Income Protection vs Mortgage Protection NZ (2026): Which Actually Guards Your Home?

Income protection can be set to cover up to 115% of your mortgage; mortgage protection guards the repayment itself. Here is which one actually protects your NZ home if you cannot work.

You signed for the house. You used most of your KiwiSaver for the deposit. Now there is a 30-year repayment sitting against the single largest asset you own, and the whole thing rests on one assumption: that you can keep earning. The two products people reach for to protect that are income protection and mortgage protection. They sound interchangeable, but they work differently, and the bank rarely explains the distinction at signing.

This guide breaks down what each one actually pays when you cannot work, why income protection can be tied directly to your loan at up to 115% of your mortgage repayments, where mortgage protection wins, and the part the bank usually skips when you sign.

TL;DR: Income protection guards your income (up to 75% of pre-tax pay); a mortgage-pegged income benefit can be set to up to 115% of your mortgage ¹². For most first-home buyers the cleanest answer is income protection with the mortgage baked in, because ACC does not pay for illness, and illness causes most long-term work absences ³⁵.

What does each product actually do when you cannot work?

Both products pay you a monthly amount if illness or injury stops you working. The difference is what the payment is anchored to.

Income protection replaces a percentage of what you earn, typically up to 75% of your pre-tax income, paid monthly until you return to work or the benefit period ends ². The benefit is built around your salary, so it keeps flowing toward everything your income covers: the mortgage, yes, but also rates, insurance, food, power, and the kids.

Mortgage protection (sometimes "mortgage repayment cover") is narrower and sharper. It pays a monthly benefit pegged to your home-loan repayment, up to 115% of your residential mortgage or rent ¹. It does not care what you earn; it cares what your loan costs. Two features make it behave differently from standard income protection:

• It can pay more than 75% of income, because it is sized to the loan, not the salary.
• Depending on the specific policy wording, it is generally not offset against ACC or other income, so it can pay in full even when an accident is involved ¹².

The right question is not "which is better" in the abstract. It is "which keeps the roof over your head with the least premium and the fewest gaps."

Can income protection be set to cover your mortgage?

Yes, and this is the bit most people miss. The line between the two products is blurrier than the names suggest, because the major insurers sell a single benefit that does both jobs.

The 115% feature

AIA's Living Mortgage, Income or Rent Cover lets you insure up to 115% of your residential mortgage repayments or rent — or 45% of gross income, whichever you choose, directly tying the cover to your home loan ¹. It comes in three flavours: Agreed Value, Indemnity, and Loss of Earnings. Chubb, Fidelity Life and Asteron all offer the same 115%-of-mortgage structure under their own product names.

Why 115% and not 100%? Because your mortgage is not your only home cost. The extra 15% is there to absorb rates, house and contents insurance, and body corporate fees — the running costs of owning that you still owe even when no income is coming in. It is a deliberately practical number.

People often assume "income protection" always means 75% of salary and nothing more. In practice you can structure income-style cover to track the mortgage instead, which can pay more toward the loan than a strict 75%-of-income calculation would for a lower earner. Bank-arranged cover is sometimes sized at the bare repayment, with no allowance for rates or the waiting period before payments begin, when a 115% option may be available for a small additional cost.

Where mortgage protection wins, and where it leaves gaps

Mortgage protection has two genuine advantages, and one quiet limitation.

Where it wins:

1. It is generally not offset against ACC. Standard income protection is reduced dollar-for-dollar by ACC payments for accident claims; a mortgage repayment benefit generally is not — though whether it is offset depends on the specific policy wording ¹². Where the policy allows it, an accident that stops you working can mean ACC pays its share and your mortgage cover pays on top.

2. It can pay more toward the loan. Because it is sized to the repayment at up to 115%, it can deliver a bigger monthly figure than a 75%-of-income benefit, especially if your repayment is large relative to your salary.

A worked example: the same person, two products

Scenario: A self-employed tradesperson with a large mortgage gets quoted both products (figures illustrative, drawn from Threefold's published comparison ¹³).

Same person, same month. On these illustrative figures the mortgage-pegged benefit pays roughly $1,692 a month more toward the home, and — where the policy wording allows — is not clawed back when ACC is involved.

Where it leaves gaps: mortgage protection only protects the mortgage. It will not feed your family, keep the power on, or cover rates beyond that 15% buffer. If you have credit-card debt, a car loan, or simply need to live while you recover, a mortgage-only benefit can leave you covering the loan and still going backwards everywhere else. It guards the house; it does not guard the household.

ACC, illness, and your home loan: the part banks don't mention

When the bank arranges "loan protection" at signing, the conversation rarely turns to the single biggest exposure in the whole picture: ACC does not cover illness.

ACC covers personal injury caused by accidents only. It explicitly does not cover illness, sickness, contagious disease, conditions related to ageing, or most gradual-onset conditions ³. That matters because illness — not accident — is what most often stops people earning for the long haul. FSC research cited by MoneyHub found around 1 in 7 NZ households had someone unable to work for 3+ months due to illness or injury over five years, and that roughly 80% of long-term absences are caused by illness, the kind ACC will not touch ⁵.

Even when ACC does pay, it pays for accidents only, at 80% of pre-injury earnings, capped at $2,418.55 gross per week for the 2025/26 period, with a full-time minimum floor of $752.00 per week from 1 April 2025 ⁴⁶. A mortgage that quietly leans on ACC is exposed twice: it gets nothing if illness is the cause, and the accident payment is capped.

Source: AIA NZ product data, ACC and FSC research ^12345612.

The headline: any cover that relies only on ACC to guard your home is betting that whatever stops you working will be an accident. The statistics say it usually won't be.

Why first-home buyers who used KiwiSaver need this conversation

If you bought with a KiwiSaver first-home withdrawal, two things are true at once. You have committed to a long repayment, and you have drained the savings buffer that might otherwise have carried you through a few months off work. That combination is exactly where a single claim can become a forced sale.

It is also worth knowing your KiwiSaver is rebuilding from a smaller base than buyers a year ago enjoyed. From Budget 2025 the maximum annual government contribution was halved from $521.43 to $260.72 (25c per $1, down from 50c), effective 1 July 2025 ⁷. To get even that, you must still contribute at least $1,042.86 of your own money across the contribution year ⁸, and members earning over $180,000 now get nothing ⁹. The default contribution rate also rises from 3% to 3.5% on 1 April 2026, heading to 4% in 2028 ¹⁰. None of that rebuilds an emergency fund quickly — which is precisely why income cover, not just mortgage cover, matters once your KiwiSaver is in the walls of the house.

While you are in the numbers, check your Prescribed Investor Rate: the wrong PIR quietly drags on the very account you are trying to rebuild. PIRs are 10.5%, 17.5% and 28%. The 10.5% rate applies if your taxable income was $14,000 or less and your combined income (taxable income plus PIE income) was $48,000 or less; the 17.5% rate applies if taxable income was $48,000 or less and combined income was $70,000 or less; above those, the rate is 28% ¹¹.

Income, mortgage, or both: an adviser's framework

Across the insurers we compare — AIA, Asteron, Chubb, Fidelity Life and Partners Life — the structures rhyme but the limits differ. The ceilings and waiting-period ranges below are indicative and vary by product version and edition; confirm current limits against each insurer's policy wording before relying on them.

A simple way to decide:

• Tight budget, big repayment relative to income, mostly accident-risk occupation: mortgage repayment cover often does the heavy lifting for the lowest premium, and the no-ACC-offset feature (where the policy allows it) is a real bonus.
• Want the whole household protected, not just the loan: income protection sized at up to 75% of income, with the repayment comfortably inside it.
• First-home buyers who used KiwiSaver, single income, no buffer: usually income protection with the mortgage built in — one benefit, covering the loan and the life around it.

Comparing across the major NZ insurers helps identify the structure that best fits your numbers, rather than buying both when one will do. Get the waiting period right — match it to whatever sick leave or savings you have — and you avoid paying for cover you would never claim.

Your checklist for protecting the home you just bought

01. Write down your real monthly home cost — repayment plus rates, insurance, and body corp. That is the number cover should hit, and why the 115% ceiling exists.

02. Confirm whether your cover pays for illness. If it leans on ACC, it does not ³. Illness is ~80% of long absences ⁵.

03. Check the offset wording. A mortgage repayment benefit is usually not offset against ACC, but this depends on the specific policy; standard income protection usually is ¹².

04. Match the waiting period to your buffer. Used your KiwiSaver on the deposit? You likely have a short runway — choose accordingly.

05. Decide income, mortgage, or both using the framework above, then size to your numbers, not a default.

06. Fix your PIR and contribution rate so the KiwiSaver you are rebuilding actually grows ⁸¹¹.

07. Book a free review and have an adviser stress-test it against an illness claim, not just an accident.

Frequently asked questions

Is income protection or mortgage protection better for a first-home buyer in NZ? For most first-home buyers — especially those who used KiwiSaver for the deposit and have little savings left — income protection with the mortgage built in is the cleaner choice, because it covers the loan and the rest of life. If budget is tight and the repayment is large relative to income, standalone mortgage repayment cover can do more for less. The right answer depends on your numbers.

Can income protection cover my whole mortgage? Often, yes. Several insurers (AIA, Asteron, Chubb, Fidelity Life) let you set cover at up to 115% of your residential mortgage or rent, rather than the standard up to 75% of income ¹². The extra 15% is meant to absorb rates, house insurance and body corporate costs.

Does ACC cover my mortgage if I get sick? No. ACC covers personal injury from accidents only and explicitly excludes illness and most gradual-onset conditions ³. Since roughly 80% of long-term work absences are caused by illness ⁵, relying on ACC to protect a home loan leaves a large gap.

Why is mortgage protection not offset against ACC? Mortgage or rent repayment benefits are generally structured so they are not reduced by ACC payments, unlike standard income protection, which is offset dollar-for-dollar against ACC on accident claims ¹². Whether a particular benefit is offset comes down to the specific policy wording, so check yours before assuming it pays on top.

How much does ACC actually pay if I can't work? For an accident, ACC pays up to 80% of pre-injury gross earnings, capped at $2,418.55 gross per week for the 2025/26 period, with a full-time minimum of $752.00 per week from 1 April 2025 ⁴⁶. It pays nothing for illness.

I used my KiwiSaver for my deposit — does that change what cover I need? Yes. Withdrawing for your first home usually leaves a thin savings buffer, so a long claim can hit faster. That points toward income protection (whole-household cover) and a waiting period matched to your actual runway. Rebuild your KiwiSaver with the right PIR and at least the $1,042.86 contribution to capture the $260.72 government top-up ⁷⁸¹¹.

General information, not personalised financial advice. Seek advice tailored to your situation before acting. Craig Smith Business Services Ltd (FSP712931), trading as Smiths Financial, holds a Class 2 licence issued by the Financial Markets Authority and is a member of the Financial Dispute Resolution Service (FDRS). Written by Henry Smith, Financial Adviser; reviewed by Craig Smith, Principal Adviser. Last reviewed 16 June 2026.