If you're filing your GSTR-1 and encountering this error, don't worry. This guide explains why it happens and how to fix it properly.

"Error! HSN wise B2B Supplies are not reported in Table 12. Kindly provide details to proceed further."

What does this error mean?

This error is shown during GSTR-1 filing when you have B2B invoices but haven’t added the required B2B HSN summary in Table 12. This summary is mandatory for B2B sales.

✅ Reason 1: B2B sales, but HSN details are missing

If you’ve entered sales to GST-registered buyers (B2B), but haven’t filled HSN B2B wise in Table 12, the GST portal will stop you from proceeding.

✔️ Solution:

Add the relevant HSN Code, taxable value, and tax amounts (IGST, CGST, SGST) in Table 12 B2B section in summarized by HSN code.

✅ Reason 2: Nil Rated data in Table 8 interpreted as B2B

If you have reported 0% sales in Table 8 (like unregistered or exempted sales), the portal might mistakenly consider it as B2B, especially if there's no B2B data.

✔️ Solution:

Add a dummy HSN entry in Table 12 of B2B with:

• HSN Code: Any 0% GST HSN (e.g., 0101 or 30039011)
• Taxable Value: 0.00
• Tax Amounts: 0.00 for IGST, CGST, and SGST

Example Dummy HSN Entry:

HSN Code	Description	UQC	Total Quantity	Total Value	Taxable Value	IGST	CGST	SGST
0101	Dummy HSN (0% GST)	NOS	0	0.00	0.00	0.00	0.00	0.00

Final Notes

• Always include HSN details for B2B supplies in Table 12.
• If you're unsure, use a dummy 0% HSN entry with zero value.
• If you're uploading a JSON file, verify it includes Table 12 properly.

Need Help?

If you are using GST Tool to generate eCommerce data into GSTR-1 JSON, our tool automatically handles this issue. However, if you still face this error, feel free to contact our support team. We’ll help you adjust your report or upload a corrected JSON file.