£100,000 Mortgage — Monthly Repayments
Monthly repayments on a £100,000 mortgage at 5.5% over 25 years are £614.09. The total amount repaid is £184,226.25 including £84,226.25 in interest.
A £100,000 mortgage is below the UK average borrowing amount. At 5.5% interest over 25 years, your monthly repayment is £614.09. Over the full term you'll repay £184,226.25, including £84,226.25 in interest.
Your deposit and total property cost
A £100,000 mortgage with a 10% deposit means you're buying a property worth £110,000. Your deposit of £10,000 gives you a loan-to-value (LTV) ratio of 90%. A larger deposit — say 15% (£16,500) or 20% (£22,000) — 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% | £527.84 | £58,351.05 |
| 4.5% | £555.83 | £66,749.74 |
| 5% | £584.59 | £75,377.01 |
| 5.5% | £614.09 | £84,226.25 |
| 6% | £644.3 | £93,290.42 |
| 6.5% | £675.21 | £102,562.15 |
| 7% | £706.78 | £112,033.76 |
How the mortgage term affects your payments
| Term | Monthly payment | Total interest |
|---|---|---|
| 15 years | £817.08 | £47,075.02 |
| 20 years | £687.89 | £65,092.95 |
| 25 years | £614.09 | £84,226.25 |
| 30 years | £567.79 | £104,404.04 |
| 35 years | £537.02 | £125,546.84 |
What salary do you need for a £100,000 mortgage?
Most UK lenders use a 4.5x income multiple. To borrow £100,000, you'd typically need an annual salary of at least £22,222. Check your take-home pay on £22,000 to see if the monthly repayments fit your budget. You can also view the full mortgage affordability breakdown for a £20,000 salary.
Stamp duty on this property
With a 10% deposit, a £100,000 mortgage means buying a property around £110,000. The stamp duty would be £0 (effective rate: 0.00%). Including your deposit and stamp duty, you'd need £10,000 upfront.
Frequently asked questions
How much is a £100,000 mortgage per month?
At 5.5% interest over 25 years, your monthly repayment on a £100,000 mortgage is £614.09. This includes both the capital repayment and interest. Over the full 25-year term, you'll pay £84,226.25 in interest on top of the original £100,000 loan.
What salary do I need for a £100,000 mortgage?
Using the standard 4.5x income multiple, you need a salary of at least £22,222 to borrow £100,000. Some lenders may offer up to 5.5x for applicants with strong credit and low outgoings, which would require a salary of £18,182.
Should I get a repayment or interest-only mortgage?
With a repayment mortgage on £100,000, you pay £614.09 per month and the loan is fully paid off after 25 years. An interest-only mortgage would cost just £458 per month, but you'd still owe the full £100,000 at the end of the term. Most residential mortgages in the UK are repayment.
Can I overpay my £100,000 mortgage?
Most lenders allow you to overpay up to 10% of the outstanding balance each year without early repayment charges. On a £100,000 mortgage, that's up to £10,000 in the first year. Regular overpayments can significantly reduce your total interest and shorten the mortgage term.