IRN

Invoice Reference Number

Unique reference issued by IRP for every B2B invoice (e-invoicing).

What is IRN?

IRN is generated by the Invoice Registration Portal (IRP) for every B2B invoice + credit/debit note. Returns a QR code that must be printed on the invoice. Mandatory for businesses with turnover > ₹5 cr.

Who needs IRN?

B2B businesses above ₹5 cr turnover.