Rent Affordability Calculator

Renting can be stressful when prices move faster than wages. This UK rent affordability calculator gives you a practical rent range from your income, take-home pay, bills and existing debts. It combines three views: a 30% gross income guide, a common letting-agent income multiple, and a simple monthly cash-flow check.

How to use this rent affordability calculator

Enter your gross annual income, monthly take-home pay, bills excluding rent, monthly debt payments, and the rent you want to check. The calculator shows a suggested maximum rent and how your target rent compares with your income. If you need a take-home estimate first, use our take-home pay calculator. If you split rent with another person, the split bill calculator can help divide rent, bills and deposits fairly. If renting delays your deposit plan, try the savings goal calculator.

The method explained in plain English

The 30% rule says rent should ideally be no more than 30% of gross monthly income. Some UK letting checks use a similar income multiple, often annual income divided by 30 to estimate the maximum monthly rent. This is not a law, and landlords can set their own criteria. The calculator also checks your budget after bills and debt payments, because passing a headline income test does not mean the rent will feel comfortable.

MoneyHelper explains rent affordability as a budgeting question, not only an income question. Council tax, energy, travel, broadband, food and debt payments can change what is realistic. This calculator therefore uses the lowest of the three guides as the suggested maximum, so the result is deliberately cautious.

Worked example

Suppose you earn £42,000 a year before tax and take home about £2,800 a month. You spend £650 a month on bills excluding rent and £150 on debt payments. The 30% gross income guide gives £1,050 a month. The 30 times income rule gives £1,400 a month. The budget check leaves £2,000 after bills and debts, then treats 60% of that as a cautious rent limit, or £1,200. The suggested maximum is therefore £1,050 because it is the lowest of the three.

Common mistakes people make

A common mistake is looking only at salary and ignoring take-home pay. Student loan repayments, pension contributions and tax can make a big difference. Another mistake is forgetting moving costs, deposits, furniture and the first month's rent. Our first home cost guide is buyer-focused, but the same habit of listing upfront costs helps renters too. It is also worth reading our mortgage affordability guide if you are comparing renting with buying.

Related calculators

Start with the take-home pay calculator if you need your net monthly income. Use the split bill calculator for house shares, the savings goal calculator for deposits and moving costs, and the debt-to-income calculator to see how debt payments affect your wider affordability.