Mortgage Rate Buydowns: A Powerful Tool When Used Correctly

Permanent discount points

Discount points are an upfront cost, usually expressed as a percentage of the loan amount, paid to reduce the note rate for the entire term. The Consumer Financial Protection Bureau explains the tradeoff: you pay more at closing and, if the rate is actually reduced, you pay less each month. One point equals one percent of the loan amount, but you can pay a fraction of a point. The amount of rate reduction you receive for those points is set by the lender and the market that day. There is no universal “1 point equals 0.25%” rule.

By law, points that are connected to a discounted interest rate are listed on page 2, Section A of the Loan Estimate and the Closing Disclosure. Lender credits work in the other direction: a higher rate in exchange for a credit toward closing costs, shown as a negative number in Section J. Ask the lender to show the same loan with and without points so the buyer can see the cash-today versus payment-over-time tradeoff. Break-even months, ignoring the time value of money, are the points cost divided by the monthly principal-and-interest savings. A shorter expected hold period can make points less useful even when the payment looks attractive.

Temporary 2-1 buydowns

A temporary buydown does not change the note. The borrower still owes the full note-rate payment. For a typical 2-1, the first-year principal-and-interest payment is calculated as if the rate were two percentage points below the note rate, the second-year payment as if it were one point below, and from year three onward the borrower pays the full note-rate amount. The difference each month is drawn from a buydown account funded at closing.

That step-up is the feature Realtors should show first, not last. The year-three payment is the payment the file was underwritten to, where program rules require qualification at the note rate.

Temporary 3-2-1 buydowns, when they are available

A 3-2-1 follows the same idea with an extra year: three points below the note rate in year one, two in year two, one in year three, and the full note-rate payment from year four on. Many programs, lenders, and investors restrict them. Here is what the current primary sources actually say:

• Fannie Mae (Selling Guide B2-1.4-04, 08/07/2024, still listed in the Guide published November 4, 2026): temporary buydowns are allowed on fixed-rate mortgages and certain ARM plans for principal residences or second homes, provided the rate reduction does not exceed 3% and the rate increase will not exceed 1% per year. The buydown period may not be greater than three years. The Guide lists a 3-2-1 as an example of a “significant” temporary buydown and notes MBS pooling limits for significant buydowns. Investment properties and cash-out refinances are ineligible. ARMs are restricted.
• Freddie Mac (Seller/Servicer Guide 4204.3 — not 4204.2, which covers Affordable Seconds): a Limited Buydown starts no more than two points below the note rate and lasts no more than two years. An Extended Buydown may start more than two, but not more than three, points below the note rate and may last more than two years, but not more than three. Increases may not exceed one percentage point annually. For fixed-rate mortgages, the borrower must be qualified using payments calculated at the note rate. Cash-out refinances and investment-property mortgages are among the ineligible categories on Freddie Mac’s public product summary.
• VA (Lender’s Handbook, Chapter 7, Topic 7, and VA’s temporary-buydown consumer page): temporary buydowns may be used only with fixed-rate VA loans. Common frameworks include 3-2-1 and 2-1. The plan must run at least one year and not more than three. Annual payment increases may not correspond to more than a one-percentage-point rise in the effective rate. VA’s consumer page states that temporary buydowns can be applied to purchase loans, cash-out refinances, and interest-rate-reduction refinancing loans (IRRRLs) when they otherwise meet VA requirements.
• FHA (HUD Handbook 4000.1): the mortgagee must use the note rate when calculating principal and interest for a loan with a temporary interest rate buydown. Temporary buydowns are not permitted with refinance transactions or with ARM transactions. The handbook sections reviewed for this page set escrow and qualification rules; they do not spell out a 2-1 or 3-2-1 schedule. Do not assume every FHA lender will offer a 3-2-1.
• USDA (HB-1-3555, Chapter 11, paragraph 11.5): the loan must be underwritten at the full note rate. The buydown must not reduce the interest rate more than two percent below the full note rate, and the assistance may increase no more than one percent annually. A 3-2-1 starts three points below the note rate and would not fit that two-percent cap. A 2-1 or 1-0 may fit if the other paragraph 11.5 requirements are met.

Ease Mortgage and other lenders may apply overlays on top of these agency rules. Ask Shane what is available on your buyer’s scenario.

Seller-funded buydown considerations

When a seller, builder, or other interested party funds points or a temporary subsidy, the amount generally counts toward that program’s interested-party contribution limits. Fannie Mae B2-1.4-04 says interested-party contribution limits in B3-4.1-02 apply. VA treats a seller- or builder-funded temporary buydown as a seller concession subject to the 4% cap of reasonable value. The credit must be written into the purchase agreement or an amendment and shown on the Closing Disclosure. It cannot quietly appear later.

Who may fund the account depends on the program. Fannie Mae addresses both interested-party funds and lender-funded buydowns (which must travel with a transfer of servicing). VA says the seller, lender, builder, or Veteran may fund a temporary buydown; lenders may not create one by charging an above-market rate. USDA allows the seller, lender, or another third party and does not allow the borrower to fund the temporary buydown. See the seller concessions vs. price reductions guide for the conventional, FHA, VA, and USDA caps and a comparison with a price cut.

How the monthly payment changes

On a temporary plan, the buyer’s principal-and-interest payment is lower in the subsidy years and then returns to the full note-rate payment. Taxes, insurance, and mortgage insurance, when they apply, are separate and can change for other reasons. On a permanent buydown, the note-rate payment itself is lower for the life of the loan, provided the points actually purchased a rate reduction at that lender that day.

The calculator below shows year-by-year principal and interest and highlights the first year at the full note-rate payment (year 3 of a 2-1; year 4 of a 3-2-1). That highlighted number is the one to walk through with the buyer.

Temporary buydown funding mechanics

The subsidy is calculated from the monthly differences between the full note-rate principal-and-interest payment and the temporary payment for each year of the plan, and the total is deposited at closing into a buydown account or escrow held by the servicer or an escrow agent. Each month, funds are drawn to make up the difference. The note itself still calls for the full payment. If the subsidy is not available for any reason, the borrower remains responsible for the full amount due under the note (Fannie Mae B2-1.4-04; HUD 4000.1; VA Chapter 7, Topic 7).

If the loan is refinanced, paid off, assumed, or foreclosed before the account is empty, leftover funds are not a gift to keep in cash. Agency text differs:

• Fannie Mae: if the mortgage is paid in full, remaining funds should be credited to the payoff, or they may be returned to the borrower or to the lender (if the lender funded the buydown), as the buydown agreement specifies. If the loan is foreclosed, the funds are used to reduce the mortgage debt. If the loan is assumed, the funds may continue to reduce payments under the original plan. Buydown funds cannot be used to pay past-due payments or to reduce the mortgage amount for LTV.
• VA: remaining funds must be credited against the Veteran’s indebtedness if the loan is paid off, foreclosed, or resolved through a short sale or deed in lieu. They may not revert to the party that established the escrow. If the loan is assumed, remaining funds continue to be applied to the payments in the agreement.
• FHA: HUD 4000.1 says the escrow agreement must not permit reversion of undistributed funds to the provider if the property is sold or the mortgage is prepaid in full, and must not allow unexpended funds to be provided to the borrower in cash unless the borrower funded the escrow.
• USDA: paragraph 11.5 requires a fully funded escrow and a written agreement. The text reviewed for this page does not specify how unused funds are applied if the loan is paid off early. Confirm the escrow agreement and the lender’s practice.

Borrower qualification requirements

For conventional loans, Fannie Mae requires qualification based on the note rate without consideration of the bought-down rate (B2-1.4-04; B3-6-04). Freddie Mac Guide 4204.3 requires the same for fixed-rate mortgages (ARMs follow Freddie’s ARM qualifying section). HUD 4000.1 requires the mortgagee to use the note rate. USDA HB-1-3555 paragraph 11.5 requires the loan to be underwritten at the full note rate, with both the note rate and the initial buydown rate entered in GUS.

VA is often described as “different.” The exact text is narrower than a rumor that VA qualifies at the bought-down rate. Chapter 7, Topic 7, and VA’s consumer page require the lender to determine that the Veteran can afford the full payment under the note, without considering the monthly buydown contributions. The buydown may be treated as a compensating factor for residual income or debt-to-income when those calculations are marginal. It is not a substitute for showing the Veteran can carry the note payment.

Break-even periods for permanent points

A simple break-even, in months, is the points cost divided by the monthly principal-and-interest savings. That formula ignores the time value of money, tax treatment, and changes in insurance or escrow items. The calculator also totals principal-and-interest payments over a hold period you enter, with and without the points cost, so you can compare a shorter hold with a longer one. Temporary subsidies do not keep saving money after the buydown years end; the payment returns to the note-rate amount.

Refinancing uncertainty

Rates may be higher or lower later than the example on this page. A refinance is a new loan. It requires qualifying again, paying closing costs, and having sufficient equity or an eligible program. It is not a certainty, and this page does not treat a later refinance as part of the plan. If a 2-1 or 3-2-1 only works on the assumption that the buyer will refinance before the payment steps up, the structure is not being used correctly. Show the full note-rate payment and qualify the conversation to that number.

Program limitations and lender restrictions

Beyond the agency caps already cited, common restrictions include investment property, cash-out refinances, and some ARM plans (Fannie and Freddie). FHA does not permit temporary buydowns on refinances or ARMs. USDA limits the rate reduction to two percent and does not allow the borrower to fund the temporary account. Lenders add overlays: occupancy, loan-to-value, product type, and whether a 3-2-1 is offered at all. Availability at Ease Mortgage also varies by scenario, investor, and day. Ask Shane what is available on your buyer’s scenario.

Compare payment schedules, upfront cost, and illustrative totals

Enter a hypothetical loan amount, note rate, term, and — for a permanent buydown — the points cost and rate reduction from the lender’s actual pricing. All defaults are illustrative. Nothing you enter is sent over the network. This is not a quote, a rate lock, an approval, or a recommendation of which structure to use.

Illustrative; not a quote, rate lock, or approval. Buyer qualifies at the note rate where program rules require. We cannot predict future rates, and a later refinance is not a certainty.

Temporary payments are computed as principal and interest on the original loan amount and term at the temporary effective rate. The note itself is not changed; the subsidy makes up the difference to the full note-rate payment, and the loan amortizes on the note-rate schedule. Mortgage insurance, taxes, and insurance are not included.

Illustrative talking points Realtors can use

The figures below use the same defaults as the tool: a $320,000 loan, a 6.5% note rate (example only, not a quote), and a 30-year term. Recast them. They are not a recommendation.

Plain-language explanation scripts

For the buyer

“This loan has a note rate of [rate]. That is the rate on the promissory note, and it is the payment the lender uses to qualify you where the program requires it. A temporary 2-1 sets aside money at closing so your principal-and-interest payment is lower in year one and year two. In year three it returns to the full payment of [full P&I]. That money in the buydown account does not change the note. If you pay the loan off early, leftover funds are handled under the agency rules and the written agreement — they are not extra cash to take home. We are not predicting where rates will be later, and a refinance later would be a new loan, with new costs and a new qualification. It is not something we can treat as a certainty.”

For the seller or listing agent

“You can offer a credit toward eligible financing costs, including, when the program allows it, discount points or a temporary buydown subsidy. The credit has to be in the purchase agreement, it counts toward interested-party limits, and it cannot be more than the actual eligible cost. A 2-1 on this example loan costs about [subsidy] to fund. A price cut of the same dollars would change the contract price and may change comps. We can run both, including on the seller-concessions tool. We will not tell the buyer that payments stay low or that they will refinance before the step-up.”

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