Mortgage Amortization Calculator Month by month
Generate a payment schedule with principal, interest, and remaining balance. Add extra monthly payments to test payoff acceleration.
Enter values and run calculation.
How to interpret this
Early payments are interest-heavy and principal-light. Extra monthly payments usually reduce total interest more than one-time late lump sums.
Related tools: Mortgage Calculator and Refinance Break-Even Calculator. Related guide: Refinance Break-Even Guide.