See How Much You Could Save on Your UK Mortgage.
Free calculator showing how overpayments could cut years off your mortgage and save thousands in interest.
Independent UK mortgage calculator. No email required
Step 1
Enter Your Mortgage Details
Add your current mortgage balance, interest rate, remaining term and any planned overpayments. No personal details or sign-up required.
Step 2
Instantly See Your Potential Savings
We calculate how overpayments could reduce the interest you pay and shorten your mortgage term, using clear UK-focused assumptions.
Step 3
Explore Your Options
Adjust overpayment amounts to compare scenarios and understanding what works best for your situation before speaking to a lender or advisor.
Mortgage Overpayment Calculator (UK)
This mortgage overpayment calculator helps UK homeowners understand how making monthly or one-off overpayments can reduce both the total interest paid and the length of their mortgage. By entering your balance, interest rate, and overpayment amount, you can see how even small changes may save thousands of pounds over time.
Overpayments reduce your outstanding balance earlier, which means less interest is charged overall. This can either shorten your mortgage term, lower future monthly payments, or both — depending on how your lender applies overpayments.
The calculator is designed for UK mortgages and reflects common lender rules, including typical overpayment limits and fixed-rate considerations. Results are estimates only and should be used for planning rather than financial advice.
