How Much Notice for Rent Increase NZ: The 60-Day Rule
60 Calendar Days — Not Working Days
Under Section 24 of the Residential Tenancies Act 1986, a landlord must give at least 60 calendar days' written notice before a rent increase takes effect. The 60-day count includes weekends and public holidays — it is calendar days, not working days.
The notice period starts on the day after the tenant is deemed to have received the notice, and the increase cannot take effect until the full 60 days have passed.
Service Buffer Days Change the Real Deadline
The 60 days start counting from when the tenant is deemed to have received the notice — not from when you send it. Section 136 of the RTA adds service buffer days depending on your delivery method:
| Delivery method | Deemed received |
|---|---|
| Hand delivery | Same day |
| Email sent before 5 PM on a working day, if the tenancy agreement allows electronic service | Same day |
| Email sent after 5 PM or on a non-working day, if the tenancy agreement allows electronic service | Next working day |
| Letterbox or attached to door | 2 working days later |
| Posted | 4 working days later |
Working days are Monday to Friday, excluding public holidays and provincial anniversary days.
A Practical Example
You want a rent increase to take effect on 1 March 2027. Counting back:
- 60 calendar days before 1 March = 31 December 2026
- The tenant must be deemed to have received the notice by 30 December 2026 (the day before the 60-day count starts)
If you are posting the notice, add 4 working days. Posting on Tuesday 22 December 2026 gives deemed receipt on Wednesday 30 December: the four working days are 23, 24, 29, and 30 December, with Christmas Day (25 December) and the observed Boxing Day holiday (28 December) excluded. That is just in time.
The margin is tight. Posting a day or two later would push deemed receipt past 30 December, making a 1 March effective date impossible.
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Boarding House Tenancies Are Different
Under Section 24(1)(c) of the RTA, boarding house tenancies require 28 days' notice for a rent increase (not 60 days). The 12-month frequency rule still applies — this shorter notice period is the only exception.
Common Timing Mistakes
The most common errors that invalidate rent increase notices:
- Forgetting service buffer days: serving by post on a Thursday and assuming receipt on Monday, when a public holiday falls in between
- Counting from the send date: the 60 days start from deemed receipt, not dispatch
- Mixing up working days and calendar days: service buffer uses working days, but the 60-day notice period uses calendar days
- Ignoring provincial anniversary days: each region has its own anniversary day that counts as a non-working day for service calculations
A notice that gives even one day less than the required 60 calendar days (measured from deemed receipt) is invalid. The tenant can ignore it.
Getting the Dates Right
The calendar arithmetic is the part most likely to trip you up, especially around Easter, the Christmas–New Year block, or Matariki. The Rent Increases in New Zealand guide includes a service buffer worksheet that walks you through the exact calculation for each delivery method, with worked examples across public holiday periods.
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