Mortgage Overpayment Calculator | UK

This calculator uses the standard amortisation formula to compute monthly payments based on loan amount, interest rate, and term. The formula accounts for compound interest accrued monthly over the loan period.

You need three pieces of information: the loan amount (principal), the annual interest rate as a percentage, and the loan term in years. These values are multiplied by the number of monthly periods to determine your payment.

This calculator provides accurate estimates based on standard amortisation. However, it does not include property taxes, insurance, homeowners' association fees, or potential rate adjustments. Always verify with your lender for official figures.

Yes, this calculator works for any mortgage type. Simply enter your loan amount, interest rate, and term. Note that buy-to-let mortgages may have different rates and terms than residential mortgages.

The monthly payment is the amount you must pay each month to fully repay your mortgage over the specified term. This covers both principal and interest, though it excludes taxes, insurance, and other fees.

Recalculate if your circumstances change: when rates change, if you're considering overpayments, or if you're evaluating refinancing options. Annual reviews are recommended to stay informed about your debt.

All calculations are performed in your browser. We do not store, transmit, or log any of your input data. For more information, please see our privacy policy.

This calculator assumes a standard amortising mortgage with fixed monthly payments throughout the term. It does not account for variable rates, payment holidays, offset mortgages, or early repayment penalties.