To work out your take-home pay in New Zealand, start with your gross pay and subtract PAYE income tax, the ACC earners' levy, and any KiwiSaver, student loan or other deductions. A PAYE calculator NZ workers can use does this in seconds. You enter your salary, pay frequency, tax code, KiwiSaver rate and student loan status, and it shows your net pay.
What is PAYE and how does it work in NZ?
PAYE stands for Pay As You Earn. It is the main way income tax is collected in New Zealand. Your employer works out the tax on each payment, takes it from your pay, and sends it to Inland Revenue (IRD). You never handle that money yourself.
PAYE applies to employees, and also to people who receive taxable benefits or pensions. The payer, not you, is responsible for deducting it and paying it to IRD.
It works differently from the tax paid by self-employed people. Contractors and sole traders usually pay their tax in instalments, often called provisional tax, based on their business profit. If that is you, the Sole Trader & Provisional Tax Calculator NZ is the more relevant tool.
What deductions are taken from my pay?
Up to five things can come out of your gross pay: PAYE income tax, the ACC earners' levy, KiwiSaver, student loan repayments and a few less common items. Which ones apply depends on your situation. The table shows what each one is and what sets the amount.
| Deduction | What it is | What decides the amount |
|---|---|---|
| PAYE income tax | Your income tax, the largest deduction for most people | Your income, tax code and the current tax rates |
| ACC earners' levy | Your contribution to the ACC scheme for accident cover | A rate set by ACC each year, applied to your earnings up to a cap |
| KiwiSaver | Your own contribution to your retirement savings | The percentage you or your employer set, applied to gross pay |
| Student loan | Compulsory repayments if you have an IRD student loan | Your income above the repayment threshold |
| Other | Child support, union fees, extra tax on a second job | Court or IRD notices, or your own agreement |
The ACC rate and the earnings cap change over time. Check the current figures on ACC's earners' levy information rather than relying on an old payslip.
How do I calculate my PAYE tax?
Calculating PAYE means finding your tax code, applying the tax rate for each slice of your income, adding the slices together, and spreading the result across your pay periods. Doing it by hand is useful for understanding your payslip. For an exact figure, use a calculator.
Step 1: Confirm your tax code
Your tax code tells your employer how much tax to take. Most people with one job use code M. If you have a second job, secondary-income codes such as S, SH, ST or SB apply, depending on your total income. If you have a student loan, "SL" is added to the code. Some codes, such as ME, appear in older guides, so check IRD for the codes currently in use.
Step 2: Apply the progressive tax rates
New Zealand uses tax brackets. Each rate applies only to the slice of income inside that bracket, not to your whole salary. Earning more never makes you take home less overall. Get the current brackets and rates from IRD, because they can change between tax years.
Step 3: Work through the method
- Take your annual taxable income.
- Multiply the part of it in the first bracket by that bracket's rate.
- Multiply the part in the next bracket by its rate, and repeat for each bracket your income reaches.
- Add the results to get your annual tax.
- Divide by your number of pay periods (52 weekly, 26 fortnightly, 12 monthly) for a rough per-pay figure.
For example, if your salary reaches into the second bracket, your tax is the first bracket's full amount at its rate, plus only the income above that point at the second rate. Payroll systems follow IRD's own calculation rules, so your payslip can differ slightly from simple division.
Why use a PAYE calculator for accurate estimates?
A calculator applies the current rates, the ACC levy and your other deductions together, so you avoid arithmetic slips and out-of-date rates. It also lets you test changes, such as a different KiwiSaver rate, in seconds.
What you need to enter in a PAYE calculator NZ
- Your gross salary or wage.
- How often you are paid (weekly, fortnightly or monthly).
- Your tax code.
- Your KiwiSaver employee rate, if you are a member.
- Whether you have a student loan.
How to read the result
Good results show each deduction on its own line, then your net pay. Compare the PAYE and ACC lines with your payslip first. Then check KiwiSaver and student loan, which most often explain a gap. You can try this with the New Zealand PAYE Calculator.
What can change my take-home pay?
Your take-home pay changes whenever your income, tax code or deductions change. Most fluctuations come from a small set of causes.
- Overtime, bonuses and lump sums. Extra payments can be taxed differently from regular pay. Use the NZ Bonus & Lump Sum Tax Calculator to see the effect.
- A new tax code. Moving from a main-income code to a secondary-income code usually raises the tax taken.
- A KiwiSaver rate change. A higher rate lowers each payslip but increases your savings.
- Starting or finishing a student loan. Repayments appear or disappear from your pay.
- Year-end results. If too much or too little tax was taken, you may get a refund or a bill. The NZ Tax Refund Estimator gives a rough idea.
What PAYE and tax code mistakes should I avoid?
The most common mistake is being on the wrong tax code. It leads to too much tax being taken during the year, or a bill afterwards. A few other slips are just as easy to make.
- Wrong code for your situation. A second job on the main-income code means too little tax is withheld, and you may owe tax later.
- Not updating after a life change. Taking a second job, finishing a student loan, or changing your hours can all mean your code needs to change.
- Mixing up allowances and reimbursements. Allowances are generally taxable income. Reimbursements for actual work costs are generally not. Check how your employer treats each one.
- Forgetting the ACC levy. If you leave it out of your sums, your estimate will be too high.
What should I do next after calculating my PAYE?
Compare your calculator result with your latest payslip, line by line. If the PAYE figure is far off, check that your tax code, KiwiSaver rate and student loan status match what you entered.
If your tax code is wrong, you can update your details through your myIR account or by contacting IRD. Your employer then uses the corrected code from the next pay run.
Once the figures agree, build your budget around your net pay, not your salary. When you need other numbers, a salary-to-hourly converter, an overtime calculator or a pro rata calculator can help. The New Zealand Salary to Hourly Rate Calculator (with Minimum Wage Check) is a good place to start if you are comparing pay offers.
