GSTNGSTN (Goods and Services Tax Network)
Regulatory Reference

What is the GSTN system in India?

Effective: 2017-07-01 · Authority: GSTN (Goods and Services Tax Network)

GSTN (Goods and Services Tax Network) is the information technology backbone of India's GST system. It processes GST registrations, returns, and e-invoice data for all businesses registered under GST. GSTN operates the Invoice Registration Portals and provides APIs for ERP integration, GSTIN validation, and invoice status tracking.

How many IRP providers operate in India?

India operates a multi-IRP model with six authorized IRPs including the government-operated NIC IRP and five private IRPs (Cygnet, Clear, E-Invoice6, Masterindia, IRIS). All six generate the same IRN for the same invoice data. Businesses can choose any IRP for e-invoice registration.

Frequently Asked Questions

How do businesses validate counterparty GSTINs?
GSTIN validation is available through the GSTN API and the GST portal. Businesses can query the GSTN API to verify that a GSTIN is active and belongs to the expected legal entity. Third-party compliance platforms provide automated GSTIN validation as part of invoice processing workflows.
What is the GSTR-1 filing and how does e-invoicing affect it?
GSTR-1 is the monthly GST outward supply return. E-invoice IRN data is automatically populated into the GSTR-1 return for registered businesses, reducing manual data entry. The GSTN matches supplier GSTR-1 data with buyer GSTR-2B data to verify input tax credit claims.

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