Rate Change Calculator

If you're a Nationwide mortgage customer and the base rate changes, we'll write to you to confirm your new rate and payment details if your current mortgage is affected. If you'd like to find out more, please visit our dedicated Bank of England base rate page, or use the calculator below to work out how a base rate change may affect your monthly mortgage payments.

This calculator provides an indication of the possible change in your monthly mortgage payments in the event of an interest rate change. All figures are indicative and for illustrative purposes only.

There is a limit to how low your interest rate can be if you're on a Nationwide tracker mortgage. Find out more about tracker floor.

Interest only mortgages

If you repay all or part of your mortgage on an interest only basis, your monthly payments only pay the interest due and don’t go towards reducing the amount you borrowed. So it’s important you have plans in place and regularly check they’re on track to repay the full interest only amount by the end date of the mortgage.