Money · Rent affordability check
Rent Affordability Checker
Enter your take-home pay and monthly rent to get a ratio verdict — with thresholds adjusted for London, major cities, and the rest of the UK.
What this means
This tool calculates your rent-to-income ratio and compares it against location-adjusted affordability thresholds to give a green, amber, or red verdict.
Formula used
Rent affordability ratio = (per-person monthly rent ÷ monthly take-home pay) × 100. Thresholds: London 35% / 50%, major cities 30% / 45%, elsewhere 30% / 40%.
Worked example
Take-home £2,200/month. Rent £750/month. Ratio: 34%. In a major city that's amber — above the 30% guideline but below the stress threshold. In London it would be green.
Common questions
What is the 30% rule?
The standard guideline is that rent should not exceed 30% of gross income. On take-home pay the effective threshold is slightly higher. This tool uses take-home pay and adjusts thresholds by location, since rents in London and major cities run significantly higher.
Should I include bills in my rent figure?
If your rent includes bills, your actual outgoing on housing is the rent figure. If bills are on top, your true housing cost is rent plus bills. The tool flags which you've entered so you can interpret the result accordingly.
Plain-English summary
Enter your figures to see what share of your take-home pay goes on rent and whether that's affordable for where you live.
This section translates the result into a short, direct takeaway rather than leaving the page at a bare number.
Read the guide
How much of your income should rent cost — and what the 30% rule actually means
The 30% rule is a starting point, not a law. Here's what it means, where it comes from, and why location and bills change the calculation.
Read the guideRelated instruments
Keep going
Percentage Change Engine
Work out the percentage increase or decrease between two values with a clear result and worked explanation.
Open verdictVAT Engine
Add or remove VAT from a price with clear totals, tax breakdown, and net versus gross context.
Open verdictSubscription Shame Index
Find out how much your subscriptions are quietly costing you in money and attention.
Open verdict