Rent increases

You can apply about a rent increase dispute under the Residential Tenancies Act 1997.

The types of orders ACAT can make about a rent increase are:

  • allowing the increase applied for, or a different increase that ACAT considers just
  • disallowing the increase
  • disallowing part of the increase.

When to apply

A lessor must apply to ACAT for approval of a rent increase when:

  • a rent increase is more than the prescribed amount
  • the tenant does not agree to the increase
  • the residential tenancy agreement does not allow the increase.

A tenant can apply to ACAT for review of a proposed rental rate increase. An application must be made not less than two weeks before the day the rent increase starts.

What is the prescribed amount for a rent increase?

The prescribed amount is based on the rents component of the Consumer Price Index (CPI) for Canberra.

The CPI figures are published every quarter on the Australian Bureau of Statistics website.

The prescribed amount is 110% of the percentage increase in CPI for rents. That is, a lessor can increase the rent on a property by 10% more than the increase in the CPI.

To calculate the prescribed amount:

  • go to the ABS website to look up the latest quarterly CPI Report for rent in the ACT
  • calculate the percentage increase (PI) in the ‘index number’ over the period since the last rental rate increase
  • add PI to PI divided by 10 (PI + (PI/10)) to give the prescribed amount.

How to apply

To apply:

Urgent applications

If your application is urgent, you need to lodge an online application for interim or other orders form or printable application for interim or other orders form [PDF 56KB] at the same time as you lodge your other form.

We will take your request for urgency into account when determining the next steps in the case.

What to expect after an application is made

ACAT will let you know next steps. Usually we will:

  • give a copy of the application to the parties
  • send a notice to the parties about the scheduled date, time and location for a conference.

Before the conference, it is useful if the lessor gives to the tenant/s and ACAT a document that sets out how the rent increase was calculated.

Resolving the dispute

You will have the opportunity at a conference to talk to the other party and an ACAT Member. If an agreement is reached, we will make orders about the agreement and send a copy to the parties.

If you do not reach an agreement, the matter will progress to a hearing. We will provide directions about how to prepare for the hearing.

After a hearing, an ACAT Member will make orders about the outcome or decision.

Consent orders are made in some cases, where all the parties agree to the order that is made. Consent orders are usually made at a conference.

More information

Find out about:

rental increases (see the excessive rental increases fact sheet [Word 75KB] or part 5 the Residential Tenancies Act 1997)

Glossary and terms

Glossary and terms

ACT Civil and Administrative TribunalA tribunal established under the ACT Civil and Administrative Tribunal Act 2008. It may also be referred to as ACAT or Tribunal.

Adjourn (or adjournment)To suspend or postpone a preliminary conference, mediation or hearing and reschedule it for a future date.

Administrative reviewACAT has jurisdiction to review some administrative decisions made by the ACT Government. Find out about Review of ACT Government decisions.

Alternative dispute resolution (ADR)Also known as dispute resolution. This is a way of resolving disputes without a formal hearing. It may involve a preliminary conference or mediation. ADR is used to help parties resolve cases by agreement.

AnorMeans ‘and another’. This term is generally used to name parties to proceedings when there is more than one applicant or respondent.

Appeal TribunalA tribunal constituted under section 81 of the ACT Civil and Administrative Tribunal 2008 to review a decision of the tribunal (not all ACAT decisions are appealable at ACAT – you may need to go to the Supreme Court).

AppellantThe individual or company that appeals an ACAT decision.

ApplicantThe individual or company that brings a case to ACAT, usually by making an application.

Authorising lawsA law that says an application (including referrals) may be made to ACAT. An authorising law may also set out the powers ACAT has in a case. Also see ‘jurisdiction’.

Calling a witnessA party or their representative will ‘call a witness’ at an ACAT hearing when they ask a witness to give evidence.

CaseAlso known as a matter, dispute, application or referral. Cases come to ACAT when ACAT has jurisdiction (power) to make a decision.

Cross-examinationThe process of asking a witness questions to test or check the evidence that the witness has given to ACAT.

Defined benefitsare the following benefits (see section 33 of the MAI Act):

  1. income replacement benefits;
  2. treatment and care benefits;
  3. quality of life benefits;
  4. death benefits;
  5. funeral benefits.

Deliver a decisionAlso ‘handing down a decision’. This is giving a decision about an ACAT case. It may be done verbally or in writing (or both).

DirectionsInstructions that set out what each party must do (and when), often to prepare a case for hearing.

Directions hearingA short hearing where an ACAT Member or Registrar decides how to manage a case and what needs to be done before a hearing. Find out about directions hearings.

Ex parte orderAn order made by ACAT where one or more parties were not present.

Expert reportA written report from an expert that may be used as evidence.

Expert witnessA person with specialised knowledge based on their training, study or experience. An expert can give evidence at a hearing. Find out more about witness statements.

Final directions hearingSometimes ACAT will hold a final directions hearing prior to the final hearing of an application. The purpose is to make sure the case is ready to go to a hearing and give the parties a chance to ask questions about the hearing process.

Handed upGiving documents to an ACAT Member or Registrar in a hearing.

In chambersWhen ACAT considers something without holding a hearing.

Joined party (joined/joinder)A party who was not originally a party to the dispute but has later been added to the case.

JurisdictionACAT’s authority (power) to deal with, hear and decide applications (cases).

LeaveIf someone asks for leave, they are usually asking for permission to do something.

List (or listing)A schedule (or list) of cases to be heard at ACAT each day.

Listing noticeA letter or written document from ACAT that sets out when a conference, mediation or hearing is scheduled at ACAT.

MAI ActMotor Accident Injuries Act 2019 (ACT).

MediationA private meeting where parties discuss ways to resolve their dispute, with the help of an impartial mediator (who is also an ACAT Member or Registrar). It is held under section 35 of the ACT Civil and Administrative Tribunal Act 2008.

Non-publication and/or non-disclosure orderAlso called a ‘suppression order’. It is an order that requires certain information not to be published or disclosed. It is made under section 39 of the ACT Civil and Administrative Tribunal Act 2008. Find out about public hearings and confidentiality.

Notice to partiesA letter sent to the parties in a case that sets out the time, date and location for an ACAT conference, mediation or hearing.

Opening statementUsually means a statement made at the beginning of a hearing to outline the key points in the case. Sometimes parties are asked to give an opening statement at a mediation or preliminary conference.

Originating applicationAn application that starts an ACAT case.

Party or partiesAn individual or company directly involved in an ACAT case, for example an applicant or respondent. Find out how to identify and name parties.

Preliminary conferenceA private meeting where parties discuss ways to resolve their dispute with the help of an ACAT Member or Registrar. See section 33 of the ACT Civil and Administrative Tribunal Act 2008. ACAT has different types of preliminary conferences.

RegistryThe administrative section of ACAT that accepts documents lodged by parties, handles enquiries and provides support for case management.

Relevant insurerfor a motor accident, means the insurer under the Motor Accident Injuries Act 2019 (see section 34) of the motor vehicle considered to be at fault for the motor accident in the ACT.

RepresentativeA person who represents or advocates for an individual or company at a conference, mediation or hearing at ACAT. For example, a legal practitioner or an attorney appointed under a general power of attorney.

Reserved decisionWhen an ACAT Member or Registrar reserves a decision (at the end of a hearing), this means they will give their decision later, either verbally or in writing (sometimes both).

RespondentThe party (or parties) against whom orders or relief is sought.

Serve/serviceA person who can give evidence at a hearing. Find out about witness statements.

Short service orderAn order that authorises a shorter time for service (than the time otherwise required).

Significant occupational impact (SOI)Significant impact on an injured person’s ability to undertake employment.

Statement of reasonsA document that explains why ACAT made an order in a case. It sets out the law relied on by an ACAT Member or Registrar and explains how the law was applied to the facts of the case. You can request a written statement of reasons within 14 days after an order is made. Find out about statement of reasons.

StayAn order for a particular action (or decision) to be put on hold or suspended for a period of time.

SubmissionA document that sets out your side of a case or dispute and the relevant law. It is presented to ACAT either in writing, verbally or both. Find out about submissions.

SubpoenaRequires a person to appear at ACAT to give evidence or provide documents (or both). Find out about subpoenas.

Substituted service orderAn order that says how a party is to be served with an application or other documents related to the proceedings. In a civil dispute or a rental dispute, an applicant will need to consider asking for a substituted service order if they do not have a physical address for the respondent. Find out about lodging and serving documents.

WitnessA person who can give evidence at a hearing. Find out about witness statements.