This guide explains the new threshold, reporting timelines, system requirements, penalties, costs, and future expectations. It helps mid-sized businesses understand how to comply smoothly and avoid GST issues.
India’s GST system is becoming more technology-driven, and e-invoicing is now a key compliance requirement. With the latest update, the government has expanded strict reporting rules to more businesses. From April 1, 2025, companies with an annual turnover of ₹10 crore or more must follow the 30-day e-invoice reporting rule.

E-invoicing in India has been introduced gradually and in a structured manner. The government lowered the turnover limit gradually so businesses could prepare their systems and teams. Today, many mid-sized businesses are subject to mandatory e-invoicing rules.
This section explains who must comply, how the rollout occurred, and the current rules.
At present, all businesses with an annual turnover above ₹5 crore must generate e-invoices for B2B transactions. This requirement was introduced in phases, starting with huge companies. Over time, the turnover limit was reduced to include smaller businesses.
The phased rollout helped businesses upgrade their ERP systems and adjust compliance processes.
Phase | Turnover Threshold | Implementation Date |
Phase I | ₹500 crore | October 1, 2020 |
Phase II | ₹100 crore | January 1, 2021 |
Phase III | ₹50 crore | April 1, 2021 |
Phase IV | ₹20 crore | April 1, 2022 |
Phase V | ₹10 crore | October 1, 2022 |
Phase VI | ₹5 crore | August 1, 2023 |
A significant compliance change starts on April 1, 2025. Businesses with Annual Aggregate Turnover (AATO) of ₹10 crore or more must report e-invoices within 30 days of invoice generation. Earlier, this rule applied only to companies with a turnover of over ₹100 crore.
Late reporting will result in invoices being rejected by the Invoice Registration Portal (IRP), creating serious GST issues.
Key points of the new rule:
E-invoicing compliance is not only about generating invoices. Businesses must prepare their internal systems, software, and security processes. Without proper system setup, invoices may fail validation.
This section explains technical and operational requirements for smooth implementation.
To implement e-invoicing successfully, businesses must upgrade or reconfigure their ERP or accounting software. The system must support government-prescribed formats and securely connect to the IRP.
Strong validation and authentication controls are also required.
Essential system requirements:
Every e-invoice must include mandatory information prescribed by GST rules. These fields ensure accurate tax reporting and smooth ITC matching between supplier and buyer.
There are 29 mandatory fields across five main sections.
Mandatory details include:
Implementing e-invoicing should be done in a planned manner. A step-by-step approach reduces errors and ensures smooth compliance. Businesses should not rush directly into live implementation.
Below are the recommended implementation phases.
The first step is to assess current business operations. Companies must review invoice volume, ERP readiness, and internal skill levels. This helps in choosing the right technology solution.
Proper planning avoids future compliance failures.
Assessment factors:
After assessment, businesses must choose the right e-invoicing solution. The software should integrate easily with existing systems and support future regulatory changes.
The solution must handle invoice volume efficiently.
Selection criteria:
Before going live, businesses must migrate data and thoroughly test systems. Testing ensures the IRP accepts invoices without errors.
Sandbox testing helps identify issues early.
Testing activities include:
Staff training is critical for successful implementation. Employees must understand both technical steps and compliance timelines. Lack of training often leads to late reporting errors.
Training should cover real-life scenarios.
Training focus areas:
Using a checklist ensures no step is missed. Businesses should regularly review compliance readiness before and after implementation.
Before starting e-invoicing, businesses must confirm eligibility and system readiness.
Checklist:
Technical setup ensures invoices are generated and reported correctly.
Checklist:
Operational controls help ensure ongoing compliance.
Checklist:
Failure to comply with e-invoicing rules can result in heavy penalties and severe business disruptions. The GST law treats e-invoicing violations strictly.
Penalties are imposed under Section 122 of the CGST Act, 2017.
Penalty structure:
Apart from penalties, non-compliance affects daily business operations.
Business impact includes:
E-invoicing requires investment, but the long-term benefits outweigh the costs. Businesses gain efficiency, accuracy, and better GST compliance.
Initial and recurring costs depend on business size and the chosen solution.
Typical costs:
Once implemented, e-invoicing improves business efficiency and cash flow.
Key benefits:
Businesses can choose different integration methods based on technical strength and invoice volume.
Direct API integration is suitable for businesses with strong IT infrastructure. It offers maximum automation and control.
Benefits:
GSP solutions are ideal for businesses with limited technical teams. They provide managed compliance services.
Advantages:
Some businesses use both direct API and GSP solutions. This provides flexibility for different transaction types.
Hybrid benefits:
The government may further reduce the e-invoicing threshold in the coming years. Businesses should stay prepared for future changes.
Industry expectations suggest that e-invoicing may extend to companies with a turnover of ₹1 crore by 2026–27.
Preparation steps:
E-invoicing technology continues to improve. Businesses should adopt future-ready solutions.
Upcoming focus areas:
The expansion of the 30-day e-invoicing rule to businesses with a turnover of ₹10 crore is a significant change in GST compliance. Companies must act early by upgrading systems, training staff, and setting precise reporting controls.
While non-compliance can lead to penalties, ITC loss, and operational disruption, proper implementation brings efficiency, transparency, and better cash flow. Businesses that treat e-invoicing as a digital improvement rather than a burden will gain long-term advantages in compliance and growth.
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