Revised GST invoice number

This discussion explores whether a GST supplier can alter an invoice number after goods and the invoice have been delivered and the original invoice filed in GSTR1. Generally, a supplier cannot change an invoice number once filed. If an e-way bill was generated, the supplier must amend the wrongly uploaded invoice number in GSTR1 rather than issuing a revised bill. Recipients can book the revised bill in their accounts, and it should match with the supplier's GSTR1 filing, allowing for input tax credit claims.