Tax Consultant
1662 Points
Posted on 18 July 2026
GSTR-1A is designed only for ADDITIONS , adding missed invoices or amending invoice values. It cannot delete an existing entry from GSTR-1.
Since the cancelled invoice shows NIL value in GSTR-1, it carries ZERO tax impact. Here is what to do:
1. In GSTR-3B: Do not include this cancelled transaction in Table 3.1 taxable supplies. Output tax is unaffected.
2. HSN-wise table: NIL value means reconciliation impact is zero.
3. Document Issued table: The cancelled invoice entry stays in your GSTR-1. This is acceptable , cancelled invoices should appear in the document summary with NIL or cancelled designation. No penalty for this.
Since your GSTR-3B is still pending, proceed to file GSTR-3B now. Report only actual taxable supplies. The GSTR-1 entry for the cancelled invoice causes no liability.
For the full filing sequence of GSTR-1, GSTR-1A, and GSTR-3B and how amendments work across months, see this [GST return due dates and amendment guide](https://taxgarden.in/blog/gst-return-due-dates-calendar-gstr-1-3b-9-fy-2025-26-india).