£1,500,000 Mortgage Repayments (2026)
A £1,500,000 repayment mortgage at 5% over 25 years costs £8,769 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% | £10,723 | £8,699 | £7,509 | £6,736 | £6,199 |
| 4% | £11,095 | £9,090 | £7,918 | £7,161 | £6,642 |
| 4.5% | £11,475 | £9,490 | £8,337 | £7,600 | £7,099 |
| 5% | £11,862 | £9,899 | £8,769 | £8,052 | £7,570 |
| 5.5% | £12,256 | £10,318 | £9,211 | £8,517 | £8,055 |
| 6% | £12,658 | £10,746 | £9,665 | £8,993 | £8,553 |
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 £1,500,000 mortgage?
At a 5% interest rate over 25 years, a £1,500,000 repayment mortgage costs £8,769 a month — £2,630,655 repaid in total over the term. At 4% the same mortgage is £7,918 a month, and stretching to 30 years at 5% lowers the payment to £8,052.
How does the term length change the cost?
Longer terms cut the monthly payment but increase the total interest dramatically. On £1,500,000 at 5%, a 15-year term costs £11,862 a month (£2,135,143 total), while a 35-year term costs £7,570 a month but £3,179,532 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.