ACT Rent increase calculator

ACT Shelter · information tool

Rent increase calculator

Work out the maximum rent increase allowed under the ACT’s CPI-linked formula, while the ACT Government’s own calculator is unavailable.

Your rent and tenancy

Current rent ($)

Paid

Has the rent been increased before during this tenancy?

Yes No, this would be the first increase

Date your tenancy began

Did your current fixed-term agreement start before 10 December 2024, and are you still in that original fixed term?

Yes No / not sure

If yes, the CPI formula below doesn’t apply — your increase is governed by what your tenancy agreement says instead.

The proposed increase

Date landlord gives notice of this increase

Date the increase is proposed to take effect

Proposed new rent ($) — optional

Canberra rents CPI figures

These are worked out automatically from the dates you entered above — you don’t need to look anything up yourself. The right figure for a given date is the one that had most recently been published at that date, which often isn’t the figure for that same calendar month.

Relevant CPI at the date in step 1

Enter a date above

Relevant CPI at the notice date in step 2

Enter a date above

Result

Fill in the fields above to see the maximum allowed increase.

This is general information, not legal advice. It reflects ACT Shelter’s understanding of the Residential Tenancies Act 1997 and Residential Tenancies Regulation 1998, and published ABS data, as at the date below. ACT Shelter is not responsible for decisions made based on this tool. For a definitive answer, or if your landlord disagrees with your figures, contact Legal Aid ACT, or apply to ACAT.