Purchases and expenses

The way you work out your total purchases and expenses depends on the accounting basis you use.

You use the invoice basis You use the payments or hybrid basis In your GST return for the period include: amounts you’ve paid to or been invoiced by suppliers if you hold taxable supply information, even if you have not paid the full amount yet. In your GST return for the period include: amounts you've paid to suppliers if you hold taxable supply information.

Find out more about taxable supply information.

How taxable supply information for GST works

You can only claim part of the GST charged on a purchase that will only partly be used in your business.

GST adjustments for business, private and exempt use