On 23 May 2026, the Central Board of Indirect Taxes & Customs (CBIC) notified a sharp reduction in the GST e-invoice threshold. From 1 August 2026, all B2B suppliers with aggregate annual turnover exceeding ₹20 lakh (down from ₹1 crore) must issue invoices carrying an Invoice Reference Number (IRN) via the Invoice Registration Portal (IRP).
For trading and distribution businesses—particularly those in FMCG, pharmaceuticals, chemicals and electrical goods—this marks a significant shift in compliance footprint. Smaller traders must now integrate e-invoice generation into their invoicing systems within six weeks.
Market signals
CBIC notification dated 23 May 2026 lowers the e-invoice mandate. Traders with turnover between ₹20 lakh and ₹1 crore—previously exempt—now face mandatory IRN generation on all B2B invoices.
Business-to-consumer invoices and supplies to SEZs continue to fall outside the IRN mandate. Only B2B supplies attract the requirement, limiting scope for many small traders.
E-invoices generated via IRN are auto-reported to GSTR-1. Manual returns and invoice reconciliation errors are harder to hide. Real-time matching between IRN portal and GST returns increases audit risk.
Under the Goods and Services Tax Act, 2017, and CBIC circulars, failure to issue an IRN-bearing invoice for a qualifying B2B supply may be treated as non-filing of a return and attract penalties up to ₹25,000 per invoice under Section 122. Since e-invoices are auto-matched against GSTR-1 filings and cross-checked with buyer claims, discrepancies (missing or delayed IRN issuance) trigger automated demand notices. Vinayakam Consultants helps distributors and traders audit their current invoicing systems, map API integrations with accounting software (Tally, SAP, QuickBooks), and draft a phased transition plan to meet the 1 August deadline. We also advise on ITC claim risks if supplier e-invoices are delayed or malformed.
Your action checklist
- Audit your current invoicing system: identify all B2B suppliers and customers; calculate aggregate annual turnover to confirm the ₹20 lakh threshold applies to you.
- Select and integrate an e-invoice API provider (or use the IRP portal directly); ensure your accounting software supports real-time IRN generation and GSTR-1 auto-population.
- Dry-run e-invoice generation with 20–30 sample B2B invoices (across product lines, customer types and states) by 15 July 2026 to catch formatting or data errors.
- Brief your invoicing and accounts teams; set up a daily IRN status check and error log; establish a backup manual IRN request process for system outages.
Frequently asked questions
From 1 August 2026, all B2B suppliers with turnover exceeding ₹20 lakh (down from ₹1 crore) must issue e-invoices with an IRN via the Invoice Registration Portal.
Only B2B invoices above ₹20 lakh turnover require IRN. B2C invoices and exports remain exempt from the e-invoice mandate.
Failure to issue an IRN-bearing invoice for a qualifying B2B supply can attract penalties up to ₹25,000 per invoice under GST Act Section 122.