£580,000 Mortgage Repayments (2026)
A £580,000 repayment mortgage at 5% over 25 years costs £3,391 a month. The table below covers rates from 3.5% to 6% and terms from 15 to 35 years.
| Rate | 15 yrs | 20 yrs | 25 yrs | 30 yrs | 35 yrs |
|---|---|---|---|---|---|
| 3.5% | £4,146 | £3,364 | £2,904 | £2,604 | £2,397 |
| 4% | £4,290 | £3,515 | £3,061 | £2,769 | £2,568 |
| 4.5% | £4,437 | £3,669 | £3,224 | £2,939 | £2,745 |
| 5% | £4,587 | £3,828 | £3,391 | £3,114 | £2,927 |
| 5.5% | £4,739 | £3,990 | £3,562 | £3,293 | £3,115 |
| 6% | £4,894 | £4,155 | £3,737 | £3,477 | £3,307 |
Different amount or rate? Use the mortgage repayment calculator.
How it's worked out
Figures use the standard repayment-mortgage formula (capital and interest, equal monthly payments): payment = loan × monthly rate ÷ (1 − (1 + monthly rate)−months). They assume the rate stays the same for the whole term — in practice you'll re-fix every few years. Product fees, valuation fees and overpayments are not included.
FAQ
What are the monthly repayments on a £580,000 mortgage?
At a 5% interest rate over 25 years, a £580,000 repayment mortgage costs £3,391 a month — £1,017,187 repaid in total over the term. At 4% the same mortgage is £3,061 a month, and stretching to 30 years at 5% lowers the payment to £3,114.
How does the term length change the cost?
Longer terms cut the monthly payment but increase the total interest dramatically. On £580,000 at 5%, a 15-year term costs £4,587 a month (£825,589 total), while a 35-year term costs £2,927 a month but £1,229,419 in total — the longer term repays far more interest for the same loan.
Are these figures exact quotes?
No — they are standard repayment-mortgage arithmetic (capital and interest, fixed rate for the whole term) to help you budget. A real offer depends on your deal period, fees, loan-to-value and credit profile, and rates change when a fixed deal ends. Interest-only mortgages cost less per month but repay none of the capital.