2-1 Buydown Mortgage Guide: How Seller-Paid Rate Subsidies Work in 2026
What Is a 2-1 Temporary Interest Rate Buydown?
A 2-1 buydown is a financing arrangement where the note interest rate is temporarily reduced by 2.00% in Year 1 and by 1.00% in Year 2, before reverting to the full note rate in Year 3 through Year 30.
Unlike permanent discount points—which permanently lower the interest rate for the entire 30-year life of the loan—a temporary buydown is funded via an upfront cash subsidy held in an escrow custodial account and disbursed monthly to offset the borrower obligation.
Who Funds the Buydown Escrow Account?
In conventional, FHA, and VA transactions, the temporary buydown subsidy cannot be funded by the borrower themselves (as that would violate cash reserve rules). It must be provided through interested party contributions (IPCs), typically from:
- Homebuilders: Offering closing credits in new master-planned subdivisions to move finished inventory without dropping the recorded base price.
- Home Sellers: Providing concessions in balanced or buyer-favored housing markets rather than agreeing to a price cut.
- Mortgage Lenders: Absorbing costs through specialized promotional marketing programs.
Payment Schedule: $400,000 Loan with 6.50% Permanent Note Rate and 2-1 Buydown
| Loan Period | Effective Interest Rate | Monthly P&I Payment | Monthly Buyer Savings | Annual Total Savings |
|---|---|---|---|---|
| Year 1 (Month 1-12) | 4.50% (-2.00%) | $2,026.74 | $501.59/mo | $6,019.08 |
| Year 2 (Month 13-24) | 5.50% (-1.00%) | $2,271.16 | $257.17/mo | $3,086.04 |
| Years 3-30 (Permanent) | 6.50% (Full Note Rate) | $2,528.33 | $0.00/mo | $0.00 |
| Total 2-Year Subsidy | Held in Escrow Account | - | - | $9,105.12 Total Cost |
Frequently Asked Questions
Do buyers qualify for the mortgage at the lower introductory rate or the full note rate?
Under Fannie Mae, Freddie Mac, and FHA guidelines, borrowers must qualify for underwriting approval at the full, permanent note rate (in this example, 6.50%), ensuring you can comfortably afford the payment once the introductory subsidy expires in Year 3.
What happens to unused buydown funds if you refinance or sell in Year 1 or 2?
If you refinance or sell the property before the 24 months conclude, any remaining cash balance in the buydown escrow account is credited directly toward your outstanding loan principal balance.