The GST deferral scheme is typically only available to businesses who lodge monthly activity statements, and it results in the GST on imported goods being deferred from one BAS reporting period to the next.
When a business purchase is made and a proportion of the purchase is for private consumption or a non-deductible business expense, the amount of GST credit claimed needs to be adjusted.
This article explains a method for handling consignment stock from the point of view of the consignee. This method helps track how much consignment stock you hold and incorporates consignment stock into your figures.