Loan Repayment with Extra Payments

Every extra dollar you pay above your regular monthly payment goes directly toward reducing your principal balance. A lower principal means less interest accrues each month, which means more of your future payments go to principal — creating a compounding acceleration that shortens your payoff date significantly.

Both strategies save interest, but a lump-sum payment applied early has an immediate impact on your principal and starts saving interest right away. Regular extra monthly payments are often more manageable for most borrowers. The best approach depends on your cash flow and financial goals — this calculator lets you model both.

Not always. Some lenders apply overpayments to future scheduled payments rather than directly to your principal. You should explicitly instruct your lender (in writing or online) to apply any extra payment to the principal balance only, so you actually reduce the loan term.

Some loans — particularly certain mortgages and auto loans — include prepayment penalty clauses that charge a fee if you pay off the loan early or make large extra payments. Review your loan agreement or ask your lender before making significant extra payments to ensure the interest savings outweigh any penalties.

On a $300,000 mortgage at 6.5% interest, paying an extra $200 per month can save over $80,000 in total interest and cut roughly 5–7 years off your loan term. The exact amount depends on your remaining balance, rate, and when you start making extra payments — use this calculator to get your personalized numbers.

Absolutely. The higher your interest rate, the more impactful extra payments become, because more of each regular payment goes to interest rather than principal. Borrowers with higher-rate loans typically see larger dollar savings from the same extra payment amount compared to those with lower rates.

Yes. This calculator works for any fixed-rate installment loan — mortgage, auto, personal, or student loan. Just enter the remaining balance, interest rate, remaining term, and your planned extra payment to see your savings.

The original loan term is the full length of your loan as agreed at origination (e.g. 30 years). The remaining term is how many years are left if you have already been making payments. For a brand-new loan, both values are the same. For an existing loan, use the remaining term to get accurate results.