Mortgage Calculator Principal Loan Balance Annual Interest Rate (%) Amortization Length Years Starting: Month =JanFebMarAprMayJunJulAugSepOctNovDecYear = Show full amortization table?NoYes Monthly Principal Prepayment Amount (optional) Annual Principal Prepayment Amount (optional) One-Time Prepayment Amount, to be paid before payment (month #) (optional) Display UsingHTML 3.0 TablesPlain Text Centennial Mortgage Corp. 312 Wall St., Kingston, NY 12401 1-800-972-7759