Where against an advance the invoice is issued in the same tax period, the advance need not be shown separately in Form GSTR-1 but the specified details of invoice itself can be directly uploaded on the system. Details of all advances against which the invoices have not been issued till the end of the tax period shall have to be reported on a consolidated basis in Table 11 of Form GSTR-1. As and when the invoices against these advances are issued, they have to be declared in Form GSTR-1 and the adjustment of the tax paid on advances against the tax payable on the invoices uploaded in Form GSTR-1 shall have to be done in Table 11 of Form GSTR-1.
(FAQ 18: MINING)