For the use of mortgage intermediaries & other professionals only

Rate Change Calculator

Use our Rate Change Calculator to get an idea of how much a monthly mortgage payment might change by.

Where a mortgage is made up of a number of variable rate sub-accounts or parts, you’ll need to complete separate calculations for each one.

If a mortgage is affected by a rate change, we will always write to the customer to let them know their new monthly payment ahead of it being taken.

Your customer can find the current mortgage details in their most recent annual mortgage statement.
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Your customer can find the current mortgage details in their most recent annual mortgage statement. If your customer has a mortgage made of part repayment and part interest only, you'll need to complete a separate calculation for each.

If your customer has a mortgage made of part repayment and part interest only, you'll need to complete a separate calculation for each.

Use the + or - buttons to add or deduct incremental changes of 0.25%. Or just type in the actual rate change you'd like to see illustrated.
Calculate Payment Change

Estimated monthly payment change

Based on your inputs, if the interest rate changed from ##currentinterestrate##% to ##newinterestrate##%, the approximate change to the monthly payment would be:

£##changerepayment## per month*

* The figure shown is for illustrative purposes only.

Based on your inputs, if the interest rate changed from ##currentinterestrate##% to ##newinterestrate##%, the approximate change to the monthly payment would be:

£##changeinterest## per month*

* The figure shown is for illustrative purposes only.

Why is the estimated payment change more/less than I expected?

The figure shown is for illustrative purposes only.