Calculator
Mortgage affordability calculator
Estimate how much you could borrow, the house price that puts you in, and what the monthly repayment would look like. Built on typical UK lender income multiples.
Loans, car finance, credit cards, childcare.
You could afford up to
£242,500
£202,500 borrowing + £40,000 deposit (16% deposit)
84% loan-to-value · 16% deposit
- Monthly repayment
- £1,026
- Share of income
- 27%
- Household income
- £45,000
Comfortable — repayments under 30% of income
Breakdown
- Borrowing (4.5x household income)
- £202,500
- Deposit
- £40,000
- Maximum purchase price
- £242,500
- Loan-to-value
- 84%
- Monthly repayment at 4.5% over 30 years
- £1,026
- First payment — interest
- £759
- First payment — capital repaid
- £267
- Total interest over the full term
- £166,874
- Stress test at 7.5%
- £1,416/mo (38% of income)
Indicative only and not financial advice or a lending decision. Lenders assess credit history, employment type, outgoings and deposit source, and stress-test repayments at a higher rate.
Affordability questions
Most UK lenders advance between 4 and 4.5 times your gross annual income, and up to 5.5 times for higher earners or professional schemes. Regular credit commitments — loans, car finance, credit cards and childcare — reduce the amount, because lenders stress-test whether you could still pay if rates rose.
Your maximum purchase price is the amount you can borrow plus your deposit. A 10% deposit is the usual minimum for mainstream products, and rates improve noticeably at 15%, 20% and 25% deposits. Remember to keep money back for stamp duty, legal fees, a survey and removals.
No. It is an indicative estimate based on typical UK lending multiples, not a credit decision or advice. A lender will assess your credit file, employment type, deposit source and outgoings before making a formal offer. Get a Mortgage in Principle for a figure agents will take seriously.
Letting agents usually want an annual household income of around 30 times the monthly rent, and most budgeting guidance suggests keeping rent under 35% of your take-home pay. A guarantor or rent paid in advance is commonly accepted if you fall short of the income test.