Mortgage Affordability Calculator 2026/27
Most UK lenders offer about 4.5 times annual income, so £50,000 earnings typically supports £225,000 borrowing and £70,000 about £315,000, before deposit. That cap reflects the FCA loan to income limit. Enter income, deposit and monthly debts below to estimate maximum borrowing and repayment.
Figures verified against HMRC SDLT rates on .
Written by James HartleyCIMA
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Assumed mortgage rate for repayment estimate
Results
Affordability estimate
Maximum property price
£225,000
Maximum loan £225,000 plus deposit £0
- Total income£50,000
- Income multiple4.5x
- Maximum loan£225,000
- Estimated monthly repayment£1,250.62
This is an estimate of the maximum a typical lender may offer. Your actual offer depends on a full affordability and credit assessment.
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| Annual income | At 4.0x | At 4.5x | At 5.0x |
|---|---|---|---|
| £25,000 | £100,000 | £112,500 | £125,000 |
| £35,000 | £140,000 | £157,500 | £175,000 |
| £50,000 | £200,000 | £225,000 | £250,000 |
| £70,000 (joint) | £280,000 | £315,000 | £350,000 |
| £100,000 (joint) | £400,000 | £450,000 | £500,000 |
How it is calculated
- Add together incomes. Add together the gross annual income of all applicants.
- Apply the income multiple. Multiply the total by the lender's income multiple, usually about 4.5.
- Adjust for debts. Reduce the figure to account for existing monthly debts and commitments.
- Add your deposit. Add your cash deposit to the maximum loan to get the property price you can aim for.
- Check affordability. Check the monthly repayment is comfortable against the lender's affordability and stress test.
Once you know your maximum loan, use our mortgage calculator for the full repayment breakdown, check stamp duty on your target price, and see how your deposit affects loan to value. Compare gross income with UK salary after tax and budget for council tax as a running cost of ownership.
Frequently asked questions
How much can I borrow for a mortgage?+
Why is 4.5 times income the usual limit?+
Does my deposit change how much I can borrow?+
How do existing debts affect my mortgage?+
Can I borrow more than 4.5 times my income?+
What is the affordability stress test?+
Does a joint application help?+
Is this figure guaranteed?+
What deposit do I need?+
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Official Rates Used
This calculator uses official HMRC rates for 2026/27. View the current rates at GOV.UK:
Rates last verified:
Disclaimer: This calculator provides estimates based on standard HMRC rates for 2026/27. Results may vary based on individual circumstances. This is not financial advice. Always consult a qualified accountant or CIMA-qualified financial adviser for personal tax matters.