When you need to change your tax code

You might need to adjust your tax code on all your sources of income so that you pay the right amount of tax if you:

• stop working
• change jobs
• start a new job, or
• start getting money from another source, such as NZ Superannuation.

You may also need to adjust the amount of tax that is taken from any income you earn from investments or interest on your savings.

Income you pay tax on

Tax on investments and savings 

How to change your tax code

To change your tax code you need to complete a Tax Code Declaration form IR330.

Tax code declaration IR330 

The form provides information to help you work out the right tax code for your situation. If you're having trouble working it out you can call IRD. Have your IRD number ready.

Freephone: 0800 227 774 from an NZ landline

Phone: +64 4 978 0738 from a cellphone

Once you have completed the IR330, you must print it out and give it to your employer. If the change applies to NZ Super or a Veteran's Pension, give the form to Work & Income. They'll adjust the amount of tax taken from your wages, salary or pension payments.