£900,000 Mortgage — Monthly Repayments
Monthly repayments on a £900,000 mortgage at 5.5% over 25 years are £5,526.79. The total amount repaid is £1,658,036.23 including £758,036.23 in interest.
A £900,000 mortgage puts you well above the average UK borrowing level. Monthly repayments at 5.5% over 25 years are £5,526.79. The total interest cost of £758,036.23 is 84% of the loan.
Your deposit and total property cost
A £900,000 mortgage with a 10% deposit means you're buying a property worth £990,000. Your deposit of £90,000 gives you a loan-to-value (LTV) ratio of 90%. A larger deposit — say 15% (£148,500) or 20% (£198,000) — would reduce your monthly payments and may qualify you for a lower interest rate. Lenders typically offer their best rates at 60% LTV or below.
Monthly payments at different interest rates
| Rate | Monthly payment | Total interest |
|---|---|---|
| 4% | £4,750.53 | £525,159.47 |
| 4.5% | £5,002.49 | £600,747.69 |
| 5% | £5,261.31 | £678,393.11 |
| 5.5% | £5,526.79 | £758,036.23 |
| 6% | £5,798.71 | £839,613.78 |
| 6.5% | £6,076.86 | £923,059.34 |
| 7% | £6,361.01 | £1,008,303.83 |
How the mortgage term affects your payments
| Term | Monthly payment | Total interest |
|---|---|---|
| 15 years | £7,353.75 | £423,675.2 |
| 20 years | £6,190.99 | £585,836.58 |
| 25 years | £5,526.79 | £758,036.23 |
| 30 years | £5,110.1 | £939,636.36 |
| 35 years | £4,833.15 | £1,129,921.54 |
What salary do you need for a £900,000 mortgage?
Most UK lenders use a 4.5x income multiple. To borrow £900,000, you'd typically need an annual salary of at least £200,000. Check your take-home pay on £200,000 to see if the monthly repayments fit your budget.
Stamp duty on this property
With a 10% deposit, a £900,000 mortgage means buying a property around £990,000. The stamp duty would be £43,750 (effective rate: 4.38%). Including your deposit and stamp duty, you'd need £133,750 upfront.
Frequently asked questions
How much is a £900,000 mortgage per month?
At 5.5% interest over 25 years, your monthly repayment on a £900,000 mortgage is £5,526.79. This includes both the capital repayment and interest. Over the full 25-year term, you'll pay £758,036.23 in interest on top of the original £900,000 loan.
What salary do I need for a £900,000 mortgage?
Using the standard 4.5x income multiple, you need a salary of at least £200,000 to borrow £900,000. Some lenders may offer up to 5.5x for applicants with strong credit and low outgoings, which would require a salary of £163,636.
Should I get a repayment or interest-only mortgage?
With a repayment mortgage on £900,000, you pay £5,526.79 per month and the loan is fully paid off after 25 years. An interest-only mortgage would cost just £4,125 per month, but you'd still owe the full £900,000 at the end of the term. Most residential mortgages in the UK are repayment.
Can I overpay my £900,000 mortgage?
Most lenders allow you to overpay up to 10% of the outstanding balance each year without early repayment charges. On a £900,000 mortgage, that's up to £90,000 in the first year. Regular overpayments can significantly reduce your total interest and shorten the mortgage term.