Buydown
Definition
A buydown is an arrangement that lowers a borrower’s early mortgage payments in exchange for money paid up front. A temporary buydown lasts only for a stated early period; it does not rewrite the note rate by itself.
In plain English
Someone—often a seller, builder, or borrower—pays money at the start so the monthly payment is lower for a limited time. After that period, the payment follows the loan’s lasting terms. A 2-1 buydown is one common temporary pattern, not a second product. Paying discount points to change the lasting rate is related but not this page’s only meaning. This page does not say a buydown is a bargain.
Technical definition
CFPB describes a temporary buydown as a lower payment for a limited time in exchange for an up-front fee or a higher rate later. That consumer meaning is the PRIMARY evidence. Year-by-year structures are examples, not the definition.
Why it matters
Payment-change questions often come from an expired buydown, not from an adjustable-rate reset.
Example
A seller funds a temporary buydown at closing. Casey’s first-year payment is lower than the lasting principal-and-interest amount. When the buydown ends, the payment rises to the amount the note requires.
Commonly confused with
Sources reviewed
Why did my monthly mortgage payment go up or change?
ObservedSeptember 6, 2026
Important note
A buydown is not automatically discount points, and a 2-1 structure is not a second product.