How much salary do I need for a £250,000 mortgage?

At a 4× income multiple you would need a salary of £62,500. At 4.5× you would need £55,556. With two applicants, the combined income is used. A £250,000 mortgage at 5% over 25 years costs approximately £1,461 per month.

How much salary do I need for a £300,000 mortgage?

At a 4× income multiple you would need £75,000. At 4.5× income you would need £66,667. Use our calculator above to get the exact monthly payment and see how deposit size affects the figure.

How much salary do I need for a £400,000 mortgage?

At 4× income: £100,000. At 4.5× income: £88,889. Many high-street lenders cap at 4.5× but some specialist lenders offer 5× or 5.5× for professional borrowers with strong credit histories.

Can I get a mortgage at 5× my salary?

Yes, some lenders offer 5× income multiples for specific borrowers — typically those earning over £75,000, key workers under certain government schemes, or first-time buyers using certain products. This is less common and usually requires a clean credit record and low commitments.

Does my deposit size affect how much I can borrow?

Indirectly, yes. A larger deposit gives you a lower LTV (loan-to-value ratio), which unlocks better interest rates. A lower rate means a lower monthly payment, which means the lender's affordability assessment is easier to pass. A 10% deposit vs 5% deposit can unlock significantly better rates.

Do lenders use gross or net salary for mortgage affordability?

Lenders use gross salary (before tax and National Insurance). They then apply their own stress tests, typically assessing whether you could afford payments if rates rose to 6-8%. This is why the 'income multiple' is a guide — individual lender affordability assessments vary.

What is a joint mortgage income multiple?

For joint mortgages, most lenders use the combined gross income of both applicants. So two people earning £35,000 each (£70,000 combined) could borrow £280,000-£315,000 on 4× to 4.5× multiples. Some lenders use 100% of the highest earner's income plus 50% of the second income.

SALARYFORMORTGAGE

Find out exactly what salary you need to secure a UK mortgage on any property. See single and joint income requirements at 4×, 4.5×, and 5× multiples — plus your monthly payment.

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What Is This Calculator For?

This calculator answers the single most important question for anyone looking to buy property in the UK: what salary do I actually need? It uses the standard income multiple approach that UK mortgage lenders use — typically 4×, 4.5×, or 5× your gross annual income — and combines it with a full mortgage repayment calculation so you can see both the borrowing threshold and the monthly cost. Unlike lender's own affordability tools, this gives you a clean, transparent view of the numbers before you approach any bank or broker.

How UK Mortgage Affordability Works

UK lenders assess affordability in two stages: an income multiple check and a detailed affordability assessment.

Income Multiple (Stage 1)

Most lenders will lend a maximum of 4× to 4.5× your gross annual income. So a £50,000 salary typically supports a mortgage of £200,000-£225,000. Some lenders offer 5× or 5.5× for specific borrowers.

Affordability Assessment (Stage 2)

The lender also stress-tests whether you could afford the monthly payments if interest rates rose to 6-8%. They check your outgoings, existing debts, dependants, and credit commitments. This is where some borrowers fail even when the income multiple is met.

Deposit & LTV

A larger deposit gives you a lower loan-to-value ratio. This unlocks better rates — the difference between a 95% LTV and 75% LTV mortgage can be 1.5-2% in interest rate, which significantly changes your monthly payment and total cost.

Joint Applications

Two incomes are combined for the affordability assessment. Our calculator shows the per-person salary each joint applicant needs if both earn equally — adjust for situations where incomes differ.

Income Multiple Formula

Max Mortgage = Gross Annual Salary × Income Multiple (4× to 5×)

Lenders use: Maximum loan = Gross annual income × lender's income cap. The most common cap is 4.5×. Monthly payment uses the amortisation formula: M = P × [r(1+r)^n] / [(1+r)^n - 1], where P is the mortgage amount, r is monthly rate (annual rate ÷ 12), and n is total months. This calculator solves the inverse: given P, what income is needed at each multiple?

Tips & Best Practices

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The 4.5× income multiple is the most commonly used — use this as your planning baseline
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A 10% deposit unlocks significantly better rates than 5% — even saving an extra 2-3% can save thousands over the term
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Lenders stress-test at 6-8% rate — make sure you could still afford the payment if rates rose
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Pay off any existing debts before applying — credit card balances and car finance reduce what you can borrow
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Joint applications are powerful — two modest salaries can access mortgages that neither could alone
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A mortgage broker can access deals not available direct — often worth the fee on larger mortgages

Frequently Asked Questions

M Singh CeMAP DipFA · 25+ Years UK Financial Services

Important Information

This calculator is for illustrative purposes only and does not constitute mortgage advice, a personal recommendation, or a mortgage offer.

Results are based on the figures you enter and assume a standard capital repayment structure. Actual rates, fees, terms, and eligibility will vary by lender and individual circumstances.

You should seek independent advice from a qualified mortgage adviser or broker before making any financial commitment.