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    Rent Affordability Calculator

    Find out how much rent you can afford based on your income. See recommended budgets at 30%, 40%, and 50% thresholds.

    Free to use. Runs in your browser.

    The 30% rule says spend no more than 30% of your gross income on rent. Enter your income to see affordable rent at different thresholds.

    The 30% Rule and When to Break It

    The "30% rule" says you should spend no more than 30% of your gross income on rent. It originated from US public housing guidelines in the 1980s and became the default advice worldwide. But it's a guideline, not a law of nature.

    In expensive cities like London, Edinburgh, or Bristol, 30% may be unrealistic. The average London renter spends 35-40% of their income on rent. The question isn't whether you can hit 30%, it's whether your remaining 60-70% comfortably covers everything else: food, transport, bills, savings, and life.

    A better approach: work backwards from your non-negotiable expenses, savings goals, and lifestyle costs. Whatever's left is what you can genuinely afford for rent, regardless of what percentage that represents.

    Affordable Rent by Salary

    Annual SalaryMonthly Gross30% (Recommended)40% (Stretched)
    £25,000£2,083£625/mo£833/mo
    £30,000£2,500£750/mo£1,000/mo
    £40,000£3,333£1,000/mo£1,333/mo
    £50,000£4,167£1,250/mo£1,667/mo
    £60,000£5,000£1,500/mo£2,000/mo

    What this means for you: These figures use gross (pre-tax) income. Using net income gives a more realistic picture of what you can actually afford. A £40,000 salary yields roughly £2,660 net monthly, 30% of that is £798, not £1,000.

    Hidden Costs Renters Forget

    Rent isn't just rent. Budget for these before signing a lease, they can add £200-500/month on top of the headline figure:

    Council Tax

    £100-250/month depending on band and area. Often not included in rent.

    Energy bills

    £80-200/month for gas and electric. Older properties with poor insulation cost more.

    Contents insurance

    £10-25/month. Landlord's insurance doesn't cover your belongings.

    Broadband

    £25-50/month. Check what's available before signing, some areas have limited options.

    Deposit (upfront)

    5 weeks' rent max in England. Plus first month's rent, that's 9 weeks' rent before you move in.

    Transport

    Cheaper rent further out can be offset by £150+/month in commuting costs. Factor in the total.

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    How to use this tool

    1

    Enter your income (monthly or annual)

    2

    Optionally add monthly debt payments

    3

    Click Calculate to see affordable rent ranges

    Common uses

    • Working out how much rent you can afford on your salary
    • Checking whether a specific rental property fits your budget
    • Comparing affordability at different income levels
    • Factoring debt repayments into your housing budget
    • Planning a move to a new city with different rental costs

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    Frequently Asked Questions

    What is the 30% rent rule?
    It says you should spend no more than 30% of your gross monthly income on rent. It originated from 1980s US public housing guidelines. It's a useful starting point, but not a hard rule, your personal circumstances matter more than a single percentage.
    Should I use gross or net income?
    Traditionally the 30% rule uses gross (pre-tax) income. But using net income gives a more realistic picture of what you can actually afford. On a £40,000 salary, 30% of gross is £1,000/month but 30% of net is roughly £798/month.
    What if I have debts?
    Enter your monthly debt payments (student loans, credit cards, car finance) and the calculator adjusts your affordable rent downward. Debt reduces what's genuinely available for housing, regardless of the percentage rule.
    Is 40% of income on rent too much?
    In expensive cities like London, 35-40% is common and sometimes unavoidable. It becomes problematic if it leaves you unable to save or cover emergencies. The real test is whether the remaining 60% comfortably covers all your other essential costs.
    What percentage of income goes to rent in London?
    The average London renter spends 35-40% of gross income on rent. In central London boroughs, it can exceed 50%. Outside London, 25-30% is more typical. These averages mask huge variation by borough, flat size, and household income.
    Should I include bills in the 30%?
    The traditional 30% rule covers rent only, not utilities. If you include council tax, gas, electric, water, and internet, aim for 35-40% total housing costs. Some modern financial advice uses a '50/30/20' framework: 50% on needs (including all housing), 30% on wants, 20% on savings.
    How do landlords assess affordability?
    Most UK landlords require tenants to earn at least 2.5x the annual rent. For a £1,200/month property (£14,400/year), you'd need to earn at least £36,000. Some agents require 3x, which is even stricter than the 30% rule.
    Can I afford rent if I'm self-employed?
    Yes, but landlords may require 2-3 years of accounts or tax returns plus a larger deposit. Your affordability calculation is the same, use your average monthly income after business expenses and tax, not your gross revenue.
    What if I share with flatmates?
    Calculate based on your individual share of the rent, not the total. If a £1,500/month flat is split 3 ways, your cost is £500/month. Compare that to your individual income. Sharing is the most effective way to reduce housing costs in expensive areas.
    Should I stretch to afford a better area?
    Consider commute costs. A cheaper flat further out might cost more once you factor in transport. A £200/month rent saving that adds a £150/month commute only saves £50, and costs you hours of travel time.
    What's 'rent burdened'?
    The US Department of Housing defines 'rent burdened' as spending over 30% of income on housing, and 'severely rent burdened' as over 50%. In UK terms, spending over 30% is stretched, over 40% is strained, and over 50% leaves very little for everything else.
    How do I reduce rent costs?
    Share with flatmates, move slightly further from the centre, negotiate at lease renewal (especially in slower markets), consider council/housing association properties, or look for inclusive-bills flats that reduce overall housing spend.
    Is the 30% rule used in Canada and Australia?
    Yes. In Canada, the CRA and CMHC use a similar 30% 'shelter-cost-to-income' ratio. In Australia, rental stress is defined by the ATO and housing agencies as paying more than 30% of income. Switch the currency selector to CAD or AUD to plan in Canadian or Australian dollars.

    Results are for general informational purposes only and should be checked before use. They are not professional advice. See our Disclaimer and Terms of Service.