What would a mortgage on GBP 300,000 cost each month?

With a 10% deposit you’d borrow GBP 270,000. At 5.97% over 25 years, the payment is about GBP 1,735 a month. Your own rate will differ.

What rate does this calculator start with?

The average two-year fixed rate, which was 5.97% on 28 October 2026. It’s a starting point for United Kingdom, not an offer.

Stamp duty, legal fees, surveys, lender fees, buildings insurance. Add any regular ones under other monthly costs.

Free tool

See your monthly mortgage payment in GBP, the total interest and what paying extra would save. Nothing you enter leaves your browser.

Enter a home price and interest rate to see your payment.

What would a mortgage on GBP 300,000 cost each month?: With a 10% deposit you’d borrow GBP 270,000. At 5.97% over 25 years, the payment is about GBP 1,735 a month. Your own rate will differ.
What rate does this calculator start with?: The average two-year fixed rate, which was 5.97% on 28 October 2026. It’s a starting point for United Kingdom, not an offer.
What isn’t included?: Stamp duty, legal fees, surveys, lender fees, buildings insurance. Add any regular ones under other monthly costs.

Rate dated 28 October 2026. Source: Moneyfacts average, reported by HomeOwners Alliance. This is an estimate, not financial advice.