Continue your plan
Useful next calculations
When to use this calculator
- Before buying, renting, refinancing or reviewing a property investment.
- When you want to compare cash flow, tax, yield or ownership costs.
- When you need a fast estimate before speaking to an agent, lender or adviser.
- When you want to see how a rate or price change moves the result.
A realistic Australia planning example
Use these sample inputs as a quick scenario test, then change one variable at a time to compare outcomes.
| Input | Value |
|---|---|
| Annual Income (A$) | A$80,000 |
| Weekly Rent (A$) | A$1,400 |
After entering these figures, review rent-to-income ratio, annual rent and monthly rent together rather than in isolation. Then rerun the tool with one input adjusted.
How to read your results
Rent-to-Income Ratio
The figure produced by this output for the inputs you entered. Change one variable at a time if you want to see what drives it.
Annual Rent
The figure produced by this output for the inputs you entered. Change one variable at a time if you want to see what drives it.
Monthly Rent
The figure produced by this output for the inputs you entered. Change one variable at a time if you want to see what drives it.
Affordable Weekly Rent (30% rule)
The figure produced by this output for the inputs you entered. Change one variable at a time if you want to see what drives it.
Method & assumptionsAuthoritative sources
This calculator applies the standard 30% gross income rule to assess rental affordability. The rent-to-income ratio divides your annual rent by your gross annual income and expresses the result as a percentage. A ratio above 30% is the threshold commonly used by AHURI and housing policymakers to define housing stress. The maximum affordable weekly rent field shows the highest rent that would keep you within the 30% guideline at your stated income level.
The 30% rule is a planning guide, not a strict financial limit. Renters with high incomes can often comfortably afford ratios above 30% given that a smaller share of their income covers essentials beyond rent. Conversely, lower-income households may find even a 25% ratio creates pressure once food, utilities, and transport costs are factored in. Always build a complete monthly budget before committing to a rental, and factor in bond (usually four weeks' rent payable upfront), connection fees, and any ongoing costs such as water usage charges not covered by your landlord.
Common mistakes
- !Using an assumption that is not supported by a current local quote, bill, statement or official source.
- !Treating a generic estimate as a lender, provider, payroll or tax authority decision.
- !Mixing monthly and annual inputs without converting them consistently.
- !Testing only one scenario instead of checking how a cautious assumption changes the result.
What to do next
- Run a second scenario with a cautious assumption so you can see the downside clearly.
- Compare the result with the related calculators below before making a decision.
- Check current local rules, eligibility and provider terms before applying or committing money.
- Keep a record of the assumptions so you can update the estimate when a quote, bill or pay figure changes.
Frequently asked
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