e-Invoicing in India

E-Invoicing became mandatory starting 1.10.2020 for companies operating in India

Check what will change in 2021!

The introduction of obligatory e-invoicing in India has taken place over a few stages. First, it was introduced on a voluntary basis in January 2020 for companies with annual aggregate turnover of more than INR 500 Crore. After that, starting from 1 October 2020 e-invoicing became mandatory for companies with annual aggregate turnover of more than INR 500 Crore. And from January 2021 the obligation will cover companies with turnover of INR 100.

From 1 October 2020, it became mandatory for companies with an annual turnover of INR 500 Crore. In January 2021, this obligation will cover companies with INR 100 Core turnover.


What does this mean?

All companies with headquarters or branches on Indian territory would have to create e-invoices using their own systems and send them electronically to the Indian Registration Portal in JSON format for validation. All invoices get an Invoice Reference Number (IRN) and QR code from which all invoice details can be read. If this process is successful, invoices with digital signatures are sent to the GST System. The company will then receive proof that the invoice has been registered, and the approved invoice will be available for the seller and buyer on the GST portal.


  • Invoices without an IRN are treated as invalid

  • The IRP will only take JSON-format e-invoices

Simplified process flow:



The Comarch e-Invoicing tool is fully compliant with Indian law and supports both accounts payable and accounts receivable processes

Thanks to our experience, including with companies operating in India, we can support your business in exchanging invoices easily and securely.

Comarch e-Invoicing is a powerful and comprehensive product that enables secure and highly efficient document exchange with all of your business partners and clients. Created to address the challenges of the ongoing digital transformation, it is compliant with the latest regulations and modern standards for data transfer. Our tool is ready not only for the Indian market, but also other countries. It can serve your invoice needs in many locations all around the world.

Main functionalities of Comarch e‑Invoicing:

  • VALIDATION of e-Invoices to reduce errors
  • FORMAT CONVERSION to those required/requested by your partners (to JSON format, in the case of India)
  • Integration with GST
  • Handling AP/AR
  • Secure and legally compliant cloud-based archive

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