KiwiSaver gives you three contributors: yourself (3-10%), your employer (minimum 3%, on top of salary), and the government ($521.43/year if you contribute at least $1,042.86). This calculator shows all three plus a long-term retirement projection at your assumed annual return.
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Retirement projection (optional)
Total annual contribution to your KiwiSaver
$0
You
$0
Employer
$0
Government
$0
At retirement (approximate)
—
Set years + return to project
Compounded annually. Assumes constant salary + contribution rate. Excludes ESCT on employer contributions and PIE tax inside the fund — actual outcome will differ.
The three KiwiSaver contributors
KiwiSaver works on a triple-contributor model that makes it
structurally more generous than employee-only retirement schemes:
You — pick your rate from 3% / 4% / 6% / 8% / 10% of gross pay. Default 3%.
Your employer — must contribute minimum 3% on top of salary (statutory). Many employers offer more.
The government — adds up to $521.43/year ("member tax credit"). Free money if you\'re eligible and contribute enough yourself.
A $70,000 earner contributing 3% puts in $2,100/year and receives
$2,100 from employer + $521 from government = $4,721 into
their KiwiSaver fund for $2,100 of their own money.
That\'s effectively a 125% match.
Choosing your contribution rate
Most KiwiSaver providers and financial advisors recommend
contributing at least 3% to capture employer
and government matches. Beyond that:
4% if you can afford it — captures the same matches with slightly more savings.
6%-10% if you\'re higher-income and want more retirement savings. The employer match stays at 3% — so the extra you contribute is purely your money.
0% (opted out) only if you have severe cashflow constraints. Otherwise you\'re leaving money on the table.
First Home Withdrawal
First-time home buyers can withdraw most of their KiwiSaver balance
(excluding the $521/year government contribution and a $1,000
minimum balance) to use as a deposit. Plus some buyers may qualify
for a First Home Grant of $3,000-$10,000.
KiwiSaver doubles as a tax-advantaged home-deposit savings account
for many New Zealanders.
Five options: 3%, 4%, 6%, 8%, or 10% of your gross pay. New employees are auto-enrolled at 3% (the default) but can opt out within 2-8 weeks. You can change your contribution rate via your employer at any time.
Does my employer have to match my contribution?
Yes — minimum 3% of your gross pay, paid on top of your salary in most contracts. Some employers offer higher rates (4%, 5%, even 10%) as a benefit. Note: some employment contracts use "total remuneration" packages that bundle KiwiSaver into the headline number — check yours.
How does the $521.43 government contribution work?
Officially called the "member tax credit", paid annually around late July. Worth 50c per $1 you contribute, up to $521.43/year. To get the full amount, contribute at least $1,042.86 yourself in the year (1 July to 30 June). Eligibility: NZ resident, age 18 to 64.
Should I opt out of KiwiSaver?
Almost never. Opting out forgoes both employer 3% AND government $521 contributions — that's about $2,900/year for a $70k earner who would have only paid $2,100 themselves. The math heavily favors staying in.
What is ESCT?
Employer Superannuation Contribution Tax — the employer's contribution is taxed before it reaches your KiwiSaver fund. Rate depends on your salary: 17.5% at the bottom, 28% / 30% / 33% / 39% for higher salaries (matched to income tax brackets). The calculator shows the gross employer contribution; the net amount in your fund is reduced by ESCT.
When can I access my KiwiSaver?
Three main triggers: (1) reaching age 65; (2) first-home withdrawal — you can withdraw most of your balance to buy your first home; (3) significant financial hardship or serious illness (case-by-case approval).
How does the retirement projection work?
It compounds your annual contribution (employee + employer + $521 government) at your assumed return for the years specified. Important caveats: assumes constant salary, constant contribution rate, constant return. Excludes ESCT on the employer portion and PIE tax inside the fund. Real outcomes will differ — use as a directional estimate only.