How much can I borrow?

Enter what your household earns and the deposit you have. The calculator applies the multiple lenders use, adds your deposit and shows the price you can look at and what the loan would cost a month.

Usual ceiling4.5 × income
Regulator’s limit15% of a lender’s loans above 4.5 ×
Smallest deposit5% of the price

Your figures

Every applicant’s salary, plus regular bonus or overtime a lender will count.

Most lenders stop at 4.5 times income; 5 or more needs a higher income and a clean credit file.

How the figure is worked out

Lenders start from a multiple of income and then check that the payments fit your outgoings.

Income times a multiple
The Bank of England limits how many loans a lender can make above 4.5 times income, so 4.5 is where most offers stop. Higher earners with large deposits are sometimes offered 5 or 5.5 times.
Plus the deposit
The loan and the deposit together are the price. £60,000 of income × 4.5 is £270,000; with £30,000 saved that is a £300,000 home at 90% loan to value.
Then the affordability check
The lender also tests that the payments fit after your bills, childcare, credit commitments and a rise in rates. Debts and dependants pull the offer below the multiple; the figure here is the ceiling, not a promise.
Source and rulesBank of England Financial Policy Committee: loan-to-income flow limitRule set 2026.1, last checked on 18 October 2026.The figures are illustrations from the inputs you give and the rules shown, not financial, tax or legal advice. Check them with a mortgage adviser or conveyancer before you rely on them. Your home may be repossessed if you do not keep up repayments on a mortgage secured on it.

Questions people ask

Does the deposit change how much I can borrow?

Not directly: the loan is set by income. A bigger deposit raises the price you can pay and lowers the loan to value, which unlocks cheaper rates. A deposit under 5% of the price rules most lenders out.

What counts as income?

Basic salary in full. Lenders usually count half to all of regular bonus, commission and overtime, and self-employed income from two years of accounts. Benefits and maintenance are taken by some lenders and not others.

Can a developer’s deposit contribution help?

It adds to your deposit, so it raises the price in reach and may improve the rate band. Lenders cap incentives (often at 5% of the price) and take them off the value they lend against, so tell your broker what is on offer.

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