


The standard due date is: 7 July 2026
With an extension, it’s: 31 March 2027
Without extension: Most people won’t have an extension. Your due date was 7th July 2026, so if you have not filed your tax return yet, it is overdue and you need to do this now.
It’s worth knowing that 7th July 2026 was also the due date for some people even if they previously had an extension or are linked to a tax agent (aka accountant) - this will happen if your tax returns were filed late for a few consecutive years.
With an extension or linked to an accountant or tax agent: Your tax return is due by 31st March 2027.
You will need to have paid this on or before 7th April 2027.
If you’re feeling overwhelmed in filing your 2026 tax return and you own a New Zealand small business, get in touch! We can help with your tax returns and more.
