As per the Final Returns, in GSTR – 1, table 13 we have to show the number of documents issued for the tax period i.e beginning of the serial number and end of the serial number and then the difference between the two will give the number of document issued for tax invoice, receipt voucher, refund voucher, delivery challan issue for job work etc.
GST Tip – 160
The tax invoice numbering under GST should be alpha or numeric or alpha-numeric. It should not contain any special characters like “/” or “-” etc., and for each year the number should be a unique number and the length of the invoice number less than or equal to 50 characters.
GST Tip – 62
Under GST, input credit is available on payment and matching of the seller and buyers data in the following sequence GSTIN of the supplier, GSTIN of the recipient , Invoice/Debit Note date, Invoice/Debit Note number ,Taxable value & Tax amount.