If you pay provisional tax as well as GST, you’ll receive a GST103 form. This will be tailored to your circumstances, and you’ll only see the sections relevant to you.
Use the following worksheets to help complete the form. First, sort your information into two separate groups:
GST on sales
GST on expenses.
If at any time, you have difficulty completing your GST return, contact your tax agent/accountant or call Inland Revenue on 0800 377 776.