Banks Are Lifting Fixed Rates: A NZ Landlord's Repricing Plan

Through 2026 the major banks have been lifting fixed mortgage rates, with Kiwibank joining the others in August. This followed the Reserve Bank raising the Official Cash Rate to 2.5% on 8 July 2026, its first increase since May 2023.

If you own rental property, the important thing about this is the timing. It is not a shock, it is a schedule.

Why fixed rates move before the OCR does

Floating rates track the OCR fairly closely. Fixed rates do not: they are priced off wholesale funding costs and market expectations of where the OCR is going. So banks lift fixed pricing in anticipation, which is why commentary has focused on the rush to raise fixed rates rather than on the Reserve Bank itself.

The practical consequence: waiting to see what the Reserve Bank does before you plan is waiting for information the market has already priced in.

Your repricing schedule is the whole exercise

A landlord with three properties often has three loans on different fixed terms. Nothing changes for any of them until each rolls. That means your exposure is a sequence of dated events, and every one of them is knowable today.

Build the list. For each loan:

1. The date it comes off fix.
2. The current balance.
3. The repayment at today's advertised rate for the term you would take.
4. The difference against what you pay now, per week.

That last number is the one that matters, because it is what has to come out of rent or out of your pocket from that date.

Then test each property against it

Take the weekly increase and set it against the property's actual position: rent genuinely received (not asking rent, and not ignoring the vacant fortnight), minus rates, insurance, maintenance and any management cost.

Three outcomes, each with a different response:

• Still comfortably positive. Nothing to do beyond noting the date.
• Thin but positive. Check whether the tenancy is due a lawful rent review, and make sure your maintenance budget is genuinely funded rather than notionally.
• Negative after repricing. This is the one worth months of notice. Options exist while you have time and shrink when you do not.

What you can and cannot do with rent

This is where landlords under cost pressure get themselves into trouble. Under section 24 of the Residential Tenancies Act 1986, rent for a tenancy can be increased once every 12 months, on at least 60 days written notice. Tenancy Services covers the mechanics on its increasing rent page.

Three things follow:

• Your repricing date and your rent-review eligibility are unrelated calendars. If the tenancy had an increase four months ago, you cannot bring one forward because your bank moved.
• 60 days notice means a decision made today takes effect in two months. Planning ahead is the only way rent responds anywhere near the cost.
• An increase still has to sit in line with market rent. Pricing above the market to cover a mortgage invites a challenge and, more practically, invites a vacancy, which costs more than the increase earned.

The two expensive reactions

Deferring maintenance. It is the fastest way to free up cash and the most costly over any real horizon. The duty to maintain the property in a reasonable state of repair under section 45(1)(b) does not soften because your costs rose, and deferred work compounds: a roof leak becomes a ceiling, a ceiling becomes a mould claim.

Pushing rent to the edge of the market. A tenancy at slightly under market with a tenant who stays three years usually beats a tenancy at the top of the market with two weeks vacant every year and higher turnover costs. Run that arithmetic before assuming the increase is worth it.

One thing that softens the blow

Mortgage interest on a residential rental is generally a deductible expense, subject to the interest-deductibility rules in force. That means the after-tax cost of a rate rise is smaller than the cash cost, but only if the interest is actually captured per property and available at tax time. See IRD's rental property guidance for the current position, and check with your accountant rather than assuming last year's settings.

Where RentManager helps

The repricing exercise fails when the numbers live in four places. RentManager holds actual rent received per tenancy, expenses categorised for IR3R, and mortgage interest per property, so testing a property against a higher repayment is a comparison rather than a reconstruction. The last rent-increase date sits on the tenancy, so which properties are even eligible for a review is a lookup, and rent increase notices are generated with the correct 60-day period.

Related: what the OCR rise means for landlords and the Landlord Hub.

Common questions

Why are banks raising fixed rates?

Fixed rates are priced off wholesale funding costs and expectations about where the Official Cash Rate is heading, not off today's OCR alone. When markets expect further increases, banks lift fixed pricing ahead of any actual move, which is why fixed rates can rise before the Reserve Bank does anything.

Should I fix or float my rental mortgage?

That is a question for your broker or bank, and the honest answer depends on your cashflow tolerance rather than on a forecast. What a landlord can control is knowing the repricing dates, modelling the repayment at current rates, and not being surprised. Nobody reliably picks the bottom of a rate cycle.

Can I increase the rent to cover a higher mortgage payment?

Only within the ordinary rules. Rent for a tenancy can rise once every 12 months, with at least 60 days written notice under section 24 of the Residential Tenancies Act 1986, and it still has to be in line with market rent for comparable properties. A higher mortgage payment is not a separate ground.

General information, current as at August 2026. Mortgage rates and tax settings change. Not financial, tax or legal advice.