Mortgage Affordability Calculator 2026

Updated May 2026HMRC 2026/27Free · No signup
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Current 2-year fixed avg ~4.5%. 5-year ~4.2%.
About this calculator

Lenders use income multiples (typically 4–5× gross income) as a starting point, then apply an affordability stress test at a minimum rate of 7%. Monthly mortgage repayments must generally not exceed 35–40% of take-home pay.

This calculator applies both methods and returns the lower of the two, giving you a realistic borrowing limit rather than a theoretical maximum.

Result
 
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