What is a temporary buy down anyway?
A mortgage temporary buydown is a financing arrangement that lowers the borrower’s interest rate (and monthly payment) for a limited initial period of the loan. The reduced rate is paid for by an upfront fund—usually from the seller, builder, or sometimes the borrower or lender—rather than being paid monthly by the borrower.
Key points
- Duration: Temporary buydowns typically last 1–3 years (common structures: 2/1, 3/2/1, or 1-0). A 2/1 means the rate is reduced by 2 percentage points in year 1, 1 point in year 2, then reverts to the note rate in year 3 onward.
- Who funds it: The buydown fund is deposited with the lender at closing and is used to subsidize the borrower’s mortgage interest during the buydown period.
- Effect: Lowers early monthly payments, easing cash flow at the start of homeownership, but the loan’s principal and final interest rate are unchanged after the buydown period.
- Cost: The cost equals the present value of the interest subsidy and is negotiated into the purchase (seller concessions), builder incentives, or paid by the buyer. It may affect seller net or home price.
- Not the same as a rate buy (permanent buy-down): A temporary buydown only reduces rate for a set period; a permanent buydown lowers the rate for the entire loan term and is usually paid via discount points.
When it’s useful
- Buyers expect rising income or want lower initial payments.
- Competitive market where sellers/builders offer incentives.
- Buyers who plan to sell/ refinance before the subsidized period ends.
Considerations
- After the buydown ends, payments jump to full level—ensure you can afford that.
- May affect loan qualification if the lender uses the higher future payment for debt-to-income calculations (rules vary).
- Compare the subsidy cost to other options (price negotiation, lower rate via points, ARM, or a different loan product).
