Rent increases in Australian Capital Territory
Key rules at a glance
| Frequency | Once every 12 months since 10 December 2024Source: Residential Tenancies Act 1997 (ACT) |
|---|---|
| Notice | 8 weeks (56 days) written notice — the shortest fixed notice period among the jurisdictionsSource: Residential Tenancies Act 1997 (ACT) |
| Cap | Increase capped at the rents component of Canberra CPI plus 10%; above this needs the tenant's written agreement or an ACAT orderSource: Residential Tenancies Act 1997 (ACT) |
| Example | If Canberra rental CPI rose 2%, the maximum increase is 2.2% (2% + 10% of 2%)Source: ACT Government |
How it works in Australian Capital Territory
The Australian Capital Territory is unique: it legislates a hard cap on rent increases. Rent can rise once every 12 months with eight weeks' notice, and the increase cannot exceed the rents component of Canberra's CPI plus 10% — so if rental CPI rose 2%, the cap is 2.2%. A landlord can only exceed the prescribed amount if the tenant agrees in writing or ACAT makes an order. This is the only fixed statutory rent cap in any Australian jurisdiction.
ACT Revenue Office / Access CanberraFrequently asked questions
Is there a rent increase cap in the ACT?▾
Yes — uniquely in Australia. Increases cannot exceed the rents component of Canberra CPI plus 10%, unless the tenant agrees in writing or ACAT approves a higher amount.
How is the ACT rent cap calculated?▾
Take the rents component of Canberra CPI and add 10% of it. For example, if rental CPI rose 2%, the maximum increase is 2.2%.
How often and with what notice can ACT rent rise?▾
Once every 12 months, with eight weeks' (56 days') written notice — the shortest fixed notice period among the jurisdictions.
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Last reviewed 9 June 2026
Figures reflect the 2025–26 financial year and tenancy laws in force as at mid-2026. State rules change often — always confirm the current figure with the linked authority before you rely on it.
This is general information for Australian landlords, not legal, financial, or tax advice. PropAlly is a software provider, not a law firm, accountant, or licensed adviser. Verify your obligations with the relevant state authority or a qualified professional.