When you join KiwiSaver, one of the first decisions you make is how much to contribute. New Zealand employees can choose from five contribution rates: 3%, 4%, 6%, 8%, or 10% of your gross (before-tax) salary. These contributions are deducted from every pay cheque and forwarded to your KiwiSaver provider via Inland Revenue.
This guide explains what each rate means in dollar terms, how employer contributions layer on top, how to change your rate, and how to decide which rate is right for you.
For the broader picture of how KiwiSaver works, see the KiwiSaver Complete Guide NZ. For a comparison of all five rates side-by-side, see KiwiSaver 3% vs 4% vs 6% vs 8% vs 10%.
The Five KiwiSaver Contribution Rates
New Zealand employees must choose one of these five rates:
| Rate | Weekly cost (on $60k salary) | Annual contribution | Fortnightly cost |
|---|---|---|---|
| 3% | $34.62 | $1,800 | $69.23 |
| 4% | $46.15 | $2,400 | $92.31 |
| 6% | $69.23 | $3,600 | $138.46 |
| 8% | $92.31 | $4,800 | $184.62 |
| 10% | $115.38 | $6,000 | $230.77 |
Based on a $60,000 gross annual salary. Contributions are calculated on gross pay before PAYE is deducted.
Default rate: If you start a new job and do not nominate a rate, IRD applies the default rate of 3%.
How Contributions Are Calculated
KiwiSaver contributions are calculated on your gross ordinary time earnings (GOTE) — essentially your regular before-tax salary or wages. This includes:
- Regular salary and wages
- Holiday pay
- Sick pay
- Most allowances that are part of regular pay
It excludes (in most circumstances):
- Redundancy payments
- Reimbursements
- Some overtime (depending on your employment agreement — check with your employer)
Example: You earn $80,000/year and contribute at 4%.
- Annual contribution = $80,000 × 4% = $3,200
- Weekly contribution = $3,200 ÷ 52 = $61.54
Your employer adds another 3% minimum on top: $80,000 × 3% = $2,400 gross (before ESCT).
What Your Employer Adds
All employees aged 18+ in paid employment must receive a minimum employer contribution of 3% of their gross salary — on top of your own contribution, not taken from your salary.
This employer contribution is subject to ESCT (Employer Superannuation Contribution Tax). After ESCT is deducted, the net amount reaching your account is:
| Salary | ESCT rate | Employer gross contribution (3%) | ESCT deducted | Net to your account |
|---|---|---|---|---|
| $40,000 | 17.5% | $1,200 | $210 | $990 |
| $60,000 | 17.5% | $1,800 | $315 | $1,485 |
| $80,000 | 30% | $2,400 | $720 | $1,680 |
| $100,000 | 33% | $3,000 | $990 | $2,010 |
ESCT rates are based on combined employer + employee income thresholds. For full detail, see ESCT explained.
Even after ESCT, the employer contribution is effectively a pay increase — extra money going into your retirement savings at no direct cost to you.
What the Government Adds
The government contributes 50 cents for every dollar you put in, up to a maximum of $521.43 per year (the Member Tax Credit or MTC).
To receive the full $521.43:
- You must contribute at least $1,042.86 yourself between 1 July and 30 June
- You must be aged 18–65 and a NZ tax resident
- You must not be on a savings suspension for the entire year
That works out to roughly $20.05 per week in personal contributions. Most employees on 3%+ with an income over $35,000 will automatically exceed this threshold.
If you earn under ~$35,000 at 3%, your annual contribution may fall short of $1,042.86. In that case, you will only receive the MTC proportional to what you contributed. You can top up with a voluntary payment directly to your provider before 30 June to claim the full $521.43. See voluntary contributions guide.
Total Contributions at Each Rate (3 Sources Combined)
Here is the total annual amount flowing into your KiwiSaver at each contribution rate, combining your contribution, the employer’s net contribution, and the government MTC:
Assumptions: $60,000 salary, employer contributes 3%, ESCT at 17.5%, full MTC received.
| Your rate | Your contribution | Employer (net) | Govt MTC | Total into KiwiSaver |
|---|---|---|---|---|
| 3% | $1,800 | $1,485 | $521 | $3,806 |
| 4% | $2,400 | $1,485 | $521 | $4,406 |
| 6% | $3,600 | $1,485 | $521 | $5,606 |
| 8% | $4,800 | $1,485 | $521 | $6,806 |
| 10% | $6,000 | $1,485 | $521 | $8,006 |
The employer and MTC amounts remain the same regardless of your rate (assuming you already exceed the MTC threshold at 3%). The only variable is how much you personally contribute.
Which Rate Should You Choose?
There is no single right answer — it depends on your income, financial commitments, and goals. Here is a framework:
Start at 3% if:
- You are just getting started and want to build the habit without budget pressure
- You have high-interest debt (credit cards, personal loans) — paying that down may return more than additional KiwiSaver contributions
- You are saving for a first home and want to maximise take-home cash flow in the short term
Move to 4% if:
- You can absorb the extra ~$12/week (on $60k salary) without stress
- You have no high-interest debt
- You want to close the gap to the MTC threshold on a lower income
Consider 6%–10% if:
- You are a higher earner with discretionary income
- You are behind on retirement savings and want to catch up
- You are in your 40s or 50s and want to maximise the PIE tax advantage on investment returns
- Your employer matches above 3% (rare but worth checking your employment agreement)
For a deep-dive comparison including long-term projections, see KiwiSaver 3% vs 4% vs 6% vs 8% vs 10%.
For a personalised decision framework, see How Much Should I Contribute to KiwiSaver?
How to Change Your Contribution Rate
Changing your rate is straightforward and free:
Step 1: Decide on your new rate (3%, 4%, 6%, 8%, or 10%)
Step 2: Notify your employer. You can do this:
- Via your HR or payroll system (most large employers have an online portal)
- By completing a KS2 form (available at ird.govt.nz) and giving it to your payroll team
- In writing (email is acceptable)
Step 3: Your employer must action the change from your next available pay run after receiving your notification. They cannot delay it beyond that.
There is no limit on how often you can change your rate — you can increase or decrease it at any time.
To stop contributing entirely, you must apply for a savings suspension (contribution holiday) via myIR. You need to have been a KiwiSaver member for at least 12 months. See the contribution holiday guide.
Contribution Rates for Self-Employed and Contractors
If you are self-employed or a contractor, you do not have employer contributions deducted automatically. You choose how much to contribute and pay it directly to your provider.
- No minimum rate applies — you can contribute any amount at any time
- You do not receive employer contributions (there is no employer)
- You can still receive the government MTC if you contribute at least $1,042.86/year
- Contributions are made directly to your provider, not through IRD payroll
For full guidance, see the KiwiSaver for self-employed guide.
What Counts as Gross Pay for KiwiSaver?
The contribution calculation can trip people up. The key concept is gross ordinary time earnings (GOTE):
| Payment type | KiwiSaver deducted? |
|---|---|
| Regular salary / wages | ✅ Yes |
| Holiday pay (paid leave) | ✅ Yes |
| Paid sick leave | ✅ Yes |
| Statutory day (Mondayised) pay | ✅ Yes |
| Redundancy pay | ❌ Generally no |
| Retirement gratuity | ❌ Generally no |
| Reimbursements (e.g., mileage) | ❌ No |
| Commission | ✅ Typically yes (check employment agreement) |
| Overtime | ✅ Usually yes (check employment agreement) |
| Bonus payments | ✅ Usually yes — see bonus payments guide |
If you are unsure whether a payment should have KiwiSaver deducted, check with your employer or IRD.
Contribution Rates During Special Circumstances
Parental leave: KiwiSaver contributions are generally not deducted on parental leave payments from MSD (the government’s paid parental leave scheme). However, if your employer tops up parental leave to your full salary, those top-up amounts may attract KiwiSaver deductions. See the parental leave contributions guide.
ACC: If you are receiving ACC weekly compensation, KiwiSaver contributions may apply depending on your employment situation. See KiwiSaver while on ACC.
Redundancy: Redundancy payments are generally not subject to KiwiSaver contributions, and redundancy does not allow early withdrawal of your KiwiSaver balance.
Contribution Rates and PIE Tax Advantage
One often-overlooked benefit of contributing more to KiwiSaver is the PIE tax advantage. Investment returns inside your KiwiSaver fund are taxed at your PIR rate (maximum 28%), not your marginal income tax rate (which can be up to 39% for incomes over $180,000).
For high earners, every extra dollar invested in KiwiSaver effectively earns a 28% tax rate on returns, versus 39% outside KiwiSaver. This makes a higher contribution rate disproportionately valuable for higher-income earners. See the KiwiSaver tax guide.
Frequently Asked Questions
What is the minimum KiwiSaver contribution rate?
The minimum is 3% of your gross pay. You cannot contribute less than 3% through the normal payroll system — to contribute nothing, you must apply for a savings suspension.
Can I contribute more than 10%?
You cannot elect a rate higher than 10% through payroll. However, you can make additional voluntary lump sum contributions directly to your provider at any time, on top of your payroll rate. See voluntary contributions.
Does my contribution rate affect my tax?
No — KiwiSaver contributions are not tax-deductible from income tax. They are deducted from your gross pay before PAYE is calculated, but this does not reduce your taxable income. The tax advantage of KiwiSaver is in how investment returns are taxed inside the fund (at PIR, not your marginal rate).
What happens if I don’t choose a rate?
You default to 3% — the minimum rate. You can change this at any time.
Can my employer pay a higher rate than 3%?
Yes — some employers voluntarily match higher rates (e.g., 4% or 5%). This is worth checking in your employment agreement or with HR. If your employer matches 4%, choosing a 4% employee rate gives you a much better return on each extra contribution dollar.
Do contributions stop automatically if I leave a job?
Yes. Once you leave a job, payroll deductions stop. Your balance stays invested with your provider. If you start a new job, automatic enrolment applies again unless you have previously indicated your rate. You can also make voluntary contributions directly to your provider at any time between jobs.
Can I pause contributions?
Yes — via a savings suspension (previously called a contribution holiday). You must have been a KiwiSaver member for at least 12 months. Suspensions last up to 12 months and are renewable. See the contribution holiday guide.
At what age do employer contributions stop?
Employer contributions apply to employees aged 18–65. Above 65, you can still contribute personally but the employer obligation ends.
Key Takeaways
- Five rates are available: 3%, 4%, 6%, 8%, and 10% — all calculated on gross pay
- The default rate if you do not choose is 3%
- Your employer must add at least 3% on top — this is free money (though ESCT reduces the net amount)
- The government adds up to $521.43/year via the Member Tax Credit (requires $1,042.86 in personal contributions)
- You can change your rate at any time — just notify your employer
- The right rate depends on your income, debt, savings goals, and age
For advice specific to your situation, consider speaking with a licensed financial adviser. The FMA’s financial adviser register and sorted.org.nz can help you find one.