Your KiwiSaver contribution rate determines how much of your gross (before-tax) pay goes into your KiwiSaver account each pay period — and it directly affects how fast your savings grow. From 1 April 2026, the minimum (default) rate rose from 3% to 3.5% for both members and employers, with a further increase to 4% scheduled for 1 April 2028.
Available Contribution Rates in 2026
- 3.5% — Minimum and default rate (since 1 April 2026)
- 4% — Slightly above the minimum; will become the new minimum in 2028
- 6% — Moderate rate
- 8% — High rate
- 10% — Maximum standard rate
The old 3% rate is no longer a standard option. Members who were on the 3% default were moved to 3.5% automatically from their first pay on or after 1 April 2026. If 3.5% would cause financial difficulty, you can apply in myIR for a temporary rate reduction back to 3%, lasting from 92 days up to one year — or apply for a savings suspension.
How It Works
Your contribution is calculated as a percentage of your gross pay (before tax and other deductions). For example, if you earn $60,000 per year and choose a 6% contribution rate:
- Your annual KiwiSaver contribution = $3,600
- Paid fortnightly: ~$138 per pay period
Note: Some employers calculate on gross earnings, some on base salary — check your employment agreement.
How Your Contribution Affects Your Take-Home Pay
| Salary | 3.5% | 4% | 6% | 8% | 10% |
|---|---|---|---|---|---|
| $50,000 | $1,750/yr | $2,000/yr | $3,000/yr | $4,000/yr | $5,000/yr |
| $65,000 | $2,275/yr | $2,600/yr | $3,900/yr | $5,200/yr | $6,500/yr |
| $80,000 | $2,800/yr | $3,200/yr | $4,800/yr | $6,400/yr | $8,000/yr |
| $100,000 | $3,500/yr | $4,000/yr | $6,000/yr | $8,000/yr | $10,000/yr |
Remember that the employer contribution (minimum 3.5% since 1 April 2026) is paid on top of your salary — it is not deducted from your pay.
Changing Your Contribution Rate
You can change your KiwiSaver contribution rate at any time by filing a KiwiSaver deduction form (KS2) with your employer. The change takes effect from your next pay period and there are no penalties for changing your rate.
Which Rate Should You Choose?
- 3.5% — The new minimum: enough to get your full employer match and the government contribution. Best if you're on a tight budget.
- 4–6% — Good middle ground for most people, especially if you're saving for a first home.
- 8–10% — If you want to maximise retirement savings and can afford the lower take-home pay.
Anything above 3.5% is a personal choice — your employer only has to contribute the minimum. But note the Government only matches your contributions up to $1,042.86 per year (a maximum top-up of $260.72), so extra contributions beyond that point are purely for your own retirement growth.
Common Mistakes
- Assuming 3% is still the default — since 1 April 2026 the minimum is 3.5%; staying on 3% requires an approved temporary reduction.
- Not checking your pay slip after the rate change — confirm your employer applied 3.5% (or the rate you chose) from the first pay on or after 1 April 2026.
- Dropping your rate when you don't need to — a temporary reduction to 3% shrinks both your savings and your employer match.
- Ignoring the $1,042.86 threshold — at 3.5% on a low income, you may need a voluntary top-up before 30 June to get the full $260.72 government contribution.
What One Extra Percent Is Worth
Raising your rate by one percentage point on a $70,000 salary adds $700 a year to your KiwiSaver. Invested at a hypothetical 5% average return over 40 years, that extra $700 a year compounds to roughly $85,000 at retirement. Over a full career, the difference between 3.5% and 8% can exceed $300,000 — which is why the rate you choose matters far more than the fund you pick.
Temporary Rate Reduction and Savings Suspension
If the 3.5% minimum is unaffordable, you can apply in myIR for a temporary rate reduction to 3%, lasting from 92 days up to one year — your employer's contribution drops to match. A savings suspension (formerly a contributions holiday) pauses your contributions entirely for up to one year, but your employer must keep contributing if you're a member. Both are safety valves, not free passes: while suspended or reduced, you miss out on employer matching and government contribution growth.