Health and underwriting
Genetic testing and insurance underwriting
This is an unsettled area of practice. The rules about what must be disclosed and what an insurer may use are actively debated and have been changing, so the position described here is the current one and should be checked before you act on it.
Last reviewed 4 September 2026 · Written and checked by the Best Life Insurance editorial team · How we get paid
In short
- Insurers do not require you to take a genetic test in order to apply.
- Where you have already had predictive testing, questions about it currently arise under the general duty of disclosure.
- The New Zealand position on what insurers may ask for and use is contested and has been changing.
- Family history questions are separate and are asked regardless of any testing.
- Because the rules are moving, an old answer about this may no longer be right.
- This is an area where checking the current position with a licensed adviser matters more than usual.
What this is, plainly
Genetic testing sits at an uncomfortable intersection. Insurance underwriting works by pricing known risk, and a predictive genetic result is information about risk. At the same time, there is a strong public policy argument that people should not be discouraged from taking a test that could benefit their health because of what it might do to their insurance. Different countries have resolved that tension in different ways, and New Zealand’s position has been under active discussion.
What can be said clearly is this. Insurers do not currently require an applicant to undergo genetic testing as a condition of applying. Where testing has already been done and you know the result, the general duty of disclosure is the framework that applies, and that duty is broad. What is contested is the extent to which insurers should be able to ask for and use predictive results, and that debate has produced proposals for change.
Because this is live, treat anything you read about it — including this page — as a description of the position at a point in time rather than a settled rule. Ask a licensed adviser what the current position is before you apply, and before you decide anything about testing.
What is currently asked, and what is unsettled
Three things are worth separating, because they are frequently confused with one another.
- Family history. Asked on essentially every application, independently of any testing, and unaffected by this debate.
- Diagnostic testing done because you already have symptoms or a diagnosis. That is part of your medical record like any other investigation.
- Predictive testing done in the absence of symptoms. This is the contested category, and the one where the rules have been in question.
What insurers currently do
- They ask about your family history in every case.
- They do not require you to take a test.
- They may ask about tests already taken, and the general duty of disclosure applies to what you know.
- They obtain your medical records with your consent, and a result recorded there will be visible.
| Cover type | How this history usually lands |
|---|---|
| Life cover | Relevant where a predictive result sits alongside a strong family history. |
| Trauma cover | The product most sensitive to anything that raises the likelihood of a listed diagnosis. |
| TPD | Less commonly affected. |
| Income protection | Less commonly affected than trauma. |
General market practice, not a rule. Appetite differs by insurer and changes over time.
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.
- That family history is asked regardless, and is not part of the contested question.
- That a result recorded in your medical notes may be visible to an underwriter through the ordinary records process.
- That the position is currently under discussion and may not be the same when you next apply.
- That insurers do not require testing as a condition of an application.
- That anything written on this topic has a short shelf life, including this page.
Where an adviser makes a difference
Every New Zealand insurer writes applications where genetic information is in question 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.
- This is the clearest example on the site of a question where you need the current position rather than a general one.
- An adviser can tell you what each insurer is currently asking and how each currently treats the answer.
- Where a family history is strong, an adviser can compare how differently insurers weight it.
- An adviser can pre-assess anonymously so that exploring the question does not create an application record.
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
Do I have to take a genetic test to get life insurance in New Zealand?
No. Insurers do not require applicants to undergo genetic testing as a condition of applying. What is contested is how results of tests already taken are treated, and that is a different question.
Do I have to tell an insurer about a genetic test I have already had?
The general duty of disclosure is broad, and information you hold about your own risk falls within it. Because this specific area has been under active review in New Zealand, the safest course is to ask a licensed adviser what the current position is before you complete an application rather than deciding for yourself.
Is the law on genetic testing and insurance changing in New Zealand?
It has been an active policy question, with proposals for change under discussion. That is precisely why this page describes the position as current rather than settled. Check the position at the time you apply, because guidance written even recently may have been overtaken.
Will a family history question catch the same information anyway?
Family history is asked on essentially every application and is not part of this debate. It captures which first-degree relatives were affected and at what ages, which is separate from any testing you may or may not have had.
Which insurance product is most affected by predictive risk information?
Trauma cover, because it pays a lump sum on the diagnosis of a listed condition. Anything that changes the likelihood of such a diagnosis is more directly relevant to trauma pricing than to life cover.