Streamlined Accounting (GST/HST) Regulations — 21.1
21.1 (1) For the purposes of this Part, the threshold amount for a fiscal year of a registrant is equal to the total of (a) the amount determined by the formula A × 365/B where A is the total of all consideration (other than consideration referred to in section 167.1 of the Act that is attributable to goodwill of a business) for taxable supplies (other than supplies of financial services and supplies by way of sale of real property that is capital property of the registrant) made by the registrant that became due, or was paid without having become due, to the registrant in the immediately preceding fiscal year (in this subsection referred to as the “base year”) of the registrant, and B is the number of days in the base year, and (b) the total of all amounts each of which is an amount, in respect of a person (in this paragraph referred to as the “associate”) who was associated with the registrant at the end of the particular fiscal year of the associate that is the last fiscal year of the associate ending in the base year, determined by the formula C × 365/D where C is the total of all consideration (other than consideration referred to in section 167.1 of the Act that is attributable to goodwill of a business) for taxable supplies (other than supplies of financial services and supplies by way of sale of real property that is capital property of the associate) made by the associate that became due, or was paid without having become due, to the associate in the particular fiscal year, and D is the number of days in the particular fiscal year. (2) For the purposes of this Part, the threshold amount for a particular fiscal quarter in a particular fiscal year of a registrant is equal to the total of (a) the total of all consideration (other than consideration referred to in section 167.1 of the Act that is attributable to goodwill of a business) for taxable supplies (other than supplies of financial services and supplies by way of sale of real property that is capital property of the registrant) made by the registrant that became due, or was paid without having become due, to the registrant in the preceding fiscal quarters in the particular fiscal year, and (b) the total of all amounts each of which is an amount in respect of a person (in this paragraph referred to as the “associate”) who was associated with the registrant at the beginning of the particular fiscal quarter equal to the total of all consideration (other than consideration referred to in section 167.1 of the Act that is attributable to goodwill of a business) for taxable supplies (other than supplies of financial services and supplies by way of sale of real property that is capital property of the associate) made by the associate that became due, or was paid without having become due, to the associate in the fiscal quarters of the associate that end in the particular fiscal year of the registrant before the beginning of the particular fiscal quarter of the registrant. (3) For the purposes of this Part, the purchase threshold for a fiscal year of a registrant is equal to the total of all amounts each of which (a) is an amount that became due, or was paid without having become due, by the registrant in the immediately preceding fiscal year for a taxable supply, other than a zero-rated supply, of property or a service that was acquired in Canada by the registrant or was acquired outside Canada by the registrant and imported by the registrant; and (b) is either (i) included in determining the cost to the registrant of the property or service for the purposes of the Income Tax Act , or (ii) tax payable by the registrant in respect of the acquisition or importation of the property or service. (4) For the purposes of this Part, the purchase threshold of a registrant for a particular day is equal to the total of all amounts each of which (a) is an amount that, on or before the particular day and in the fiscal year of the registrant that includes the particular day, became due