Principal payments over and above the minimum monthly amount required by the terms of the mortgage constitute partial prepayment of a mortgage. Each mortgage will have terms describing how and when prepayment may occur. Refer to the note to see if there is any penalty incurred for prepayment.

The total savings potential also depends on how long you want to stay in the house. Borrowers who plan to move in the near future should not expect to realize as significant a savings as people who pay ahead of schedule until they own the home free and clear.