Do I Need To File A Tax Return?
You need to file an individual income tax return, an IR3, if you received more than $200 before tax in income Inland Revenue has not been told about, even for part of the year. If every dollar you earned had tax deducted at source, you do not file a return at all. Inland Revenue assesses you automatically.
The whole test is one number: $200
Inland Revenue's rule is short. You complete an individual income tax return at the end of the tax year if you received more than $200 before tax in income it has not been told about, even if that was only for part of the year.
Everything else follows from that. The question is never how much you earned, or whether you had more than one job, or whether you think you are owed a refund. It is only whether more than $200 reached you without Inland Revenue seeing it.
Income Inland Revenue already knows about
Payers report these directly, so none of it counts towards the $200. This is why most salary and wage earners never file a return.
| Income | Reported by | Counts towards the test? |
|---|---|---|
| Salary or wages with PAYE deducted | Your employer, every payday | No |
| Benefits and taxable pensions | The payer | No |
| Bank interest with RWT deducted | Your bank | No |
| KiwiSaver or other PIE income | Your provider | No |
| Schedular payments with tax withheld | The payer | No, but expenses may still need a return |
| Self-employed or contracting income with no tax deducted | Nobody | Yes |
| Rental income | Nobody | Yes |
| Overseas income | Nobody | Yes |
| Cash work | Nobody | Yes |
Do not file in April. Wait until June
The tax year ends on 31 March, and myIR will let you start a return straight away. Filing then is the most common avoidable error, because everyone who paid you still has to report those payments to Inland Revenue first.
That reporting covers salary and wages, benefits and taxable pensions, interest, and KiwiSaver or other PIE income. Until it has arrived, your return is incomplete, and Inland Revenue's own guidance is to wait until June. A return filed against missing information has to be corrected later.
An IR3 is not the same as being assessed
These are two different processes and the distinction decides what you have to do at the end of the year.
- An income tax assessment happens to you. Inland Revenue works out your tax from information it already holds and sends you the result, showing a refund or an amount to pay. You may be asked for more information, and it is still an assessment rather than a return.
- An IR3 is a return you complete. It tells Inland Revenue about income for the year and any expenses you are claiming, then calculates whether you are due a refund or have tax to pay.
Being asked for more information about an assessment is not the same as being asked to file an IR3. If Inland Revenue wants a return, it will say so.
The deadline, and getting longer
| What | When |
|---|---|
| Tax year covered | 1 April 2026 to 31 March 2027 |
| Earliest sensible filing date | June |
| Return due | 7 July |
| With a tax agent | Later, spread across the year |
| With an extension of time | Later, if granted |
An extension of time can be applied for by individuals, trusts and companies, and spreads filing across the year rather than concentrating it on 7 July. It has to be granted, so it is not something to assume.
Inland Revenue's own extension tool is invisible to search engines
The page that explains whether you can get more time to file carries an interactive tool to answer the question. To anything that cannot run JavaScript, including search engines and AI assistants reading the page, it renders as "No Outcome Available" with no logic behind it. That is the third Inland Revenue tool on this site's topics to do the same thing, alongside the ESCT rate wizard and the PIR finder. Where a rule is only reachable through a widget, this site publishes it as text.
Filing a return and getting a refund are different questions
These get conflated constantly. If your only income was salary or wages, any PAYE you overpaid comes back through the automatic assessment, and you file nothing to get it. An IR3 exists to declare income that was never taxed, which more often produces tax to pay than a refund. If you are asking whether you are owed money, the tax refund page is the one that answers it. If you are asking whether you have an obligation, you are on the right page.
Next
- Tax refundWhether you are owed anything
- NZ tax yearWhat ends on 31 March
- Schedular paymentsContractor income and the return that follows
- IR330CGetting the withholding rate right first
- take-home pay calculatorCheck the PAYE deducted during the year
Common questions
Do I need to file a tax return in New Zealand?
Only if you received more than $200 before tax in income Inland Revenue was not told about, even for part of the year. If all your income was salary or wages with PAYE deducted, plus interest and dividends already taxed at source, you almost certainly file nothing.
What is the difference between an IR3 and an income tax assessment?
An assessment is done for you from information Inland Revenue already holds. An IR3 is a return you complete yourself, because there is income Inland Revenue cannot see. The first is the default for wage earners, the second is the exception.
When is the tax return deadline in NZ?
7 July, for the tax year ended 31 March, unless you have a tax agent or an extension of time. The tax year runs 1 April to 31 March.
Should I file my IR3 as soon as the tax year ends?
No. Payers must report first, including salary and wages, benefits and taxable pensions, interest, and KiwiSaver or other PIE income. Filing before that lands produces an incomplete return, so Inland Revenue's guidance is to wait until June.
Do I file a tax return to get a refund?
Usually not. On salary or wages, an overpayment comes back through the automatic assessment with nothing to file. An IR3 is about declaring income Inland Revenue cannot see, which more often produces tax to pay. See tax refunds.
What if I am not a New Zealand tax resident?
You file an IR3NR, the non-resident version. Which return applies depends on your tax residency for the year, not on where you were living when the year ended.
Where these figures come from
2026–27 tax year (1 April 2026 – 31 March 2027). Last verified 30 July 2026.
Related
- Tax refundWorking out whether you are owed money
- NZ tax yearThe 1 April to 31 March cycle
- Schedular paymentsContractor income, and why it often means an IR3
- NZ tax codesGetting the deductions right during the year
- take-home pay calculatorWhat should have come off each payday