🔑 Mortgage Overpayment Calculator
A mortgage overpayment calculator shows how much interest you save and how many years you shave off your mortgage by making extra monthly payments. Compare your standard repayment schedule versus an overpayment strategy to see the exact interest saved and years gained.
Mortgage details
Interest saved by overpaying £200.00/month
£38,457.87
Compared with paying £1,389.58/month over the full 25-year term
Months saved
61 months
New payoff date
Jun 2046
Total interest with overpayments
£128,416.49
Overpayment savings
You save £38,457.87 in interest and pay off 61 months early — clearing the mortgage by Jun 2046 instead of after the full 25-year term.
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Frequently asked questions
How much can I save by overpaying my mortgage?▾
Is there a limit on mortgage overpayments in the UK?▾
Should I overpay my mortgage or invest instead?▾
What happens when I overpay a UK mortgage?▾
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Disclaimer: This calculator is for informational and educational purposes only. Results are estimates and not financial advice. Consult a licensed financial advisor before making financial decisions.