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What could a different
mortgage rate mean?

Free calculator · No sign-up · Calculated in your browser

Compare the monthly impact

Use the same balance and remaining term to compare two interest-rate assumptions. Starting figures below are illustrative, not current mortgage offers.

First monthly payment
Comparison monthly payment
Monthly difference

Change an input to compare.

What’s included?

This is a repayment mortgage illustration using monthly payments. Both calculations use the same balance and term and assume the entered rates stay constant. Actual lender calculations, payment dates and rounding may differ.

What’s left out?

Product fees, early repayment charges, incentives, legal costs and changes after a fixed-rate period are excluded. Lower monthly payments alone do not establish that switching is cheaper overall. A base-rate change does not automatically change every mortgage payment.

What happens when a fixed rate ends?

Your lender’s terms determine the next rate. Review your deal’s end date, remaining balance, term and any charges before comparing alternatives. A qualified mortgage adviser can assess your circumstances and available products.

Keep learning

Your next step, explained.

Understand the terms and trade-offs before making a decision.

Read the remortgage guide →