TaxTMI 
TaxTMI 
Duplicate invoice uploaded with different number in GSTR-6, now how to correct this error after filled GSTR-6
Correction in GSTR-6 after filled
10 Jan 2026 
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GSTR-6 corrections: duplicate invoices must be fixed in the next period's return via amendment or credit note.
Duplicate or erroneous invoices in a filed GSTR-6 must be corrected in the subsequent period's GSTR-6 because there is no separate amendment or revision form; corrections can be made by reporting an amended invoice amount (for example zero or 0.01 where zero is not permitted) or by issuing and reflecting a credit note in the next period's return. (AI Summary)
Duplicate or erroneous invoices in a filed GSTR-6 must be corrected in the subsequent period's GSTR-6 because there is no separate amendment or revision form; corrections can be made by reporting an amended invoice amount (for example zero or 0.01 where zero is not permitted) or by issuing and reflecting a credit note in the next period's return. (AI Summary)