UK Mortgage Affordability Calculator

Determine how much property you can afford in the UK based on your income, expenses, and current mortgage lending criteria.

Important Note: This calculator provides estimates based on typical UK lending criteria. Actual mortgage offers will depend on lender-specific criteria, your credit score, and other individual factors. Always consult with a mortgage advisor for personalized advice.

Your Financial Details

Your gross annual salary before tax
Leave as 0 if applying alone
Additional savings that could be used if needed
Credit cards, loans, car finance, etc.
Food, utilities, travel, childcare, etc.
Based on Experian score ranges
Current average UK mortgage rate
Select if you plan to use a UK government scheme

About UK Mortgage Affordability

How UK Mortgage Affordability Works

UK mortgage lenders typically assess affordability based on:

  • Income Multiple: Most lenders cap mortgage amounts at 4.5 times your annual income, though some may go up to 5-5.5x for high earners.
  • Affordability Assessment: Lenders analyze your income against existing debts and estimated living expenses.
  • Deposit Size: Larger deposits (10%+ of property value) typically secure better interest rates.
  • Credit Score: A good credit history is essential for mortgage approval and better rates.

Stress Testing

Lenders also "stress test" your ability to repay if interest rates increase by typically 3% above the standard variable rate. This ensures you can still afford repayments if rates rise.

UK Government Schemes

  • Help to Buy: Equity Loan: The government lends first-time buyers up to 20% (40% in London) of the cost of a new-build home. You need a 5% deposit, and the loan is interest-free for the first five years.
  • Shared Ownership: Buy a share (25-75%) of a property and pay rent on the remainder, with the option to increase your share over time ("staircasing").
  • First Homes Scheme: Discounted homes for first-time buyers and key workers at 30-50% below market value.
  • Right to Buy: Council tenants can buy their home at a discount.
  • Lifetime ISA: Save up to £4,000 per year towards your first home and receive a 25% government bonus (up to £1,000 per year).

Additional Costs to Budget For

Remember to budget for additional costs like Stamp Duty Land Tax (SDLT), solicitor fees, survey fees, and moving expenses.

Frequently Asked Questions

Most UK lenders will offer 4 to 4.5 times your annual income, though some may go up to 5-5.5x for higher earners with strong credit. For joint applications, both incomes are typically combined. Your actual offer depends on credit score, deposit size, and existing debts.

The minimum deposit is typically 5% of the property value, but 10-20% deposits get better interest rates. First-time buyers can use Help to Buy schemes which require only 5% deposit. A larger deposit means lower monthly payments and more mortgage options.

Lenders assess affordability by looking at your income, regular expenses, existing debts, and dependents. They also \"stress test\" whether you could afford payments if interest rates rose by 3%. This determines the maximum they'll lend, regardless of the income multiple calculation.

UK schemes include Help to Buy (equity loan up to 20%, 40% in London), Shared Ownership (buy 25-75% of a property), First Homes (30-50% discount), and Lifetime ISA (25% government bonus on savings). Each has different eligibility criteria and property value limits.

A higher credit score typically means access to better interest rates and higher income multiples (up to 5x vs 3-4x for poor credit). Lenders view good credit as lower risk. Check your credit report before applying and address any issues to improve your borrowing power.