Primary Offering Prospectus - Form 424B2

This term sheet, which is not complete and may be changed, relates to an effective Registration Statement under the Securities Act of 1933. This term sheet and the accompanying product supplement, prospectus supplement and prospectus are not an offer to sell these notes in any country or jurisdiction where such an offer would not be permitted.

The notes are being issued by BofA Finance LLC ("BofA Finance") and are fully and unconditionally guaranteed by Bank of America Corporation ("BAC"). Investing in the notes involves a number of risks. There are important differences between the notes and a conventional debt security, including different investment risks and certain additional costs. See "Risk Factors" beginning on page TS-8 of this term sheet, page PS-9 of the accompanying product supplement, page S-6 of the accompanying Series A MTN prospectus supplement and page 7 of the accompanying prospectus.

The initial estimated value of the notes as of the pricing date is expected to be between $9.25 and $9.75 per unit, which is less than the public offering price listed below. See "Summary" on the following page, "Risk Factors" beginning on page TS-8 of this term sheet and "Structuring the Notes" on page TS-14 of this term sheet for additional information. The actual value of your notes at any time will reflect many factors and cannot be predicted with accuracy.

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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 Note Prospectus (as defined below) is truthful or complete. Any representation to the contrary is a criminal offense.

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The notes and the related guarantee:

BofA Securities

November , 2024

Summary

The Autocallable Contingent Coupon (with Memory) Barrier Notes Linked to the Worst-Performing of the Common Stock of Adobe Inc., the Class A Common Stock of CrowdStrike Holdings, Inc. and the Common Stock of NVIDIA Corporation, due November , 2025 (the "notes") are our senior unsecured debt securities. Payments on the notes are fully and unconditionally guaranteed by BAC. The notes and the related guarantee are not insured by the Federal Deposit Insurance Corporation or secured by collateral. The notes will rank equally in right of payment with all of BofA Finance's other unsecured and unsubordinated obligations, except obligations that are subject to any priorities or preferences by law, and 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 notes, including any repayment of principal, will be subject to the credit risk of BofA Finance, as issuer, and BAC, as guarantor. The notes will pay a Contingent Coupon Payment (with Memory) on the applicable Coupon Payment Date if the Observation Value of the Worst-Performing Market Measure (as described in "Terms of the Notes" below) on the applicable quarterly Coupon Observation Date is greater than or equal to its Coupon Barrier. The Contingent Coupon Payment (with Memory) payable on any Coupon Payment Date will be calculated according to the formula described below in "Terms of the Notes-Contingent Coupon Payments (with Memory)." The notes will be automatically called if the Observation Value of the Worst-Performing Market Measure on any Call Observation Date is equal to or greater than its Call Value. If your notes are called, you will receive the Call Payment on the applicable Call Payment Date, and no further amounts will be payable on the notes. If your notes are not called, at maturity, if the Ending Value of the Worst-Performing Market Measure is greater than or equal to its Threshold Value, you will receive the principal amount plus the final Contingent Coupon Payment (with Memory); otherwise, your notes are subject to 1-to-1 downside exposure to decreases in the Worst-Performing Market Measure from its Starting Value, with up to 100.00% of the principal amount at risk. All payments on the notes will be calculated based on the $10 principal amount per unit and will depend on the performance of the Worst-Performing Market Measure, subject to our and BAC's credit risk. See "Terms of the Notes" below.

The economic terms of the notes are based on BAC's internal funding rate, which is the rate it would pay to borrow funds through the issuance of market-linked notes and the economic terms of certain related hedging arrangements. BAC's internal funding rate is typically lower than the rate it would pay when it issues conventional fixed or floating rate debt securities. This difference in funding rate, as well as the underwriting discount and costs associated with hedging the notes, will reduce the economic terms of the notes to you and the initial estimated value of the notes on the pricing date. Due to these factors, the public offering price you pay to purchase the notes will be greater than the initial estimated value of the notes.

On the cover page of this term sheet, we have provided the initial estimated value range for the notes. This initial estimated value range was determined based on our, BAC's and our other affiliates' pricing models, which take into consideration BAC's internal funding rate and the market prices for the hedging arrangements related to the notes. The initial estimated value of the notes calculated on the pricing date will be set forth in the final term sheet made available to investors in the notes. For more information about the initial estimated value and the structuring of the notes, see "Structuring the Notes" on page TS-14.

Determining Payments on the Notes

Contingent Coupon Payments (with Memory)

The notes will pay a Contingent Coupon Payment (with Memory) on the applicable Coupon Payment Date if the Observation Value of the Worst-Performing Market Measure on the applicable quarterly Coupon Observation Date is greater than or equal to its Coupon Barrier.

Automatic Call Provision

The notes will be called automatically if the Observation Value of the Worst-Performing Market Measure on a Call Observation Date is equal to or greater than its Call Value. If the notes are called, you will receive $10 per unit plus the Contingent Coupon Payment (with Memory) otherwise due on the applicable Call Payment Date.

Redemption Amount Determination

If the notes are not automatically called, on the maturity date, you will receive a cash payment per unit determined as follows:

You will lose all or a significant portion of the principal amount of the notes if the Ending Value of the Worst Performing Market Measure is less than its Threshold Value. Even with any Contingent Coupon Payments (with Memory), the return on the notes could be negative.

The terms and risks of the notes are contained in this term sheet and in the following:

These documents (together, the "Note Prospectus") 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 Merrill Lynch, Pierce, Fenner & Smith Incorporated ("MLPF&S") or BofAS by calling 1-800-294-1322. Before you invest, you should read the Note Prospectus, including this term sheet, 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 the Note Prospectus. Certain terms used but not defined in this term sheet have the meanings set forth in the accompanying product 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.

Investor Considerations

We urge you to consult your investment, legal, tax, accounting, and other advisors before you invest in the notes.

Examples of Hypothetical Payments

The following examples are for purposes of illustration only. They are based on hypothetical values and show hypothetical returns on the notes. They illustrate the calculation of the Contingent Coupon Payment (with Memory), the Call Payment or the Redemption Amount, as applicable, based on the hypothetical terms set forth below. The actual amount you receive and the resulting return will depend on the actual Starting Values, Coupon Barriers, Threshold Values, Call Values and Observation Values of the Underlying Stocks, the actual Contingent Coupon Payments (with Memory), whether the notes are automatically called and the term of your investment. The following examples do not take into account any tax consequences from investing in the notes. These examples are based on the following hypothetical terms:

The hypothetical Starting Value of 100.00 for the Worst-Performing Market Measure used in these examples has been chosen for illustrative purposes only, and does not represent a likely actual Starting Value of any Underlying Stock. For recent actual prices of the Underlying Stocks, see "The Underlying Stocks" section below. The Ending Value of the Worst-Performing Market Measure will not include any income generated by dividends paid on the Underlying Stocks, which you would otherwise be entitled to receive if you invested in the Underlying Stocks directly. In addition, all payments on the notes are subject to issuer and guarantor credit risk.

Example 1 - The Observation Value of the Worst-Performing Market Measure on the first Coupon Observation Date is 50.00. Therefore, no Contingent Coupon Payment (with Memory) is paid on the related Coupon Payment Date.

Example 2 - The Observation Value of the Worst-Performing Market Measure on the first Coupon Observation Date is below its Coupon Barrier. Therefore, no Contingent Coupon Payment (with Memory) is paid on the related Coupon Payment Date. The Observation Value of the Worst-Performing Market Measure on the second Coupon Observation Date (which is also the first Call Observation Date) is 105.00. Therefore, the notes will be automatically called at $10.00 plus the Contingent Coupon Payment (with Memory) otherwise due on the applicable Call Payment Date, calculated as follows:

the product of the Contingent Coupon Payment (with Memory) applicable to a single Coupon Payment Date and the number of Coupon Payment Dates that have occurred up to the relevant Coupon Payment Date (inclusive of the relevant Coupon Payment Date) minus (ii) the sum of all Contingent Coupon Payments (with Memory) previously paid.

= (i) $0.525 x 2 - (ii) $0.00 = $1.050 per unit

Call Payment on the second Call Payment Date = $11.050 per unit.

Example 3 - The Observation Value of the Worst-Performing Market Measure on the first Coupon Observation Date is below its Coupon Barrier. Therefore, no Contingent Coupon Payment (with Memory) is paid on the related Coupon Payment Date. The Observation Value of the Worst-Performing Market Measure on the second Coupon Observation Date (which is also the first Call Observation Date) is above its Coupon Barrier but below its Call Value. Therefore, a Contingent Coupon Payment (with Memory) of $1.050 per unit ($0.525 x 2 - $0) is paid on the related Coupon Payment Date but the notes are not automatically called. The Observation Value of the Worst-Performing Market Measure on the third Coupon Observation Date is 75.00. Therefore, the notes are not automatically called but a Contingent Coupon Payment (with Memory) is paid on the related Coupon Payment Date, calculated as follows:

the product of the Contingent Coupon Payment (with Memory) applicable to a single Coupon Payment Date and the number of Coupon Payment Dates that have occurred up to the relevant Coupon Payment Date (inclusive of the relevant Coupon Payment Date) minus (ii) the sum of all Contingent Coupon Payments (with Memory) previously paid.

= (i) $0.525 x 3 - (ii) $1.050 = $0.525 per unit

Contingent Coupon Payment (with Memory) payable on the third Coupon Payment Date = $0.525 per unit.

Example 4 - The Observation Value of the Worst-Performing Market Measure on each of the first three Coupon Observation Dates (which also include the Call Observation Dates) is above its Coupon Barrier but below its Call Value. Therefore, the notes are not automatically called prior to maturity but a Contingent Coupon Payment (with Memory) of $0.525 per unit is paid on each of the first three Coupon Payment Dates. The Ending Value of the Worst-Performing Market Measure is 95.00, which is greater than its Coupon Barrier and its Threshold Value. The Redemption Amount will equal $10.00 plus the final Contingent Coupon Payment (with Memory) of $0.525 = $10.525 per unit.

Example 5 - The Observation Value of the Worst-Performing Market Measure on each of the first three Coupon Observation Dates (which also include the Call Observation Dates) is below its Coupon Barrier and its Call Value. Therefore, the notes are not automatically called prior to maturity and no Contingent Coupon Payment (with Memory) is paid on any of the first three Coupon Payment Dates. If the Ending Value of the Worst-Performing Market Measure is less than its Threshold Value (which would also be less than its Coupon Barrier), the Redemption Amount will be less, and possibly significantly less, than the principal amount and no final Contingent Coupon Payment (with Memory) will be payable at maturity. For example, if the Ending Value of the Worst-Performing Market Measure is 50.00, the Redemption Amount per unit will be:

Risk Factors

There are important differences between the notes and a conventional debt security. An investment in the notes involves significant risks, including those listed below. You should carefully review the more detailed explanation of risks relating to the notes in the "Risk Factors" sections beginning on page PS-9 of the accompanying product supplement, page S-6 of the Series A MTN prospectus supplement, and page 7 of the prospectus identified above. The notes are not an appropriate investment for you if you are not knowledgeable about significant elements of the notes or financial matters in general. We also urge you to consult your investment, legal, tax, accounting, and other advisors before you invest in the notes.

Structure-related Risks

Valuation- and Market-related Risks

Conflict-related Risks

Market Measure-related Risks

Tax-related Risks

Additional Risk Factors

CRWD has limited actual historical information.

CRWD commenced trading on the Nasdaq Select Global Market recently. Because CRWD is of recent origin and limited actual historical performance data exists with respect to it, your investment in the notes may involve a greater risk than investing in notes linked to Underlying Stocks with a more established record of performance.

The Underlying Stocks

We have derived the following information from publicly available documents. We have not independently verified the accuracy or completeness of the following information.

Because each Underlying Stock is registered under the Securities Exchange Act of 1934, as amended, the Underlying Companies are required to file periodically certain financial and other information specified by the SEC. Information provided to or filed with the SEC by the Underlying Companies can be located through the SEC's website at www.sec.gov by reference to the applicable CIK number set forth below.

This term sheet relates only to the notes and does not relate to any Underlying Stock or to any other securities of the Underlying Companies. None of us, MLPF&S, BofAS or any of our respective affiliates has participated or will participate in the preparation of the Underlying Companies' publicly available documents. None of us, MLPF&S, BofAS or any of our respective affiliates has made any due diligence inquiry with respect to the Underlying Companies in connection with the offering of the notes. None of us, MLPF&S, BofAS or any of our respective affiliates makes any representation that the publicly available documents or any other publicly available information regarding the Underlying Companies are accurate or complete. Furthermore, there can be no assurance that all events occurring prior to the date of this term sheet, including events that would affect the accuracy or completeness of these publicly available documents that would affect the trading price of the Underlying Stocks, have been or will be publicly disclosed. Subsequent disclosure of any events or the disclosure of or failure to disclose material future events concerning an Underlying Company could affect the value of the applicable Underlying Stock and therefore could affect your return on the notes. The selection of the Underlying Stocks is not a recommendation to buy or sell the Underlying Stocks.

Common Stock of Adobe Inc.

Adobe Inc. develops, markets, and supports computer software products and technologies. The company's products allow users to express and use information across all print and electronic media. The company offers a line of application software products, type products, and content for creating, distributing, and managing information. This Underlying Stock trades on the Nasdaq Global Select Market under the symbol "ADBE." The company's CIK number is 0000796343.

The following graph shows the daily historical performance of ADBEon its primary exchange for the period from January 1, 2014through November 11, 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. On November 11, 2024, the Closing Market Price of ADBE was $504.48. The graph below may have been adjusted to reflect certain corporate actions such as stock splits and reverse stock splits.

Historical Performance of ADBE

This historical data on ADBEis not necessarily indicative of the future performance of ADBEor what the value of the notes may be. Any historical upward or downward trend in the price per share of ADBEduring any period set forth above is not an indication that the price per share of ADBE is more or less likely to increase or decrease at any time over the term of the notes.

Before investing in the notes, you should consult publicly available sources for the prices and trading pattern of ADBE.

Class A Common Stock of CrowdStrike Holdings, Inc.

CrowdStrike Holdings, Inc. operates as a holding company. The company, through its subsidiaries, provides cyber security platform to protect enterprise and prevents attacks on endpoints. The company serves customers worldwide. This Underlying Stock trades on the Nasdaq Global Select Market under the symbol "CRWD." The company's CIK number is 0001535527.

The following graph shows the daily historical performance of CRWDon its primary exchange for the period fromJune 12, 2019 (the date CRWD began trading)through November 11, 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. On November 11, 2024, the Closing Market Price of CRWD was $342.42. The graph below may have been adjusted to reflect certain corporate actions such as stock splits and reverse stock splits.

Historical Performance of CRWD

This historical data on CRWDis not necessarily indicative of the future performance of CRWDor what the value of the notes may be. Any historical upward or downward trend in the price per share of CRWDduring any period set forth above is not an indication that the price per share of CRWD is more or less likely to increase or decrease at any time over the term of the notes.

Before investing in the notes, you should consult publicly available sources for the prices and trading pattern of CRWD.

Common Stock of NVIDIA Corporation

NVIDIA Corporation designs, develops, and markets three dimensional (3D) graphics processors and related software. The company offers products that provides interactive 3D graphics to the mainstream personal computer market. This Underlying Stock trades on the Nasdaq Global Select Market under the symbol "NVDA." The company's CIK number is 0001045810.

The following graph shows the daily historical performance of NVDAon its primary exchange for the period from January 1, 2014through November 11, 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. On November 11, 2024, the Closing Market Price of NVDA was $145.26. The graph below may have been adjusted to reflect certain corporate actions such as stock splits and reverse stock splits.

Historical Performance of NVDA

This historical data on NVDAis not necessarily indicative of the future performance of NVDAor what the value of the notes may be. Any historical upward or downward trend in the price per share of NVDAduring any period set forth above is not an indication that the price per share of NVDA is more or less likely to increase or decrease at any time over the term of the notes.

Before investing in the notes, you should consult publicly available sources for the prices and trading pattern of NVDA.

Supplement to the Plan of Distribution; Conflicts of Interest

Under our distribution agreement with BofAS, BofAS will purchase the notes from us as principal at the public offering price indicated on the cover of this term sheet, less the indicated underwriting discount.

MLPF&S will purchase the notes from BofAS for resale, and will receive a selling concession in connection with the sale of the notes in an amount up to the full amount of underwriting discount set forth on the cover of this term sheet.

We will pay a fee to LFT Securities, LLC for providing certain electronic platform services with respect to this offering, which will reduce the economic terms of the notes to you. An affiliate of BofAS has an ownership interest in LFT Securities, LLC.

MLPF&S and BofAS, each a broker-dealer subsidiary of BAC, are members of the Financial Industry Regulatory Authority, Inc. ("FINRA") and will participate as selling agent in the case of BofAS, and as dealer, in the case of MLPF&S, in the distribution of the notes. Accordingly, offerings of the notes will conform to the requirements of Rule 5121 applicable to FINRA members. MLPF&S may not make sales in this offering to any of its discretionary accounts without the prior written approval of the account holder.

We may deliver the notes against payment therefor in New York, New York on a date that is greater than one business day following the pricing date. Under Rule 15c6-1 of the Securities Exchange Act of 1934, trades in the secondary market generally are required to settle in one business day, unless the parties to any such trade expressly agree otherwise. Accordingly, if the initial settlement of the notes occurs more than one business day from the pricing date, purchasers who wish to trade the notes more than one business day prior to the original issue date will be required to specify alternative settlement arrangements to prevent a failed settlement.

The notes will not be listed on any securities exchange. In the original offering of the notes, the notes will be sold in minimum investment amounts of 25,000 units. If you place an order to purchase the notes, you are consenting to MLPF&S and/or one of its affiliates acting as a principal in effecting the transaction for your account.

MLPF&S and BofAS may repurchase and resell the notes, with repurchases and resales being made at prices related to then-prevailing market prices or at negotiated prices, and these will include MLPF&S's and BofAS's trading commissions and mark-ups or mark-downs. MLPF&S and BofAS may act as principal or agent in these market-making transactions; however, neither is obligated to engage in any such transactions. At their discretion, for a short, undetermined initial period after the issuance of the notes, MLPF&S and BofAS may offer to buy the notes in the secondary market at a price that may exceed the initial estimated value of the notes. Any price offered by MLPF&S or BofAS for the notes will be based on then-prevailing market conditions and other considerations, including the performance of the Underlying Stocks and the remaining term of the notes. However, neither we nor any of our affiliates is obligated to purchase your notes at any price, or at any time, and we cannot assure you that we or any of our affiliates will purchase your notes at a price that equals or exceeds the initial estimated value of the notes.

The value of the notes shown on your account statement will be based on BofAS's estimate of the value of the notes if BofAS or another of our affiliates were to make a market in the notes, which it is not obligated to do. That estimate will be based upon the price that BofAS may pay for the notes in light of then-prevailing market conditions and other considerations, as mentioned above, and will include transaction costs. At certain times, this price may be higher than or lower than the initial estimated value of the notes.

Structuring the Notes

The notes are our debt securities, the return on which is linked to the performance of the Underlying Stocks. The related guarantees are BAC's obligations. As is the case for all of our and BAC's respective debt securities, including our market-linked notes, the economic terms of the notes reflect our and BAC's actual or perceived creditworthiness at the time of pricing. In addition, because market-linked notes result in increased operational, funding and liability management costs to us and BAC, BAC typically borrows the funds under these types of notes at a rate that is more favorable to BAC than the rate that it might pay for a conventional fixed or floating rate debt security. This rate, which we refer to in this term sheet as BAC's internal funding rate, is typically lower than the rate BAC would pay when it issues conventional fixed or floating rate debt securities. This generally relatively lower internal funding rate, which is reflected in the economic terms of the notes, along with the fees and charges associated with market-linked notes, typically results in the initial estimated value of the notes on the pricing date being less than their public offering price.

At maturity, if not previously automatically called, we are required to pay the Redemption Amount to holders of the notes, which will be calculated based on the performance of the Underlying Stocks and the $10 per unit principal amount. In order to meet these payment obligations, at the time we issue the notes, 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 by seeking bids from market participants, including MLPF&S, 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 Stocks, the tenor of the notes and the tenor of the hedging arrangements. The economic terms of the notes and their initial estimated value depend in part on the terms of these hedging arrangements. These hedging arrangements are expected to result in a profit to those engaging in the hedging activity, which could be more or less than initially expected, but could also result in a loss.

For further information, see "Risk Factors-Valuation and Market-related Risks" and "-Conflict-related Risks" beginning on page PS-15 and PS-17, respectively, and "Use of Proceeds" on page PS-24 of the accompanying product supplement.

Summary Tax Consequences

You should consider the U.S. federal income tax consequences of an investment in the notes, 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 notes, 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-45 of the accompanying product supplement.

Where You Can Find More Information

We and BAC have filed a registration statement (including a product supplement, a prospectus supplement, and a prospectus) with the SEC for the offering to which this term sheet relates. Before you invest, you should read the Note Prospectus, including this term sheet, and the other documents relating to this offering that we and BAC have filed with the SEC, for more complete information about us, BAC and this offering. You may get these documents without cost by visiting EDGAR on the SEC website at www.sec.gov. Alternatively, we, any agent, or any dealer participating in this offering will arrange to send you these documents if you so request by calling MLPF&S or BofAS toll-free at 1-800-294-1322.