HSN code mandatory or Not ?

Hi, can any one tell that in GSTR-1
HSN code is mandatory to mention or not. Even my Turnover is below than 1.5 crore, in the preceding year as well as in current year.

Please refer proper notification or circular in your reply.
Replies (7)
Quick Summary
This discussion clarifies the mandatory requirement of HSN codes in GSTR-1. While generally mandatory for B2B invoices from April 1st, 2021, the digit requirement varies based on turnover. Taxpayers with turnover up to ₹5 crore need 4 digits, while those above ₹5 crore require 6 digits. An additional notification mandates 8 digits for specific chemical products.

Mandatory for all supplier from 1st April 2021
Please suggest any circular or notification in your reply
The 1st Proviso to Rule 46 of CGST Rules 2017 has been amended, vide Notification No.79/2020-CT dated 15-10-2020, for declaration of HSN code in invoice. Under this amended Proviso, Notification No. 78/2020 – Central Tax, dated 15.10.2020 has been issued to make HSN code mandatory up to 4 digits in the B2B invoices with effect from 01.04.2021 issued by taxpayers whose aggregate turnover in the preceding financial year is upto Rs. 5 crores. For the taxpayers whose turnover in the preceding financial year is more than Rs. 5 crores, HSN code is mandatory up to 6 digits in invoices with effect from 01.04.2021.
Thank you Bhaumik for a best clarification.
Welcome sir...

Dear Sir,

In addition to the above (well explained by Mr. Pandya), there is an other Notification Noti. No. 90/2020 CT - Dated 01st Dec- 2020 which mandates 8 digits HSN for 49 chemical products specified.   

Yes sir...

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