The Goods and Service Tax Network issued Advisory on 22.03.2023, on HSN Code reporting in e-invoice on IRPs Portal in GST. 

We would like to bring to your attention notification no. 78/2020 – Central Tax dated 15th October 2020. As per the above-said notification, it is now mandatory for taxpayers to report a minimum of six-digit valid HSN code for their outward supplies having AATO of more than 5 crores in any previous financial year.

We would like to inform you that this requirement has already been implemented in the GST system, and we are now in the process of implementing the same at IRPs portal in collaboration with our IRP partners including NIC. It is further suggested that in case wherever valid six digit HSN code is not available, a corresponding valid eight digit HSN code be reported instead of artificially creating six digit HSN code.

We understand that this requirement may require changes to your systems as well. We would like to assure you that we intend to provide sufficient time for taxpayers and IRP partners to make the necessary changes to comply with this requirement.

We will communicate the exact date of implementation to you shortly.

Source: GSTN