Skip to main content
LetComplianceLandlord & property management software

Finance and yieldFree, no account needed

Rent affordability

Check if an applicant can afford the rent against the standard UK referencing rule, gross income of 30× the monthly rent (2.5× annual). Shows the income needed, the guarantor threshold (36×), and the max rent an income qualifies for.

Recognised by HMRC for Making Tax Digital

From £7.99 a month, LetCompliance takes applications and orders referencing. Get started

The UK 30× monthly rent referencing rule + the 36× guarantor threshold.Runs in your browserA guide, not legal or tax advice

CalculatorUpdates as you type

Not legal or tax advice

The tenancy

The applicant

Affordable: passes the 30× referencing rule

The applicant earns £38,000: that's 2.6× the annual rent, clearing the standard 2.5× (30× monthly) threshold of £36,000.

The numbers

Annual rent
£14,400
Income needed: applicant (30× monthly / 2.5× annual)
£36,000
Income needed: guarantor (36× monthly / 3× annual)
£43,200
Applicant income as a multiple of annual rent
2.6×
Share of applicant income spent on rent
37.9%
Max monthly rent this income qualifies for
£1,267
  • The standard UK referencing rule is a gross annual income of at least 30× the monthly rent (≈ 2.5× the annual rent); guarantors are usually asked for 36× (3× annual rent).
  • Some agents use an affordability cap instead (e.g. rent ≤ 40% of net income). Thresholds vary by referencing provider: confirm the exact rule before relying on it.
  • Right to Rent, deposit and Tenant Fees Act rules still apply regardless of affordability: affordability is one screen among several.
  • Guidance only, not financial or referencing advice. Use an accredited referencing provider for a formal decision.

Next: Landlord? Applicants apply through one link with income and a guarantor, and you order referencing on the ones you like.

Get started

Background

How rent affordability and tenant referencing work in the UK

The single rule that decides most UK tenant referencing outcomes is the income multiple: an applicant’s gross annual income should be at least 30 times the monthly rent, equivalently, 2.5 times the annual rent. On a £1,200/month tenancy (£14,400/year) that means an applicant needs roughly £36,000 of gross annual income to pass on income alone. This calculator checks any applicant against that rule in seconds and shows exactly how far over or under they fall.

Where an applicant’s income falls short, the standard fix is a UK-based guarantor. Referencing providers typically require a guarantor to earn more than the tenant would have needed, usually 36 times the monthly rent (3 times the annual rent), because the guarantor is underwriting the whole rent on top of their own outgoings. For the same £1,200 tenancy that is about £43,200 of guarantor income. The calculator surfaces both thresholds so you know immediately whether an applicant passes outright, passes with a guarantor, or fails.

Some agents and referencing firms use an affordability cap instead of (or alongside) the multiple, for example, rent should be no more than 35–40% of net take-home pay. The two approaches usually agree, but the 30× gross rule is the most widely used first screen because it is simple, fast and based on a figure (gross salary) that is easy to evidence with payslips or an employment reference. Whichever rule a provider uses, run the number before you spend money on a full reference.

Affordability is only one of several screens. A complete UK tenant check also covers Right to Rent (a legal requirement in England before the tenancy starts), identity and previous-landlord references, a credit check for adverse history, and the deposit and holding-deposit caps under the Tenant Fees Act 2019. A tenant can clear affordability and still fail on Right to Rent or credit: treat this calculator as the first filter, not the whole decision.

For landlords, running affordability up front saves the cost and delay of a failed reference. Capture the applicant’s income at enquiry, screen it against the 30× rule, and only progress applicants who pass (or who have a qualifying guarantor) to a paid reference and Right to Rent check. LetCompliance’s passwordless application links capture income and Right to Rent details up front, so you can screen before you commit: the same first-filter logic this calculator runs.

Step by step

How to check if a tenant can afford the rent (UK referencing rule)

Check an applicant against the UK 30× monthly rent income rule, see the guarantor threshold, and find the maximum rent their income qualifies for.

  1. 1

    Enter the monthly rent

    Use the advertised monthly rent for the property; the calculator works out the annual figure and the income thresholds.

  2. 2

    Enter the applicant’s gross annual income

    Use gross (pre-tax) income. For a joint tenancy, add all co-applicants’ incomes together.

  3. 3

    Add a guarantor’s income if relevant

    If the applicant is short, enter a guarantor’s gross income: guarantors usually need 36× the monthly rent.

  4. 4

    Read the verdict and thresholds

    The calculator shows pass / pass-with-guarantor / fail, the exact income required, and the maximum rent the applicant qualifies for.

  5. 5

    Progress only applicants who pass

    Use it as a first filter before paying for a full reference, then complete Right to Rent, credit and previous-landlord checks.

Questions

Frequently asked questions

How much income do you need to rent in the UK?

The standard referencing rule is a gross annual income of at least 30× the monthly rent, which is the same as 2.5× the annual rent. For £1,200/month rent that is about £36,000 a year. Joint applicants can combine their incomes to meet the threshold.

What is the 30× rent rule?

It means a tenant’s gross (pre-tax) annual income should be at least 30 times the monthly rent. It is the most common first screen UK letting agents and referencing providers use to decide whether an applicant can afford a tenancy without a guarantor.

How much does a guarantor need to earn?

A UK rent guarantor is typically required to earn at least 36× the monthly rent (3× the annual rent), more than the tenant would need, because the guarantor is covering the full rent on top of their own commitments. For £1,200/month rent that is roughly £43,200 a year.

What percentage of income should rent be?

On the 30× rule, rent works out at about 40% of gross income (annual rent ÷ gross income = 12 ÷ 30). Some referencing providers instead cap rent at 35–40% of net take-home pay, which is a stricter test because it is measured after tax. The gross multiple is the more common first screen because gross salary is simple to evidence with payslips.

Does passing affordability mean a tenant is approved?

No. Affordability is one screen among several. A full UK tenant check also covers Right to Rent (a legal requirement in England), identity and previous-landlord references, a credit check, and the Tenant Fees Act deposit caps. An applicant can pass affordability and still fail another check.

How much rent can I afford on a £30,000 salary?

On the standard 30 times rule a £30,000 gross salary supports rent of up to about £1,000 a month (£30,000 divided by 30). £40,000 supports about £1,333 a month and £50,000 about £1,667. If the rent is higher than your salary supports, the usual routes are a co-applicant or a guarantor.

Can joint applicants combine their income for referencing?

Yes. For a joint tenancy the referencing provider adds all named applicants’ gross incomes together and tests the total against 30× the monthly rent. Two applicants each earning £22,000 have £44,000 combined, comfortably clearing the £36,000 needed for a £1,200 tenancy. Every adult on the tenancy is normally referenced and is jointly and severally liable for the whole rent.

How is affordability assessed for a self-employed applicant?

Usually on net profit rather than turnover, evidenced by SA302 tax calculations and tax year overviews or an accountant’s letter. Providers commonly average the last two or three years, or take the lower of the latest year and the average, then apply the same 30 times rule. A short trading history often means a guarantor is requested. Since 1 May 2026 rent paid before the tenancy is entered into is a prohibited payment, so taking months of rent up front before the tenancy starts is not an option.

Can I refuse a tenant on housing benefit or Universal Credit?

Not because they receive benefits. Since 1 May 2026 the Renters’ Rights Act 2025 makes it unlawful to refuse to let, or to put someone off enquiring, viewing or applying, because they receive benefits, and a "No DSS" term has no effect. Similar rules protect families with children. The council can impose a penalty of up to £7,000. You can still check whether the rent is affordable on the applicant’s actual income, including benefit income.

For your website

Put this calculator on your own site

Free for letting agents, brokers and landlord blogs. It sizes itself to your page, and because it is served from LetCompliance, every correction and each new tax year reaches your site without you touching it. The one condition is the credit line under it.

Show the embed code
<iframe src="https://letcompliance.com/embed/rent-affordability-calculator" title="Rent affordability" width="100%" height="1200" loading="lazy" style="border:0;max-width:760px;display:block"></iframe>
<p style="margin:6px 0 0;font:13px/1.5 system-ui,sans-serif">Rent affordability by <a href="https://letcompliance.com/tools/rent-affordability-calculator">LetCompliance</a></p>
<script>addEventListener("message",function(e){if(e.origin!=="https://letcompliance.com"||!e.data||e.data.type!=="letcompliance-embed-height")return;document.querySelectorAll('iframe[src^="https://letcompliance.com/embed/"]').forEach(function(f){if(f.contentWindow===e.source)f.style.height=e.data.height+"px"})});</script>
Paste into any page that accepts HTML.

Every calculator you can embed

Prefer to watch?

See how it works

A screen tour of the whole let, end to end. No sign-up, no sales call. Just press play.

  • Track rent and arrears, and draft the notice to get a property back
  • Open the tenant portal (no password) and get the tax figures ready
  • Add a property and watch the 0–100 compliance score appear
Get started
letcompliance.com

More on this topic

All 45 tools