E-Invoicing & E-Way Bill Software India 2026: Thresholds

If your aggregate turnover is above ₹5 crore, you must issue e-invoices for B2B supplies. Your software's first job is to push every invoice, credit note and debit note to the Invoice Registration Portal (IRP) and receive the IRN and QR code without manual uploads. If your AATO is ₹10 crore or more, that has to happen within 30 days of the invoice date, because the IRP rejects anything later. For most SMEs, the cheapest dependable route is e-invoicing built into the accounting software you already use, such as TallyPrime or Zoho Books. High-volume businesses with ERPs, multiple GSTINs or heavy e-way bill traffic should evaluate a specialist compliance layer, such as ClearTax e-Invoicing or ClearOne, alongside their ERP. Below ₹5 crore, e-invoicing is optional, but e-way bills still apply whenever you move goods worth more than ₹50,000.

Executive summary

• The e-invoicing threshold is ₹5 crore. Notification 10/2023–Central Tax, dated 10 May 2023, implemented e-invoicing for taxpayers with aggregate turnover exceeding ₹5 crore from 1 August 2023 (GST Council).
• There is a hard 30-day reporting window at ₹10 crore. From 1 April 2025, taxpayers with AATO of ₹10 crore and above must report e-invoices within 30 days of the invoice date. The IRP rejects late reports (GSTN).
• E-way bills start at ₹50,000. The CGST Rules require an e-way bill for movement of goods with consignment value exceeding fifty thousand rupees (E-way bill rules).
• Accounting suites now include e-invoicing. Zoho says e-invoicing is available in all paid Zoho Books plans from Standard (Zoho). Tally describes IRP connection and IRN/QR printing in TallyPrime (Tally).
• Specialist tools rarely publish prices. ClearOne offers a 30-day free trial but did not publish paid plan prices on the page we accessed (ClearOne). Budget time for quotes.

Market context

E-invoicing in India is not a PDF emailed to a customer. It is a process in which a supplier's system reports invoice data to a government-notified Invoice Registration Portal, which validates it and returns an Invoice Reference Number (IRN) and a signed QR code. The invoice is valid only with that IRN. The data then flows to the GST system, which reduces re-keying in returns.

Who must comply. CBIC's Notification 10/2023–Central Tax, dated 10 May 2023, "seeks to implement e-invoicing for the taxpayers having aggregate turnover exceeding Rs. 5 Cr from 01st August 2023" (GST Council). The threshold has fallen in stages since e-invoicing began with large taxpayers. Each reduction brings in thousands of smaller businesses that previously invoiced from spreadsheets or basic billing apps.

When invoices must be reported. GSTN's advisory, published on the e-invoice portal, says: "Taxpayers with an Aggregate Annual Turnover (AATO) of ₹10 Cr and above must report e-Invoices within 30 days from the invoice date." The rule took effect on 1 April 2025, applies to invoices, credit notes and debit notes, and the system "will reject any e-invoice reported beyond the 30-day window". Previously the limit applied only to AATO of ₹100 crore and above (GSTN).

The practical consequence is significant. A credit note raised against an old invoice, a backdated invoice fixed after a dispute, or a batch that failed silently in an integration can each become impossible to register once 30 days pass.

E-way bills. Rule 138 of the CGST Rules requires every registered person who causes movement of goods of consignment value exceeding fifty thousand rupees to furnish details in Part A of FORM GST EWB-01 before movement begins (E-way bill rules). The rules also state that validity is counted from the time the e-way bill is generated, with each day counted as twenty-four hours, and that a recipient who does not accept or reject within seventy-two hours is deemed to have accepted. Because e-invoice data can pre-fill e-way bill details, most businesses above the e-invoice threshold manage both from one tool.

We did not find an official count of e-invoice-generating taxpayers that we could verify, so we do not quote one. For a comparison of invoicing apps aimed at smaller businesses, see our GST invoicing software comparison.

Evaluation framework

The weights below are App Advisor's methodology for a business that is, or will soon be, above the ₹5 crore e-invoicing threshold. They reflect our editorial view.

Vendor comparison

Prices are from official vendor pages accessed in September 2026, excluding GST unless stated. "Not published on the page we could access" means no price was visible on the official page when we checked.

When built-in is enough and when it is not

• Built-in (Zoho Books, TallyPrime) is enough when invoices originate in that software, volumes are modest, and there are only a few GSTINs. You avoid integration work and a second subscription.
• A specialist layer (ClearTax, Masters India and similar) makes sense when invoices originate in an ERP such as SAP or Oracle, in several systems, or in custom billing platforms. It also helps when you need bulk e-way bill operations, API-level throughput, or central dashboards across many GSTINs.
• A billing app with e-invoicing (ClearOne) suits smaller businesses above the threshold that do not want a full accounting suite, provided your accountant can work with its exports.

Browse GST software and invoicing software for more options.

Total cost of ownership

Illustrative model — assumptions stated. Hypothetical figures based on published list prices only. Not a customer quote.

Assumptions

• A distributor with aggregate turnover of ₹8 crore: above the ₹5 crore e-invoice threshold, below the ₹10 crore 30-day rule
• About 400 B2B invoices and 250 e-way bills a month (4,800 invoices a year)
• 4 finance and dispatch users
• Three-year horizon; GST excluded
• Hardware, internet and staff costs excluded

Cost of getting it wrong. If this business grows past ₹10 crore AATO, the 30-day rule applies. A single missed batch of 100 invoices that cannot be registered would need re-issuing and could delay customers' input tax credit, which is a commercial cost that does not appear in any licence fee. Put a monitoring process in place before you cross ₹10 crore, not after.

Headroom check. Zoho Books Standard's 5,000-invoice annual limit fits this business today. At 10% annual growth, invoices would reach about 5,280 in year 2 and exceed the limit. Choose the plan for year 2 volumes, not year 1.

Built-in versus specialist: a closer look

The choice between e-invoicing inside your accounting software and a separate compliance layer is really a choice about where invoice data is created and how many exceptions you handle.

Signals that built-in e-invoicing is enough

• Every B2B invoice is raised in one accounting system.
• You have one GSTIN or a few, managed by the same team.
• Monthly invoice counts are in the hundreds, not tens of thousands.
• E-way bills are generated by the same people who raise invoices.
• Your IRP error rate is low because customer masters are maintained carefully.

Signals that a specialist layer is worth evaluating

• Invoices come from an ERP, a custom billing system, marketplaces and a separate service billing tool, all feeding one set of GSTINs.
• Dispatch teams in warehouses generate e-way bills independently of the finance team.
• You need API-level integration, bulk generation, or a single dashboard across many registrations.
• You frequently update Part B for vehicle changes, extend validity, or handle rejections by recipients.
• Your auditors want a central log of every IRN and e-way bill action.

Hybrid set-ups are common. Many mid-sized businesses keep e-invoicing inside Zoho Books or TallyPrime for routine sales while using a specialist tool for high-volume dispatch locations. If you choose this route, make sure the same invoice cannot be sent to the IRP from both systems, and define which system is the record of truth for cancellations.

Questions to ask every vendor

1. What happens to an invoice when the IRP is slow or unavailable? Is it queued and retried automatically, and are you alerted?
2. How does the product warn you about documents approaching the 30-day limit?
3. Can a credit note be registered against an invoice created in another system?
4. How are e-way bill extensions and Part B updates handled for vehicles in transit?
5. What reports reconcile IRNs with GSTR-1?

Implementation roadmap

Week 1: Scope

• Confirm aggregate turnover for the preceding financial years and whether you exceed ₹5 crore or ₹10 crore.
• List every system that creates invoices, credit notes, debit notes and delivery challans.
• List GSTINs and dispatch locations.

Weeks 2–3: Portal and GSP set-up

• Register on the e-invoice portal and create API credentials, or authorise your software's GSP as instructed by the vendor.
• Map invoice fields: HSN codes, unit codes, place of supply, buyer GSTIN validation.

Weeks 3–5: Test

• Generate test IRNs for invoices, credit notes and debit notes, including edge cases: SEZ supplies, exports, reverse charge, discounts.
• Generate e-way bills from e-invoices, update Part B, and test cancellation.

Weeks 5–6: Go-live controls

• Build a daily report of documents without an IRN.
• If AATO is ₹10 crore or more, add an alert for any document approaching 30 days without registration.

Weeks 6–8: Reconcile

• Reconcile IRNs against GSTR-1 each month.
• Review cancelled IRNs and e-way bills for patterns such as wrong buyer GSTINs or wrong HSN codes.

Risks and compliance checklist

• Threshold check each year. Aggregate turnover above ₹5 crore brings e-invoicing into scope (GST Council).
• 30-day window monitored if AATO is ₹10 crore or more, including credit and debit notes (GSTN).
• E-way bill before movement for consignments above ₹50,000 (E-way bill rules).
• Validity tracking. E-way bill validity runs from generation, counted in 24-hour days. Extend before expiry when transit is delayed.
• Recipient response window. Recipients have seventy-two hours to accept or reject before deemed acceptance. Watch for rejections.
• Master data hygiene. Buyer GSTINs, HSN codes and state codes are the most common causes of IRP errors.
• Cancellation discipline. Cancel within the portal's permitted window rather than issuing a duplicate invoice.
• Credentials security. Restrict API and portal credentials. Rotate them when staff leave.
• Plan limits. Confirm annual invoice limits in subscription plans match your growth.

KPIs to track

How to choose

• Turnover below ₹5 crore? E-invoicing is not mandatory. Pick billing or accounting software that supports it for when you grow, and make sure e-way bills are covered.
• ₹5–10 crore, invoices created in Zoho Books or Tally? Use the built-in e-invoicing and set up a weekly check of documents without an IRN.
• Above ₹10 crore? Built-in is still fine if invoices originate there, but add daily monitoring and alerts for the 30-day window.
• Invoices originate in an ERP or several systems? Evaluate a specialist layer such as ClearTax e-Invoicing or Masters India autoTax and ask for API throughput and multi-GSTIN dashboards.
• Small team, no full accounting suite, above threshold? Consider ClearOne and confirm its exports suit your CA.

FAQs

Sources

• GST Council — Notification 10/2023–Central Tax
• GSTN e-invoice portal — revised time limit for AATO ₹10 crore and above
• E-way bill rules (CGST Rules, Chapter XVI)
• Zoho Books e-invoicing
• Zoho Books India pricing
• Tally — e-invoice applicability guide
• Tally — Buy TallyPrime
• ClearOne by Clear
• Clear e-invoicing software