The short answer
A child adds roughly eighteen years of financial dependency and, usually, a period where household income drops while costs rise. The two things that most often need to change: the amount of life cover (it is now sized to raising a child, not just clearing a mortgage) and cover for the parent who is not earning.
Last reviewed 2026-07-30
Sizing life cover once there is a child
Before children, life cover is largely about the mortgage. After, it has a second job: replacing income for as long as someone depends on it. The usual construction is clear the mortgage, plus income replacement until the youngest is independent, plus childcare and education costs, minus savings and existing cover.
That number is usually a lot larger than people guess — and, importantly, it is temporary. It steps down as the mortgage shrinks and the children grow. Run it through the cover calculator, then revisit it every few years rather than setting it once.
The parent who is not earning
This is the most commonly missed cover in New Zealand, and the reasoning behind missing it is superficially sensible: "they don't earn an income, so there is nothing to replace."
Except there is. If the at-home parent could not care for the children, the earning parent either pays for full-time childcare or stops working. Both are large numbers. Cover for a non-earning parent is not sentimental — it is the cost of replacing what they do.
The parent who is not paid is not the parent who is not needed.
Health cover for the child
Children can usually be added to a family health policy for a relatively small amount, and — this is the important part — a child added at birth has no medical history. Add them later, after any condition has been investigated, and that condition follows them as pre-existing for the rest of their insured life.
Of everything on this page, adding a newborn to a health policy early is the item with the highest ratio of long-term value to cost. Why this matters →
Trauma cover, including the children's benefit
Many trauma policies include a child's benefit — usually a modest sum covering a defined set of childhood conditions, for very little extra premium. What it really buys is the ability for a parent to stop working, without financial consequence, during a child's serious illness. That is a scenario where the financial and emotional needs point in the same direction, and where having cash removes an impossible choice.
The practical checklist
- Recalculate life cover for both parents, including the non-earning one.
- Add the baby to health cover now, not later.
- Check whether your income protection benefit still matches your outgoings — they went up.
- Check the child's trauma benefit is on your policy.
- Update your beneficiary nominations and your will. Insurance paid into an estate with no will is a slow, expensive outcome at the worst time.
- Diarise a review for when the second child arrives, or in three years.
And a note on health cover specifically: normal pregnancy and childbirth are generally excluded on NZ health policies because maternity care is publicly funded. Complications may be covered after a waiting period of around 12 months, so if you are planning another child that is worth checking before you need it.
Common follow-up questions
Should we insure the stay-at-home parent?
Usually yes. The cover is sized to the cost of replacing what they do — childcare, and the earning parent's reduced ability to work — rather than to a salary. It is one of the most commonly skipped covers and one of the more clearly justified ones.
When can I add a newborn to health insurance?
Insurers generally allow a newborn to be added within a defined window after birth, often with limited or no underwriting. That window is worth knowing and not missing, because it is the only point in your child's life when they have no medical history at all.
Does health insurance cover pregnancy in NZ?
Normal pregnancy and birth are excluded by most policies — maternity care is publicly funded here. Some policies cover complications after a waiting period of around 12 months. Check your own wording rather than assuming either way.
Keep reading
This page is general information about how insurance works in New Zealand. It is not regulated financial advice and it does not take your situation into account. For advice about your own cover, talk to a licensed financial adviser.