Rent Increases – What Tenants Need to Know in New Zealand
Rent increases can feel stressful, but the Residential Tenancies Act sets clear rules that landlords must follow. When you know those rules, you can quickly spot when something isn’t right — and you can challenge it confidently.
How Often Can Rent Be Increased?
- A landlord can increase rent only once every 12 months.

- This applies to all tenancy types — periodic and fixed‑term.
- The 12‑month period is measured from the date the last increase took effect, not when the notice was sent.
If it has been less than 12 months, the increase is unlawful.
How Much Notice Must Be Given?
Landlords must give 60 days’ written notice of a rent increase.
The notice must clearly state:
- The new rent amount
- The date it takes effect
- That it is a rent increase notice
If any of these are missing, the notice is invalid.
Can Rent Be Increased During a Fixed‑Term Tenancy?
Only if the tenancy agreement explicitly allows it.
If the agreement is silent on rent increases, then:
- No increase can occur during the fixed term, and
- The landlord must wait until the fixed term ends.
Is There a Limit on How Much Rent Can Increase?
There is no legal maximum percentage, but the increase must be:
- Reasonable, and
- In line with market rent for similar properties in the area.
If the increase is far above market rent, you can challenge it.
Challenging an Unreasonable Rent Increase
You can apply to the Tenancy Tribunal for a market rent assessment if:
- The new rent is substantially higher than similar properties, and
- You apply within 12 weeks of the increase taking effect.
If the Tribunal agrees, they can order the rent to be reduced.
Signs the Rent Increase May Be Illegal
A rent increase is likely unlawful if:
- It’s been less than 12 months since the last increase
- You didn’t receive 60 days’ written notice
- The notice doesn’t include the new amount and start date
- The landlord tries to increase rent during a fixed term without a clause allowing it
- The increase appears retaliatory (e.g., after you raised concerns)
What Tenants Can Do
- Ask the landlord for evidence of market rent
- Compare similar listings in your area
- Keep all communication in writing
- Challenge unreasonable increases
- Apply to the Tribunal if needed
Template: Responding to a Rent Increase Notice
Hi [Landlord/Property Manager],
I have received your notice of rent increase dated [date]. Before I proceed, I would like to confirm a few details to ensure the increase complies with the Residential Tenancies Act.
Could you please confirm:
• The date the last rent increase took effect
• That this increase is at least 12 months after the previous one
• That the new rent amount reflects current market rent for similar properties
Once I have this information, I will be able to review the notice properly.
Thank you,
[Your Name]
