UK Answers

£500,000 Mortgage: Monthly Payments

A £500,000 mortgage over 25 years at 5% costs about £2,923 a month. Here is how the payment changes with the rate and the length of the mortgage.

Repayment mortgage · a guide, not an offer · checked 8 October 2026

Monthly repayment on £500,000

Interest rate15 years20 years25 years30 years35 years
3%£3,453£2,773£2,371£2,108£1,924
4%£3,698£3,030£2,639£2,387£2,214
5%£3,954£3,300£2,923£2,684£2,523
6%£4,219£3,582£3,222£2,998£2,851
7%£4,494£3,876£3,534£3,327£3,194

Use the mortgage calculator

Repayment or interest-only?

Interest rateInterest-only a monthRepayment a month (25 years)
3%£1,250£2,371
4%£1,667£2,639
5%£2,083£2,923
6%£2,500£3,222
7%£2,917£3,534

Interest-only is cheaper each month but you still owe all £500,000 at the end, so you need a plan to repay it.

Total cost

At 5% over 25 years you pay £876,885 in total: the £500,000 borrowed plus about £376,885 of interest. Overpaying a little each month can shorten the term and cut the interest; try the mortgage overpayment calculator.

Nearby amounts

MortgageMonthly at 5% over 25 years
£400,000£2,338
£450,000£2,631
£600,000£3,508
£750,000£4,384

Figures assume a fixed rate for the whole term. Most people fix for two to five years and then move to a new deal, so payments can change. Fees and stamp duty are extra. Speak to a regulated mortgage adviser before you borrow.

Frequently asked questions

How much is a £500,000 mortgage per month?

Over 25 years at 5% a £500,000 repayment mortgage costs about £2,923 a month. At 4% it is £2,639 and at 6% £3,222.

How much interest will I pay on a £500,000 mortgage?

At 5% over 25 years you would pay about £376,885 in interest on top of the £500,000 you borrow, so £876,885 in total.

What income do I need for a £500,000 mortgage?

Lenders typically offer 4 to 4.5 times income, so you would need an income of roughly £111,111 to £125,000, depending on your outgoings.

What is the difference between repayment and interest-only?

With a repayment mortgage you pay off the loan as well as the interest, so you own the home outright at the end. With interest-only you pay just the interest each month and still owe the full amount at the end.

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