Mortgage affordability calculator
Mortgage Affordability Calculator
Enter your salary and deposit to see how much you could borrow for a mortgage, what your monthly payments would be and how affordable it really is.Find out how much you can borrow.
Your gross annual salary before tax.
Optional. Add a partner's income to increase your borrowing power.
Partner's salary is included in the combined income calculation.
The amount you have saved to put towards the property.
The expected annual mortgage interest rate.
Max you can borrow
£157,500Max property price
£207,500Monthly payment
£921Deposit %
£24%Affordability gauge
Based on an estimated net monthly income of £2,188 (75% of combined salary)
Your ratio: 42.09% of net monthly income goes to your mortgage
Lenders typically allow you to borrow 4 to 4.5 times your combined annual salary. This calculator uses a 4.5× multiplier. Your actual offer may differ based on credit score, existing debts and lender policy.
Thinking about a mortgage?
If you're looking to take the next step, these are some of the things people compare alongside their affordability figure. Looking at your options early can help you spot anything that might affect what a lender offers.
Speak to a mortgage broker
Whole-of-market brokers compare deals from dozens of lenders in one go. They can often find products you wouldn't see directly, and their advice is usually free to you — lenders pay the fee.
Compare brokers
Compare remortgage deals
If you already have a mortgage, a remortgage could cut your rate or release equity. Comparison sites let you see fixed, tracker and discount deals side by side.
Compare remortgages
Boost your deposit
A larger deposit can unlock better rates and improve your affordability. High-interest savings accounts and Lifetime ISAs are popular ways to grow a deposit faster.
Compare savings for a deposit
Some links below are sponsored — wagecheck may earn a commission if you take out a product through them, at no extra cost to you. This helps keep the calculators free.
How lenders calculate affordability
Income multiple
Most UK lenders offer between 4 and 4.5 times your combined annual salary. Some may offer more with specialist products.
Deposit size
A larger deposit reduces the loan-to-value ratio, which can unlock better interest rates and make your application more attractive.
Outgoings & debts
Lenders assess your monthly commitments — credit cards, loans, childcare — and calculate a stress-tested payment to ensure you can still afford repayments if rates rise.
Credit score
A strong credit history gives you access to the best deals. Missed payments or a thin credit file may limit your options or reduce how much you can borrow.
Frequently asked questions
How much can I borrow for a mortgage in the UK?
Most UK lenders will offer you between 4 and 4.5 times your combined annual salary. Some lenders may offer more through specialist products, but a typical mortgage on a £50,000 deposit and £35,000 salary would allow you to borrow around £157,500, giving a maximum property price of £207,500.
What is a good mortgage affordability ratio?
A ratio below 30% of your net monthly income is considered safe and comfortable. Between 30% and 40% is a stretch but manageable for many borrowers. Above 40% is generally considered risky as it leaves little room for unexpected expenses or rate increases.
Does my partner's salary count towards mortgage affordability?
Yes. If you apply for a joint mortgage, both salaries are combined and multiplied by the lender's income multiple. Even if your partner is not on the mortgage, some lenders may consider household income if it supports the application.
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View →Important note
This calculator provides an estimate only. Actual mortgage offers depend on your credit score, lender criteria, existing debts and other factors. Always consult a mortgage adviser before making financial decisions.