How Bonuses and Commission Are Taxed in NZ (2026/27)
Bonuses and one-off commission payments are not taxed at a special punitive rate — they’re taxed as “extra pay,” using a flat rate based on your own annualised income, including the bonus. Regular commission paid alongside normal wages is usually just taxed through ordinary PAYE, not the extra pay method — the distinction depends on whether the payment is regular or a one-off.
See your regular take-home pay for comparison with our free PAYE Calculator.
This guide provides general estimates only, not personalised financial advice. Individual payslips can vary based on tax code, allowances, and specific employer arrangements.
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The Biggest Myth About Bonus Tax in NZ
A lot of people believe bonuses & commission taxed at some arbitrary, punishing flat rate — “40% just for bonuses” is a common but inaccurate claim. The reality: the flat rate applied is based entirely on your own income level, calculated to approximate what you’d have paid if the bonus had simply been part of your regular annual salary all along. A lower earner receiving a bonus is taxed at a much lower flat rate than a high earner receiving the same size bonus — it’s proportional to you, not a fixed penalty rate on bonuses generally.
How the “Extra Pay” Calculation Actually Works
IRD classifies bonuses, one-off commission payments, and cashed-up leave as “extra pay,” taxed using this method:
- Annualise your recent income — take your last 4 weeks’ gross pay and multiply by 13 (or the equivalent for other pay frequencies).
- Add the bonus/lump sum to that annualised figure.
- Find the matching flat rate from IRD’s table, based on the combined total.
- Apply that single flat rate to the bonus only — not to your regular pay, which continues to be taxed normally.
The 2026/27 Flat Tax Rates for Bonuses (Including ACC)
Unlike redundancy payments (which use a separate rate table that excludes ACC), bonuses and most other lump sums use rates that include the 1.75% ACC earner’s levy blended in:
| Combined annualised income + bonus | Flat rate (including ACC) |
|---|---|
| Up to $15,600 | 12.25% |
| $15,601 – $53,500 | 19.25% |
| $53,501 – $78,100 | 31.75% |
| $78,101 – $156,641 | 34.75% |
| $156,642 – $180,000 | 33% (ACC cap reached, so ACC no longer added) |
| $180,001+ | 39% |
(Source: Inland Revenue — Calculate PAYE for a lump sum payment.)
Compare this to redundancy pay, which uses a rate table excluding ACC entirely — see our full How Is Redundancy Pay Taxed in NZ? guide for that specific treatment.
Does KiwiSaver Apply to a Bonus?
Yes — and this is a genuine point of difference from redundancy pay. KiwiSaver deductions are made from most bonus and lump sum payments, at the same contribution rate as your normal pay (commonly 3.5% from 1 April 2026). This is one of two things that make bonus taxation meaningfully different from redundancy taxation, the other being the ACC-inclusive rate table above.
Worked Example — A $10,000 Bonus
Priya earns $85,000/year and receives a $10,000 bonus. Her employer annualises her recent pay to confirm her income bracket, then applies the matching flat rate to the bonus specifically.
| Step | Calculation | Result |
|---|---|---|
| Annualised income + bonus | $85,000 + $10,000 | $95,000 |
| Matching flat rate | Falls in the $78,101–$156,641 band | 34.75% |
| PAYE on the bonus | $10,000 × 34.75% | $3,475.00 |
| KiwiSaver on the bonus (3.5%) | $10,000 × 3.5% | $350.00 |
| Net bonus received | $10,000 − $3,475 − $350 | $6,175.00 |
If Priya has a student loan, repayment would apply on top at 12% of the portion above her threshold — see our Student Loan Calculator for the exact figure.
How Regular Commission Is Different From a One-Off Bonus
This is a genuinely important distinction many people miss. If commission is paid regularly as part of your normal pay cycle (e.g., monthly, alongside your base salary), it’s typically just added to that pay period’s gross earnings and taxed through ordinary PAYE — no special flat rate involved. The extra pay / lump sum method specifically applies to irregular, one-off payments — a single annual bonus, a one-time sales incentive, or a payment that falls outside your normal, predictable pay pattern.
Practical implication: a salesperson earning steady monthly commission sees it taxed the same way as their base salary, progressively. A salesperson receiving one large, irregular year-end bonus sees that specific payment taxed under the extra pay flat-rate method instead.
What If Too Much Tax Was Withheld From Your Bonus?
Because the extra pay method estimates your bracket using recent pay rather than your exact full-year income, it can occasionally over- or under-withhold slightly. If you were taxed too much across the year — including on a bonus — this typically shows up as a refund in IRD’s automatic income tax assessment. See our Tax Refund Calculator to estimate whether you’re likely owed money back.
Frequently Asked Questions
Do bonuses get taxed in NZ?
Yes. Bonuses are generally taxable in New Zealand and are subject to PAYE. Your employer calculates the required PAYE deduction based on the bonus, your regular pay, and the applicable IRD rules for lump-sum payments. Other deductions, such as KiwiSaver and student loan repayments, may also apply depending on your circumstances.
How do I calculate a bonus after tax in New Zealand?
To estimate your after-tax bonus, start with the gross bonus amount and subtract the applicable PAYE and any other deductions that apply to you. The exact amount depends on your total income, tax code, payment frequency, and whether deductions such as KiwiSaver or student loan repayments apply.
For a quick estimate, use the NZ PAYE Calculator to compare your gross bonus with your estimated take-home amount.
How much tax will I pay if I get a bonus in NZ?
A bonus is generally treated as taxable income in New Zealand, so your employer will deduct PAYE tax from it. The amount deducted depends on factors such as your total earnings, tax code, and the size and timing of the bonus. A bonus does not automatically have one fixed tax rate; PAYE is calculated using the applicable IRD rules for lump-sum payments.
Your take-home bonus is therefore the gross bonus minus PAYE and any other applicable deductions, such as KiwiSaver or student loan deductions.
Are bonuses taxed at a higher rate than normal income in NZ?
Not really — bonuses use a flat rate calculated from your own annualised income, designed to approximate the same tax you’d pay if the bonus were simply part of your regular salary. It isn’t an arbitrary punitive rate, though it can feel that way since the whole bonus is taxed at one flat rate rather than progressively.
Is commission taxed differently from a salary in NZ?
Regular commission paid alongside normal wages is typically taxed through ordinary PAYE, the same as salary. Only irregular, one-off commission payments are taxed using the extra pay flat-rate method, similar to a bonus.
Does KiwiSaver get deducted from a bonus?
Yes, KiwiSaver is deducted from most bonus and lump sum payments at the employee’s normal contribution rate — unlike redundancy payments, which are specifically exempt from KiwiSaver deductions.
What’s the maximum tax rate on a bonus in NZ?
39%, if your combined annualised income and bonus exceeds $180,000 — the same top marginal rate that applies to regular income above that threshold.
Can I get money back if too much tax was taken from my bonus?
Potentially, yes. If the extra pay method over-withheld relative to your actual full-year tax position, this is typically corrected through IRD’s automatic income tax assessment, which may result in a refund.
