Complete my tax code declaration

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Income tax Dates

MAY 7

AIM instalments are due if you have a March balance date.
MAY 7

Provisional tax payments are due if you have a March balance date and use the standard, estimation or ratio options.
JUL 29

AIM instalments are due if you file GST monthly and have a March balance date.

All Income tax dates

Gather your information

You will need your IRD number and your tax code.

Fill in the form

Download the Tax code declaration IR330 form.

Or you can get one from your employer or Work and Income.

If you receive NZ Super, you can update your tax code through the Ministry of Social Development's website.

Changing your tax code for NZ Super and Veteran's Pension

Tax code declaration - IR330 IR330 Oct 2023 (PDF 126KB) Download form

Hand your form in

Give the completed form to your employer if you get salary or wages.

Give the completed form to Work and Income if you get:

a Work and Income benefit
New Zealand Superannuation
Veteran’s Pension or
a student allowance.

My responsibilities

You need to tell your employer or payer if your tax code changes.

Last updated: 26 Oct 2023