what does a 3 2 1 buydown mortgage cost 
the cost of a 3 2 1 buydown mortgage is the total amount that the buyer saves over the three year period of lower rates who pays for a 3 2 1 buydown mortgage usually the seller homebuilder or lender pays the cost of a buydown mortgage employers will sometimes pay for a buydown if they are relocating an employee to another area and want to ease the financial burden sometimes the buyer borrower may pay it 