Your Complete Guide to NZ Income Tax Deadlines - File on Time or Get an Extension.

For individuals and companies once the income tax year has closed (or balance date is reached e.g. 31 March) the income tax return becomes due for filing with Inland Revenue in the same year on the 7th of July.

If you have registered with a tax agent like Tax Matterz, Inland Revenue provides you with what is called an EOT (extension of time). The tax agent and you can work together to finalise the income tax return and have it filed before the 31st of March of the following tax year. For example the 31 March 2023 income tax return will be due by 31 March 2024. The extension of a year is a privilege only extended to those who are registered with a body like us.