£600,000 Mortgage: Monthly Payments
A £600,000 mortgage over 25 years at 5% costs about £3,508 a month. Here is how the payment changes with the rate and the length of the mortgage.
Monthly repayment on £600,000
| Interest rate | 15 years | 20 years | 25 years | 30 years | 35 years |
|---|---|---|---|---|---|
| 3% | £4,143 | £3,328 | £2,845 | £2,530 | £2,309 |
| 4% | £4,438 | £3,636 | £3,167 | £2,864 | £2,657 |
| 5% | £4,745 | £3,960 | £3,508 | £3,221 | £3,028 |
| 6% | £5,063 | £4,299 | £3,866 | £3,597 | £3,421 |
| 7% | £5,393 | £4,652 | £4,241 | £3,992 | £3,833 |
Repayment or interest-only?
| Interest rate | Interest-only a month | Repayment a month (25 years) |
|---|---|---|
| 3% | £1,500 | £2,845 |
| 4% | £2,000 | £3,167 |
| 5% | £2,500 | £3,508 |
| 6% | £3,000 | £3,866 |
| 7% | £3,500 | £4,241 |
Interest-only is cheaper each month but you still owe all £600,000 at the end, so you need a plan to repay it.
Total cost
At 5% over 25 years you pay £1,052,262 in total: the £600,000 borrowed plus about £452,262 of interest. Overpaying a little each month can shorten the term and cut the interest; try the mortgage overpayment calculator.
Nearby amounts
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 £600,000 mortgage per month?
Over 25 years at 5% a £600,000 repayment mortgage costs about £3,508 a month. At 4% it is £3,167 and at 6% £3,866.
How much interest will I pay on a £600,000 mortgage?
At 5% over 25 years you would pay about £452,262 in interest on top of the £600,000 you borrow, so £1,052,262 in total.
What income do I need for a £600,000 mortgage?
Lenders typically offer 4 to 4.5 times income, so you would need an income of roughly £133,333 to £150,000, 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.
Figures are for the 2026/27 tax year from official sources and are estimates for guidance only, not financial or legal advice. Printed from ukanswers.co.uk.