Under any tax regime, it is important to know the date when the tax liability arises. This is so because based on that time, we would be able to calculate the rate of tax, value, and due dates for payment of taxes.
Accordingly, to guide taxation under GST, certain provisions have been laid out to determine the time of supply. Section 12 of the CGST Act lays down provisions pertaining to the time of supply of goods. And Section 13 of the Act relates to the guidelines for the time of supply of services.