Te tātai i tō tāke hokohoko Calculating your GST

You'll need to make sure you've correctly calculated your GST before filing your return. Most people file their GST return in myIR which does the calculations for you. If you file a paper return the form tells you what calculations to make.

Regardless of how you file you need to work out your total:

sales and income

zero-rated supplies

debit adjustments

purchases and expenses

credit adjustments