Get a realistic estimate of how much you could borrow, based on your household income and a lending multiple - then see the monthly payment and the total property budget once your deposit is added.
Your finances
£
£
×
£
%
yrs
Estimated property budget
£242,500
Borrow up to £202,500 + your deposit
Total income£45,000
Estimated borrowing£202,500
Plus deposit£40,000
Maximum property price£242,500
Estimated monthly payment£1,026
An estimate only. Real offers depend on a full affordability assessment — credit commitments, spending, dependants and a stress test against higher rates.
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How lenders decide what you can borrow
Most UK lenders start from an income multiple - commonly around 4.5x annual income - then apply an affordability stress test against your actual outgoings, credit commitments and a higher what-if-rates-rise interest rate. Two households on the same salary can be offered very different amounts depending on debts, dependants and spending.
Typical income multiple: 4-4.5x (some lenders stretch to 5-5.5x for higher earners or specific schemes).
Borrowing + deposit = your maximum purchase price.
The monthly payment shown uses a repayment mortgage over your chosen term.
Worked example
Household income 55,000 at 4.5x gives about 247,500 borrowing.
With a 40,000 deposit, that is a budget of about 287,500.
At 4.5% over 30 years the payment on 247,500 is about 1,254/month.
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Frequently asked questions
Is the income multiple a guarantee?
No. It is a starting point. Your actual offer depends on a full affordability assessment including credit commitments, regular spending, dependants and the lender's stress test, so treat the result as an estimate.
Should I borrow the maximum?
Not necessarily. Borrowing less leaves headroom if rates rise or your circumstances change. Always sanity-check the monthly payment against your real budget, not just the maximum a lender will offer.
Report a bug or ask a question about this calculator
Important: BrickCrunch provides general information and estimates only — this is not financial, tax, mortgage or legal advice. Calculations are simplified and your circumstances may differ. UK tax and rate figures are checked against gov.uk (21 June 2026 (2026/27 tax year)) but rates change and errors are possible. Always confirm figures with gov.uk or a qualified professional before making decisions.
