Skip to content

Health and underwriting

Family history of cancer and insurance underwriting

Insurers ask about immediate family only, and mostly about diagnoses made before a stated age. A grandparent diagnosed late in life generally does not register. Two siblings diagnosed young usually does.

Last reviewed 4 September 2026 · Written and checked by the Best Life Insurance editorial team · How we get paid

In short

  • The question is normally limited to parents and siblings, and to diagnoses before a specified age.
  • The number of affected relatives and how young they were both matter to the rating.
  • Family history is a rating factor you cannot change, so a loading applied for it is rarely reviewable.
  • Trauma cover is the product most affected, because it pays a lump sum on a cancer diagnosis.
  • Insurers may ask whether you attend screening, and a documented screening record helps the file.
  • Where a specific inherited pattern is suspected, questions about genetic testing may follow.

What this is, plainly

Family history questions look intrusive and are in fact quite narrow. Almost every New Zealand application asks about parents and siblings only, and asks about diagnoses made before a stated age — commonly somewhere in the fifties or sixties, though the exact threshold differs by insurer. A relative diagnosed above that age generally does not affect the assessment.

What underwriters are looking for is a pattern rather than an event. One parent diagnosed at 62 is usually unremarkable. Two first-degree relatives diagnosed with the same cancer in their forties is a different signal, and it is the kind of pattern that produces a rating on trauma cover in particular.

What is asked and where it lands

The questions are short but precise, and approximate answers cause avoidable follow-up.

  • Which relatives were affected — parents and siblings, and sometimes children.
  • What cancer each was diagnosed with.
  • The age at diagnosis for each.
  • Whether any pattern of the same cancer runs across more than one relative.
  • Whether you attend any screening programme as a result, and what the findings have been.
  • Whether any genetic testing has been undertaken in the family.

Evidence commonly requested

  • Usually none beyond your answers, since the insurer cannot obtain a relative’s records.
  • Your own screening results, where you attend a programme.
A family history of cancer across the four products
Cover typeHow this history usually lands
Life coverFrequently standard; a strong pattern at young ages can attract a modest loading.
Trauma coverThe most affected product, since it pays a lump sum on diagnosis. Loadings and occasionally exclusions.
TPDUsually standard.
Income protectionUsually standard.

General market practice, not a rule. Appetite differs by insurer and changes over time.

Family history is one of the few rating factors that does not improve with time, because the underlying fact does not change. What can change is the evidence around it. A documented record of attending screening, with clear findings, is something underwriters read favourably, and in some cases it is the difference between a loading and standard terms on trauma cover. Insurer appetite here also differs sharply, which makes comparison unusually worthwhile.

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 the question usually covers parents and siblings only, and only below a stated age.
  • That guessing ages of diagnosis creates follow-up questions — ask the family before you apply.
  • That trauma cover is where this matters, and life cover often is not affected at all.
  • That a family history loading is rarely reviewable later, unlike a build or blood pressure loading.
  • That being screened and having the results recorded works in your favour.

Where an adviser makes a difference

Every New Zealand insurer writes applications with a family history 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.

  • Insurers set different age thresholds and weight family history differently, so the same answers land differently.
  • An adviser can pre-assess anonymously where the family pattern is strong.
  • Where trauma is rated, an adviser can show what the same file achieves on life and TPD instead.
  • An adviser can make sure a screening record is presented alongside the family history rather than after it.

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. 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. 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. 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. 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

Which relatives do insurers ask about for family history?

Almost always parents and siblings, sometimes children. Grandparents, aunts, uncles and cousins are generally outside the question. The wording on the form is what governs, so read it rather than volunteering a family tree.

Does a family history of cancer affect life insurance?

Often not at all. Life cover is usually the least affected product. A strong pattern — more than one first-degree relative diagnosed young with the same cancer — can attract a modest loading, but a single diagnosis in later life normally does not register.

Why does family history affect trauma cover most?

Because trauma pays a lump sum on diagnosis rather than on death, so anything that raises the likelihood of a diagnosis is directly relevant to the price. Loadings on trauma for a strong family history are common where life cover on the same file is standard.

Can a family history loading be removed later?

Rarely, because the underlying fact does not change. Unlike a loading applied for build or blood pressure, there is no new evidence to bring. What can sometimes help is a documented screening record, which is worth raising if you are asking for reconsideration.

Should I find out the exact ages my relatives were diagnosed?

It is worth asking before you apply. Approximate answers generate follow-up questions and can push you the wrong side of an insurer’s age threshold. Precise ages, where you can get them, make for a faster and often better assessment.

Related reading