Mortgage Overpayment Calculator (UK)

Coming soon · #6

See how much interest a £200/month overpayment saves — and years cut off your term.

Coming soon. This tool is #6 in the ToolNest build queue. The page below explains exactly what it will do when it launches — we list planned tools openly instead of pretending they exist.

About this tool

Planned: a UK-focused mortgage overpayment calculator with monthly overpayments, one-off lump sums, the common 10% yearly overpayment cap, and reduce-term vs reduce-payment comparison. UK searchers are served by small UK-only sites today, and the potential savings (£40k+ interest on typical examples) make this the highest-value finance idea in the research.

Searches this tool answers

People find this tool by searching for “mortgage overpayment calculator uk”. Related searches it is built for:

mortgage overpayment calculator 10 percent limit
mortgage payoff calculator with extra payments and lump sum
how much interest will i save overpaying 200 a month

Frequently asked questions

How much can overpaying save?

On a £250,000 mortgage, overpaying about £200–£250 a month can clear the loan roughly 6 years early and save around £42,000–£49,000 in interest, based on examples published by existing UK calculators.

What is the 10% overpayment limit?

Most UK fixed-rate mortgages allow overpayments of up to 10% of the balance per year without an early repayment charge. The calculator will include a cap toggle.

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