How do changing interest rates affect your mortgage repayments?

Mortgage interest rate change calculator

What if your mortgage interest rate changes?

Our interest rate change calculator can show how much your monthly mortgage repayments could go up or down, based on changes to your interest rate.

This could be helpful if you’re coming to the end of a fixed rate period, are looking about for a new deal or you’re wondering how potential rate changes could affect your monthly repayments.

With Standard Variable Rate and tracker rates, the interest rate applied to your mortgage could change. For fixed rate mortgages, the interest rate will stay the same until the end of the fixed rate period.

Let's get started...

See how a change of interest rates could affect your monthly mortgage payments.

Please complete all fields to compare the monthly repayments.

Remaining mortgage term

Interest rate must be greater than 0%

Interest rate must be greater than 0%

Based on what you've told us

Your current monthly mortgage repayments are about:


Your new repayments could be:


All figures provided are for illustrative purposes only. Calculations based on interest accruing daily and applied monthly.

Mortgage help and support

Get an idea of how much you could borrow

Use our mortgage calculator to see how much you could borrow, review our mortgage rates and get an idea of what your monthly payments could be.

For properties in the Channel Islands, Isle of Man or Gibraltar.

Compare the types of mortgages available

Compare the different mortgage types that are available to you such as fixed, tracker or standard variable rate mortgages.

It's important to think about your financial circumstances to choose the option that is best for you.

Are you worried about the cost of living?

The rising cost of living is squeezing pockets everywhere. If you’re feeling the pinch you’re not alone.

If you're struggling to pay the bills, or are worried you might miss a mortgage payment, please get in touch as soon as possible.