Rent increase notice NZ: how to get it right every time
How to give a rent increase notice in New Zealand
To legally increase rent in New Zealand, you must give your tenant a written notice at least 60 days before the new rent takes effect. The notice must state the current rent, the new rent amount, and the date the increase starts. It must be signed and delivered to the tenant — either in person, by post, or by email if the tenant has agreed to receive notices electronically. The increase cannot take effect any sooner than 12 months after the last rent increase (or the start of the tenancy, if rent has never been increased). These rules come from the Residential Tenancies Act 1986 (RTA), sections 24 and 25, and apply to every residential tenancy in the country.
If you skip any of these steps — or get the timing wrong — the increase can be challenged and overturned at the Tenancy Tribunal. This guide covers everything you need to know to get it right.
Legal requirements under the Residential Tenancies Act 1986
The RTA sets out specific rules for rent increases. Here is what the law requires:
Written notice is mandatory
A verbal conversation about raising the rent does not count. The notice must be in writing. There is no prescribed form under the Act, but Tenancy Services provides a free template that covers all the required information. Using the official template is the safest option because it ensures you do not leave anything out.
What the notice must include
Your rent increase notice should contain:
- The address of the rental property
- The tenant's full name
- The current rent amount (weekly)
- The new rent amount (weekly)
- The date the increase takes effect
- The landlord's name and signature
- The date the notice is given
Missing any of these details gives the tenant grounds to dispute the increase.
The 12-month rule
Rent can only be increased once every 12 months. The 12-month clock starts from either:
- The date the tenancy began (if rent has never been increased), or
- The date the last rent increase took effect
This applies regardless of whether the tenancy is periodic or fixed-term. If you try to increase rent before 12 months have passed, the increase is invalid and the tenant does not have to pay it. For a deeper dive into the frequency rules, see our guide on how to increase rent legally in NZ.
Notice periods: periodic vs fixed-term tenancies
The notice period depends on what type of tenancy agreement you have. If you are unsure about the difference, our tenancy agreement guide covers it in detail.
Periodic tenancies — 60 days' notice
For a periodic (ongoing, no end date) tenancy, you must give the tenant at least 60 days' written notice before the increase takes effect. This is the most common scenario for self-managing landlords in New Zealand.
For example, if you serve notice on 1 June 2026, the earliest the new rent can apply is 31 July 2026 (60 days later). Count the days carefully — if you are even one day short, the tenant can challenge the increase.
Fixed-term tenancies — timing matters
For a fixed-term tenancy, you cannot increase the rent during the fixed term unless the tenancy agreement specifically includes a rent review clause allowing it. If there is no such clause, you must wait until the fixed term expires.
If you do have a rent review clause, the same 60-day notice and 12-month rules apply. Many landlords on fixed-term agreements time their rent increase to coincide with the renewal or rollover to periodic.
When does the notice period start?
The 60-day period starts the day after the tenant receives the notice — not the day you send it. If you post the notice, allow extra days for delivery. Email delivery only counts if the tenant has agreed (in the tenancy agreement or separately) to receive notices by email.
How much can you increase the rent?
There is no legal cap on rent increases in New Zealand. The RTA does not set a maximum percentage or dollar amount. However, the tenant has the right to challenge any increase they believe is substantially above market rent by applying to the Tenancy Tribunal within 21 days of receiving the notice.
Researching market rent
Before deciding on an amount, do your homework. Check current listings for comparable properties in your area — same number of bedrooms, similar condition, similar location. Good sources include:
- Trade Me Property — filter by suburb, bedrooms, and property type to see what similar rentals are advertising for
- Tenancy Services market rent data — tenancy.govt.nz publishes median rent data by region
- MBIE rental bond data — shows rents on recently lodged bonds, giving you a picture of what tenants are actually paying (not just asking rents)
If you are managing properties in Auckland, Wellington, or Christchurch, rents can vary significantly even between neighbouring suburbs, so make sure you are comparing like with like.
Keep a record of your research
If the tenant does challenge the increase, you will need to show the Tenancy Tribunal that your new rent is reasonable. Keep screenshots, printouts, or notes from your market research. This is where having a system that tracks your rental data really helps — more on that below.
Tenant rights: challenging a rent increase
Tenants are not powerless when it comes to rent increases. Under the RTA, a tenant can:
- Apply to the Tenancy Tribunal within 21 days of receiving the notice, asking for the increase to be reviewed
- The Tribunal will look at the market rent for comparable properties and decide whether the increase is excessive
- If the Tribunal finds the increase is substantially above market rent, it can set a lower amount
The tenant must still pay the increased rent from the effective date unless the Tribunal orders otherwise. If the Tribunal reduces the amount, the landlord must refund any overpayment.
This is why market research matters. If your increase is in line with what comparable properties are renting for, the Tribunal is unlikely to intervene.
How to serve the notice correctly
Getting the notice written correctly is only half the job. You also need to serve it properly. Under the RTA, acceptable methods of service include:
- In person — hand it directly to the tenant (most reliable)
- By post — send to the tenant's address; allow extra time for delivery
- By email — only if the tenant has agreed to receive notices electronically
- Left at the property — in a mailbox or attached to the door, though this is harder to prove
Whatever method you use, keep proof of delivery. If you hand it over in person, note the date and ask the tenant to acknowledge receipt. If you email it, keep the sent email. If you post it, use tracked delivery.
Common mistakes that void a rent increase
These are the errors we see most often from self-managing landlords:
1. Not enough notice
The 60-day minimum is strict. If the notice arrives even one day late, the increase is not valid. Count your days carefully, and if posting, add buffer time.
2. Increasing too soon
The 12-month rule trips up landlords who set rent low at the start of a tenancy, intending to increase it shortly after. You cannot increase rent within the first 12 months, regardless of what the tenant agreed to verbally.
3. No written notice
Telling your tenant in a text message or over the phone is not sufficient. The notice must be a formal written document, and it must include all the required details.
4. Missing the fixed-term clause
If your tenancy agreement is fixed-term and does not include a rent review clause, you cannot increase rent during the term — full stop.
5. Not keeping records
If the tenant challenges the increase and you have no evidence of your market research or proof of when you served the notice, you are at a disadvantage at the Tribunal.
6. Retaliatory increases
Increasing rent in response to a tenant exercising their legal rights — such as requesting maintenance or contacting Tenancy Services — can be treated as a retaliatory action. The Tribunal takes this seriously.
How Keel helps you manage rent increases
If you are self-managing a rental property (or several), keeping track of when you last increased rent, what the market is doing, and when to send notices can be a headache. This is where Keel comes in.
Rent tracking and history
Keel keeps a complete history of every rent change for each property. You can see at a glance when the last increase took effect, what the previous amount was, and when you are eligible to increase again under the 12-month rule.
Automated reminders
Set it and forget it. Keel can remind you when a rent review is due, so you never miss the window or accidentally serve notice too early.
Ask Skip
Not sure how much to increase by, or whether your notice is correctly worded? Skip, Keel's AI assistant, can walk you through the process step by step — in plain English, tailored to your specific situation.
Everything in one place
Your tenancy agreements, rent records, maintenance history, and financial tracking all live in one dashboard. When it is time to increase rent, you have the context you need without digging through emails and spreadsheets.
Keel starts at $9/month and comes with a 30-day free trial — no credit card required. If you are managing your own rental, it is worth a look. Start your free trial here.
Step-by-step checklist: issuing a rent increase notice
Here is the process from start to finish:
- Check the date — confirm that at least 12 months have passed since the last increase (or the start of the tenancy)
- Research market rent — compare your property against similar listings in the same area
- Decide on the new amount — keep it in line with market rent to reduce the risk of a Tribunal challenge
- Write the notice — use the Tenancy Services template or include all required details (property address, tenant name, current rent, new rent, effective date, your signature)
- Count 60 days forward — set the effective date at least 60 days from the date the tenant will receive the notice
- Serve the notice — deliver it in person, by post, or by email (if agreed), and keep proof
- Update your records — record the new rent amount, effective date, and a copy of the notice in your files (or in Keel)
- Wait for the effective date — the tenant pays the current rent until then
Frequently asked questions
How much notice do I need to give for a rent increase in NZ?
You must give at least 60 days' written notice before the rent increase takes effect. This applies to both periodic and fixed-term tenancies (where a rent review clause exists). The 60-day period runs from the day the tenant receives the notice.
Can I increase rent during a fixed-term tenancy?
Only if the tenancy agreement includes a specific rent review clause that allows for increases during the term. Without that clause, you must wait until the fixed term ends. The same 60-day notice and 12-month rules still apply.
Is there a maximum rent increase in New Zealand?
No. There is no legal cap on how much you can increase rent. However, if the tenant believes the new rent is substantially above market rent, they can apply to the Tenancy Tribunal within 21 days to have the increase reviewed.
What happens if I do not give enough notice?
The rent increase is invalid. The tenant can continue paying the current rent and is not obligated to pay the higher amount. You would need to issue a new notice with the correct notice period.
Can I give a rent increase notice by text message?
No. The notice must be a formal written document that includes all the required information — property address, tenant name, current and new rent amounts, effective date, and your signature. A text message does not meet these requirements.
How often can I increase rent in NZ?
Rent can only be increased once every 12 months per tenancy. The 12-month period is measured from the date the last increase took effect (or the start of the tenancy, if rent has never been increased).
Where to go for official guidance
For the definitive rules on rent increases, refer to:
- Tenancy Services — Rent increases
- Residential Tenancies Act 1986, sections 24–25
- Tenancy Tribunal — if you need to understand the dispute process
If you are a self-managing landlord looking for a simpler way to stay on top of rent reviews, compliance, and record-keeping, give Keel a try. The 30-day free trial gives you time to see if it fits how you work — no commitment, no credit card.