Missed mentioning HSN and Invoice details in GSTR-1

If you've missed including HSN and invoice details in your GSTR-1 return, don't panic. While a general penalty of ₹25,000 is possible, it's often unlikely for minor oversights. For missed invoices, you can typically include them in the next month's GSTR-1, declaring the liability along with applicable interest. However, if only the HSN code was omitted, there isn't a direct way to amend this specific detail retrospectively.