What you can borrow
Most calculators multiply your salary and stop. Lenders don’t. This one shows you both numbers, and which of them is holding you back.
Household income multiplied by 4.5. This is the figure most comparison sites show you, and the one people plan around.
What your monthly budget supports once a lender subtracts tax, credit commitments and essential spending, then tests the payment at 7.58% rather than the rate you’d actually pay.
A lender works to the lower of the two, so you’re looking at roughly £135,992 — held back by affordability. With your deposit that’s a property budget near £160,992.
Monthly payment at today’s average two-year fix of 5.13%: £741. At the stress rate, where the lender needs you to still cope: £958.
An estimate, not a decision in principle. Every lender models essential spending differently, treats bonus, commission and self-employed income differently, and some will lend above 4.5 times income. Figures checked 28 October 2026. This is information, not advice — a qualified mortgage adviser can tell you what a specific lender would actually do. How the calculator works.