How Much Can I Borrow on a £100,000 Salary?
On a £100,000 salary, most UK lenders will offer a mortgage of £400,000 to £450,000 (4 to 4.5 times your annual income). With a 10% deposit, this gives you a property budget of approximately £500,000.
Max Borrowing (4.5×)
£450,000
Monthly Payment
£2,501.25
at 4.5%
Property Budget (10% dep)
£500,000
Deposit Needed (10%)
£50,000
How Lenders Calculate Your Borrowing on £100,000
UK mortgage lenders typically use an income multiple of 4 to 4.5 times your gross annual salary. On £100,000, this means:
- Conservative (4×): £400,000
- Standard (4.5×): £450,000
Some specialist lenders offer up to 5.5× income for professionals (doctors, solicitors, accountants) or borrowers with very low outgoings. However, most high-street lenders cap at 4.5×.
Lenders also run an affordability stress test at a higher rate (typically base rate + 3–4%) to ensure you could still afford payments if rates rise. Monthly commitments like car finance, credit cards, and childcare reduce the amount available.
Property Budget by Deposit Size
| Deposit % | Deposit Amount | Max Property Price |
|---|---|---|
| 5% | £23,684 | £473,684 |
| 10% | £50,000 | £500,000 |
| 15% | £79,412 | £529,412 |
| 20% | £112,500 | £562,500 |
| 25% | £150,000 | £600,000 |
Frequently Asked Questions
Other Salary Calculations
Borrowing estimates are based on standard UK lender income multipliers (4–4.5×) and do not account for individual circumstances, outgoings, or credit history. Your actual borrowing may be higher or lower. Always consult an FCA-regulated mortgage adviser for personalised advice.