Budget & housing
How Much Mortgage Can I Borrow in the UK?
Income multiples, affordability checks, deposit size and how lenders decide what you can borrow — with worked examples.
Updated July 2026 · 8 min read
General information only — not financial, legal or tax advice. Rates and rules change; check GOV.UK or official resources before making decisions.
Key takeaways
- Most UK lenders cap borrowing at roughly 4 to 4.75 times your annual household income.
- A £40,000 salary alone might support borrowing of £160,000–£190,000, before deposit and affordability checks.
- Existing debt, childcare costs and credit commitments reduce how much lenders will offer.
- You need a deposit (often 5–10% minimum) on top of the mortgage — the property price is borrowing plus deposit.
- Lenders stress-test your payments at higher interest rates than today's deal, so the maximum on paper may not be affordable in practice.
The income multiple rule of thumb
When people ask 'how much mortgage can I borrow?', lenders start with a multiple of gross annual income. In 2026, most mainstream lenders offer between 4 and 4.75 times income for a single applicant, sometimes slightly more for joint applications with strong profiles.
This is a ceiling, not a target. A couple earning £35,000 and £25,000 (£60,000 combined) might borrow £240,000–£285,000 at typical multiples — but only if the rest of their finances support it.
| Annual income | Lower end (4×) | Typical (4.5×) | Upper end (4.75×) |
|---|---|---|---|
| £30,000 | £120,000 | £135,000 | £142,500 |
| £40,000 | £160,000 | £180,000 | £190,000 |
| £50,000 | £200,000 | £225,000 | £237,500 |
| £60,000 | £240,000 | £270,000 | £285,000 |
What lenders check beyond income
The income multiple is only the first filter. Lenders run affordability assessments that look at your outgoings — credit cards, loans, car finance, childcare, school fees and sometimes travel costs. They also stress-test whether you could still afford repayments if interest rates rise.
A clean credit file, stable employment and a manageable loan-to-value ratio (LTV) all help. Self-employed applicants usually need two or three years of accounts rather than a simple multiple.
- Monthly debt commitments reduce borrowing capacity.
- Childcare and dependants increase assumed living costs.
- Stress tests use a higher rate than your actual deal (often 6–7%+).
- Deposit size affects LTV — lower LTV often unlocks better rates and slightly higher multiples.
How your deposit fits in
The mortgage is only part of the property price. If you can borrow £180,000 and have a £20,000 deposit, your maximum property price is about £200,000. A larger deposit improves your LTV — 90% LTV (10% deposit) is common for first-time buyers; 95% deals exist but with stricter criteria and higher rates.
Stamp duty, solicitor fees and moving costs are separate — do not use your entire savings as deposit if you have nothing left for these.
Joint mortgages and second incomes
Applying with a partner combines both incomes for the multiple, which is why couples often borrow more together than either could alone. Lenders may ask how long you have lived together and whether both incomes are stable.
Some buyers add a guarantor or use a joint borrower sole proprietor structure — specialist advice is worth getting for non-standard arrangements.
Why the maximum is not always sensible
Borrowing at the top of your limit leaves little room for rate rises, job changes or life events. Many advisers suggest keeping monthly housing costs at or below 30% of take-home pay — our Rent Affordability guide uses the same principle for renters.
Use the Mortgage Repayment Calculator to see what monthly payments look like at different borrowing amounts and interest rates, not just the maximum the lender offers.
Work out your borrowing range
Use our Mortgage Affordability Calculator to estimate how much you might borrow based on income, deposit and monthly debts. Pair it with the Stamp Duty Calculator and Mortgage Repayment Calculator for a fuller picture of buying costs.
Frequently asked questions
- Can I borrow 5 times my salary?
- Some lenders offer 5× or more for high earners with large deposits and strong credit, but 4–4.75× is the mainstream range. Even if a lender offers 5×, the affordability stress test may cap you lower.
- Does my partner's income count?
- Yes, on a joint application both incomes are combined for the multiple. Both applicants are jointly liable for the full mortgage, even if one earns more.
- Do credit cards reduce how much I can borrow?
- Yes. Lenders factor in monthly repayments on credit cards, loans and car finance. Even unused credit limits can reduce affordability at some lenders. Paying down debt before applying often increases borrowing power.
- How much deposit do I need?
- Most first-time buyers need at least 5–10% of the property price. A 15–25% deposit unlocks better interest rates. The deposit is separate from stamp duty and legal fees.
Try the calculator
Put this into numbers with our free UK calculators.
Need free help? See our useful UK resources including MoneyHelper and StepChange.