Compare insurers
AIA vs nib
AIA writes the full personal risk range and health cover. nib is best known in New Zealand for health insurance and also offers life and living cover. Those are different starting points, and the comparison should reflect that.
Last reviewed 4 September 2026 · Written and checked by the Best Life Insurance editorial team · How we get paid
In short
- Both operate and both offer health cover alongside life and living cover.
- A strong health wording and a strong life wording are not automatically at the same insurer.
- Health premiums are age-rated and repriced annually; life cover on a level structure behaves quite differently.
- Simplified life cover sold alongside health insurance often carries broader pre-existing exclusions.
- Health and life applications are underwritten separately and can reach different conclusions on the same condition.
- Multi-policy discounts are real, but only worth having if you would have chosen both policies anyway.
What this is, plainly
AIA operates in New Zealand with the full personal risk range — life, trauma, TPD, income protection and health — and reaches customers through advisers and, for simpler products, more directly. nib operates primarily as a health insurer in New Zealand and also offers life and living or serious-illness cover.
That difference in starting point matters. For many households nib’s health policy is the first insurance relationship they have, and the life cover is offered on top of it. That inverts the order most advisers would work in, because health insurance pays for treatment while life and living cover replaces money — income, debt repayment, the cost of a family carrying on.
There is a real convenience benefit to consolidating and multi-policy discounts are genuine. But the discount is only a saving if both policies would have been your choice independently.
The six things that actually differ
Compare the health policies as health policies, and the risk cover as risk cover. These six do most of the work.
| What differs | What to ask | Why it matters |
|---|---|---|
| Health cover tier | Is the health policy base surgical, or comprehensive with specialist consultations and diagnostics? | The gap between those two tiers is where most unexpected health claim shortfalls appear. |
| Non-Pharmac drug cover | Is it included, and to what annual and lifetime limit? | It produces the largest single-claim differences between New Zealand health policies. |
| Risk cover underwriting | Is the life and living cover fully underwritten or simplified, and does a general pre-existing exclusion apply? | Simplified is faster but moves the health assessment from application time to claim time. |
| Terminal illness and trauma definitions | 12 or 24 months on terminal illness, and how are the major trauma conditions defined? | These are the clauses that decide the claim, and brand strength is no guide to them. |
| Income protection availability | Is income protection offered at all, and on what definitions and offsets? | For most working households income protection matters more than a lump sum, and it is not always available. |
| Bundle economics | What is the discount worth, is it conditional on holding both policies, and what happens if I cancel one? | A discount that evaporates on cancellation is a soft lock-in rather than a saving. |
Not sure what cover you actually need?
That is the question an adviser is there to answer. Tell us your situation and a licensed New Zealand adviser will compare the market and come back with a written recommendation — including where you can cut cover you do not need.
No cost to you and no obligation. General information only — not personalised financial advice.
What to watch for
These are the details that decide whether the cover does what you expected. Read them before you compare on price.
- Whether a pre-existing condition excluded on the health policy would also be excluded on the risk cover — the assessments are separate.
- Whether maximum sums insured on life and living cover are enough for your mortgage and family.
- Whether health premiums have been illustrated at 55, 65 and 75 rather than only today.
- Whether the risk cover is guaranteed renewable or reviewable.
- Whether the trauma cover offered is a full trauma product or a narrower serious-illness benefit.
Where an adviser makes a difference
Every New Zealand insurer writes life and living cover to its own wording, and the words are where the money is. Two policies that look identical on price can pay very differently when it matters. Closing that gap is the entire job of an adviser.
- An adviser quotes both insurers on matched terms — same sum insured, same structure, same waiting and benefit periods — which is the only way the numbers mean anything.
- Where a health history is not straightforward, an adviser can pre-assess it anonymously with both insurers before any formal application exists, so an unfavourable answer never lands on your record.
- Policy fees and multi-benefit discounts mean the cheaper per-benefit rate is often not the cheaper household total. An adviser models the total.
- An adviser can quote health and risk cover separately across the market and show what the bundle discount is actually worth.
- Pre-existing condition treatment differs between health and life underwriting, and an adviser knows which insurers handle a given history best on each.
There are three ways to buy life cover in New Zealand, and they are not equivalent. You can buy direct from one insurer, which means you see one product range and one underwriting appetite. You can buy through your bank, which usually means a single insurer’s product sold under the bank’s brand, often with narrower definitions. Or you can go through an adviser, who quotes several insurers at once and is required to put your interests first.
The premium you pay is the same either way. Insurers build adviser commission into their pricing whether or not an adviser is involved, so going direct does not get you a discount — it just removes the person whose job is to argue your corner at application and at claim time.
- An adviser can see which insurer is currently taking your health history on standard terms, and which one will load or exclude it.
- An adviser can structure cover across two insurers if that produces a better outcome than putting everything with one.
- An adviser handles the underwriting back-and-forth, and is the person who chases the claim when a family is least able to.
- An adviser has to document why the recommendation suits you, which is a written record you can hold them to.
What happens if you get in touch
We are a referral service, not an insurer. We do not quote premiums and we do not sell policies. What we do is put you in front of one licensed New Zealand adviser who can compare the market properly.
- 1
You tell us what you are looking at
The form takes about a minute. Nobody asks for your medical history on a web form — that conversation happens with the adviser, properly, and only once you have decided to proceed.
- 2
An adviser calls you
A licensed New Zealand adviser talks through your situation: who depends on you, what you owe, what you already have in place, and what you are actually worried about.
- 3
They compare the market
The adviser quotes across the major insurers, checks which of them will take your health history on the best terms, and puts the options side by side in writing.
- 4
You decide, in your own time
There is no obligation and no cost to you. If the answer is that you already have enough cover, a good adviser will tell you that.
Frequently asked questions
Is it better to buy life cover from a health insurer like nib or a life insurer like AIA?
It depends entirely on the wordings, not on the category. Compare the terminal illness definition, the trauma definitions for the major conditions, the TPD definition and conversion age, and any income protection offset clause. Where they are equivalent, convenience and price decide. Where they are not, the gap is what you would be trading away for the bundle.
Will nib and AIA treat my pre-existing condition the same way?
Not necessarily, and health and life underwriting reach different conclusions in any case. Health underwriting is concerned with future treatment costs; life underwriting with mortality and morbidity. The same condition can be excluded on a health policy and accepted at standard rates on life cover, at the same insurer or at different ones.
Do I need income protection if I have health insurance?
They solve different problems. Health insurance pays for treatment; it does not replace the income you stop earning while you are unwell. For most working households income protection is the more urgent cover, so check whether it is available from the insurer you are considering and on what definitions before assuming health cover is enough.
How much is a multi-policy discount actually worth?
It varies, and the only way to know is to price the bundle against the best standalone combination across the market. Ask what the discount is in dollars, whether it is conditional on keeping both policies, and what the price becomes if you cancel one — because that answer determines whether you are getting a saving or a soft lock-in.
Why does my health premium rise faster than my life premium?
Health premiums are usually age-rated and repriced annually against both age and medical cost inflation, which has run ahead of general inflation. Life cover on a level premium structure fixes the age-related component to a chosen expiry age. They are different pricing models, and holding both with one insurer does not change that.