Property Affordability Calculator
Estimate the maximum mortgage you could borrow based on income and deposit. Uses standard lender income multiples — actual offers vary by lender.
How Property Affordability Calculator works
Income multiples
Most mainstream lenders will offer 4–4.5× your annual income. Some specialist lenders and products offer up to 5–5.5× income. Joint applications typically use 4× the combined income. These are indicative — actual offers depend on credit score, employment type, debts, and the lender's affordability model.
How debts affect borrowing
Monthly debt commitments (car finance, personal loans, credit card minimum payments) reduce how much a lender will advance. Most lenders will either reduce the income multiple or subtract the annualised debt cost from the income before applying the multiple.
Stress testing
Since 2014, lenders must stress test affordability at a higher rate (typically 3% above the product rate). This means the actual affordable payment at current rates may be higher than the stress test allows. The FCA removed the mandatory stress test rule in August 2022, but most lenders still apply their own.
This is an estimate only
This calculator uses income multiples and is indicative only. A mortgage in principle (MIP/AIP) from a lender or broker uses full credit, income, and expenditure assessment. Consult a qualified mortgage adviser for personalised advice.
Frequently asked questions
How much can I borrow for a mortgage?
Most lenders will offer 4–4.5× your annual income. On a £50,000 salary that is £200,000–£225,000. Some specialist lenders offer 5× income. A joint application uses combined income.
What is the maximum LTV for first-time buyers?
Most lenders offer up to 95% LTV (5% deposit). Some specialist products allow 100% mortgages (e.g., guarantor mortgages). Higher LTV means higher rates and stricter affordability assessment.
Do I need a mortgage adviser?
You are not required to use an adviser, but one can access the whole of market and assess the best deal for your circumstances. This is an estimate only — speak to a qualified mortgage adviser for personalised advice.
Can I get a bigger mortgage with a larger deposit?
A larger deposit increases the maximum property price you can buy (your budget = max borrow + deposit), but it does not change the maximum lend itself, which is based on income. However, lower LTV from a larger deposit means better rates and lower repayments.
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