
KiwiSaver Calculator NZ
See exactly what you put in, what your employer adds, how much ESCT the taxman takes out of the employer's share, and what the whole lot could be worth by the time you retire.
Your details
Where every KiwiSaver dollar goes
You contribute
$2,450
$47 a week, from your gross pay
Employer contributes
$2,450
before ESCT is deducted
Lands in your fund
$4,165
per year, both contributions combined
| Component | Rate | Per year |
|---|---|---|
| Your contribution | 3.5% | $2,450 |
| Employer contribution (gross) | 3.5% | $2,450 |
| Less ESCT | 30% | −$735 |
| Employer contribution (net into fund) | — | $1,715 |
| Total invested each year | — | $4,165 |
On $70,000 a year, contributing 3.5% leaves you with about $53,105 in take-home pay after PAYE, the ACC earner levy and KiwiSaver — roughly $1,021 a week.
What it could grow to
A simple projection assuming your salary and contribution rates stay the same and returns are steady. Real returns vary year to year and fees and tax on fund earnings are not included.
Total contributed
$83,300
Investment growth
$61,306
Projected balance
$144,606
KiwiSaver, in plain English
- Your contribution
- The default rate is 3.5% of gross pay. You can choose 4%, 6%, 8% or 10%, or apply for a temporary reduction to 3%. It comes out of every payday alongside PAYE, so a higher rate means more savings but less cash in hand right now.
- Employer contribution
- Your employer must add a compulsory contribution on top for eligible employees. This is genuinely extra money — it is not deducted from your pay.
- ESCT (Employer Superannuation Contribution Tax)
- The employer's contribution is taxed before it reaches your account. The rate steps up with your total income, from 10.5% to 39%, which is why a 3.5% employer contribution arrives as $1,715 rather than $2,450 on this salary.
- Government contribution
- The Government also tops up eligible members' accounts each year based on what they have contributed. Eligibility rules and the amount are set by Inland Revenue, so check ird.govt.nz/kiwisaver for the current settings. It is not included in the projection above.
What lifting your rate actually costs, and five rules people get wrong
Take someone on $75,000. At the 3.5% default their own contribution is $2,625 a year. At 6% it is $4,500 — about $36 a week less in the bank. Nothing about their PAYE changes, because employee KiwiSaver comes out of pay that has already been taxed. That is the whole trade: today's spending money for a balance that compounds for decades.
- Assuming the employer 3.5% is always on top of your salary. It usually is, but some New Zealand employment agreements are written as "total remuneration", where the employer contribution is carved out of the package figure you agreed. If your offer quotes one number "inclusive of KiwiSaver", raising your own rate does not add anything from your employer — check the wording before you compare two job offers.
- Forgetting ESCT shrinks the employer contribution. Employer superannuation contribution tax is deducted from your employer's 3.5% before it reaches your account. So a 3.5% employer contribution does not land as a full 3.5% — the higher your total pay, the higher the ESCT tier and the smaller the net amount credited. Projections that ignore ESCT overstate your balance.
- Contributing too little to earn the full government contribution. The government member tax credit is paid on your own contributions up to an annual cap, counted over the KiwiSaver year to 30 June — not the tax year. Part-year employment, unpaid leave or a low-income year can leave you short of the amount needed for the maximum, and the shortfall cannot be made up later unless you top up voluntarily before the cut-off.
- Treating a savings suspension as free. While your contributions are suspended, your employer contributions stop too and you earn no government contribution for that period. A twelve-month pause in your twenties costs far more than the contributions themselves, because it is the compounding years you lose.
- Planning to withdraw the lot for a first home. A first-home withdrawal must leave a minimum balance in the account, and the government contributions you have received are not all withdrawable. Work out your deposit from the withdrawable portion, not the headline balance, before you sign anything.
If you are weighing a contribution increase against a pay rise, run the rise through the pay rise calculator first: a 4% rise with the 3.5% default often leaves you better off week to week than the same rise at 8%.
How we calculate this
This page shows what a KiwiSaver contribution rate costs you in take-home pay today, and what it is likely to be worth at 65. Every figure on this page is worked out in your browser from the rates listed below — nothing you type is sent anywhere or stored.
- 1Apply the default 3.5% employee rate, a higher chosen rate of 4%, 6%, 8% or 10%, or the temporary 3% reduction to gross pay.
- 2Work out the tax you still pay on that gross income — KiwiSaver comes out of after-tax pay, so contributing does not reduce your PAYE.
- 3Add the employer contribution and reduce it by the applicable ESCT tier.
- 4Project the balance forward with compounding on the combined annual contribution.
- 5Compare rates side by side so you can see the real weekly cost of stepping up.
Rates and thresholds in use
- Income tax bands: $0–$15,600 at 10.50%; $15,600–$53,500 at 17.50%; $53,500–$78,100 at 30.00%; $78,100–$180,000 at 33.00%; over $180,000 at 39.00%.
- ACC earners' levy: 1.75% of liable earnings.
- Student loan: 12% of every dollar earned above $24,128 a year.
- KiwiSaver employee rates: 3.5% by default, or 4%, 6%, 8% or 10% of gross pay; a temporary reduction to 3% is available.
Last reviewed August 2026 by the Payrise NZ team. We re-check these settings whenever Inland Revenue, MBIE or ACC announce a change, and update this page the same week.
Sources: Inland Revenue — KiwiSaver.
Related NZ pay and tax calculators
Keep going with the rest of the toolkit — each one uses the same up-to-date New Zealand tax settings.
- NZ Retirement CalculatorSee how much you could have at retirement and whether it will last.
- After-Tax Pay CalculatorTurn a gross salary into weekly, fortnightly and monthly take-home pay.
- PAYE Calculator NZ 2026Band-by-band PAYE on your income, plus ACC and student loan.
- Average Salary NZMedian pay from Stats NZ and how your salary compares.