Am I In Scope for GST E-Invoicing? The Turnover Test Is a Ratchet

E-invoicing is one of the few GST obligations where the question "does this apply to me?" is harder than the question "how do I comply?". The compliance is a technical integration. The scope test is a piece of statutory drafting that behaves in a way most businesses do not expect.

Specifically: it is a ratchet. You can cross into e-invoicing. You cannot cross back out.

Quick answer

E-invoicing applies to registered persons whose aggregate turnover in _any_ preceding financial year from 2017-18 onwards exceeds ₹5 crore, for supplies to a registered person or for exports. The ₹5 crore figure took effect on 1 August 2023. Excluded: government departments, local authorities, SEZ units, and the Rule 54(2)/(3)/(4)/(4A) classes. Rule 48(5) provides that a non-compliant invoice from someone in scope is not an invoice.

Who this is for

Any business that has ever crossed ₹5 crore of aggregate turnover in a year since 2017-18. Businesses that have shrunk since. Finance teams inheriting a setup and unsure whether it is still required. And anyone buying from a supplier around that size, because the sanction lands on the buyer's credit.

Where the obligation actually comes from

Two layers, and it helps to keep them separate.

Rule 48(4) creates the mechanism but names nobody:

"The invoice shall be prepared by such class of registered persons as may be notified by the Government, on the recommendations of the Council, by including such particulars contained in FORM GST INV-01 after obtaining an Invoice Reference Number by uploading information contained therein on the Common Goods and Services Tax Electronic Portal in such manner and subject to such conditions and restrictions as may be specified in the notification."

A proviso allows the Commissioner, on the Council's recommendations, to exempt a person or a class of registered persons from issuing an invoice under that sub-rule for a specified period.

Notification 13/2020-Central Tax supplies the class. It has been amended repeatedly, and the current wording is what matters — not any single one of those notifications read alone.

Assembling the current text

Because the operative sentence exists only as a base notification plus four amendments, here is how it was built:

Assembled, the operative class is:

Registered persons — other than a government department, a local authority, a Special Economic Zone unit, and those referred to in sub-rules (2), (3), (4) and (4A) of Rule 54 — whose aggregate turnover in any preceding financial year from 2017-18 onwards exceeds five crore rupees, who shall prepare invoices in the Rule 48(4) manner in respect of supply of goods or services or both to a registered person or for exports.

The ratchet, and why it is deliberate

The words inserted by Notification 70/2020-Central Tax are the ones to sit with:

"for the words 'a financial year', the words and figures 'any preceding financial year from 2017-18 onwards' shall be substituted"

Before that amendment, a natural reading was that you tested the current or immediately preceding year, and a business whose turnover fell could reasonably think it had fallen out. After it, the test is whether the threshold has been exceeded in any year going back to 2017-18.

So scope is acquired, not maintained. A business that turned over ₹7 crore in FY 2019-20 and has run at ₹3 crore ever since is, on the face of the notification, still in scope today. There is no exit provision. The only route out is the proviso to Rule 48(4) — an exemption notified by the Commissioner — which is a positive act by the Government rather than something that happens because your numbers moved.

This is the single most consequential misreading we see. Businesses that contracted after a good year quietly stop generating IRNs, on the reasonable-sounding basis that they are now below the limit, and every B2B invoice they issue afterwards runs into Rule 48(5).

Note also that the measurement is PAN-level. Section 2(6) defines aggregate turnover as the aggregate value of all taxable supplies, exempt supplies, exports and inter-State supplies of persons having the same Permanent Account Number, computed on an all-India basis. Four State registrations under one PAN are added together, and if the combined figure has ever exceeded the threshold, all four are in scope.

Who is out, precisely

The exclusions are by class, not by size, and being in one of them means turnover is irrelevant to you:

• a government department
• a local authority
• a Special Economic Zone unit
• Rule 54(2) — an insurer, a banking company, or a financial institution including a non-banking

financial company

• Rule 54(3) — a goods transport agency supplying services in relation to transportation of goods by

road in a goods carriage

• Rule 54(4) — a supplier of passenger transportation service
• Rule 54(4A) — a supplier of services by way of admission to exhibition of cinematograph films in

multiplex screens

Note the SEZ asymmetry that catches people: an SEZ unit is excluded, but an SEZ developer is not named in the exclusion, and a domestic supplier to an SEZ is certainly not excluded — its supply is an export-type zero-rated supply and sits squarely inside "or for exports". If you deal with SEZs, establish which side of that line each entity is on rather than assuming the whole zone is outside.

Rule 48(5): the sanction lands on your customer

This is the sentence that makes e-invoicing a commercial issue rather than a filing one:

"Every invoice issued by a person to whom sub-rule (4) applies in any manner other than the manner specified in the said sub-rule shall not be treated as an invoice."

Not irregular. Not defective. Not an invoice.

Now read it against section 16(2)(a), which bars a registered person from taking input tax credit unless "he is in possession of a tax invoice or debit note issued by a supplier registered under this Act, or such other tax paying documents as may be prescribed".

If you are in scope and you issue a B2B invoice without an IRN, your customer is not holding a tax invoice. They have no valid document on which to claim credit, and no amount of goodwill on your part fixes it retrospectively for them.

A worked example. Assume a components manufacturer crossed ₹5 crore of aggregate turnover in FY 2022-23, has run at about ₹4 crore since, and stopped generating IRNs at the start of FY 2025-26 on the understanding that it had fallen below the limit. Assume it invoices a single B2B customer ₹40 lakh over six months at 18%, so ₹7.2 lakh of GST.

On the face of the instruments: the manufacturer never left the notified class, because the test is any preceding year from 2017-18 onwards and FY 2022-23 qualifies. Every one of those invoices is therefore caught by Rule 48(5) and is not an invoice. The customer's ₹7.2 lakh of credit has no supporting tax invoice under section 16(2)(a). And because section 16(4) closes credit for a financial year on 30 November following it, or the annual return if earlier, the window to regularise is finite even if both parties agree to fix it.

Figures are illustrative; the rate and amounts are assumptions stated so you can substitute your own. The provisions are as cited.

The practical lesson is that the party with the strongest incentive to check your e-invoicing status is your customer, and increasingly they do.

What e-invoicing does not do

It does not replace your returns. Rule 48(4) governs how a particular class prepares an invoice; it does not touch sections 37 and 39. You still furnish GSTR-1 and GSTR-3B for every tax period, nil periods included.

What it does do is remove re-keying. E-invoice data assists the population of GSTR-1 and of e-way bills, which eliminates a whole family of mismatch between the invoice, the return and the e-way bill — and mismatch between those three is one of the most common triggers for a scrutiny notice under section 61.

A checklist for working out your own position

1. Compute aggregate turnover under section 2(6) for every financial year from 2017-18 onwards, at

PAN level, all-India — including exempt supplies and exports, excluding the taxes themselves and inward supplies on which you pay under reverse charge.

1. Ask whether it exceeded the threshold in force at the time in any of those years. If yes, you are

in scope now, whatever the current year looks like.

1. Check the class exclusions — government department, local authority, SEZ unit, or a Rule

54(2)/(3)/(4)/(4A) supplier. These override turnover.

1. Identify your document set: supplies to registered persons, and exports. B2C is outside this rule,

though separate dynamic QR requirements may apply to large B2C suppliers and are worth checking independently.

1. Confirm the current document coverage and schema on the Invoice Registration Portal before

configuring your billing system.

Common mistakes

• Testing the immediately preceding year. The notification says any preceding financial year from

2017-18 onwards.

• Assuming you fall out when turnover drops. There is no exit provision; only a Commissioner's

exemption under the proviso to Rule 48(4).

• Measuring per GSTIN. Aggregate turnover is a PAN-level, all-India figure under section 2(6).
• Treating a missing IRN as a paperwork slip. Rule 48(5) says the document is not an invoice, and

section 16(2)(a) then denies your customer their credit.

• Assuming everything SEZ-related is excluded. The exclusion names an SEZ unit; supplies to an SEZ

are zero-rated and inside "or for exports".

• Generating IRNs for B2C. The notified scope is supplies to a registered person or for exports.
• Thinking e-invoicing replaces GSTR-1. It assists the population of it. The return obligation is

untouched.

What to do next

If you have ever crossed ₹5 crore, work out the year you first did — not the year you are in. That single figure determines your position, and it is the one most businesses have never actually looked up.

We check that year, confirm whether an exclusion applies, and set up IRN and QR generation to fit how you already bill, under GST e-invoicing setup and support. Everything runs through the official Invoice Registration Portal; there is no private route and we do not claim one.

Sources and currency

Applies to: India, CGST Rules 2017 and Notification 13/2020-Central Tax as amended, in force on 20 August 2026

Rule 48 was read in full on CBIC's live rules repository on 20 August 2026. Notification 13/2020-Central Tax and each of its amending notifications relied on here — 61/2020, 70/2020, 23/2021 and 10/2023 — were read as PDF text from official hosts on the same day, and the current wording of the first paragraph below is assembled from those instruments rather than from a secondary consolidation. Two limits. The intermediate threshold steps between ₹500 crore and ₹5 crore were not individually captured, because Notification 10/2023-Central Tax fixes the current figure and a complete enumeration of Central Tax notifications to approximately 30 June 2026 found nothing later amending it. And what the Invoice Registration Portal presents to a given taxpayer could not be verified, because the portal is not machine-readable from here.

• CGST Rules 2017, Rule 48 — sub-rule (4) prescribes the IRN process and sub-rule (5) voids a non-compliant invoice
• CGST Rules 2017, Rule 54 — the classes of supplier excluded by reference in the notification
• Notification 13/2020-Central Tax, 21 March 2020 — the base notification naming the class of registered persons
• Notification 61/2020-Central Tax, 30 July 2020 — inserts the Special Economic Zone unit exclusion
• Notification 70/2020-Central Tax, 30 September 2020 — substitutes 'any preceding financial year from 2017-18 onwards' and adds exports
• Notification 23/2021-Central Tax, 1 June 2021 — inserts the government department and local authority exclusions
• Notification 10/2023-Central Tax, 10 May 2023 — substitutes ₹5 crore for ₹10 crore with effect from 1 August 2023
• CGST Act 2017, section 16 — including section 16(2)(a), which requires possession of a tax invoice
• CGST Rules 2017, Rule 59 — GSTR-1, which the e-invoice data feeds