Rent increases in Australian Capital Territory
Key rules at a glance
| Frequency | Once every 12 months, counted from the start of the agreement or the last increaseSource: Residential Tenancies Act 1997 (ACT) s 64AAA |
|---|---|
| Notice | 8 weeks (56 days) written noticeSource: Residential Tenancies Act 1997 (ACT) sch 1 cl 38 |
| Threshold | An increase above 110% of the rise in the rents part of Canberra CPI needs the tenant's written agreement or an ACAT orderSource: Residential Tenancies Act 1997 (ACT) s 64B; Residential Tenancies Regulation 1998 (ACT) s 5A |
| Example | If Canberra rental CPI rose 2%, an increase above 2.2% (2% plus 10% of 2%) needs the tenant's written agreement or ACAT's approvalSource: ACT Government |
How it works in Australian Capital Territory
The Australian Capital Territory is unique: it legislates a threshold on rent increases. Rent can rise once every 12 months with 8 weeks' notice, and an increase above 110% of the rise in the rents part of Canberra's CPI needs the tenant's written agreement or an ACAT order — so if rental CPI rose 2%, the threshold is 2.2%. This is the only statutory rent-increase threshold in any Australian jurisdiction.
ACT GovernmentFrequently asked questions
Is there a rent increase threshold in the ACT?▾
Yes, and it's unique in Australia. An increase above 110% of the rise in the rents part of Canberra CPI needs the tenant's written agreement or ACAT's approval; a smaller increase doesn't.
How is the ACT rent increase threshold worked out?▾
Take the rise in the rents part of Canberra CPI and add 10% of it. For example, if rental CPI rose 2%, an increase above 2.2% needs the tenant's written agreement or ACAT's approval.
How often and with what notice can ACT rent rise?▾
Once every 12 months, with 8 weeks' (56 days) written notice.
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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.