If a customer hasn't paid the IGST amount on your sales invoice, you still need to declare the full sale in your GSTR 1 filing, as GST is based on invoices, not payments received. It's advisable to discuss the non-payment with your customer, as they might be withholding the GST amount to ensure it's reflected in their GSTR 2A.
we are not able to receive our IGST amount ( which we have raised sale invoice to that party ) from our customer. Can we file GSTR 1 without showing that invoice or what is the solution in GST portal?
26 March 2020
You must show the full sales. Talk to the customer and find out reasons for non-payment. Buyers are holding GST amount to ensure that the amount of GST is paid by the suppliers and it reflects in GSTR 2A.