7 April 路 Official deadline
Terminal tax due
Last day to pay any balance from last year's return without interest.
ird.govt.nzNew Zealand filing, penalties and appeals
New Zealand tax deadlines that protect your money
What to file with Inland Revenue, when penalties begin, and how long you have to challenge a decision. Every step opens the official source.
Tax year
1 April to 31 March the following year
When a due date falls on a weekend or public holiday, Inland Revenue accepts the next working day.
File and pay
7 May 路 Official deadline
Third provisional tax instalment
Final provisional instalment for the year just ended.
ird.govt.nz30 June 路 Official deadline
KiwiSaver government contribution cut-off
Contribute 1,042.86 by today to get the full government top-up for the year.
ird.govt.nz7 July 路 IR3
IR3 return due
File your individual return for the year that ended 31 March, unless a tax agent gives you an extension.
ird.govt.nz28 August 路 Official deadline
First provisional tax instalment
Instalment one of three for the current year.
ird.govt.nz15 January 路 Official deadline
Second provisional tax instalment
Instalment two of three.
ird.govt.nzPenalties, payment help and appeals
The date on your own notice wins. Appeal periods often start when Inland Revenue sends that notice, not at the tax year end.
Self-employed? Build that part of the return
Every IR3B box in plain words, with provisional tax, ACC levies and the claims sole traders miss.
Build your complete New Zealand return
Work through income, expenses and deductions, see the estimated tax, then copy the checked figures into the official filing service.
Start the step-by-step returnOfficial library connection
The library holds the official rules behind these dates. Source checks can flag a change, but a person must approve it before Taxmiser changes a calculation.