Answers · UK 2025/26

How much can I borrow for a mortgage in the UK?

Most UK lenders offer between 4 and 4.5 times your annual income (sometimes higher for certain professions or larger deposits), though the final amount also depends on your outgoings, existing debts, credit history and the specific lender's affordability assessment. Two applicants combining incomes can often borrow significantly more than either could alone.

Last updated: 2 July 2026Last reviewed: 2 July 2026How we verify

Full answer

Mortgage borrowing limits are not a single fixed multiple, but the result of a detailed affordability assessment that considers far more than just your headline salary. **The income multiple starting point** As a rough starting point, most mainstream lenders offer around 4 to 4.5 times your annual gross income, with some lenders offering higher multiples (5 times or more) for specific circumstances, such as certain professions (doctors, accountants, lawyers), larger deposits, or lower overall debt levels -- but this multiple is only a starting point, not a guarantee. **What actually determines your true maximum** Lenders run a detailed affordability assessment considering your regular outgoings (existing debts, credit card balances, car finance, childcare costs, other regular commitments), your credit history, the number of dependants, and increasingly, a stress test of whether you could still afford payments if interest rates rose -- two people with identical salaries but different spending patterns or existing debts can be offered very different maximum loan amounts. **Joint applications** Applying jointly with a partner combines both incomes for the income multiple calculation, often significantly increasing your maximum borrowing compared with either applicant alone -- though joint outgoings and debts are also combined, so the net effect depends on both parties' full financial picture. **Self-employed and variable income** Self-employed applicants are typically assessed on an average of their last 2-3 years' profits (via SA302 tax calculations or accounts), which can produce lower maximum borrowing than an equivalent employed salary if profits have been inconsistent or are on an upward trend not yet reflected in historical averages. **Worked example** A couple with a combined income of £70,000 (£40,000 and £30,000) and minimal existing debts might be offered around 4.5 times their combined income by a mainstream lender, giving a maximum mortgage of roughly £315,000 -- though the actual maximum depends heavily on their specific outgoings, credit history, and the lender's individual assessment criteria. **Stress testing against rate rises** Lenders must check you could still afford payments if interest rates rose from your initial deal rate (often testing against a rate several percentage points higher than your actual offered rate), which can reduce your maximum borrowing compared with a simple calculation based purely on your current rate and income. **Practical tip** Use the Mortgage Affordability calculator to get a realistic estimate based on your specific income, outgoings and deposit, and get a mortgage in principle from more than one lender, since maximum borrowing amounts can vary meaningfully between lenders even for identical applicant circumstances.