STRATEGY PAPER

Rate Buydowns vs Price Cuts: The Math Builders Don’t Show

A teaser rate is not a discount.
Last reviewed March 2026 · DwellQ Research5 SOURCES

Key Findings

01A 2-1 buydown is an escrow subsidy on a fixed-rate loan — not an ARM
02The buydown’s cost equals the sum of the payment differences it covers
03Builders prefer buydowns because they protect neighborhood comps; price cuts don’t
04Same money as a price cut: smaller savings, but permanent, plus lower principal
05Short horizons (refi/sell in ~5–6 yrs) favor buydowns; long stays favor price cuts
06Budget on the year-3 payment — the jump is several hundred dollars a month

How a 2-1 Buydown Actually Works

A 2-1 buydown gives you a rate 2 points below your note rate in year one and 1 point below in year two — then the full rate from year three on. Crucially, it is not an ARM: your loan’s rate is fixed the entire time. The teaser years are a subsidy — someone (usually a builder or seller) deposits the exact sum of the payment differences into an escrow account, and that account tops up your payments until it runs out. You qualify for the loan at the full note rate, because that’s the payment you’ll actually owe from year three forward.

Why Builders Love Buydowns (and It’s Not Generosity)

Builders push buydowns instead of price cuts for a reason that has nothing to do with your finances: comps. A $12K buydown credit keeps the recorded sale price at full ask, protecting appraised values across the rest of the development. A $12K price reduction lowers the comp for every future sale in the neighborhood. The incentive structure means the buydown is often the only offer on the table — but the same dollars, redirected, are usually available if you ask, and the flyer will never show you the comparison.

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The Same-Money Comparison

Take the identical credit and apply it as a price reduction: your loan shrinks, your payment drops — modestly, but permanently — and you owe less on the house from day one. The buydown concentrates a larger benefit into one or two years; the price cut spreads a smaller benefit over thirty. The crossover depends on your horizon: buyers who will refinance or sell within roughly 5–6 years usually do better with the buydown; buyers staying long-term usually do better with the price cut. One consolation if plans change: unused buydown escrow is credited against your principal when you refinance or sell.

Points, Break-Evens, and Payment Shock

Permanent discount points are the third use of the same money: ~1% of the loan buys roughly a 0.25% rate reduction, forever. Points break even in 5–7 years of payments — sell or refinance sooner and they were a loss. Whatever structure you choose, budget on the full note-rate payment, not the teaser: the year-three jump on a typical 2-1 buydown is several hundred dollars a month, and payment shock — not the rate itself — is how buydowns hurt people. Lenders qualify you at the note rate precisely because they’ve seen that movie.

THE BOTTOM LINE
A buydown is real money — but it’s the builder’s preferred way to give it to you, not necessarily yours. Run the same dollars as a price cut before you sign.

Frequently Asked Questions

Is a 2-1 buydown the same as an ARM?+
No. An ARM’s actual rate changes with the market after the fixed period. A buydown’s loan rate is fixed the whole time — the low early payments come from an escrow subsidy that runs out on schedule. There’s no uncertainty, but the jump is guaranteed.
What happens to buydown money if I refinance early?+
The unused escrow balance is typically applied to your loan principal at payoff. You don’t lose it — but you captured less benefit than the headline suggested, which is worth knowing before you pay for a buydown yourself.
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RELATED ANALYSIS
How Interest Rates Move Your Break-EvenWhen Refinancing Actually Improves Net WorthWhy Most Rent vs Buy Calculators Get It Wrong
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METHODOLOGY
DwellQ research uses a net worth comparison framework. Both paths—buying (building equity minus all ownership costs) and renting (investing the down payment plus monthly surplus)—are modeled month-by-month over the full holding period. Assumptions are documented, sensitivity-tested, and sourced from publicly available data. This is scenario analysis, not financial advice.
SOURCES & REFERENCES
  1. Consumer Financial Protection Bureau. Temporary Buydown Disclosures and Qualification Rules.[consumerfinance.gov]
  2. Freddie Mac. Temporary Subsidy Buydown Plans — Seller/Servicer Guide.[freddiemac.com]
  3. Fannie Mae. Selling Guide B2-1.4: Temporary Interest Rate Buydowns.[fanniemae.com]
  4. National Association of Home Builders. Builder Sales Incentives Surveys.[nahb.org]
  5. Freddie Mac. Primary Mortgage Market Survey — Points and Fees Data.[freddiemac.com]