Types of cover
Indexation and CPI increases
Indexation raises your sum insured with inflation each year, without medical evidence, and raises the premium to match. Declining it repeatedly is one of the quietest ways cover becomes inadequate.
Last reviewed 4 September 2026 · Written and checked by the Best Life Insurance editorial team · How we get paid
In short
- Indexation increases your cover annually, usually by CPI or a stated minimum percentage, whichever the policy specifies.
- It is applied automatically by most insurers unless you decline it — an opt-out, not an opt-in.
- No medical evidence is required, so indexation is a way to keep growing cover after your health has changed.
- The extra cover is priced at your attained age, so premium increases from indexation stack on top of stepped increases.
- Declining indexation too many times in a row can end the option permanently with some insurers.
- On level premium cover, indexation quietly undermines the fixed premium you thought you had locked in.
What this is, plainly
Indexation is the mechanism that stops a fixed sum insured turning into an inadequate one. A $600,000 policy taken out today does not buy $600,000 of purchasing power in fifteen years, and the mortgage and living costs it was sized against will not have stood still either. Each year the insurer offers to increase your cover in line with inflation, and charges for the increase.
The important structural point is that the increase requires no health evidence. That makes indexation quietly valuable: once your health has changed, it may be the only way left to grow your cover. Someone diagnosed with a serious condition at 45 cannot buy new cover easily, but can usually keep accepting indexation on the policy they already have.
The cost is real, though, and it compounds in a way people do not expect. The additional cover is priced at your current age, so on stepped cover you get an age-related increase plus an indexation increase every year. On level cover, where the point was a fixed premium, indexation adds an increase the “level” label appeared to rule out.
Deciding whether to accept it this year
Indexation is not a yes-or-no decision made once. It comes back every anniversary, and the right answer changes as your circumstances do.
| Your situation | Usual answer |
|---|---|
| Mortgage still large, children still dependent | Accept — the need is growing with inflation too |
| Health has changed since you applied | Accept if affordable — it may be the only way to increase cover |
| Debt nearly repaid, children independent | Decline, and consider reducing cover instead |
| Premium affordability is becoming tight | Decline this year rather than lapsing the whole policy |
| Level premium cover taken for a fixed liability | Often decline — you sized it deliberately and fixed the price |
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.
- The rate used: CPI, a stated minimum percentage, or the greater of the two.
- Whether the increase is automatic unless declined, and how you decline it.
- Whether declining a set number of times in a row removes the option permanently.
- Whether indexation continues after a certain age, and whether it stops on level premium policies at expiry.
- How indexation applies to trauma and TPD benefits attached to the same plan, and whether they can be indexed separately.
- Whether indexed increases are subject to the original policy terms, including any loading or exclusion.
Where an adviser makes a difference
Every New Zealand insurer writes life insurance in new zealand 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.
- Indexation rules differ enough to be a genuine comparison point — the definition of the rate, the age it stops, and the decline provisions.
- An adviser can index the life cover while declining it on a trauma benefit, which is often the right split.
- Where affordability is tight, declining indexation is usually the first lever to pull, ahead of reducing the sum insured.
- An annual review is the moment to decide this deliberately rather than letting the default run for a decade.
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
What is CPI indexation on a life insurance policy?
An automatic annual increase to your sum insured in line with inflation, with a matching premium increase. No medical evidence is needed, and most New Zealand insurers apply it unless you actively decline.
Should I accept the annual indexation increase?
Accept it while the need is growing — a large mortgage, dependent children, or a health history that makes new cover hard to buy. Decline it once the liability is shrinking or affordability is tight. It is an annual decision, not a permanent one.
Why did my premium rise more than my sum insured?
Because indexed cover is priced at your current age, not the age you were when the policy started. On stepped premiums you receive an age increase and an indexation increase in the same year, and the two compound.
Can I stop indexation on my policy?
Yes, by declining the increase before the anniversary or asking the insurer to switch it off. Be aware that some insurers withdraw the option after several consecutive declines, so confirm whether it can be reinstated.
Does indexation apply to level premium cover?
Usually yes, unless you decline it — and it is the main reason a “level” premium keeps rising. If you took level cover to fix the cost against a defined liability, declining indexation is often consistent with that decision.