Rent Increase Rules in Australia: Frequency, Notice and Rent Bidding by State

Every Australian jurisdiction limits how often rent can rise, but the interval, notice period and what the limit attaches to differ. Queensland's cap runs per premises, and the Northern Territory's runs every six months, not twelve.

Jurisdiction scope: This page compares how often rent can be increased, the required notice period, and rent-bidding rules across all eight Australian states and territories. It is general legal information, verified 19 July 2026, not legal advice on your own tenancy.

How Often Can Rent Increase?

In six of the eight jurisdictions, New South Wales, Victoria, South Australia, Tasmania, the ACT and Western Australia, rent on an existing tenancy can be increased no more than once every 12 months. New South Wales adds a further limit: an increase cannot happen within the first 12 months of a new tenancy at all, under section 41(1A) of the Residential Tenancies Act 2010 (NSW). South Australia's 12-month rule, under section 55(2)(c) of its Act, applies even to increases the landlord and tenant agree between themselves, not only ones imposed unilaterally. Two jurisdictions depart from the standard 12-month rule, and both do it in ways that matter to anyone budgeting for a long tenancy.

Queensland's Outlier: Per Premises, Not Per Tenancy

Queensland limits a rent increase to once every 12 months, but the limit attaches to the premises, not to the tenancy or the tenant, under section 93(3) of the Residential Tenancies and Rooming Accommodation Act 2008 (Qld), in force since 6 June 2024. That means the 12-month clock does not reset just because a new tenant moves in, or because the property changes owner. If a previous tenant's rent was increased eight months ago, a new tenant moving in cannot have rent increased again until the full 12 months from that earlier increase have passed. This is a meaningfully different protection from the tenant-based 12-month rules used elsewhere, and it is worth checking directly with the Residential Tenancies Authority if you are moving into a Queensland property that has recently changed hands or changed tenants.

The Northern Territory's Outlier: Every Six Months

The Northern Territory allows a rent increase once every six months, not twelve, under section 41(3) of the Residential Tenancies Act 1999 (NT), the shortest interval of any Australian jurisdiction. There is an important qualifier: the right to increase rent during a tenancy must actually be specified in the tenancy agreement itself, under section 41(1). A Northern Territory tenancy agreement that does not include a rent-review clause does not automatically give the landlord a right to increase rent at all during the term; the six-month interval is a ceiling on how often the right can be used, not a guarantee that the right exists.

Rent Increase Frequency and Notice by Jurisdiction

Can a Tenant Challenge a Rent Increase?

Most jurisdictions let a tenant apply to the relevant tribunal to challenge an increase as excessive, though the test and time limit differ. South Australia gives a tenant 90 days to apply to SACAT to challenge an increase as excessive under section 56. The ACT is the most structurally protective: increases are capped by regulation against a CPI-based measure of Canberra rents, and a landlord who wants to increase rent above that cap must first obtain ACAT's approval, rather than the tenant bearing the burden of challenging it after the fact. Other jurisdictions generally allow a tribunal application after the increase is given, assessing factors such as the rent for comparable properties in the area, the condition of the premises, and how long since the last increase.

Rent Bidding: Banned Everywhere, With One Extra Layer in Victoria

Soliciting an offer of rent above the advertised price is now banned in all eight Australian jurisdictions, a genuinely uniform national position reached at different times: New South Wales (section 22A, 3 August 2023), Victoria (section 30F(3), from 2021), Queensland (section 57(3), 6 June 2024), Western Australia (section 27AA(3), penalty up to $10,000, 2024), South Australia (section 52A, 1 September 2023), the ACT (section 11AD, 1 April 2023) and the Northern Territory (2023 Act, 2 January 2024). Two jurisdictions go further and ban accepting an unsolicited higher offer, not just soliciting one. Queensland was first: section 57(3) of the Residential Tenancies and Rooming Accommodation Act 2008 (Qld) has prohibited a person from soliciting, inviting or accepting an offer above the advertised fixed amount since 6 June 2024. Victoria followed on 25 November 2025 with section 30F(4). The contrast is with the Australian Capital Territory, where section 11AD(2) expressly allows a landlord to accept a higher offer the tenant volunteers, so long as the landlord did not solicit it. The ACT sits at the other end: under section 11AD(2), a landlord in the ACT may still accept an unsolicited higher offer, even though soliciting one is banned.

What This Means When You Receive a Rent Increase Notice

Check three things against your jurisdiction's current rules: whether the minimum interval since the last increase has actually passed (remembering Queensland's per-premises rule and the Northern Territory's six-month, agreement-dependent rule), whether the notice gives at least the minimum period, and, in the ACT, whether the new rent exceeds the regulatory cap, in which case the landlord needed ACAT's approval before serving it. If you believe an increase is excessive and your jurisdiction offers a challenge pathway, most tribunals require the application before the increase takes effect or within a short window afterward, so acting promptly matters more than in most other tenancy disputes.

This page provides general legal information about rent increase rules across Australia, verified 19 July 2026. It is not legal advice on your own tenancy or a specific rent increase you have received. For advice, consult a legal practitioner admitted in the relevant Australian state or territory, or your state or territory's tenancy authority or tribunal.

For bond rules, see rental bonds in Australia. For minimum standards a rental property must meet, see minimum rental standards in Australia. For the complete jurisdiction comparison, see the Australia tenant rights hub, or go directly to New South Wales, Victoria, Queensland, Western Australia, South Australia, Tasmania, the ACT or the Northern Territory.