E-invoicing is not a new invoice format. It is a requirement that your invoice be registered with a government portal before you issue it, and that it carry the IRN and QR code that come back. An invoice that needed an IRN and does not have one is not a valid tax invoice — and your customer usually finds that before you do.
Pick the speed and depth that matches your need. Same quality, same CA team — only the timeline changes.
Timeline: 3–5 working days
Timeline: 5–10 working days
Timeline: Monthly, ongoing
Government fee — paid by you at actuals
Nil. Registration on the Invoice Registration Portal carries no government charge, and IRN generation is free. The entire cost is our professional fee above. Where you are on a custom ERP and need a GSP for API integration, the GSP's own subscription is billed by them directly and quoted separately.
Every price above is a professional fee, excluding GST and government charges. 50% on delivery.
All fees and charges listed are indicative only and do not constitute a binding offer. Final amounts may vary depending on the volume of work and the complexity involved.
We aggregate turnover across every GSTIN under your PAN and across every financial year from 2017-18 onwards, and tell you whether you are in and from when.
Registration and enablement on the Invoice Registration Portal, with MFA configured. There is no government fee at this step.
Zoho Books, Tally Prime, Tally ERP 9 or QuickBooks Online configured with your IRP credentials and the correct schema mapping — including the Ship-to GSTIN field that became mandatory on 1 August 2026.
IRN generation tested against real invoices in sandbox, so failures surface before your customers see them.
Live IRN generation, GSTR-1 auto-population checked against your books, and e-way bill Part A auto-generation wired up from the same document.
Tell us your requirement, a CA will call you in 30 minutes.
E-invoicing applies where aggregate annual turnover exceeds ₹5 crore in any financial year from 2017-18 onwards, a threshold in place since 1 August 2023. Registrations in Maharashtra, Karnataka and West Bengal are aggregated. Cross ₹5 crore on the combined number and every registration under that PAN is covered, including the small ones.
Cross the threshold in any year from 2017-18 onwards and you stay covered. Turnover dropping back below ₹5 crore later does not take you out.
Several sites say the threshold dropped to ₹2 crore from October 2025 with a three-day reporting window. There is no notification supporting that. The threshold is ₹5 crore. Do not rebuild your billing on an uncited blog post.
Under a GSTN advisory dated 17 June 2026, Ship-to GSTIN is now mandatory in the IRN and e-way bill APIs wherever Ship-to information is present — use "URP" where the consignee is unregistered. For B2B and SEZ transactions, Ship-to details entered at the IRN stage are no longer overridden during e-way bill creation. A voluntary e-way bill closure facility has also been introduced, letting the supplier, recipient or transporter declare delivery complete. If your ERP has not been updated for the Ship-to GSTIN field, IRN generation is failing right now.
From 1 April 2025, a taxpayer with aggregate turnover of ₹10 crore or more cannot report a document to the Invoice Registration Portal more than 30 days after the document date. The IRP rejects it — no IRN, no valid invoice, no fix. That threshold used to be ₹100 crore. Between ₹5 crore and ₹10 crore, e-invoicing is mandatory but the 30-day restriction does not currently apply. The practical effect above ₹10 crore is that IRN generation cannot sit in a monthly back-office batch any more.
Covered: tax invoices, credit notes and debit notes for B2B supplies, SEZ supplies, deemed exports and exports. Not covered: B2C invoices remain outside the framework, along with certain notified suppliers including SEZ units, banking and insurance companies, goods transport agencies, passenger transport, and multiplex cinema operators.
Most providers will tell you what e-invoicing is. We run Zoho Books, Tally Prime, Tally ERP 9 and QuickBooks Online as live services, not as a page on a website. The configuration is done by the same team that runs your books, in the same system, and IRN generation is tested against real invoices before you go live. If you are not on any of those yet, we will set one up. If you are on a custom ERP, we integrate through a GSP.
Rule 48(5) is blunt: an invoice that required an IRN and does not have one is not an invoice. Your buyer cannot claim input tax credit on it. In a B2B relationship that surfaces fast, usually through their GSTR-2B reconciliation, and it becomes a commercial argument before it becomes a departmental one. Penalties under Section 122 for issuing an incorrect invoice apply separately.
