The cost of raising a child in New Zealand, year by year, from published sources

Written by Henry Smith · Reviewed by Smiths Insurance & KiwiSaver, licensed Financial Advice Provider (FSP712931) · Updated 2026-09-09 · Reviewed annually, or sooner if the rules it describes change.

Financial advice is provided by Craig Smith Business Services Limited, trading as Smiths Insurance & KiwiSaver, a licensed Financial Advice Provider (FSP712931). QuoteHub is a trading name.

New Zealand has no single official "cost of a child" figure. The closest government data is Stats NZ's Household Economic Survey, which shows a couple with one dependent child spends $2,091.90 a week on average, against $1,611.30 for a childless couple, a gap of $480.60 a week (Stats NZ, Household expenditure statistics: year ended June 2023, retrieved 9 September 2026). This page sets out that government data and named non-government estimates below, dated.

What Stats NZ's own household spending data shows

Stats NZ does not publish a "cost of a child" line item. What it does publish, every three to four years, is average weekly household expenditure broken down by household composition, and the difference between a couple with children and a couple without is the closest official proxy for what children add to a household budget.

Stats NZ's year-ended-June-2023 survey shows household spending rises with each additional dependent child, and the table below sets out every composition the release publishes.

Household composition	Average weekly expenditure
National average, all households	$1,597.50
One-person household	$807.90
One parent with dependent child(ren) only	$1,114.80
Couple only	$1,611.30
Couple with one dependent child	$2,091.90
Couple with two dependent children	$2,208.20
Couple with three or more dependent children	$2,282.90

(Stats NZ, Household expenditure statistics: year ended June 2023, published 5 March 2024, retrieved 9 September 2026.)

This is household spending, not child-specific spending: a couple's total budget rises when a first child arrives (from $1,611.30 to $2,091.90 a week, up $480.60), but each additional child adds progressively less to the total (a second child adds $116.30 a week to the household total, a third or later adds a further $74.70), which likely reflects shared costs like housing and transport rather than children becoming cheaper.

How much does the average NZ family spend on a child?

Stats NZ's data implies roughly $480 a week, or about $25,000 a year, is the difference between a childless couple's spending and a couple with one dependent child, based on the year-ended-June-2023 survey ($2,091.90 versus $1,611.30 a week) (Stats NZ, retrieved 9 September 2026). This is a household-total comparison, not a per-child cost breakdown, since Stats NZ does not publish the latter.

Has the cost of raising a child gone up recently?

Household spending generally rose sharply in the four years to June 2023: average weekly household expenditure nationally rose 18.4 percent, driven mainly by food (up 28.1 percent to $299.50 a week) and housing and household utilities (up 15.5 percent to $398 a week) (Stats NZ, retrieved 9 September 2026). Stats NZ collects this data roughly every three years, so the next full update is not yet published.

Is a single-parent household cheaper to run?

Not per adult, though the total is lower. A one-parent household with dependent children spent $1,114.80 a week on average, well below the $2,091.90 a couple with one child spends, but that reflects one income and one set of adult costs, not that raising the child costs less (Stats NZ, retrieved 9 September 2026).

Does spending rise the same amount for every extra child?

No. The first child adds $480.60 a week to a couple's spending, the second adds a further $116.30, and a third or later child adds a further $74.70 on average, based on the same Stats NZ release (Stats NZ, retrieved 9 September 2026). The pattern suggests shared household costs, not each child costing progressively less individually.

Where does Stats NZ get this household spending data from?

It comes from the Household Economic Survey (HES), which Stats NZ runs roughly every three to four years by surveying households directly about their spending, income and material wellbeing (Stats NZ, retrieved 9 September 2026). The year-ended-June-2023 release is the current one; the gap since the year-ended-June-2019 release was four years rather than three because 2022 data collection was postponed for COVID-19.

When will this data next be updated?

Not published yet. Stats NZ's HES expenditure survey runs on a roughly three-to-four-year cycle, and the year-ended-June-2023 results (released 5 March 2024) are the most recent full expenditure release at the time this page was written (Stats NZ, retrieved 9 September 2026).

What Inland Revenue's own child expenditure tables show

Separately from the household survey, Inland Revenue publishes its own child expenditure tables every year, used to calculate child support payments, and they are built from average weekly earnings data rather than the HES.

Inland Revenue's child support formula bands spending by parental income and by whether a child is 12 and under or 13 and over, and the table below shows the lowest income band for the 2027 tax year as an example of how the scale works.

Income band (2027 tax year)	Annual child-related spending, 1 child aged 12 and under
$0 to $42,971	17 cents of every dollar of that income
$42,972 to $85,941	$7,305 plus 15 cents for every dollar over $42,972
$85,942 to $128,912	$13,750 plus 12 cents for every dollar over $85,942
$214,855 and over	$26,212 (capped)

(Inland Revenue, Child support expenditure tables 2027, retrieved 9 September 2026. A separate, higher-cost table applies to children aged 13 and over; both tables are published in full on Inland Revenue's site.)

This is not a household budgeting tool. It exists to calculate what a paying parent contributes under the child support formula, and the income ranges reset each year based on average weekly earnings for the June quarter of the previous tax year (Inland Revenue, retrieved 9 September 2026). We include it because it is the only other government-published, dated figure on the cost of a child in New Zealand, and it is useful as a sense check against the Stats NZ comparison above.

Why does the cost jump when a child turns 13?

Inland Revenue's tables use two separate spending bands, one for children aged 12 and under and one for 13 and over, and the 13-and-over table sets higher spending levels at every income band (Inland Revenue, retrieved 9 September 2026). At the lowest income band, for example, the rate rises from 17 cents in the dollar for a child 12 and under to 23 cents in the dollar for a child 13 and over.

Is there an official calculator for these figures?

Yes. Inland Revenue's child support formula and its published expenditure tables are the closest thing to an official calculator, and they are built specifically to work out one parent's contribution when parents live apart, not a general household budgeting tool (Inland Revenue, retrieved 9 September 2026).

What Plunket's own baby-cost estimates say

Plunket, New Zealand's largest well-child provider, publishes its own rough cost estimates for a new baby, separate from any government data, and updates them under a page headed "The real cost of having a baby in 2026".

Plunket estimates a moderate-budget baby costs around $390 a week, or about $20,280 a year, rising to around $625 a week on a higher-spend budget, and the table below breaks out its named cost categories.

Cost category	Plunket's estimate
Moderate weekly budget	$390/week ($20,280/year)
Higher-spend weekly budget	$625/week
Food and nutrition supplies	$1,650/year
Nappies, wipes and creams	$1,875/year
Childcare	$16,000/year, the single biggest cost
Bedtime supplies (cot, mattress, monitor etc.), upfront	$1,600
Car seat, stroller and carrier, upfront	$1,750

(Plunket, "The real cost of having a baby in 2026", retrieved 9 September 2026.)

Plunket is explicit that these are rough estimates that depend heavily on what you buy new, borrow, are gifted or buy second-hand, and it does not claim to be a survey the way Stats NZ's is. We include it because it is the most current, named, dated New Zealand source that attempts a specific dollar figure for a new baby, rather than a household-composition comparison.

What is the single biggest cost of raising a baby?

Childcare, at an average of $16,000 a year, is by far the largest named cost in Plunket's breakdown, well ahead of nappies ($1,875/year) or food ($1,650/year) (Plunket, retrieved 9 September 2026). Families who do not need paid childcare, because a parent stays home or a family member helps, avoid this cost entirely, which is part of why the moderate-to-higher-budget range spans $390 to $625 a week.

What free healthcare costs are already covered for children in NZ?

Most maternity care, Well Child/Tamariki Ora checks, GP visits at an enrolled practice, prescriptions, most childhood immunisations, after-hours urgent care, basic dental treatment to age 18 and the free B4 School Check are already publicly funded and do not need to be budgeted for separately (Plunket, retrieved 9 September 2026). Private maternity care, antenatal classes, some laboratory tests and ultrasound scans can still carry a fee.

How much income do families typically lose while on leave with a new baby?

The maximum paid parental leave payment is $811.05 a week before tax, and Plunket compares this with median weekly earnings for women of around $1,247 before tax, a gap of roughly $435 a week, or close to $11,300 over the 26-week paid leave period, before any Best Start payment that follows (Plunket, retrieved 9 September 2026).

How much does it cost to raise a child from birth to 18 in NZ?

Not published as a single official figure. Stats NZ measures household spending, not a running per-child total, and Plunket's estimates cover roughly the first year only, so no government or named source in New Zealand currently publishes a birth-to-18 total, and QuoteHub has not built one by multiplying the weekly figures above, since that would create a number no source actually stands behind.

Do lower-income families get help with these costs?

Yes, through two main channels: Best Start pays up to $77 a week per child to age 3, reduced above $79,000 family income, and Working for Families provides broader ongoing support once income is assessed (Inland Revenue, retrieved 9 September 2026). Neither offsets the full amount shown in the tables above, but both reduce it.

Why these figures differ, and which to use

Stats NZ, Inland Revenue and Plunket are answering three different questions, not disagreeing with each other. Stats NZ measures whole-household spending and lets you see the difference children make to a family's total budget. Inland Revenue's tables exist purely to calculate child support and use income bands, not weekly dollar figures. Plunket estimates the direct, out-of-pocket cost of a baby specifically, aimed at new parents budgeting for the first year.

QuoteHub's read is that the Stats NZ comparison ($480.60 a week extra for a first child) is the most reliable if you want to know what a baby does to your whole household budget, while Plunket's $390 to $625 a week range is more useful for a first-year shopping list. Neither figure should be read as a guarantee: your own costs depend on childcare choices, housing, and whether you buy new or second-hand. Financial advice is provided by Craig Smith Business Services Limited, trading as Smiths Insurance & KiwiSaver, a licensed Financial Advice Provider (FSP712931). QuoteHub is a trading name.

Where to go next in this cluster

For the two government payments that offset some of this cost, see paid parental leave in New Zealand and the Best Start payment. Our new-baby checklist hub sets out every step in order. For insurance, adding a baby to health insurance compares each insurer's newborn rules, and the new-parent insurance checklist covers what to sort first, including health insurance for the child and health insurance for the whole family. Given the income gap during leave, how much life insurance new parents actually need and do you need income protection insurance are worth reading before your baby arrives, alongside insurance for new parents in NZ. Use our life insurance calculator and income protection calculator to size cover, compare life insurance quotes or income protection quotes, browse health insurance options, or start a free comparison. Our guides to life insurance, income protection, making a will in New Zealand and the free will service round out the wider new-parent picture.

Adviser's view

QuoteHub's view is that people arrive here searching for one lifetime figure, and no such number exists in any government or named New Zealand source. Stats NZ measures whole household spending, Inland Revenue's tables only calculate child support, and Plunket estimates the first year specifically, three different questions rather than three competing answers to the same one, so picking a single total means picking a source, not a fact.

Henry Smith, Financial Adviser (FSP1010699). General information, not personalised financial advice.

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Cite this page QuoteHub NZ (2026). Cost of Raising a Child in NZ: Year-by-Year Figures. www.quotehub.co.nz/guides/new-baby/cost-of-raising-a-child-nz. Updated 2026-09-09.