Housing tool
Mortgage Affordability Calculator UK
Use this UK mortgage affordability calculator to estimate how much you may be able to borrow, what property price that could support, and how different borrowing levels could feel based on your income, deposit, and monthly costs.
Include student loan repayments
Turn this on if you want them included in the estimate.
Balanced borrowing estimate
£163,360
An indicative borrowing range that may feel more practical for some households.
Balanced property price estimate
£193,360
Includes the deposit entered above.
Summary
More comfortable range
Affordability score: 73/100
Based on the figures entered, this borrowing level may feel more comfortable for some households.
Safer range
£165,504
About £711/month
Balanced range
£193,360
About £857/month
Stretch range
£221,216
About £1,003/month
What the estimate suggests
Estimated monthly take-home
£2,673
Estimated after tax, National Insurance, pension, and optional student loan.
Balanced housing share
32.1%
This shows how much of monthly take-home pay may go toward the estimated mortgage payment.
Extra deposit to reach the next range
£27,856
A larger deposit may improve affordability by reducing borrowing and monthly payments.
Why deposit size matters
A bigger deposit can lower the amount borrowed, reduce monthly payments, and sometimes improve the range of mortgage options available.
How to use this mortgage affordability result
Mortgage affordability is not just about lender income multiples. A borrowing amount can look possible on paper while still feeling tight once debt, bills, and everyday living costs are included.
The balanced range is often a useful reference point when comparing affordability.
If your target property sits above the balanced range, two common ways to improve affordability are increasing your deposit or reducing other monthly commitments.
Mortgage affordability calculator UK FAQs
How much can I borrow for a mortgage in the UK?
Many lenders use income multiples, often around 4 to 4.5 times income as a general guide, but affordability also depends on debt, bills, deposit size, and interest rates.
Is the maximum borrowing amount always a good target?
Not usually. Borrowing at the upper end may leave less room for savings, repairs, and rising household costs.
Does a larger deposit help?
Yes. A larger deposit reduces the amount you need to borrow and may improve both monthly affordability and lender options.
Next step
Check the rest of your numbers
A useful next step is often checking your take-home pay or comparing mortgage affordability with renting affordability.
Related housing pages
Rent Affordability Calculator UK
Compare buying affordability with renting affordability.
Take-Home Pay Calculator UK
Check your estimated monthly income before comparing borrowing levels.
Monthly Budget Planner
See whether a mortgage payment fits into your broader budget.
How Much Rent Can I Afford in the UK?
Read the housing guide for another angle on affordability.
Important
This tool provides general estimates and educational guidance only. It does not account for your full personal circumstances and should not be treated as financial advice or a personal recommendation.