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GST

E-invoicing: who needs it and how to get set up

HK
By CA Honey Kalra
·Nov 2025·4 min read
GST e-invoicing setup with invoice registration portal and IRN generation illustration

E-invoicing sounds daunting but it's mostly a one-time setup. The key is knowing whether it applies to you and getting the plumbing right before your next billing cycle.

Who needs it

E-invoicing applies once your aggregate turnover crosses the notified threshold. The threshold has come down in stages, so check it against your current turnover rather than assuming you're exempt.

Getting set up

  • Register on the IRPthe invoice registration portal that issues your IRN and QR code.
  • Connect your billingeither through your accounting software's GSP integration or the offline tool.
  • Test before you go liverun a few sample invoices so the format and IRN flow are working.

Once it's set up, e-invoicing actually reduces work — your GSTR-1 and e-way bills pull straight from the IRN. The pain is all in the first week.

In short

Check the turnover threshold, register on the IRP, wire it into your billing, and test. After that it largely runs itself.

HK
CA Honey Kalra

Independent Chartered Accountant. I write short, practical notes on tax, GST and compliance — and I'm always happy to answer a real question.

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