Use our free Mortgage Affordability Calculator UK to estimate how much you could potentially borrow based on your income, deposit, monthly commitments and overall financial situation. Whether you're a first-time buyer, moving home or remortgaging, this calculator provides a quick estimate before speaking to a lender or mortgage adviser.
✔ Borrowing estimate • ✔ Income & deposit • ✔ Monthly costs • ✔ UK calculator
Most UK mortgage providers assess affordability using income multiples, regular expenses, outstanding debts and credit history. While every lender has slightly different criteria, our calculator can help you understand your borrowing potential and prepare for the next step.
This calculator provides an estimate only and does not consider every factor used by mortgage lenders. Individual lenders may also assess employment history, credit score, dependants, future interest rate stress tests and other financial commitments.
In the UK, lenders typically offer between 4 and 5.5 times your annual income, although some applicants may qualify for higher multiples depending on their circumstances. Factors such as your deposit, monthly expenses, age and credit profile all influence how much you can borrow.
For example:
These are only estimates. Individual lenders may offer more or less depending on affordability checks and current lending conditions.
Mortgage providers consider much more than your annual salary. They want to ensure you can comfortably manage repayments both now and in the future, even if interest rates rise.
Your salary is one of the most important factors. Lenders will usually include:
Existing financial obligations reduce the amount you may be able to borrow. These include:
A larger deposit usually means lower risk for the lender and may provide access to better mortgage deals and lower interest rates.
Common deposit levels are:
A good credit history demonstrates responsible borrowing and can improve your chances of approval. Missed payments, defaults or County Court Judgments (CCJs) may reduce borrowing potential.
Most lenders have maximum age limits at the end of the mortgage term. This can affect how long you can borrow for and therefore impact affordability.
Someone earning £40,000 per year may typically borrow between £160,000 and £220,000 depending on their expenses and credit profile.
With a £50,000 income, many borrowers could access mortgage amounts ranging from approximately £200,000 to £275,000.
Couples with a combined income of £60,000 could potentially borrow between £240,000 and £330,000, although affordability checks remain important.
Your deposit determines the loan-to-value ratio (LTV), which is the percentage of the property's value that you borrow.
| Deposit | Loan-to-Value |
|---|---|
| 5% | 95% LTV |
| 10% | 90% LTV |
| 15% | 85% LTV |
| 20% | 80% LTV |
| 25% | 75% LTV |
Generally, larger deposits mean lower interest rates and potentially lower monthly repayments.
Loan-to-value (LTV) is one of the most important factors in mortgage pricing. Lower LTV mortgages generally qualify for lower interest rates because the lender takes on less risk. Increasing your deposit from 5% to 10% or 15% can significantly improve the mortgage products available to you.
Most UK lenders begin by applying an income multiple, often between 4 and 5.5 times your annual household income. They then assess your existing financial commitments, credit history, deposit size, employment status, age and the affordability of monthly repayments under different interest rate scenarios.
This calculator uses a simplified affordability model to provide a realistic estimate, but every lender has its own lending policy and affordability assessment.
Yes, it may still be possible to obtain a mortgage with bad credit. Specialist lenders exist for borrowers who have experienced financial difficulties in the past. However, interest rates may be higher and larger deposits are often required.
Improving your credit score before applying can increase your options and potentially reduce borrowing costs.
First-time buyers often have access to schemes and products designed to help them get onto the property ladder. Lenders will still assess affordability carefully, taking into account:
Saving a larger deposit can significantly improve affordability and access to better mortgage deals.
| Income Multiple | Common Usage |
|---|---|
| 4× | More cautious lending |
| 4.5× | Most common UK affordability estimate |
| 5× | Higher-income applicants |
| 5.5× | Some specialist lenders |
If you are remortgaging, lenders may reassess your affordability using your current income, monthly commitments and outstanding mortgage balance. This calculator can also provide an estimate for remortgage affordability.
Many lenders may offer between £160,000 and £220,000, although affordability checks and expenses will affect the final amount.
Typical borrowing ranges from £200,000 to £275,000 depending on individual circumstances.
Yes. Many lenders offer 95% loan-to-value mortgages, although rates may be higher compared with larger deposits.
No. Mortgage providers consider income, debts, monthly commitments, credit history and overall affordability.
A mortgage affordability calculator provides an estimate only. Actual offers vary between lenders and depend on your individual financial circumstances.
Yes. Many lenders offer mortgages to self-employed applicants, although they may ask for two or more years of accounts or tax calculations to verify income.
Yes. Joint mortgage applications usually combine both applicants' incomes, which may increase borrowing potential, subject to affordability checks.
A larger deposit may improve your chances of approval, reduce your loan-to-value ratio and provide access to lower interest rates.
Our Mortgage Affordability Calculator UK helps estimate how much you could borrow for a property purchase. By considering income, expenses, deposit size and other important factors, you can gain a clearer understanding of your budget before speaking with a lender or mortgage adviser.
Remember that every mortgage application is assessed individually, and borrowing limits can vary significantly between providers. Use this calculator as a helpful guide and always seek professional advice before making financial decisions.
Information on this page is based on publicly available guidance, official government publications, and commonly accepted financial calculation methods.
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Last Updated: August 2026