Mortgage overpayment calculator
Estimate how overpayments could reduce your mortgage term and interest cost.
Estimate only. Check your mortgage terms for overpayment limits, early repayment charges and lender rules before making overpayments.
New estimated payoff time
£0
- Time saved0 months
- Interest saved£0
- Total interest after overpaying£0
See how mortgage overpayments could help
A mortgage overpayment calculator can help you understand the possible benefit of paying more than your required monthly repayment. Even a modest monthly overpayment can reduce the interest charged and shorten the time it takes to repay the mortgage.
Monthly and one-off overpayments
This calculator allows for both a regular monthly overpayment and a one-off payment. It compares the estimated interest and payoff time against the same mortgage without overpayments.
Check your mortgage conditions first
Some mortgage products limit how much you can overpay each year or charge early repayment fees. Always check your lender's rules before making an overpayment.
Can overpayments reduce mortgage interest?
Yes. Reducing the balance sooner usually reduces the amount of interest charged over the remaining mortgage term.
Will every lender allow overpayments?
Most lenders allow some overpayments, but limits and charges vary by mortgage product.
Is this a guaranteed saving?
No. It is an estimate based on the rate, balance and term entered.