Answers · UK 2025/26

How much are mortgage repayments on a £700,000 mortgage in the UK?

A £700,000 repayment mortgage at 4.5% over 25 years costs approximately £3,890/month (roughly £1,167,000 total). At 5%, monthly payments rise to about £4,092 (roughly £1,227,000 total). Interest-only at 4.5% costs £2,625/month, but the £700,000 capital is still owed at the end.

Last updated: 10 July 2026Last reviewed: 10 July 2026How we verify

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For a £700,000 capital-and-interest repayment mortgage in the UK over 25 years: at 4.0% around £3,695/month (roughly £1,108,000 total); at 4.5% around £3,890/month (roughly £1,167,000 total); at 5.0% around £4,092/month (roughly £1,227,000 total); at 5.5% around £4,300/month (roughly £1,290,000 total); at 6.0% around £4,510/month (roughly £1,353,000 total). Over 30 years at 4.5%, monthly payments fall to roughly £3,547 but total interest rises. Interest-only at 4.5% costs £2,625/month, with the full £700,000 capital still owed at the end of the term. A mortgage of this size typically requires gross household income of roughly £156,000 to £175,000 under standard 4-4.5x multiples, and most high street lenders cap individual loan sizes well below this without a private banking or specialist high-net-worth arrangement. A 10% deposit on a £778,000 property (90% LTV) is uncommon at this loan size -- most lenders expect at least 15-25% deposit for loans above £500,000. Use the mortgage calculator to check current rates for large loans.