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Rent increase calculator (Australia)
A rent increase notice can throw your whole budget out. The first thing to work out is what the new rent means each week, each fortnight and over a year, and how much extra you'll need from each pay. Our free rent increase calculator does the maths. Below it you'll find a plain-English summary of the notice rules in NSW, Victoria and Queensland, with links to the official pages, plus some ideas for fitting the new amount into your budget.
The starting figures in the calculator are a made-up example: $550 a week going to $590. That's an extra $40 a week, about 7.3%, or $2,080 over a year. Swap in your own numbers. The results stay in your browser.
How the maths works
The calculator turns any type of increase into a new weekly figure, then scales it to other periods. Here's how it's worked out:
- Percentage increase: current rent × (1 + percentage ÷ 100). For example (made-up numbers), 5% on $500 a week gives $525.
- Dollar increase: current rent + the extra dollars a week.
- Per fortnight: weekly × 2. Per year: weekly × 52.
- Per pay: the weekly increase ÷ 7 × the days in your pay period. Monthly is treated as an average month of about 30.4 days.
If your rent is quoted monthly, divide it by 4.345 for a rough weekly figure, or ask your agent for the weekly amount on the notice.
Rent increase notice rules by state
The rules depend on your state and your type of agreement. This is a short summary of what the official pages said when we checked them on 27 October 2026. Always read the official page for your situation, because there are exceptions and the rules can change.
| State | How often | Minimum written notice | Official source |
|---|---|---|---|
| NSW | Not within the first 12 months of an agreement, then at least 12 months between increases (some fixed-term agreements of under 2 years that began before 13 December 2024 follow different rules) | 60 days, stating the new rent and the date it starts | NSW Government: rent increases |
| VIC | In most cases no more than once every 12 months | 90 days, using the official Notice of rent increase form (this changed from 60 days on 25 November 2025) | Consumer Affairs Victoria: rent increases |
| QLD | At least 12 months since the current rent became payable | 2 months for general tenancies (4 weeks for rooming accommodation) | RTA Queensland: rent increases |
Every state has extra detail. For example, there are rules about fixed-term agreements that set out increases in advance, and ways to challenge an increase you think is excessive. If you're in another state or territory, check your local tenancy authority. If you're not sure a notice is valid, contact the official body for your state before you pay a different amount.
Check your notice before you budget
Before you rework your budget, take a few minutes to check the notice itself:
- Dates: count the days from when you received the notice to the date the new rent starts, and compare that with the minimum for your state.
- Timing: find the date of your last increase or the start of your agreement.
- The amount: check whether the notice gives the new rent, the increase, or both. Then enter it in the calculator.
- Form: in Victoria, check it's on the official form.
- Keep a copy: save the notice with your lease and rent records.
Fitting a higher rent into your budget
Once you know the extra per pay, you can plan for it. Here are a few ideas that don't rely on anything changing overnight:
- Start setting it aside now. If the new rent starts in two months, putting the extra amount aside from today builds a small buffer and gives you a trial run.
- Look at your flexible categories first. Groceries, eating out, subscriptions and transport are usually easier to adjust than fixed bills.
- Re-check your bills. Compare energy plans, phone and internet, and insurance renewals.
- Talk to your household. If you share, agree how the increase is split. A made-up example: three housemates sharing a $90 a week increase evenly would each pay $30 more.
- Get free help if it's too much. The National Debt Helpline (1800 007 007) offers free, confidential financial counselling.
Track rent, notices and bond in one place
A rent record makes it easy to see when the last increase was, what you've paid and what's coming up. You can keep one in a notebook or spreadsheet, or use our rent and bond tracker guide to set one up. For the rest of your money around rent day, see our budget guide for renters.
A rent payment record with a running total, lease and bond details, inspections and notices, repair requests with days waiting, and a dashboard showing what is due next. It works offline in your browser, your data stays on your device, and there is no bank login. Secure checkout via Payhip.
See the Rent & Bond app · A$19
Frequently asked questions
How do I calculate a rent increase percentage?
Take the new rent minus the old rent, divide by the old rent and multiply by 100. For example (made-up numbers), going from $500 to $530 a week is a $30 increase, which is 6%.
How much notice is needed for a rent increase?
It depends on your state. When we checked on 27 October 2026, NSW required 60 days written notice, Victoria 90 days on the official form, and Queensland 2 months for general tenancies. See the official pages for your state: NSW, VIC, QLD.
How often can rent go up?
In NSW, VIC and QLD the general rule is no more than once every 12 months, with some exceptions for certain agreements. Check your state tenancy authority for the details that apply to you.
Does the calculator save my numbers?
No. The calculator runs in your browser and nothing is sent or stored.
What if I can't afford the increase?
Contact your state tenancy authority about your options, and call the National Debt Helpline on 1800 007 007 for free financial counselling.
General information only, not legal or financial advice. Tenancy rules are summarised from official state pages (linked above) as checked on 27 October 2026 and can change. Examples use made-up numbers.