GSTN Issues Advisory On Case Sensitivity in IRN Generation

The Goods and service Tax Network has issued the  advisory on case sensitivity in Invoice Reporting Portal (IRN) generation.

The GSTN informed that, effective 1st June 2025, the IRP (Invoice Reporting Portal) would treat invoice/document numbers as case-insensitive for the purpose of IRN generation.

To ensure consistency and avoid duplication, invoice numbers reported in any format (e.g., “abc”, “ABC”, or “Abc”) would be automatically converted to uppercase before IRN generation. This change aligns with the treatment of invoice numbers in GSTR-1, which already treats them as case-insensitive.

“The same is shared for your kind information please. For any further clarification, please reach out to the GST helpdesk,” the advisory added.

Click Here To Read Advisory

Read More: Understanding Stock Transfers Under GST: A Comprehensive Guide with Examples

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Mariya Paliwala

Mariya is the Senior Editor at Juris Hour. She has 5+ years of experience on covering tax litigation stories from the Supreme Court, High Courts and various tribunals including CESTAT, ITAT, NCLAT, NCLT, etc. Mariya graduated from MLSU Law College, Udaipur (Raj.) with B.A.LL.B. and also holds an LL.M. She started as a freelance tax reporter in the leading online legal news companies like LiveLaw & Taxscan.

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