Mortgage Overpayment
Calculator
Discover how making regular overpayments can save you thousands of pounds in interest and help you become mortgage-free years earlier.
Calculate Your Savings
How Overpayments Work
Understand the mechanics of overpaying your mortgage and how it reduces interest
Should You Overpay?
Weigh the pros and cons of overpaying vs other uses for your money
10% Rule Explained
Learn about overpayment caps and early repayment charges
Frequently Asked Questions
How do mortgage overpayments work?
Mortgage overpayments are additional payments you make on top of your regular monthly mortgage payment. These extra payments go directly towards reducing your mortgage balance, which in turn reduces the amount of interest you pay over time. Learn more about how overpayments work.
What is the 10% overpayment rule?
Many UK mortgage lenders allow you to overpay up to 10% of your outstanding balance each year without incurring early repayment charges (ERCs). Check your mortgage terms to understand your specific overpayment allowance. Learn about the 10% rule.
How accurate is this calculator?
This calculator uses standard mortgage mathematics to provide accurate estimates. However, actual results may vary depending on your lender's specific terms, how they apply overpayments, and when payments are made. Always verify with your mortgage lender before making overpayments.