From 1 November 2019 there are some significant changes to all tenancies in the ACT relating to pets, rent increases, tenants making modifications and break lease fees.   We are updating all of our information in line with these changes.  In the meantime, the ACT Government has developed some fact sheets regarding the changes.   

Rent increase processes have not changed in general and most of the information below still applies, however there are now rules about how much a landlord can increase the rent.  We will soon be providing details, you can read what the ACT Government says about these new rules here. GO TO THIS FACTSHEET FOR DETAILS ABOUT THE NEW RULES

The ACT Civil and Administrative Tribunal (ACAT) has updated information in relation to these changes and new applications relating to rent increases that  can be made to the Tribunal, we have an overview here.

If you wish to be kept updated about changes to tenancy law and other renting issues follow us on Facebook, for more detailed information, sign up to our quarterly newsletter

You have been given the correct notice but the increase is way too high…
There is something you can do…
Apply the formula… try negotiation or have it reviewed

Start with the Factsheet Rent Increases and Reductions to see whether your landlord has followed the correct process and is allowed to increase the rent.  If they have, this factsheet helps you work out whether the size of the increase is excessive or not, whether the landlord can increase by that much and gives you a starting point to negotiate if you want a smaller amount, or to have the increase reviewed.

If you were given notice of a rent increase before 1 November 2019 and you believe your increase is excessive the old process applies, you can apply to ACAT for it to be reviewed.  Call TAS for advice if you want to have it reviewed.

A landlord can only increase the rent by more than the amount set by the RTA if:

  • the landlord has been to ACAT and has approval for the amount;
  • the tenancy agreement permits a set increase after 12 months; or
  • the tenant agrees in writing to the increase.

From ACT Government factsheetGenerally, a rental rate increase is presumed to be excessive if it is more than the amount set under the legislation: the ‘prescribed amount.’ There is a formula for calculating the prescribed amount based on the CPI (see below)

The Tribunal has the power to review rental rate increases upon an application by a tenant. If the increase is permitted under the tenancy agreement, then the Tribunal must allow it as long as it is not ‘excessive.’ If a rental increase is less than this prescribed amount, the tenant must satisfy the Tribunal that the increase is excessive. If a rental increase is more than this prescribed amount, the landlord must satisfy the Tribunal that the increase is not excessive…………… a landlord can increase the rent on a property by ten percent more than the increase in the CPI.”

CPI figures

The figures below are sourced from the Consumer Price Index Report, produced quarterly by the Australian Bureau of Statistics.  The figure is not the general CPI figure, it is for rents only.

To find the figures, the complete list of CPI figures for Canberra dwelling rents can be found in ABS CPI Downloads TABLE 9. CPI: Group, Sub-group and Expenditure Class, Index Numbers by Capital City  the worksheet is – Index Numbers: Rents; Canberra.  You then need to scroll down through all of the figures in the index until you reach “rents Canberra” (down to table (1129)

Alternatively, the following link will search Google and display the latest CPI quarter, as well as when the next release is expected: SEARCH »

DecemberFigures for the December Quarter 2019 will be released 29 January 2020.
March 106.3

Explanation of Quarters

Quarters relate to the 3 preceding months, as follows:

 March Quarter  1 January—31 March
 June Quarter  1 April—30 June
 September Quarter  1 July—30 September
 December Quarter  1 October—31 December

NOTE: The figures are released by the ABS at the end of the month after the end of the quarter, eg April figures (in the June quarter) are not available until the end of July.

An Example Calculation  –

The onus of proof is determined by applying the formula in Section 5A:  The prescribed amount is the amount worked as follows: PI + PI/10

PI means the percentage increase in the index number over the period since the last rental rate increase or since the beginning of the residential tenancy agreement (whichever is later)

NOTE – THIS EXAMPLE IS OUT OF DATE AND SOON TO BE UPDATED    Your tenancy agreement started in April 2015 at a rent of $450/week. At the end of April 2016, you received notice of a rent increase to take effect at the end of June 2016.

The most recent CPI figure available when you receive the notice is for the March 2016 quarter.  Because you have not had an increase  you compare the March 2016 CPI figure (99.9) to the figure at the start of your tenancy, in April 2015 (100.3).

The change is actually a decrease.  As there is no increase in the CPI, if you challenged it the Tribunal the landlord or agent must be able to convince the Tribunal why it should be permitted.

To demonstrate the formula being used where there has been an increase in the CPI the example below uses previous CPI figures:

The most recent CPI figure available when you receive the notice is for the December 2010 quarter.  Because the increase is after 12 months, you compare the December 2010 CPI figure (202.1) to the figure 12 months earlier, in December 2009 (192.9).

 Calculate the difference in CPI figures:

202.1 – 192.9 = 9.2

 Express the difference as a % of the initial CPI:

(9.2 ÷ 192.9) x 100 = 4.76%

 Apply this to the current rent:

(4.76 ÷ 100) x $400 = $19.04

 Work out 20% of that increase:(for new increases this is 10%)

(20 ÷ 100) x $19.04 = $3.80.

 Add both dollar amounts together:

$19.04 + $3.80 = $22.84

 If the proposed increase is more than $22.84 (or the new rent is more than $422.84) the landlord or agent must be able to convince the Tribunal why it should be permitted. The formula increase is a useful starting point for negotiations.

Note that the Tribunal must also consider the issues listed in section 68 such as rent for comparable premises and the state of repair of the property.

Rent Increase Calculator

We have an Excel Rent Increase Calculator that you can use to double check your calculations – rent-increase-calculator

Please note: If you are having trouble viewing this page in Internet Explorer, try turning on Compatibility View. Alternatively, you can download this page as a PDF file: Rent Increases – Is my Increase Excessive



Tenants’ Union ACT publishes this website as a free service to the public. Please note that the information on this site is only relevant to renters in the ACT.

This website provides information about the law designed to help users understand their legal rights and obligations. However legal information is not the same as legal advice (the application of law to an individual's specific circumstances). Although we make all efforts to ensure our information is accurate and useful, we recommend you consult the Tenants Advice Service for advice specific to your circumstances. You are also free to consult an independent solicitor for a second opinion.

Please note that this website is NOT intended to be used as a substitute for specific legal advice or opinions and the transmission of this information is NOT intended to create a solicitor-client relationship between the Tenants’ Union ACT and members of the public.

Tenants’ Union ACT makes no representations as to accuracy, completeness, currency, suitability, or validity of any information on this site and will not be liable for any errors, omissions, or losses, injuries, or damages arising from its display or use.  Please also note when the page was last updated, as the law may have changed.