Rent Increase Rules SA
South Australia requires 60 days of written notice and limits increases to once every 12 months, with no increase permitted in the first year of the tenancy. The rules come from sections 55 and 56 of the Residential Tenancies Act 1995 (SA).
This page is general information only and does not constitute legal advice. Tenancy legislation changes regularly - confirm the current requirements with Consumer and Business Services (CBS) before serving a notice.
SA rent increase rules at a glance
Every figure below comes from the same verified rule set propkt applies when generating notices.
| Rule | South Australia |
|---|---|
| Minimum notice period | 60 days written notice before the increase takes effect. |
| Minimum time between increases | Once every 12 months. |
| What the 12-month clock runs from | The date the last increase took effect (or the tenancy start date if there has been no increase yet). |
| First increase | No increase within the first 12 months of the tenancy. |
| Fixed-term agreements | Only if the agreement includes a clause allowing rent increases. |
| Prescribed form | No mandatory prescribed form - a written notice meeting the section 55 content requirements is what counts. |
| Tenant challenge | Application to SACAT within 90 days of the notice. |
| Serving the notice | By post allow an extra 7 business days for delivery; by email 1 business day (email requires the tenant's consent). In person takes effect immediately. |
| Regulator | Consumer and Business Services (CBS). |
Verified against the sources below, August 2026.
Worked example
An Adelaide landlord wants the new rent to start on 1 December on a periodic agreement.
Frequently asked questions
How much notice must a SA landlord give?
60 days in writing, setting out the amount of the increase and the day it takes effect.
How soon can rent be increased again in SA?
Any later increase cannot take effect within 12 months of the previous increase, and rent cannot be increased during the first 12 months of the tenancy.
Can rent be increased during a fixed term in South Australia?
Not unless the agreement specifically allows for an increase. Section 55(2)(b) makes the clause a precondition.
Can a tenant challenge a rent increase in SA?
Yes. A tenant may apply to SACAT within 90 days of receiving the notice, and SACAT can cap the rent if the increase is excessive.
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