GST e-invoicing applies where aggregate annual turnover under the PAN exceeded ₹5 crore in any financial year from 2017-18 onward, subject to notified exclusions.
GST e-invoicing applies where aggregate annual turnover under the PAN exceeded ₹5 crore in any financial year from 2017-18 onward, subject to notified exclusions. Covered B2B, export and specified credit or debit-note documents must obtain an IRN and signed QR code.
Legal or Computational Framework
Governing rule
The threshold is PAN-based across GSTINs and is tested against any relevant preceding financial year. E-invoice is not a separate invoice: invoice data is reported to the IRP, which returns the IRN and QR code.
Correct workflow
Calculate PAN AATO history; identify covered GSTINs and documents; configure HSN, recipient and place-of-supply data; report within the applicable IRP window; verify IRN and QR; reconcile IRP, GSTR-1 and books.
Step-by-step method
- Calculate PAN AATO history.
- identify covered GSTINs and documents.
- configure HSN, recipient and place-of-supply data.
- report within the applicable IRP window.
- verify IRN and QR.
- reconcile IRP, GSTR-1 and books.
Worked example
A group has GSTIN turnover of ₹3 crore in Maharashtra and ₹2.5 crore in Karnataka in one prior year. PAN AATO exceeds ₹5 crore, so covered invoices of both GSTINs enter the mandate unless an exclusion applies.
The example is an audit trail, not a substitute for the user's facts. Change one input—residence, payment date, tax year, asset, return form, GST status, employer category or supporting document—and the result can change.
Edge cases
- B2C invoices are generally outside the current B2B mandate: record the factual and legal conclusion in the working paper.
- Exports are covered documents: record the factual and legal conclusion in the working paper.
- Portal enablement is not the legal test: record the factual and legal conclusion in the working paper.
- IRN cancellation has a restricted window: record the factual and legal conclusion in the working paper.
- Reporting time limits can change through official advisories: record the factual and legal conclusion in the working paper.
What Generic Pages Miss
- Testing each GSTIN separately.
- Printing a QR without an IRN.
- Excluding exports.
- Treating e-invoice as optional because GSTR-1 accepts data.
- Ignoring credit or debit notes.
Generic pages often confuse gross income with net receipt, TDS with final tax, GST turnover with income-tax turnover or a portal value with legal eligibility. Finin2min should show why an amount is accepted, deferred, reversed, rejected or carried forward.
Practical Documentation Checklist
- PAN-wise turnover history
- GSTIN master
- IRP JSON and acknowledgement
- QR verification
- Invoice/note register
- GSTR-1 reconciliation
See the broader GST & Indirect Tax knowledge hub for related rules and calculators on this topic.
Finin2min Summary
GST e-invoicing applies where aggregate annual turnover under the PAN exceeded ₹5 crore in any financial year from 2017-18 onward, subject to notified exclusions. Covered B2B, export and specified credit or debit-note documents must obtain an IRN and signed QR code.
Finin2min rule: classify the legal event, calculate from source records and show every adjustment.
Frequently Asked Questions
What is the direct answer for GST e-invoicing threshold ₹5 crore? ▼
GST e-invoicing applies where aggregate annual turnover under the PAN exceeded ₹5 crore in any financial year from 2017-18 onward, subject to notified exclusions. Covered B2B, export and specified credit or debit-note documents must obtain an IRN and signed QR code.
Which law or period applies? ▼
The threshold is PAN-based across GSTINs and is tested against any relevant preceding financial year. E-invoice is not a separate invoice: invoice data is reported to the IRP, which returns the IRN and QR code. AY 2026–27 remains under the Income-tax Act, 1961; income from 1 April 2026 is governed by the Income-tax Act, 2025 where relevant.
What calculation or workflow should be followed? ▼
Calculate PAN AATO history; identify covered GSTINs and documents; configure HSN, recipient and place-of-supply data; report within the applicable IRP window; verify IRN and QR; reconcile IRP, GSTR-1 and books.
What does the example demonstrate? ▼
A group has GSTIN turnover of ₹3 crore in Maharashtra and ₹2.5 crore in Karnataka in one prior year. PAN AATO exceeds ₹5 crore, so covered invoices of both GSTINs enter the mandate unless an exclusion applies.
Which records should be retained? ▼
Keep PAN-wise turnover history, GSTIN master, IRP JSON and acknowledgement, QR verification, invoice/note register so the result can be reproduced and defended.
What is the most common error? ▼
The most frequent errors are testing each GSTIN separately and printing a QR without an IRN.