A 2-1 buydown on a $300,000 mortgage at a 7% note rate costs roughly $7,000, funded as a lump sum at or before closing. The exact 2-1 buydown cost tracks two things: your loan amount and your note rate. It equals the total dollar difference between what you would pay at the full rate over the first two years and what you actually pay at the reduced rates during that stretch. In most deals, the seller or builder covers it as a concession.
How the Cost Is Calculated
The structure is simple. Your interest rate drops two percentage points in year one, one point in year two, then rises to the full note rate for the remaining life of the loan. Someone has to deposit the equivalent of your monthly savings into an escrow account upfront so the lender receives full interest every month. That deposit is the cost.
Take a $300,000 loan with a 7% fixed note rate on a 30-year term. In year one, your effective rate is 5%, which drops the monthly principal-and-interest payment from about $1,996 to roughly $1,611. That’s approximately $385 per month in savings, or about $4,620 over twelve payments. In year two, the rate moves to 6% and your payment rises to about $1,799. The monthly savings compared to the full 7% rate shrinks to roughly $197, adding another $2,367 for the year. Add both years and the total comes to approximately $6,987.1Department of Veterans Affairs. Temporary Buydowns – VA Home Loans
Those funds sit in an escrow account managed by the lender. Each month during the buydown period, the servicer pulls from that account to supplement your reduced payment. By year three, the escrow is empty and you pay the full note rate on your own.
What Changes the Number
Two variables move the price more than anything else: the loan amount and the note rate. A larger loan means higher monthly interest in dollar terms, which widens the gap between the reduced payment and the full one. On a $500,000 loan at the same 7% rate, that same 2-1 structure would run closer to $11,600.
The note rate matters because each percentage point of reduction is worth more in dollars when rates are higher. A two-point drop from 8% to 6% produces bigger monthly savings than a drop from 5% to 3%, even on an identical balance. Buydowns become more expensive in high-rate environments, which is exactly when buyers tend to want them most.
Loan term plays a smaller role. Most buydowns are structured on 30-year mortgages. On a 15-year loan, the base payment is already higher due to faster amortization, and the interest portion of each payment differs slightly, so the overall buydown cost is modestly lower because less of each payment goes toward interest.
Who Pays for the Buydown
In practice, the seller or homebuilder almost always funds it. It’s a sales incentive, especially common in slow markets or new construction where builders want to move inventory. The buyer gets lower payments for two years, and the seller gets a completed transaction. These payments are classified as seller concessions, and every major loan program caps how much a seller can contribute.
Conventional Loans (Fannie Mae and Freddie Mac)
Fannie Mae ties the maximum seller contribution to your down payment size. For a primary residence:
- Down payment under 10% (LTV above 90%): seller concessions capped at 3% of the purchase price
- Down payment of 10% to 24.99% (LTV of 75.01%–90%): capped at 6%
- Down payment of 25% or more (LTV of 75% or less): capped at 9%
On a $400,000 home with 5% down, the seller could contribute a maximum of $12,000 in concessions. A 2-1 buydown on that loan might cost around $9,300, leaving room for the seller to also cover some closing costs. With a smaller purchase price or a larger buydown cost, that 3% cap gets tight fast. Buyers putting less than 10% down need to watch it carefully.2Fannie Mae. Interested Party Contributions (IPCs)
FHA Loans
FHA loans allow seller concessions of up to 6% of the sale price or appraised value, whichever is lower. Since FHA buyers typically put down 3.5%, this is considerably more generous than the conventional 3% cap at comparable down payment levels. The buydown cost, closing cost credits, and any other seller-paid items all count toward that 6% limit.
VA Loans
VA loans cap seller concessions at 4% of the home’s reasonable value as determined by the VA appraisal. Temporary buydown escrow funds count toward that 4% cap. Since VA loans allow zero down payment, the concession limit is tighter in percentage terms than some buyers expect.
When the Buyer Pays
Nothing prevents you from funding your own buydown. This makes sense when the seller won’t negotiate concessions or when you’ve already maxed out the seller contribution limit. The cost comes out of your pocket at closing, separate from your down payment and other closing costs. These funds also reduce your cash reserves, which the lender evaluates during underwriting.
You Still Qualify at the Full Rate
The lower payments during years one and two don’t help you qualify for a bigger loan. Fannie Mae requires lenders to underwrite you at the full note rate, ignoring the temporary reduction entirely.3Fannie Mae. Temporary Interest Rate Buydowns If you can’t afford the payment at 7%, a 2-1 buydown to 5% won’t get you approved. If your debt-to-income ratio is borderline, the buydown won’t push you over the line. It’s a payment-reduction tool, not a qualification tool.
Is the Cost Worth It Compared to Discount Points?
Buyers sometimes confuse a 2-1 buydown with buying discount points, but the products are different. Discount points permanently lower your interest rate for the entire loan term. One point typically costs 1% of the loan amount and reduces the rate by roughly 0.25%, though the exact reduction varies by lender and market. On a $300,000 loan, one point costs $3,000 and might drop your rate from 7% to about 6.75% for all 30 years.
A 2-1 buydown costs more upfront (around $7,000 on that same loan) but delivers bigger monthly savings during the first two years. After that, the savings disappear. Discount points cost less upfront but take several years to break even through accumulated monthly savings, usually somewhere between three and seven years.
The choice comes down to how long you plan to keep the loan. If you expect to sell or refinance within a few years, a buydown delivers more value in the short term. If you’re staying put for a decade or more and rates aren’t likely to drop enough to trigger a refinance, permanent points generate more total savings over the loan’s life. A buydown makes the most sense when rates are elevated and widely expected to fall, or when your income is set to rise within a couple of years so the full payment lands on a bigger paycheck.
What Happens to Unused Funds If You Sell or Refinance
If you sell the home or refinance before the two-year buydown period ends, leftover funds in the escrow account don’t vanish. Under Fannie Mae guidelines, remaining buydown funds are credited toward the total payoff amount when the mortgage is paid in full.3Fannie Mae. Temporary Interest Rate Buydowns The unused balance reduces what you owe at payoff.
The buydown agreement itself may specify alternative handling. Some agreements allow unused funds to be returned to the borrower or to the lender if it funded the buydown. For VA loans, any remaining funds in the temporary buydown account must be applied to the outstanding debt if the loan is paid off, foreclosed, or resolved through a short sale.1Department of Veterans Affairs. Temporary Buydowns – VA Home Loans
One limitation worth knowing: buydown funds cannot be used to reduce the mortgage balance for purposes of calculating your loan-to-value ratio. The LTV is locked in at origination based on the actual loan amount, regardless of what’s sitting in the buydown escrow.3Fannie Mae. Temporary Interest Rate Buydowns