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How to borrow more than 4.5 times your salary

By Sol Tourgeman, mortgage broker
7 October 2026·6 min read
Illustration of a house on top of rising stacks of blocks representing borrowing more than 4.5 times salary
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The 4.5 times salary figure most people treat as gospel is not a law. It's just the standard cap most lenders apply to most applicants. A meaningful group of lenders will go to 5, 5.5 or even 6 times income for the right borrower, and "the right borrower" often describes exactly the people being told no: professionals with strong salaries and good credit.

If a bank has quoted you a number that doesn't buy the home you want, here's why that's not the final word.

Where the 4.5x cap comes from

Two things sit behind it. First, lenders are limited by the regulator on how much of their lending can go out at high income multiples, so higher-multiple deals are deliberately rationed and reserved for borrowers who clearly qualify. Second, every lender runs its own affordability model, which tests your income against your outgoings and stress-tests the payments. The multiple is a ceiling, not a promise, and affordability is the engine underneath it.

The practical consequence: the same person can be offered wildly different maximums by different lenders, because each one rations its higher-multiple lending differently and counts income differently.

Who can borrow 5x, 5.5x or 6x

Three groups do well here.

Higher earners are the big one. Many lenders unlock enhanced multiples once income passes a threshold, commonly around £50,000 for a sole applicant or £75,000 joint, with the most generous tiers reserved for incomes above that. For a couple of professionals in North London, those thresholds are very reachable, and crossing one can move you from 4.5x to 5.5x overnight. On a £90,000 joint income, that's the difference between borrowing £405,000 and £495,000.

Qualified professionals get their own schemes. Doctors, dentists, solicitors, accountants, actuaries and similar can access professional mortgages at enhanced multiples, on the logic that their income trajectory is predictable and rising.

First-time buyers have dedicated higher-multiple products with some lenders, sometimes up to 6 times income, even with smaller deposits, provided affordability stacks up.

The income you're not being credited for

This is where high earners lose the most borrowing without realising. If part of your package is bonus, commission, overtime or vested shares, lenders differ enormously on how much of it they'll count. Some take half of a two-year average. Others will count much more. The same goes for retained profit if you run a limited company, which we cover in our guide to mortgages for company directors. For someone whose bonus is a serious slice of total pay, the lender's policy on variable income can matter more than the headline multiple.

So the question isn't just "who lends the highest multiple," it's "who counts the most of my actual income, then applies a strong multiple to it." Getting both right is the whole game.

How to strengthen your case

A few things reliably push your maximum up. Clear or reduce monthly commitments before applying, since car finance, loans and heavy credit card balances directly shrink what affordability models will give you. A bigger deposit helps, as some enhanced multiples only apply below certain loan-to-values. Keep your credit record clean in the run-up. And if you're borrowing jointly, remember thresholds are often based on combined income, so a second salary can unlock a tier as well as add to the pot.

What I'd steer you away from is stretching to the absolute maximum just because it's offered. The right amount to borrow is the one your life comfortably affords, including when rates change. More on that honest conversation below.

Why the first answer isn't the final word

A high street bank can only offer you its own policy. If its model caps you at 4.5x and counts half your bonus, that's its answer, not the market's. Placing the same application with a lender whose thresholds and income policy fit your profile is routinely the difference between the flat you'd settle for and the house you actually want.

How we can help

This is bread and butter for us. We work with professionals and higher earners across Edgware, North London and Hertfordshire, map your full income package against lender criteria, and place your residential mortgage where your earnings are counted properly and the multiple works hardest, while being straight with you about what's sensible to take on.

If you've been quoted a number that doesn't get you where you want to be, email solomon@kudosmortgages.com or book a quick call and we'll see what's really available.

Frequently asked questions

Can I borrow more than 4.5 times my salary?

Yes, if you fit the criteria. Several lenders offer 5 to 5.5 times income for higher earners and strong applicants, and some go to 6 times for professionals, first-time buyer schemes or higher income brackets. Affordability checks still apply on top of any multiple.

What salary do I need for a 5.5 times mortgage?

Thresholds vary by lender, but enhanced multiples commonly start around £50,000 for a sole applicant or £75,000 for joint applications, with the highest tiers reserved for larger incomes. The exact cut-offs change regularly, which is where a broker earns their keep.

Do lenders count my bonus and commission?

Usually, but to very different degrees. Some count half of a two-year average, others considerably more. If variable pay is a big part of your package, choosing a lender generous on bonus income can raise your maximum more than chasing a higher headline multiple.

Why do different lenders offer me such different amounts?

Each lender has its own affordability model, income policy and limits on higher-multiple lending. The same applicant can be offered figures tens of thousands of pounds apart, which is why the first quote should never be treated as the market's answer.

Is borrowing 5 or 6 times my salary a good idea?

It can be, for someone with a strong, rising income and modest outgoings, but the maximum available and the sensible amount are different numbers. Payments need to stay comfortable, including if rates rise, and that judgement is personal rather than a formula.

Been quoted less than you need?

Book a free call. We'll talk through your situation, explain your options, and help you decide on the best path forward.

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