UK Mortgage Affordability Calculator
Calculate how much you can afford to borrow for your property purchase. Get instant results with detailed breakdown and expert guidance.
Maximum Property Value
Estimated Monthly Payment
Income Multiple
Debt-to-Income Ratio
How Affordability is Calculated
Mortgage affordability in the UK is typically calculated using income multiples (usually 4-5 times your annual income) and affordability assessments that consider your monthly outgoings, existing debts, and living expenses.
Lenders also conduct stress tests to check if you could still afford payments if interest rates increased by 3-4%.
Factors That Affect Your Mortgage
Credit Score: A higher credit score can access better rates and higher loan amounts.
Deposit Size: Larger deposits (20%+) typically offer better interest rates and more lender options.
Employment History: Stable employment increases borrowing capacity, whilst contract work may require additional documentation.
Additional Costs to Consider
Stamp Duty: Varies by property value and buyer status (first-time buyers may qualify for exemptions).
Legal Fees: Typically £1,000-£3,000 for conveyancing and surveys.
Moving Costs: Estate agent fees, removal services, and connection charges.
Improving Your Affordability
Increase Your Deposit: Higher deposits reduce the loan-to-value ratio and unlock better rates.
Reduce Monthly Outgoings: Lower existing debts and unnecessary subscriptions.
Consider Joint Applications: Combining incomes with a partner can significantly increase borrowing power.
Frequently Asked Questions
What income multiple can I borrow?
Most UK lenders offer 4-5 times your annual salary, though this can vary based on your circumstances. High earners may access higher multiples, whilst those with dependents or irregular income may be offered less.
How much deposit do I need?
The minimum deposit is typically 5% of the property value, though 10-20% deposits offer access to better rates and more lender choices. First-time buyers may access government schemes with lower deposit requirements.
What counts as monthly outgoings?
This includes rent, utilities, council tax, insurance, food shopping, transport costs, childcare, existing loan repayments, and other regular monthly expenses. Be honest and thorough as lenders will verify this information.
Can I get a mortgage if I’m self-employed?
Yes, but you’ll typically need 2-3 years of accounts or SA302 forms to prove income. Self-employed applicants often face stricter criteria and may need specialist lenders.
How accurate is this calculator?
This calculator provides estimates based on typical lending criteria. Actual offers depend on individual circumstances, credit history, and lender policies. Always speak with a mortgage adviser for personalised advice.
What happens after I know my affordability?
Once you know your budget, get a mortgage agreement in principle (AIP), start property searching within your range, and consider speaking with a qualified mortgage broker for the best deals.