Risk Securities Linked to the Lowest Performing of the S&P 500^® Index, the Russell 2000^® Index and the Dow Jones Industrial Average^® due December 29, 2028

Unless otherwise stated, all information on the INDU provided in this pricing supplement is derived from Dow Jones Indexes, the marketing name and a licensed trademark of SPDJI. The INDU is a price-weighted index, which means an underlying stock's weight in the INDU is based on its price per share rather than the total market capitalization of the issuer. The INDU is designed to provide an indication of the composite performance of 30 common stocks of corporations representing a broad cross-section of U.S. industry. The corporations represented in the INDU tend to be market leaders in their respective industries and their stocks are typically widely held by individuals and institutional investors.

The INDU is maintained by an Averages Committee comprised of three representatives of SPDJI and two representatives of The Wall Street Journal (the "WSJ"). Generally, composition changes occur only after mergers, corporate acquisitions or other dramatic shifts in a component's core business. When such an event necessitates that one component be replaced, the entire INDU is reviewed. As a result, when changes are made they typically involve more than one component. While there are no rules for component selection, a stock typically is added only if it has an excellent reputation, demonstrates sustained growth, is of interest to a large number of investors and accurately represents the sector(s) covered by the average.

Changes in the composition of the INDU are made entirely by the Averages Committee without consultation with the corporations represented in the INDU, any stock exchange, any official agency or us. Unlike most other indices, which are reconstituted according to a fixed review schedule, constituents of the INDU are reviewed on an as-needed basis. Changes to the common stocks included in the INDU tend to be made infrequently, and the underlying stocks of the INDU may be changed at any time for any reason. The companies currently represented in the INDU are incorporated in the United States and its territories and their stocks are listed on the New York Stock Exchange and The Nasdaq Stock Market.

The INDU initially consisted of 12 common stocks and was first published in the WSJ in 1896. The INDU was increased to include 20 common stocks in 1916 and to include 30 common stocks in 1928. The number of common stocks in the INDU has remained at 30 since 1928, and, in an effort to maintain continuity, the constituent corporations represented in the INDU have been changed on a relatively infrequent basis. The INDU includes companies from nine main groups: Basic Materials; Consumer Goods; Consumer Services; Financials; Healthcare; Industrials; Oil & Gas; Technology; and Telecommunications.

Computation of the INDU

The level of the INDU is the sum of the primary exchange prices of each of the 30 component stocks included in the INDU, divided by a divisor that is designed to provide a meaningful continuity in the level of the INDU. Because the INDU is price-weighted, stock splits or changes in the component stocks could result in distortions in the INDU level. In order to prevent these distortions related to extrinsic factors, the divisor is periodically changed in accordance with a mathematical formula that reflects adjusted proportions within the INDU. The current divisor of the INDU is published daily in the WSJ and other publications. In addition, other statistics based on the INDU may be found in a variety of publicly available sources.

Historical Information

The following graph sets forth the daily historical performance of the INDU in the period from January 2, 2019 through December 2, 2024. We obtained this historical data from Bloomberg L.P. We have not independently verified the accuracy or completeness of the information obtained from Bloomberg L.P. The horizontal line in the graph represents the INDU's hypothetical Coupon Barrier and hypothetical Threshold Value of 33,586.50 which is 75% of the INDU's hypothetical Starting Value of 44,782.00, which was its closing level on December 2, 2024. The actual Starting Value, Coupon Barrier and Threshold Value will be determined on the Pricing Date.

PS-25

Market Linked Securities-Callable with Contingent Coupon and Contingent Downside

Principal at Risk Securities Linked to the Lowest Performing of the S&P 500^® Index, the Russell 2000^® Index and the Dow Jones Industrial Average^® due December 29, 2028

This historical data on the INDU is not necessarily indicative of the future performance of the INDU or what the value of the Securities may be. Any historical upward or downward trend in the level of the INDU during any period set forth above is not an indication that the level of the INDU is more or less likely to increase or decrease at any time over the term of the Securities.

Before investing in the Securities, you should consult publicly available sources for the levels of the INDU.

License Agreement

S&P^® is a registered trademark of Standard & Poor's Financial Services LLC ("S&P") and Dow Jones^® is a registered trademark of Dow Jones Trademark Holdings LLC ("Dow Jones"). These trademarks have been licensed for use by S&P Dow Jones Indices LLC. "Standard & Poor's^®," "Dow Jones Industrial Average^®" and "S&P^®" are trademarks of S&P. These trademarks have been sublicensed for certain purposes by our affiliate, Merrill Lynch, Pierce, Fenner & Smith Incorporated. The INDU is a product of S&P Dow Jones Indices LLC and/or its affiliates and has been licensed for use by Merrill Lynch, Pierce, Fenner & Smith Incorporated.

The Securities are not sponsored, endorsed, sold or promoted by S&P Dow Jones Indices LLC, Dow Jones, S&P or any of their respective affiliates (collectively, "S&P Dow Jones Indices"). S&P Dow Jones Indices make no representation or warranty, express or implied, to the holders of the Securities or any member of the public regarding the advisability of investing in securities generally or in the Securities particularly or the ability of the INDU to track general market performance. S&P Dow Jones Indices' only relationship to Merrill Lynch, Pierce, Fenner & Smith Incorporated with respect to the INDU is the licensing of the INDU and certain trademarks, service marks and/or trade names of S&P Dow Jones Indices and/or its third party licensors. The INDU is determined, composed and calculated by S&P Dow Jones Indices without regard to us, Merrill Lynch, Pierce, Fenner & Smith Incorporated, or the Securities. S&P Dow Jones Indices have no obligation to take our needs, BAC's needs or the needs of Merrill Lynch, Pierce, Fenner & Smith Incorporated or holders of the Securities into consideration in determining, composing or calculating the INDU. S&P Dow Jones Indices are not responsible for and have not participated in the determination of the prices and amount of the Securities or the timing of the issuance or sale of the Securities or in the determination or calculation of the equation by which the Securities are to be converted into cash. S&P Dow Jones Indices have no obligation or liability in connection with the administration, marketing or trading of the Securities. There is no assurance that investment products based on the INDU will accurately track index performance or provide positive investment returns. S&P Dow Jones Indices LLC and its subsidiaries are not investment advisors. Inclusion of a security or futures contract within an index is not a recommendation by S&P Dow Jones Indices to buy, sell, or hold such security or futures contract, nor is it considered to be investment advice. Notwithstanding the foregoing, S&P Dow Jones Indices LLC and its affiliates may independently issue and/or sponsor financial products unrelated to the Securities currently being issued by us, but which may be similar to and competitive with the Securities. In addition, S&P Dow Jones Indices LLC and its affiliates may trade financial products which are linked to the performance of the INDU. It is possible that this trading activity will affect the value of the Securities.

S&P DOW JONES INDICES DO NOT GUARANTEE THE ADEQUACY, ACCURACY, TIMELINESS AND/OR THE COMPLETENESS OF THE INDU OR ANY DATA RELATED THERETO OR ANY COMMUNICATION, INCLUDING BUT NOT LIMITED TO, ORAL OR WRITTEN COMMUNICATIONS (INCLUDING ELECTRONIC COMMUNICATIONS) WITH RESPECT THERETO. S&P DOW JONES INDICES SHALL NOT BE SUBJECT TO ANY DAMAGES OR LIABILITY FOR ANY ERRORS, OMISSIONS, OR DELAYS THEREIN. S&P DOW JONES INDICES MAKE NO EXPRESS OR IMPLIED WARRANTIES, AND EXPRESSLY DISCLAIM ALL WARRANTIES, OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE OR USE OR AS TO RESULTS TO BE OBTAINED BY US, BAC, MERRILL LYNCH, PIERCE, FENNER & SMITH INCORPORATED, HOLDERS OF THE SECURITIES, OR ANY OTHER PERSON OR ENTITY FROM THE USE OF THE INDU OR WITH RESPECT TO ANY DATA RELATED THERETO. WITHOUT LIMITING ANY OF THE FOREGOING, IN NO EVENT WHATSOEVER SHALL S&P DOW JONES INDICES BE LIABLE FOR ANY INDIRECT, SPECIAL, INCIDENTAL, PUNITIVE, OR CONSEQUENTIAL DAMAGES INCLUDING BUT NOT LIMITED TO, LOSS OF PROFITS, TRADING LOSSES, LOST TIME OR GOODWILL, EVEN IF THEY HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES, WHETHER IN CONTRACT, TORT, STRICT LIABILITY, OR OTHERWISE. THERE ARE NO THIRD PARTY BENEFICIARIES OF ANY AGREEMENTS OR ARRANGEMENTS BETWEEN S&P DOW JONES INDICES AND MERRILL LYNCH, PIERCE, FENNER & SMITH INCORPORATED, OTHER THAN THE LICENSORS OF S&P DOW JONES INDICES.

PS-26

The Securities are our debt securities, the return on which is linked to the performance of the Underlyings. The related guarantee is BAC's obligation. Any payments on the Securities, including payment of the Redemption Amount, depend on the credit risk of BofA Finance and BAC and on the performance of the Underlyings. As is the case for all of our and BAC's respective debt securities, including our market-linked securities, the economic terms of the Securities reflect our and BAC's actual or perceived creditworthiness at the time of pricing. In addition, because market-linked securities result in increased operational, funding and liability management costs to us and BAC, BAC typically borrows the funds under these types of securities at a rate, which we refer to in this pricing supplement as BAC's internal funding rate, that is more favorable to BAC than the rate that it might pay for a conventional fixed or floating rate debt security. This generally relatively lower internal funding rate, which is reflected in the economic terms of the Securities, along with the fees and charges associated with market-linked securities, typically results in the initial estimated value of the Securities on the Pricing Date being less than their public offering price.

The initial estimated value range of the Securities is set forth on the cover page of this preliminary pricing supplement. The final pricing supplement will set forth the initial estimated value of the Securities as of the Pricing Date.

In order to meet our payment obligations on the Securities, at the time we issue the Securities, we may choose to enter into certain hedging arrangements (which may include call options, put options or other derivatives) with BofAS or one of our other affiliates. The terms of these hedging arrangements are determined based upon terms provided by BofAS and its affiliates, and take into account a number of factors, including our and BAC's creditworthiness, interest rate movements, the volatility of the Underlying, the tenor of the Securities and the hedging arrangements. The economic terms of the Securities and their initial estimated value depend in part on the terms of these hedging arrangements.

BofAS has advised us that the hedging arrangements will include hedging related charges, reflecting the costs associated with, and our affiliates' profit earned from, these hedging arrangements. Since hedging entails risk and may be influenced by unpredictable market forces, actual profits or losses from these hedging transactions may be more or less than any expected amounts.

For further information, see "Selected Risk Considerations" beginning on page PS-9 above and "Use of Proceeds" on page PS-17 of the accompanying prospectus.

PS-27

You should consider the U.S. federal income tax consequences of an investment in the Securities, including the following:

You should consult your own tax advisor concerning the U.S. federal income tax consequences to you of acquiring, owning, and disposing of the Securities, as well as any tax consequences arising under the laws of any state, local, foreign, or other tax jurisdiction and the possible effects of changes in U.S. federal or other tax laws. You should review carefully the discussion under the section entitled "U.S. Federal Income Tax Summary" beginning on page PS-36 of the accompanying product supplement.

PS-28