DISCLAIMER: This article is for informational purposes only and does not constitute legal, tax, financial, or investment advice. Laws and regulations vary by jurisdiction and change frequently. Always consult a qualified professional before making any decision. On 1 June 2026, India's Goods and Services Tax (GST) e-invoicing mandate expanded to include all businesses with annual turnover exceeding ₹5 crore (50 million rupees).
The Central Board of Indirect Taxes and Customs (CBIC) notified this extension in April 2026, lowering the threshold from the previously applicable ₹20 crore. For manufacturing SMEs and mid-market exporters operating in this turnover band, the practical deadline is now live. Businesses that have not yet integrated e-invoicing systems with the Invoice Registration Portal (IRP) face operational disruption and audit risk.
Market signals
The CBIC's April 2026 notification mandates e-invoicing for all GST-registered manufacturers with turnover above ₹5 crore from 1 June 2026 onwards. This captures an estimated 80,000–100,000 additional small and mid-sized manufacturers previously exempt under the ₹20 crore rule.
E-invoicing must occur through the Invoice Registration Portal (IRP) or IRP-compliant software. Manual PDF invoicing, even with QR codes, is no longer valid for these businesses. Non-compliance invites GST return rejection and penalty under section 122 of the CGST Act, 2017.
While central GST rules are uniform, some states (Maharashtra, Tamil Nadu, Karnataka) have issued additional guidance on transitional filing. Manufacturers should verify with their state GST authority whether any grace period or phased implementation applies locally.
Under Indian GST law, e-invoicing is not optional for qualifying businesses—it is a statutory requirement. The CBIC enforces compliance through ITC denial, return rejection, and penalties under section 122 of the CGST Act, 2017. Manufacturers must ensure their accounting software is IRP-linked and that invoices are generated and uploaded in real time, not batched. Vinayakam Consultants assists manufacturers in auditing current invoicing workflows, selecting or integrating IRP-compliant software, training accounts teams, and conducting mock e-invoicing cycles to avoid April–June 2026 disruption. We also help map state-specific guidance and coordinate with tax authorities on transition queries.
Your action checklist
- Verify your current GST turnover and confirm whether the ₹5 crore threshold applies to your business in FY 2025–26; if borderline, model the impact of invoicing cost on your effective tax position.
- Audit your current invoicing software and check its IRP certification status on the GSTN website; if not IRP-compliant, request an upgrade or migration plan from your vendor with a go-live date before 1 June 2026.
- Conduct a pilot e-invoicing cycle on 20–30 sample invoices (B2B, B2C, exports, credit/debit notes) to identify field mapping gaps, API errors, or QR code generation issues before full rollout.
- Train your accounts and compliance teams on e-invoice generation, IRP portal access, return reporting changes (GSTR-1 auto-population), and dispute resolution; confirm that your GST team and external CA are aligned on the new workflow.
Frequently asked questions
GST e-invoicing is mandatory from 1 June 2026 for all businesses with annual turnover exceeding ₹5 crore. The CBIC lowered the threshold from ₹20 crore in April 2026.
Non-compliance leads to GST return rejection and penalties under section 122 of the CGST Act, 2017, plus operational disruption and audit risk.
No, manual PDF invoicing is no longer valid for businesses above ₹5 crore turnover. All invoicing must go through the Invoice Registration Portal (IRP) or IRP-compliant software.