E-Invoicing Under GST: Who It Applies To

What e-invoicing actually is

E-invoicing doesn’t mean generating a PDF. It means reporting each B2B invoice to the Invoice Registration Portal (IRP), which validates it and returns a unique Invoice Reference Number (IRN) and a signed QR code. Only then is the invoice legally valid. The data also auto-populates parts of your GSTR-1 and e-way bill, reducing duplicate entry.

Who it applies to

E-invoicing applies to businesses whose aggregate turnover crosses a notified threshold, which the government has progressively lowered over time. Once you’re over the applicable limit, e-invoicing is mandatory for your B2B and export invoices. Because the threshold has kept dropping, many mid-sized Gujarat businesses that were previously outside it are now covered — so it’s worth checking your position.

What changes on your invoice

• Each B2B/export invoice must carry a valid IRN and the signed QR code
• The invoice is reported to the IRP at (or before) the time of issue
• GSTR-1 is largely auto-filled from the reported e-invoices
• E-way bill Part A can be auto-generated from the same data

If you’re liable but not compliant

If you cross the threshold and don’t e-invoice, your B2B invoices are not legally valid — which means your buyers can’t claim input tax credit on them, and you face penalty exposure. This is a common and expensive oversight when a growing business quietly crosses the limit. We check whether you’re liable and set up compliant e-invoicing before it becomes a problem.