Cash and Non-Cash Accounting

If you are registered for the GST, from 1 July 2000 you will remit GST to the Australian Taxation Office (ATO) and claim input tax credits for GST included in the price of goods and services you have acquired for use in your business.
You will do this on the Business Activity Statement you lodge after the end of each tax period.There are some rules about how to work out which tax period your GST amounts belong to (that is, which tax period they are attributed to). The rules for attributing GST payable and input tax credits to tax periods are different, depending on whether you account for GST on a cash or non-cash basis.