How Much Can I Borrow on My Salary?

It's the first question almost everyone asks, and the answer comes down to two numbers a lender works out about you. The first is an income multiple — a ceiling set as a multiple of your salary. The second is an affordability assessment — a stress test of what you can genuinely afford after your real outgoings. Your mortgage offer is whichever of those produces the lower figure, and for a lot of people it's the second.

Below are the 2026 multiples, worked examples from £25,000 up to £60,000 and joint incomes, why your real offer is often lower than the headline, and the levers that move the number most. For an instant estimate on your own figures, use the affordability calculator — and speak to an FCA-regulated broker before relying on any number, because this is for planning, not a quote.

Advertisement

The two numbers that decide it

Lenders cap your loan two ways at once. The income multiple is the blunt ceiling: most lending sits at 4 to 4.5 times your gross annual income. The affordability stress test is the fine-grained one: it takes your actual income, subtracts your real commitments and standardised living costs, and checks you could still pay if interest rates rose. You're offered the lower of the two. Someone with a clean budget and no debts is usually limited by the multiple; someone with car finance, credit cards or childcare is often limited by affordability well before they hit the multiple.

Income multiples in 2026

Across the UK market in 2026, the vast majority of lending falls between 4 and 4.5 times gross income. A minority of lenders stretch to 5 or even 5.5 times for higher earners or certain professions — but that's the exception, usually needing a single income above roughly £50,000 or a joint income around £75,000–£80,000.

There has been some loosening. Through 2025 the Bank of England's Financial Policy Committee relaxed the rule limiting how much of a lender's book could go above 4.5 times income, and into 2026 the regulator has consulted on going further. Several high-street names nudged their maximum multiples up as a result, with first-time buyers the main beneficiaries. But "some lenders will go higher" is not "you'll be offered higher" — most applicants still land in the 4–4.5x band, and the higher multiples come with stricter conditions.

Worked examples by salary

Here's the borrowing ceiling at a 4.5x multiple, assuming no significant debts and a clean credit profile. Treat these as upper limits — the stress test can bring your real offer below them.

• £25,000 → ~£112,500
• £30,000 → ~£135,000
• £35,000 → ~£157,500
• £40,000 → ~£180,000
• £50,000 → ~£225,000
• £60,000 → ~£270,000
• Joint £55,000 (e.g. £30k + £25k) → ~£247,500
• Joint £80,000 (e.g. £45k + £35k) → ~£360,000

Remember this is the loan, not the property price. Add your deposit on top to get the home you can buy: a £40,000 earner borrowing ~£180,000 with a £20,000 deposit is looking at a ~£200,000 property. To see what a given deposit adds at your income, read what a £20,000 deposit gets you.

The stress test — why your offer is often lower

Every lender runs an affordability assessment on top of the multiple. They take your income, subtract existing commitments — car finance, credit cards, personal loans, student loan, childcare — apply standardised living costs for your household, and confirm you could still cover the mortgage if rates rose. This routinely produces a figure below the headline multiple.

The effect of debt is larger than people expect. As a rough guide, around £500 a month of existing commitments can cut your maximum mortgage by £100,000 or more — because the lender treats that £500 as permanently unavailable for mortgage payments and scales it up across the term. That's why clearing a car loan or credit-card balance before you apply often does more for your budget than saving another few thousand in deposit.

Joint applications

Two incomes combined almost always beat one larger income, and dramatically beat a single modest one. Most lenders apply the multiple to your combined income, so two people on £30,000 each (£60,000 joint) can typically borrow far more together than one person on £45,000. Be aware the affordability test also combines your outgoings — both sets of debts and any dependants count — so a joint application isn't pure upside, but for most couples it's the single biggest lever on the budget. A Joint Borrower Sole Proprietor (JBSP) arrangement, where a family member's income is added without them owning the property, can help a solo first-time buyer reach further; see the guide's section on first-time buyer help.

What drags your figure down

• Monthly debt commitments — by far the biggest. Car finance and credit cards hit hardest.
• Dependants and childcare — built into the lender's standardised costs.
• A short or irregular income history — bonuses, commission and overtime are often only partly counted, and self-employed income is assessed differently (see self-employed mortgages).
• Credit problems — recent adverse credit narrows lenders and can tighten multiples (see mortgages with bad credit).
• The term you choose — a shorter term raises the monthly payment, which can lower what passes the affordability test.

How to increase what you can borrow

• Clear existing debt first. The highest-impact move for most people, for the reasons above.
• Apply jointly where it makes sense, or explore JBSP.
• Use a broker to find higher-multiple lenders. The lenders willing to go above 4.5x aren't always the obvious names, and the criteria differ by profession and income level. A whole-of-market broker knows which lender fits your profile — and can often find a meaningfully larger offer than a single high-street bank would give you.
• Evidence all your income. Make sure regular bonus, commission or overtime is documented; some lenders count more of it than others.
• Tidy your credit file before applying — on the electoral roll, low card balances, no recent hard searches.

Getting an accurate figure

The numbers above are a guide, not a promise — your real offer depends on the lender, your full financial picture, and the stress test. Three steps get you to a reliable figure: run your own numbers through the affordability calculator for a quick estimate; get a Decision (or Agreement) in Principle from a lender, which gives a more concrete figure based on a soft check; and speak to a broker, who can tell you which lenders will be most generous with your specific income type and circumstances. Together those move you from a rough multiple to a number you can actually offer on.

The short version: your salary sets a ceiling of roughly 4–4.5 times income, but the affordability stress test — and especially your existing debt — often sets your real limit lower. Clear debt, consider a joint or JBSP application, and use a broker to reach the lenders that lend most to someone in your position.