PAYE for NZ employers: How to calculate, deduct, and file correctly

Published Thursday 22 October 2026

Table of contents

• What is PAYE and why does it matter for employers?
• How to register as a PAYE employer with IRD
• Understanding NZ tax codes
• PAYE tax rates in New Zealand for 2026
• How to calculate PAYE
• What is payday filing and how does it work?
• When to pay PAYE to IRD
• Common PAYE mistakes and how to avoid them
• Penalties for PAYE non-compliance
• Simplify PAYE with Xero
• FAQs on PAYE for NZ employers

Key takeaways

• PAYE (Pay As You Earn) is the income tax you deduct from employee wages and pay to Inland Revenue (IRD) on their behalf, and it’s a legal requirement for every NZ employer.
• New Zealand has five progressive income tax brackets ranging from 10.5% to 39%, plus additional deductions like ACC earners’ levy, KiwiSaver contributions and student loan repayments.
• Payday filing is mandatory for all NZ employers, meaning you must submit employment information to IRD every time you run a pay cycle, within two working days if you file electronically.
• Using payroll software automates PAYE calculations and payday filing, reducing the risk of errors, missed deadlines and penalties.

What is PAYE and why does it matter for employers?

PAYE (Pay As You Earn) is the system New Zealand employers use to deduct income tax from employee wages and pay it directly to Inland Revenue (IRD). As an employer, you act as a tax agent, collecting the right amount of tax each pay cycle so your employees don’t face a large tax bill at the end of the year.

PAYE covers more than just income tax. You’re also responsible for deducting:

• Accident Compensation Corporation (ACC) earners’ levy, which funds New Zealand’s accident compensation scheme
• KiwiSaver employee contributions, if your employee is enrolled
• Student loan repayments, if your employee has an outstanding student loan
• Child support deductions, if directed by IRD

These obligations apply from the moment you hire your first employee. Getting PAYE right keeps you on the right side of the law and ensures your team is paid correctly.

If you don’t deduct and pay the correct amounts, you could face penalties from IRD, including late payment charges and use-of-money interest. For a broader overview of managing employees’ pay, see this guide to payroll.

How to register as a PAYE employer with IRD

You need to register as an employer with IRD before your first pay run. Registration is straightforward and can be done online through your myIR account.

1. Log in to your myIR account at ird.govt.nz. If you don’t have a myIR account yet, you can create one using your existing IRD number.
2. Choose the option to register as an employer.
3. Provide your business details, including your business IRD number and contact information.
4. Choose your filing frequency and payment method.
5. Set up your account for payday filing so you can submit employment information electronically each pay cycle.

Once registered, you’ll receive confirmation and can start processing payroll. Keep your employer IRD number handy as you’ll need it for every filing.

Understanding NZ tax codes

Tax codes tell you how much PAYE to deduct from each employee’s pay. Every employee should give you a tax code on their IR330 tax code declaration when they start, and it’s your responsibility to apply the correct one.

If an employee doesn’t give you a completed IR330, you must apply the non-declaration rate of 45%. This gives employees a strong reason to provide their details promptly.

PAYE tax codes

Most of your employees will use one of a small set of codes. These are the ones you’ll see most often:

• M: main employment, no student loan
• M SL: main employment, with a student loan
• ME: main employment, eligible for the independent earner tax credit, no student loan
• S: secondary employment, taxed at 17.5%
• SH: secondary employment, taxed at 30%
• ST: secondary employment, taxed at 33%
• SA: secondary employment, taxed at 39%
• ND: non-declaration rate of 45%, used when there’s no completed IR330

Once you know the code, IRD’s PAYE deduction tables show how much to deduct for each pay amount. The IR340 covers weekly and fortnightly pay, and the IR341 covers four-weekly and monthly pay; you’ll find both on ird.govt.nz under forms and guides.

Primary vs secondary tax codes

An employee uses a primary tax code (such as M or ME) for their main job, where their income is taxed at progressive rates. If they have a second job, they need a secondary tax code (SB, S, SH, ST or SA) for that role, where SB taxes the secondary earnings at 10.5%.

Secondary tax codes apply a flat rate to the entire income from the second job, rather than progressive rates. The correct secondary code depends on the employee’s total expected annual income from all sources.

Your employee chooses the right code based on their circumstances, but you should check that the code they’ve provided matches their employment type with your business.

PAYE tax rates in New Zealand for 2026

New Zealand uses five progressive income tax brackets, meaning higher portions of income are taxed at higher rates. Here are the current annual thresholds for the 2026–27 tax year (1 April 2026 to 31 March 2027):

• $0 to $15,600: taxed at 10.5%
• $15,601 to $53,500: taxed at 17.5%
• $53,501 to $78,100: taxed at 30%
• $78,101 to $180,000: taxed at 33%
• $180,001 and above: taxed at 39%

On top of income tax, you must deduct the ACC earners’ levy from each employee’s wages. From 1 April 2026, the ACC earners’ levy rate is 1.75% of an employee’s earnings, up to a maximum earnings threshold set by ACC each year.

Your employee doesn’t pay their highest rate on every dollar they earn. For example, an employee earning $60,000 a year pays 10.5% on the first $15,600, then 17.5% on the next $37,900 (up to $53,500), and 30% on the remaining $6,500.

This progressive structure means the effective tax rate is always lower than the top marginal rate. The next section shows how to turn these bands into a deduction for each pay.

How to calculate PAYE

To calculate PAYE, apply the tax rates for each band of your employee’s tax code to their taxable pay. Then add the 1.75% ACC earners’ levy.

Calculating PAYE correctly each pay cycle is one of your core responsibilities as an employer. Follow these steps each pay cycle:

1. Determine the employee’s gross pay for the period. Add up all taxable earnings, including salary or wages, overtime, bonuses and any other taxable allowances for the pay period.
2. Identify the correct tax code. Check the IR330 form your employee has provided. Apply the tax code that matches their employment type and circumstances.
3. Use IRD’s PAYE calculator or deduction tables. IRD provides a free online PAYE calculator and downloadable deduction tables. Enter the gross pay, tax code and pay frequency to get the PAYE amount.
4. Calculate the PAYE amount based on pay frequency. The tax tables are structured by pay frequency (weekly, fortnightly, four-weekly or monthly), so make sure you’re using the right table for your pay cycle.
5. Add the ACC earners’ levy deduction. Calculate 1.75% of the employee’s gross earnings and add this to the PAYE deduction amount.

Working through a real pay amount makes these steps easier to follow. Here’s a weekly example using the most common tax code.

Worked example of PAYE calculation

Say you pay an employee $1,000 a week ($52,000 a year) on tax code M. The annual bands are 10.5% up to $15,600, 17.5% up to $53,500, 30% up to $78,100, 33% up to $180,000 and 39% above that.

Because $52,000 sits inside the 17.5% band, the 30%, 33% and 39% bands don’t apply at this pay level. Here’s how the weekly deduction works out:

• 10.5% on the first $15,600 = $1,638.00
• 17.5% on the next $36,400 ($15,600–$52,000) = $6,370.00
• Annual tax of $8,008.00 ÷ 52 = $154.00 a week
• ACC earners’ levy of $1,000 × 1.75% = $17.50
• Total weekly deduction of about $171.50

Before you pay, check the result against IRD’s PAYE calculator, because IRD’s tables can round differently by a few cents. To see how an employee’s yearly tax adds up across every band, try this income tax calculator.

PAYE and ACC aren’t the only amounts that come out of each pay. Depending on your employee’s situation, you may need to deduct more.

Other deductions employers must make

Beyond PAYE and ACC, you may need to make other deductions from your employee’s pay each cycle.

• KiwiSaver employee contributions: If your employee is enrolled in KiwiSaver, deduct their chosen contribution rate (3.5%, 4%, 6%, 8% or 10%; 3.5% is the default). You must also pay a minimum employer contribution of 3.5% on top of their pay, rising to 4% from 1 April 2028. If an employee has an approved temporary rate reduction to 3%, you can match it at 3%. Employer contributions are subject to employer superannuation contribution tax (ESCT). This guide to KiwiSaver employer contributions explains how ESCT works.
• Student loan repayments: If your employee has a student loan and earns above the repayment threshold, you deduct 12% of every dollar they earn above that threshold. The tax code on their IR330 will include an “SL” suffix if student loan deductions apply.
• Child support: If IRD notifies you that an employee has child support obligations, you must deduct the specified amount and pass it on to IRD.

Once you’ve worked out every deduction, you need to report it to IRD. That’s where payday filing comes in.

What is payday filing and how does it work?

Payday filing means submitting your employees’ pay information to IRD every time you run a pay cycle. It’s been mandatory for all New Zealand employers since 1 April 2019, replacing the old monthly employer returns.

If you file electronically, you must file within two working days of each payday; paper filers have 10 working days. The information you submit includes each employee’s name, IRD number, tax code, gross earnings, PAYE deducted, KiwiSaver contributions, and any student loan or child support deductions.

Payday filing gives IRD real-time visibility of employment information, which helps ensure employees’ tax records stay accurate. For you as an employer, it means smaller, more frequent filings rather than one large monthly return. You can learn more about how payday filing works in practice by checking out this helpful guide.

Electronic vs paper filing

If your annual PAYE and ESCT deductions total $50,000 or more, you’re required to file electronically. If you’re under that threshold, you can choose to file on paper, but electronic filing is faster and reduces the risk of errors.

There are three main ways to file electronically:

• Payroll software with direct integration: Many payroll solutions connect directly to IRD’s systems, filing automatically each time you process a pay run.
• myIR file upload: You can upload a formatted file through your myIR account.
• myIR online form: You can enter the details manually through the online payday filing portal in myIR.

Filing is only half the job. You also need to pay the PAYE you’ve deducted on time.

When to pay PAYE to IRD

You need to pay the PAYE you’ve deducted to IRD by set due dates each month. Missing these dates can trigger penalties and interest charges.

For most employers, PAYE for a month is due by 20 of the following month. For example, PAYE deducted in June is due by 20 July.

If you’re a large employer with annual PAYE and ESCT deductions of $500,000 or more, you pay twice a month: deductions from the 1–15 of the month are due by 20 of that month, and deductions from the 16 to month end are due by 5 of the following month.

If a due date falls on a weekend or public holiday, payment is due on the next working day. Setting up a direct debit through your myIR account can help you avoid missed payments, as IRD will automatically collect the amount owed on the due date.

Common PAYE mistakes and how to avoid them

Even experienced employers can slip up with PAYE. Here are the most common mistakes and how to steer clear of them.

• Using the wrong tax code: Always check the IR330 form your employee provides. If they change jobs or circumstances, ask them for an updated form. Applying the wrong code means deducting too much or too little tax.
• Miscalculating deductions for variable pay: Bonuses, overtime and commission payments can change the PAYE amount. Use IRD’s PAYE calculator to check deductions whenever pay varies from the norm.
• Missing filing deadlines: Payday filing must be completed within two working days of each payday. Set reminders or use payroll software that files automatically so you don’t fall behind.
• Forgetting to deduct KiwiSaver or student loan repayments: Check each employee’s tax code and enrolment status carefully. Missing these deductions means you may need to cover the shortfall yourself.
• Not updating rates after annual changes: Tax rates, ACC earners’ levy rates and repayment thresholds can change each tax year. Review your payroll settings at the start of each April to stay current.
• Not filing new employee details on time: When you hire someone new, you need to submit their details to IRD promptly. Delays can lead to incorrect tax code assignments and compliance issues.

Avoiding these mistakes matters because IRD can charge for each one. Here’s what’s at stake.

Penalties for PAYE non-compliance

IRD takes employer PAYE obligations seriously, and there are real consequences for getting it wrong. Understanding the penalty structure helps you prioritise compliance.

• Late filing penalties: If you miss a payday filing deadline, IRD can charge a late filing penalty of $250. IRD usually sends a warning the first time you file late and can apply the penalty if you file late again within 12 months.
• Late payment penalties: If you don’t pay the PAYE you’ve deducted by the due date, you’ll face an initial late payment penalty of 1% of the unpaid amount, followed by an additional 4% if it remains unpaid after seven days. A further 1% monthly penalty applies on any balance still outstanding.
• Use-of-money interest: IRD charges interest on any tax that’s overdue, and it can add up quickly on larger amounts.
• Shortfall penalties: If you file incorrect returns, IRD can impose shortfall penalties of 20% to 150% of the tax shortfall, depending on whether the error was careless, deliberate or fraudulent.

If you discover an error in a past filing, correct it as soon as possible through your myIR account. IRD generally treats voluntary disclosures more favourably than errors discovered during an audit.

Simplify PAYE with Xero

Managing PAYE, KiwiSaver, student loans and payday filing by hand takes time and leaves room for costly errors. Payroll software takes the manual work out of the equation.

With Xero’s payroll, PAYE calculations happen automatically each pay run, based on up-to-date tax tables and your employees’ tax codes. Payday filing is built in, so your employment information goes straight to IRD without extra steps. You can see your payday filing history in one place, making it easier to plan for upcoming payments and stay on top of deadlines.

Ready to spend less time on payroll admin? Get one month free.

FAQs on PAYE for NZ employers

Here are answers to common questions NZ employers have about PAYE.

What is the formula for calculating PAYE?

PAYE is calculated using IRD’s progressive tax tables based on your employee’s gross pay, tax code and pay frequency. There isn’t a single formula; instead, each portion of income is taxed at the marginal rate for the bracket it falls into, and the amounts are totalled to give the PAYE deduction for that pay period.

Do you need to deduct PAYE for contractors?

No, PAYE only applies to employees. Independent contractors are responsible for managing their own tax obligations, including paying provisional tax and filing their own returns with IRD.

What happens if you forget to deduct PAYE?

You’re still liable for the PAYE that should have been deducted, even if you didn’t withhold it from your employee’s pay. IRD can pursue you for the unpaid amount, plus late payment penalties and use-of-money interest.

How often do PAYE tax rates change in New Zealand?

Income tax rates and thresholds are set by legislation and don’t change every year, but related rates like the ACC earners’ levy are reviewed annually. Check IRD’s website each April to confirm the rates for the new tax year.