How much mortgage can I get on a £40,000 salary?

On a £40,000 salary, most UK lenders will offer between £160,000 (4x) and £180,000 (4.5x). With a £20,000 deposit, you could buy a property worth £180,000 to £200,000. Some specialist lenders offer up to 5.5x for higher earners.

What income multiple do UK mortgage lenders use?

Most UK high street lenders use a 4 to 4.5x income multiple for standard mortgages. This means if you earn £50,000, you could borrow £200,000 to £225,000. Joint applicants can combine incomes. Beyond the multiple, lenders also assess your monthly outgoings and apply a stress test at a higher rate.

How Much Can I Borrow?

UK mortgage affordability based on salary and deposit

Your annual salary (before tax)

Partner's salary (leave 0 if buying alone)

Deposit saved

Important: These are indicative estimates only. Actual borrowing depends on your outgoings, credit history, employment type, and individual lender criteria. Most lenders will also stress-test at a rate 3% above your actual rate. This is not financial advice. Speak to a mortgage adviser for your personal situation.

How Lenders Calculate Affordability

UK mortgage lenders use two main methods to decide how much you can borrow:

1. Income multiple: Most high street lenders cap borrowing at 4 to 4.5 times your gross annual income. For joint applications, both salaries are combined. Some specialist lenders offer up to 5.5x for professionals (doctors, solicitors, accountants) with high earning potential.

2. Affordability assessment: Beyond the simple multiple, lenders review your monthly outgoings (childcare, loans, credit cards, bills) to check you can actually afford the payments. They also apply a "stress test" — checking you could still pay if rates rose by 2-3%.

Deposit and Loan-to-Value (LTV)

Your deposit determines your LTV ratio. A £30,000 deposit on a £300,000 property = 90% LTV. Lower LTV ratios get better interest rates:

95% LTV (5% deposit) — Highest rates, limited options
90% LTV (10% deposit) — More options available
85% LTV (15% deposit) — Good rate improvement
75% LTV (25% deposit) — Significantly better rates
60% LTV (40% deposit) — Best rates available

Tips to Increase Borrowing

Pay off outstanding debts before applying (reduces outgoings in affordability check)
Cancel unused credit cards (the available credit counts against you)
Ensure you're on the electoral roll (helps credit score)
Consider a longer term (35 years) — lower monthly payment improves affordability, though costs more in total
Some lenders accept bonus/overtime income at a discounted rate

For monthly payment estimates on a specific mortgage amount, use our repayment calculator.