Citi recently launched a program that allows borrowers to use their savings account to earn rewards which are paid against their mortgage balance. Citi said its Offset Mortgage will allow borrowers to pay off their loan more quickly. The program is available in the New York tri-state area. Borrowers must have a savings account with Citi and an automatic monthly debit for the mortgage payment from a Citibank checking account to participate. Citi said a borrower with a loan amount of ... [Includes four briefs]