Rent increases in New Zealand: how often, how much notice, and when you can challenge one

The two rules

Frequency: once every 12 months. Rent cannot be increased more often than once every 12 months for the same tenancy.

Notice: 60 days, in writing. A landlord must give at least 60 days’ written notice before an increase takes effect.

For a fixed-term tenancy, rent can only be increased if the tenancy agreement specifically allows it — and even then the 12-month rule and the 60-day notice both still apply.

What makes a rent increase notice valid

• In writing — verbal notice is not valid
• States the new rent amount
• States the date it takes effect, at least 60 days after the notice is given
• Served to the tenant’s address for service, which since 20 March 2025 may be an electronic address if one is listed in the tenancy agreement
• Not less than 12 months after the last increase

Tenancy Services publishes an approved Notice of rent increase form.

If a notice is short of 60 days, or comes less than 12 months after the last one, it is not valid and the increase does not take effect on that date. Raise it in writing rather than simply paying the higher amount — paying it can complicate the position later.

Is the increase fair?

The rules control timing and notice. They do not cap the amount. So the question of whether an increase is reasonable is separate from whether it is lawful.

To assess it, use the MBIE market rent tool, which is built from actual bond lodgement data — not asking prices — and can be filtered by area, property type and number of bedrooms. This is the most reliable rent data available in New Zealand and it is free.

Note that MBIE figures and Trade Me listing figures measure different things: MBIE reflects rents actually agreed and lodged, Trade Me reflects what is being asked. MBIE publishes an explainer on the difference.

Also compare like with like — same bedroom count, same property type, same condition, same suburb. A three-bedroom house is not a comparator for a three-bedroom townhouse.

Challenging an increase

If the new rent is substantially above market rent for comparable properties, you can apply to the Tenancy Tribunal for an order reducing it.

The Tribunal will look at market rent for similar properties in the area. Your evidence is comparable current listings and MBIE market rent data for the same suburb, property type and bedroom count.

Apply within the notice period, before the increase takes effect, rather than after.

This is a genuine remedy but not a common one, because most increases track the market. It is most useful where a landlord has moved a long-standing below-market rent to well above market in a single step.

Before you escalate: talk

An open conversation resolves more of these than the Tribunal does. A landlord facing a vacancy — advertising, letting costs, and weeks of no rent — has a real financial interest in keeping a reliable tenant.

If the increase is above market, say so with the comparable listings attached. If it is at market but you cannot afford it, say that. A proposal to accept a smaller increase, or to accept the full increase from a later date, is a normal negotiation.

Put whatever you agree in writing.

Rent reductions

Less well known: rent can go down. If the property’s condition or the services provided are substantially reduced — a shared facility withdrawn, part of the property becoming unusable — you can seek a rent reduction, including through the Tribunal.

If rent decreases, and you have paid a bond or pet bond calculated on the higher rent, you can apply for a refund of the excess.

Frequently asked questions