The 2/1 Buy Down Mortgage allows the borrower to qualify at below market rates so they can borrow more. The initial starting interest rate increases by 1% at the end of the first year and adjusts again by another 1% at the end of the second year. It then remains at a fixed interest rate for the remainder of the loan term. Borrowers often refinance at the end of the second year to obtain a better long term rate; however, even keeping the loan in place for three full years or more will keep their average interest rate in line with the original market conditions.

Provision in a mortgage that allows the lender to demand payment of the entire principal balance if a monthly payment is missed or some other default occurs.

A way to reduce the remaining balance on the loan by paying more than the scheduled principal amount due.

A mortgage with an interest rate that changes during the life of the loan according to movements in an index rate. Sometimes called AMLs (adjustable mortgage loans) or VRMs (variable-rate mortgages).