News

New HSN validation rules roll out for e-invoicing

E-invoice portal now cross-checks HSN codes against the master list in real time, flagging mismatches before submission.

26 Jun 2026

What changed

The e-invoice portal now validates every HSN code entered against the official master list at the point of submission, rather than after the fact.

Why it matters

Previously, invoices with incorrect or outdated HSN codes could be submitted and only get flagged during return filing or audit. Real-time validation catches these errors immediately, before the invoice is even generated.

What businesses should do

Make sure your billing software's HSN master list is kept current, since codes are occasionally revised or reclassified following rate notifications.