To find out your tax code in New Zealand, you need to use the online tool on the Inland Revenue website. Tax codes are lettered codes that help your employer or payer work out how much tax to deduct from your pay, benefit, or pension. You need to work out your tax code for each source of income you receive, and your tax code might be different for different types of income.

To determine your personal tax code, you can use the flowchart provided with the Tax Code Declaration form (IR 330) from the Inland Revenue Department (IRD) . If your annual income from all sources is between NZ$14,001 and NZ$48,000, your tax code is S. If your annual income from all sources is between NZ$48,001 and NZ$70,000, your tax code is ST.

There are also other tax code options for specific occupations in New Zealand, such as the EDW tax code for Recognised Seasonal Workers employed under the Recognised Seasonal Employers Scheme in the horticulture or viticulture industries.

Its important to fill out the Tax Code Declaration form with the correct IRD number and tax code, otherwise, you could end up being taxed significantly more than you need to.