Seller-Paid Rate Buydowns in Miami: What the Subsidy Costs and What It Buys

Last updated: August 2026

A seller-paid rate buydown is a concession in which the seller deposits a lump sum at closing into an escrow account that subsidizes the buyer's interest for the first one to three years. The buyer's note rate never changes. The subsidy covers part of the interest early on, so the buyer's out-of-pocket payment starts lower and steps up on a fixed schedule until it reaches the full note payment.

For a seller, three questions decide whether this is the right concession. What does the subsidy actually cost. Does it fit inside the contribution cap the buyer's loan program allows. And is the buyer pool for this property financed or cash. This article works through the estimating math, the caps and structural limits set by agency guidelines, the qualifying rule that determines whether a buydown widens your buyer pool, and how a buydown compares with a straight price reduction.

Mortgage rates move every week, so this article does not quote one. Check Freddie Mac's Primary Mortgage Market Survey [1] for the current average, and get the exact subsidy figure from the buyer's lender. Nothing here is a quote, an offer, or a rate you can rely on. This is general information, not legal, tax, or financial advice.

Estimating the subsidy without a rate sheet

You do not need a lender worksheet to know roughly what a buydown will cost you. The arithmetic is simple enough to run in a listing appointment.

In a 2-1 buydown, the buyer's effective rate sits two percentage points below the note rate in year one and one percentage point below in year two, then reverts to the note rate permanently. Interest in any year is approximately the rate multiplied by the outstanding balance. So the subsidy needed to cover a 2-1 structure is roughly two percent of the loan balance in year one plus one percent in year two, or about three percent of the loan amount in total. A 3-2-1 structure runs closer to six percent.

The true figure lands slightly under those estimates, because the balance amortizes over the period and because the monthly difference is computed on amortizing payments rather than on raw interest. Treat three percent of the loan as a planning number for a 2-1, then ask the buyer's lender for the buydown worksheet before you commit to anything in writing.

That estimate is the useful part, because it lets you compare the concession against a price reduction in the same units. On a financed purchase, a 2-1 buydown costs you approximately what a three percent price cut costs you. The two are not equivalent in what they buy, which is the rest of this article.

The cap your concession has to fit inside

Money that a seller, builder, or agent contributes toward a buyer's costs is an interested party contribution, and Fannie Mae caps it as a percentage of the property value based on occupancy and loan-to-value [2]:

Principal residence or second home, LTV above 90 percent: 3 percent
Principal residence or second home, LTV 75.01 to 90 percent: 6 percent
Principal residence or second home, LTV 75 percent or less: 9 percent
Investment property, all CLTV ratios: 2 percent

A buydown subsidy funded by an interested party counts inside that cap [2]. It does not sit alongside it. That single fact reshapes most concession negotiations, because a 2-1 buydown costing roughly three percent of the loan consumes the entire allowance for a buyer putting less than ten percent down. There is nothing left for closing costs, prepaid items, or an HOA credit. If the buyer needs help with closing costs as well, the buydown has to shrink or the structure has to change.

The failure mode is worth stating plainly. When contributions exceed the limit, the excess is treated as a sales concession and must be deducted from the property's sales price, with the loan-to-value ratios recalculated on the reduced figure [2]. A concession you offered in good faith can therefore lower the value the loan is underwritten against and put the financing at risk late in the deal. Confirm the cap with the buyer's lender before the concession goes into the contract, not after.

Structural limits on the buydown itself

Agency guidelines constrain the shape of a temporary buydown, not just its cost [3]. The rate reduction may not exceed three percentage points, the rate may not increase by more than one percentage point per year, and the buydown period may not exceed three years. Temporary buydowns are permitted on principal residences and second homes.

Two mechanical requirements matter at closing. The funds must be placed in a custodial account and fully funded by the time the loan is delivered [3]. And the mortgage instruments must reflect the permanent payment terms rather than the buydown schedule, because the buydown plan cannot change the terms of the note [3]. The buyer is legally obligated to the full note payment from day one. The subsidy is a separate pot of money that pays part of it for a while.

A buydown will not rescue a buyer who cannot qualify

This is the point sellers most often get wrong, and it should change how you use the tool.

When a loan carries a temporary buydown, the lender must qualify the borrower on the note rate, without consideration of the bought-down rate [3]. The buyer's approved loan amount is exactly what it would have been with no buydown at all.

So a buydown does not bring new buyers into your price band. It does not expand anyone's borrowing capacity. What it does is make an already-qualified buyer more comfortable signing, by softening the first two years of carry. If your listing is sitting because the buyers touring it cannot qualify at your asking price, a buydown will not solve that. A price reduction will. If your listing is sitting because qualified buyers are hesitating over monthly carry, a buydown addresses the actual objection.

Diagnose which problem you have before you choose the concession. The two look identical from the outside and respond to opposite remedies.

Buydown or price cut

Once you know the buyer is qualified, the comparison comes down to four things.

Who it reaches. A price cut is worth the same to every buyer. A buydown is worth nothing to a cash buyer. In a Miami market where cash purchases are a meaningful share of activity, particularly in condos, that narrows the audience for a buydown considerably. If your likely buyer is paying cash, the concession is dead weight.

What it does to your comp. A price cut lowers the recorded sale price, which becomes the comparable for your neighbors and lowers the buyer's basis and assessed value. A buydown preserves the headline price. Sellers who own other property nearby, or who care how the sale prints, tend to weigh this more heavily than the dollars.

When the value lands. A buydown concentrates its benefit in years one and two. A buyer who expects to refinance may discount that heavily, since unused subsidy is generally credited if the loan pays off early but the plan was never worth much to them. A buyer planning to hold may value permanent points more.

Whether it fits. Run the cap check from the previous section first. A price cut has no cap. A buydown does.

Putting it in the deal

Structure the concession as a contribution toward the buyer's closing costs and prepaid items, which is where a buydown subsidy sits. Under the practice changes in effect since 2024, a seller concession may be published in the MLS, but it cannot be conditioned on, or communicate, compensation to the buyer's broker [4]. Keep the two separate in the listing and in the contract.

Ask a Florida real estate attorney to draft or review any concession addendum, and have the buyer's lender confirm the structure in writing before signing. The cap math, the escrow mechanics, and the contract language each sit with a different professional, and a concession that works in one of those three places can still fail in another.

If you are deciding between a buydown and a price adjustment on a specific property, that decision depends on your buyer pool, your equity position, and your timeline. A current home valuation establishes the room you actually have, and the seller process page covers how we structure terms alongside price. Buyers weighing the other side of the same math can start with a buyer consultation.

Frequently asked questions

How much does a 2-1 buydown cost a seller?

As a planning estimate, roughly three percent of the loan amount, since the subsidy covers about two percent of the balance in year one and one percent in year two. A 3-2-1 structure runs closer to six percent. Ask the buyer's lender for the buydown worksheet for the exact figure before you commit.

Does a seller-paid buydown help the buyer qualify for a larger loan?

No. The lender must qualify the borrower at the full note rate, without consideration of the bought-down rate [3]. The buydown lowers early payments only. It does not expand borrowing capacity or widen the pool of buyers who can afford your price.

Can I offer a buydown on an investment condo?

Temporary buydowns under these guidelines are permitted on principal residences and second homes [3]. Investment properties are also held to a 2 percent interested party contribution cap across all CLTV ratios [2], which is below the cost of a typical 2-1 structure. Confirm what the specific loan program allows with the buyer's lender.

What happens if the concession exceeds the contribution cap?

The excess is treated as a sales concession and deducted from the property's sales price, and the loan-to-value ratios are recalculated using the reduced amount [2]. That can change the financing terms the deal was built on, so check the cap before the concession goes into the contract.

Is a buydown better than cutting the price?

Neither is better in the abstract. A price cut reaches every buyer including cash buyers and lowers the recorded comp. A buydown preserves the headline price but only benefits a financed buyer, and it must fit inside the contribution cap. Choose based on whether your stalled listing has a qualifying problem or a monthly-carry problem.

Gabriel

Sources

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Gabriel A. Moyers, PA. eXp Realty. Florida License #3407280. Equal Housing Opportunity. This article is general information as of August 2026 and is not legal, tax, or financial advice. Figures shown are illustrative arithmetic, not a quote, an offer, or an available rate. Verify current figures with a licensed lender and authoritative sources before acting.