KiwiSaver Contribution Rates: How They Affect Your Pay

Your KiwiSaver contribution rate can be 3%, 4%, 6%, 8%, or 10% of your gross salary (IRD). The default rate is 3% (rising to 3.5% from 1 April 2026 and 4% from 1 April 2028). On an $85,000 salary, moving from 4% to 6% costs you $33 per week in take-home pay but could add roughly $200,000 to your retirement balance over 35 years. That's the core trade-off: less money now, more money later.

Use the Forge Money PAYE calculator to see exactly how each rate changes your take-home pay.

KiwiSaver contribution rates and the minimum rate change

The minimum employee and employer KiwiSaver contribution rate is changing: it's 3% until 31 March 2026, rising to 3.5% from 1 April 2026, and 4% from 1 April 2028 (IRD). The table below uses 4% (the rate applying from April 2028) as the employer contribution rate. If you're reading this before April 2028, the current employer minimum may be 3% or 3.5% — see the schedule above.

The table shows what each contribution rate means in real dollars for someone earning $85,000 per year (IRD, KiwiSaver Act 2006).

Rate	Your annual contribution	Employer contribution (4%)	Government contribution	Total going into your KiwiSaver
4%	$3,400	$3,400	$521	$7,321
6%	$5,100	$3,400	$521	$9,021
8%	$6,800	$3,400	$521	$10,721
10%	$8,500	$3,400	$521	$12,421

At every rate on an $85,000 salary, you contribute more than the $1,043 minimum needed to receive the full government member tax credit of $521 per year (IRD).

Your employer's minimum contribution is 3% (rising to 3.5% from 1 April 2026 and 4% from 1 April 2028) regardless of your chosen rate. Some employers contribute more, so check your employment agreement.

How contributions affect your take-home pay

Here's what you actually take home on an $85,000 salary at each KiwiSaver rate, after PAYE ($17,928), ACC earner's levy ($1,420), and KiwiSaver (IRD, ACC, 2025-26 rates):

KiwiSaver rate	Annual KiwiSaver	Annual take-home	Fortnightly take-home	Weekly take-home
3%	$2,550	$63,102	$2,427	$1,213
4%	$3,400	$62,252	$2,394	$1,197
6%	$5,100	$60,552	$2,329	$1,164
8%	$6,800	$58,852	$2,264	$1,132
10%	$8,500	$57,152	$2,198	$1,099

The difference between 4% and 6% is $1,700 per year, or about $33 per week. The jump from 4% to 10% is $5,100 per year, or roughly $98 per week. Whether that trade-off works depends on your current expenses, savings goals, and how far you are from retirement.

The employer contribution

Your employer is required to contribute a minimum of 3% of your gross salary to your KiwiSaver (rising to 3.5% from 1 April 2026 and 4% from 1 April 2028), on top of your own contribution (KiwiSaver Act 2006). This is real, additional money going into your retirement fund.

However, the employer contribution is taxed. It's subject to Employer Superannuation Contribution Tax (ESCT), which is based on your salary plus the employer contribution (IRD). ESCT rates match the income tax brackets:

Your salary + employer KS contribution	ESCT rate
$0 to $16,800	10.5%
$16,801 to $57,600	17.5%
$57,601 to $84,000	30%
$84,001 to $216,000	33%
$216,001+	39%

For someone on $85,000, the employer's $3,400 contribution (at 4%) is taxed at 33% ESCT. That means $1,122 goes to tax and $2,278 actually reaches your KiwiSaver account. On a $55,000 salary, the ESCT rate is 17.5%, so $1,815 of the $2,200 employer contribution reaches your account (IRD). Note: employer contributions are 3% until March 2026, rising to 3.5% from April 2026 and 4% from April 2028.

Even after ESCT, the employer contribution is free money. It's part of your total remuneration, but it only exists because you're in KiwiSaver.

The government contribution (member tax credit)

The government adds $0.50 for every $1 you contribute to KiwiSaver, up to a maximum of $521.43 per year. To receive the full amount, you need to contribute at least $1,042.86 during the year (IRD).

For anyone earning $35,000 or more at even the minimum 3% rate, you'll easily exceed the $1,043 threshold and get the full government contribution. If you're on a lower income or working part-time, it's worth checking that your contributions reach this level.

The member tax credit is calculated annually for the period 1 July to 30 June. You don't need to apply for it. Your KiwiSaver provider claims it from IRD automatically and credits it to your account, usually around September or October each year.

Long-term impact of different contribution rates

The table below shows the projected KiwiSaver balance at age 65 for someone currently aged 30, earning $85,000 per year.

Assumptions: 5% annual return after fees, 2% annual salary growth, employer contributes 4% (the rate from April 2028), full government member tax credit of $521 each year. All figures are nominal (not adjusted for inflation). These are rough projections to illustrate the difference between rates, not a prediction of actual returns. If the current employer rate is 3% or 3.5%, actual balances will be slightly lower in the early years.

KiwiSaver rate	Projected balance at 65	Extra vs 4% rate
4%	~$744,000	--
6%	~$944,000	+$200,000
8%	~$1,143,000	+$399,000
10%	~$1,342,000	+$598,000

Moving from 4% to 6% costs you $33 per week now but adds roughly $200,000 to your retirement balance over 35 years. Moving from 4% to 10% costs $98 per week and adds roughly $598,000. The compounding effect gets more dramatic at higher rates and longer timeframes.

These projections assume you stay employed at a growing salary for 35 years with consistent contributions. Actual results will vary based on fund performance, career changes, and contribution gaps (such as time overseas or savings suspensions).

Changing your contribution rate

You can change your KiwiSaver contribution rate at any time by telling your employer in writing. Most employers accept an email. You can also change your rate through myIR on the IRD website (IRD).

There's one restriction: if you're reducing your rate (for example, from 6% to 3%), you can only make that change once every three months. Increases can happen at any time. Your employer must action the change from your next pay cycle after they receive your request (KiwiSaver Act 2006).

If you're not sure which rate to pick, the default will be 4% from April 2028. The difference between 4% and 6% is relatively small on a weekly basis, but it compounds significantly over decades.

Savings suspension (contribution holiday)

If you need a break from KiwiSaver contributions, you can apply for a savings suspension (previously called a "contribution holiday") through myIR. You're eligible if you've been a KiwiSaver member for at least 12 months (IRD).

A savings suspension lasts between 3 months and 1 year. You can apply for another one when it expires. During the suspension, your employee contributions stop, your employer contributions also stop, and you won't receive the government member tax credit for the period you're not contributing.

There are some situations where a savings suspension makes sense, for example if you're dealing with financial hardship or saving for a house deposit outside KiwiSaver. Keep in mind that you'll also lose the employer and government contributions during any suspension period.

To apply, log in to myIR and look for the KiwiSaver section. You can choose the start date and duration. Your employer is notified automatically (IRD).

Worked examples

Example 1: $55,000 salary, 4% vs 6%

This example shows the impact of a rate change for someone earning $55,000 per year with 30 years until retirement. Examples use 4%, the default rate from 1 April 2028. The current rate may be 3% or 3.5% depending on when you're reading this — see the rate schedule above.

Take-home pay comparison (after PAYE of $8,721, ACC levy of $919):

	4% KiwiSaver	6% KiwiSaver	Difference
Annual KiwiSaver contribution	$2,200	$3,300	$1,100
Annual take-home	$43,160	$42,060	$1,100
Weekly take-home	$830	$809	$21

The weekly difference between 4% and 6% is about $21.

30-year KiwiSaver projection (assumptions: 5% return after fees, 2% salary growth, 4% employer contribution, $521 annual government contribution):

	4% rate	6% rate	Difference
Projected balance at 65	~$357,000	~$449,000	~$92,000

Giving up about $21 per week now could mean roughly $92,000 more at retirement. That's the power of compounding: your extra contributions, plus the growth on those contributions over 30 years, add up to significantly more than the raw dollar difference.

Example 2: $85,000 salary, 4% vs 6% vs 10%

This example shows the impact of larger rate changes for someone earning $85,000 with 35 years until retirement. Examples use 4%, the default rate from 1 April 2028.

Take-home pay comparison (after PAYE of $17,928, ACC levy of $1,420):

	4%	6%	10%
Annual KiwiSaver contribution	$3,400	$5,100	$8,500
Annual take-home	$62,252	$60,552	$57,152
Weekly take-home	$1,198	$1,166	$1,100
Weekly difference vs 4%	--	-$33	-$98

35-year KiwiSaver projection (assumptions: 5% return after fees, 2% salary growth, 4% employer contribution, $521 annual government contribution):

	4% rate	6% rate	10% rate
Projected balance at 65	~$744,000	~$944,000	~$1,342,000
Extra vs 4% rate	--	+$200,000	+$598,000

At 6%, you give up $33 per week in take-home pay and potentially gain $200,000 more at retirement. At 10%, you give up $98 per week and potentially gain $598,000 more. The trade-off depends on your current cost of living, whether you have a mortgage, and how far away retirement feels.

Common questions

Can I change my KiwiSaver contribution rate?

Yes. Tell your employer in writing (email is fine) or update it through myIR. If you're increasing your rate, the change takes effect from your next pay. If you're reducing it, you can only do so once every three months (IRD, KiwiSaver Act 2006).

What KiwiSaver contribution rates are available?

The available employee rates are 3%, 4%, 6%, 8%, and 10% of your gross salary. The default rate for new members is 3% (rising to 3.5% from 1 April 2026 and 4% from 1 April 2028). You can change your rate at any time by notifying your employer (IRD).

Does my employer have to contribute to my KiwiSaver?

Yes, if you're contributing. Your employer must contribute at least 3% of your gross salary (rising to 3.5% from 1 April 2026 and 4% from 1 April 2028). Some employers choose to contribute more. The employer contribution is taxed at the ESCT rate before it reaches your account (KiwiSaver Act 2006).

What is the government contribution to KiwiSaver?

The government contributes $0.50 for every $1 you put in, up to a maximum of $521.43 per year. You need to contribute at least $1,042.86 during the year (1 July to 30 June) to receive the full amount. Your KiwiSaver provider claims it automatically (IRD).

Can I take a break from KiwiSaver contributions?

Yes. After 12 months of membership, you can apply for a savings suspension through myIR. It lasts between 3 months and 1 year and can be renewed. During the suspension, both your and your employer's contributions stop, and you won't receive the government contribution (IRD).

Is KiwiSaver compulsory?

KiwiSaver is compulsory for new employees aged 18 to 64 when they start a new job, but you can opt out within 2 to 8 weeks of starting. Once you're a member, you can't leave the scheme entirely (you can only take a savings suspension). Self-employed people and people not in paid employment can join voluntarily (KiwiSaver Act 2006).

How much KiwiSaver will I have when I retire?

That depends on your salary, contribution rate, fund performance, and how many years you contribute. For rough estimates: someone on $85,000 contributing 4% from age 30 might have around $744,000 at 65, assuming 5% returns after fees, 4% employer contribution, and 2% salary growth. At 6%, that rises to around $944,000. Use a KiwiSaver calculator to model your specific situation.

Does KiwiSaver reduce my tax?

No. KiwiSaver contributions are deducted from your gross pay, but they don't reduce your taxable income. You pay PAYE on your full salary before KiwiSaver is deducted. However, your KiwiSaver contributions are not taxed again when they go into your fund (IRD). The returns inside your fund are taxed at your Prescribed Investor Rate (PIR).

Can I contribute more than 10%?

Not through the payroll deduction system. The maximum rate your employer can deduct is 10%. However, you can make voluntary additional contributions directly to your KiwiSaver provider on top of your payroll deductions. These extra contributions also count towards the government member tax credit if you haven't already hit the $521.43 cap (IRD).

What to do next

• Calculate your take-home pay at different KiwiSaver rates
• Understand how the ACC levy works and what it costs you
• Learn about NZ tax brackets and how PAYE is calculated

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Last updated: 28 March 2026. Sources: IRD (ird.govt.nz), KiwiSaver Act 2006. This is educational content, not financial advice.