How Much Can I Borrow for a Mortgage?
Published 2026-07-17 · Updated 2026-07-17 · ~6 min read
Most lenders will lend around 4.5 times your income, with some reaching 5x or 5.5x for certain professionals or higher earners. That figure is then reduced by affordability: existing debts, childcare and other commitments all lower it, and lenders stress-test that you could still pay if rates rose. Your maximum is whichever of the two limits, multiple or affordability, is lower.
- ~4.5x income sets the ceiling for most lenders.
- Affordability and the stress test can pull the real figure below that.
- Existing debt is the biggest silent reducer of your maximum.
- Joint applications combine incomes, but also commitments.
"How much can I borrow?" is really two questions in one: how much a lender will offer, and how much you can comfortably repay. Sensible borrowing sits at the overlap. This guide belongs to our first-time buyer mortgage guide for Essex, and it pairs naturally with the deposit guide, together they give you your budget.
How do lenders decide the maximum?
Lenders apply two tests and take the lower result. The first is the income multiple, typically up to about 4.5 times your annual income, sometimes higher for particular jobs or larger deposits. The second is affordability: a detailed look at your income against your regular outgoings, to see what's genuinely left to service a mortgage.
What is the stress test, and why does it matter?
On top of affordability, lenders stress-test. Rather than only checking you can pay at today's rate, they check you could still pay if your rate rose to a higher assumed level. This is a regulatory expectation designed to stop people borrowing right up to the edge, and it's the main reason your realistic maximum is often lower than a headline income multiple implies.
What quietly reduces how much you can borrow?
- Existing debt. Car finance, credit cards and loans all reduce the affordability figure, often more than people expect.
- Dependants and childcare. Counted as committed monthly costs, so they lower the maximum.
- Short-term commitments. Even things ending soon can count, depending on the lender.
- Irregular income. Bonus, commission and overtime are counted differently, some lenders use a percentage, some ignore it. This is where self-employed and commission-based applicants gain or lose the most; see our self-employed mortgages guide.
Clearing a £200-a-month car finance agreement before applying can lift your borrowing by more than a modest pay rise would, because that £200 is treated as gone every month, forever, in the affordability sum. If you're close to the figure you need, reducing commitments is often the fastest lever.
Does a joint mortgage let you borrow more?
Usually, yes, two incomes combine, which lifts the ceiling. But two people also bring two sets of commitments and two credit files. A couple with clean finances will borrow considerably more together than either could alone; a couple where one has significant debt or adverse credit can find the joint figure disappointing. It's worth checking both scenarios rather than assuming joint is always better.
25 years matching Essex clients to lenders that treat their income favourably. Full bio →
Online calculators give you a rough ceiling; they don't know your full picture. For a figure you can actually plan around, speak to a broker in Essex.
Get in touchBorrowing questions
How is the maximum mortgage calculated?
What income multiple do lenders use?
Does debt reduce how much I can borrow?
What is a mortgage stress test?
Can I borrow more on a joint mortgage?
Will a bigger deposit let me borrow more?
Your home may be repossessed if you do not keep up repayments on your mortgage.
Bradgate Financial Solutions Ltd is authorised and regulated by the Financial Conduct Authority. FCA Firm Reference Number 672856. This guide is general information, not personal advice.
Reviewed by David Clark, CeMAP, 2026-07-17.