OzCalc
HomeLast reviewed 19 August 2026

Rent affordability calculator

See what share of income a rent takes, using 52 weeks and 12 months — not weekly × 4.

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What the result means

Rent-to-income is a planning ratio. A 30% “housing stress” rule of thumb is a research convention, not a tenancy law or a lender’s serviceability test.

How it is calculated

Percent = annual rent ÷ annual income × 100, with weekly × 52 and monthly × 12
  • Annual rent: Not weekly × 4.

Both sides are annualised with the same 52/12 convention as the rent converter.

Assumptions

  • Estimates only — not tax, legal, credit or financial advice. Check the official source or your contract before relying on a figure.
  • Gross income. No Commonwealth Rent Assistance or housemates.

Worked example

$650 a week on $95,000

A common city rent.

Annual rent
$650 × 52 = $33,800
Share
$33,800 / $95,000 ≈ 35.6%

Above a 30% rule of thumb on gross pay — tighter still after tax.

Gross income overstates what you can spend

This uses pre-tax income. After PAYG, the same rent is a larger share of take-home. Use the salary calculator if you want after-tax income in the denominator.

Weekly rent must be annualised with × 52, not × 4 × 12. A $650 week is $33,800 a year, which is 35.6% of a $95,000 salary before tax and a still larger share of the $74,080 that salary actually keeps.

Questions

Do banks use 30%?

Serviceability tests are more detailed (HEM, existing debts, interest-rate buffers). This page is a household budget ratio.

Should I use take-home pay instead?

Yes if you want a budget you can live on. Convert the salary first, then divide annual rent by that take-home figure. The 30% rule of thumb was written on gross income and will look worse after tax.

Read the background

A guide explains the rules behind this calculation in full, without any inputs to fill in.

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Sources

Home · Last reviewed 19 August 2026

Estimates only. Not tax, legal or financial advice. Check official sources before relying on a figure.

Spotted a mistake? Contact us.