E-invoicing has become an important GST compliance requirement for businesses across India. It enables businesses to electronically authenticate specified invoices through the Invoice Registration Portal (IRP), helping create a more standardised and transparent invoicing process. Understanding the applicable turnover threshold and compliance requirements is essential for businesses to avoid errors, delays, and potential penalties.
What is E-Invoicing Under GST?
E-invoicing is the process of reporting specified GST invoices to an authorised Invoice Registration Portal and obtaining an Invoice Reference Number (IRN). The invoice is generated through the taxpayer’s existing accounting or billing system and then registered on the IRP.
Once successfully registered, the invoice receives a unique IRN along with a digitally signed QR code. This information can then be used as part of the GST invoicing process.
Who is Required to Generate E-Invoices?
As per the current GST e-invoicing framework, e-invoicing applies to businesses whose Annual Aggregate Turnover (AATO) is ₹5 crore or more, subject to the prescribed conditions and exemptions.
The threshold was progressively reduced over several phases:
- ₹500 crore and above – from October 2020
- ₹100 crore and above – from January 2021
- ₹50 crore and above – from April 2021
- ₹20 crore and above – from April 2022
- ₹10 crore and above – from October 2022
- ₹5 crore and above – from August 2023
The ₹5 crore threshold represents the current broad turnover threshold for e-invoicing applicability.
How is Turnover Calculated?
The applicability of e-invoicing is based on Annual Aggregate Turnover (AATO) rather than the turnover of a single GST registration alone.
Aggregate turnover is considered on an all-India basis under the same PAN and generally includes taxable supplies, exempt supplies, exports, and inter-State supplies, while excluding GST taxes and certain specified items.
Businesses should therefore review their consolidated turnover across GST registrations before determining whether the e-invoicing requirement applies.
Which Transactions Generally Require E-Invoicing?
For taxpayers covered by the mandate, e-invoicing primarily applies to specified transactions such as:
- B2B supplies
- Exports
- Supplies to specified registered entities
- Credit notes and debit notes related to applicable transactions
The exact applicability can depend on the nature of the transaction and the taxpayer. Certain categories of taxpayers and transactions are specifically exempt under GST provisions.
What is the E-Invoicing Process?
The general e-invoicing process involves the following steps:
1. Generate the invoice
Create the invoice through your accounting, ERP, or billing software with the required GST details.
2. Report invoice details to the IRP
The relevant invoice information is submitted electronically to an authorised Invoice Registration Portal.
3. Receive the IRN
The IRP validates the invoice and generates a unique Invoice Reference Number.
4. Generate the QR Code
The registered invoice is digitally signed and the required QR code is generated.
5. Share the compliant invoice
The IRN and QR code are incorporated into the invoice issued to the customer.
Important 30-Day Reporting Requirement
From 1 April 2025, taxpayers having an Annual Aggregate Turnover of ₹10 crore or more are required to report e-invoices to the IRP within 30 days from the invoice date. Businesses covered by this requirement should ensure their accounting and invoicing systems are configured to meet the prescribed reporting timeline.
Benefits of E-Invoicing
E-invoicing can help businesses improve their invoicing and compliance processes by:
- Reducing manual data entry and duplication
- Improving invoice accuracy
- Supporting faster reconciliation
- Reducing the possibility of invoice manipulation
- Integrating invoice data with GST compliance processes
- Improving transparency in business transactions
What Happens if E-Invoicing Requirements Are Not Followed?
Businesses covered under the e-invoicing mandate need to ensure that applicable invoices are properly registered and contain the required details. Non-compliance can result in tax and compliance implications, including restrictions on treating an invoice as a valid tax invoice in applicable circumstances and potential penalties.
Businesses should therefore review their applicability, maintain accurate turnover records, and ensure that their billing or ERP systems are properly integrated with the e-invoicing process.
Conclusion
E-invoicing is an important part of India’s GST compliance framework, particularly for growing businesses and MSMEs. With the applicability threshold currently set at ₹5 crore AATO, businesses should regularly monitor their aggregate turnover and assess whether they fall within the mandate.
Keeping your accounting systems updated and following the prescribed IRP reporting requirements can help maintain smoother GST compliance and minimise avoidable business disruptions.
