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E-invoice limit in 2026: does your business need e-invoicing?
Most small businesses do not need e-invoicing, and plenty of owners worry about it anyway. The test is one number: Rs 5 crore of turnover, in any financial year since 2017-18. Here is how to check it, what changes if you cross it, and who is left out even above it.
What is the e-invoice limit in 2026?
The e-invoice limit is Rs 5 crore of aggregate annual turnover. If your business crossed Rs 5 crore in any financial year from 2017-18 onwards, you must generate e-invoices for your B2B sales. The limit has applied since 1 August 2023, under Notification 10/2023-Central Tax.
The words that trip people up are "any financial year". You do not look only at last year. If you crossed Rs 5 crore in 2021-22 and have been below it since, the rule still applies to you.
Before August 2023 the limit was Rs 10 crore. It has come down in steps since e-invoicing started for the largest businesses in 2020, so it is worth checking again each April rather than assuming last year's answer still holds.
How do I work out my aggregate turnover?
Aggregate turnover is counted per PAN, across all India. Add up the taxable sales, exempt sales, exports and inter-state sales of every GSTIN registered under the same PAN. Leave out the GST itself, and leave out purchases on which you pay tax under reverse charge.
The PAN part matters for anyone with more than one registration. A business with Rs 3 crore of sales in Maharashtra and Rs 2.5 crore in Karnataka under the same PAN has Rs 5.5 crore of aggregate turnover, and both registrations fall in scope.
Your GSTR-1 and GSTR-3B filings already hold these figures, so your CA can confirm the number in a few minutes.
Who is exempt from e-invoicing even above Rs 5 crore?
Some businesses are left out whatever their turnover: units in special economic zones, insurers, banks and other financial institutions including NBFCs, goods transport agencies, passenger transport services, multiplex cinemas for their admission tickets, and government departments. If you are one of these, the limit does not apply.
Some documents are outside it too. A bill of supply for exempt goods, an import, a job work challan or a delivery challan does not need an e-invoice, even for a business that is in scope.
Which bills need an e-invoice?
Once you are in scope, every tax invoice, credit note and debit note you issue to another GST-registered business needs an IRN from the government invoice registration portal, and so do exports. Bills to ordinary customers without a GSTIN do not need one.
The IRN is a reference number the portal returns after it checks your invoice, along with a signed QR code that has to be printed on the bill. You raise the invoice as usual, report it to the portal, and print the IRN and QR code on the copy you hand over.
So a shop above the limit that sells mostly over the counter to walk-in customers keeps billing those customers exactly as before. Only the bills to registered business buyers change.
What is the 30-day rule for e-invoices?
From 1 April 2025, a business with aggregate turnover of Rs 10 crore or more cannot report an invoice, credit note or debit note to the portal more than 30 days after its date. The portal blocks it. Below Rs 10 crore there is no such time limit for now.
An invoice dated 1 April cannot be reported after 30 April. For a business in that band, the safe habit is to report each bill when it is raised rather than in a batch at month end.
What happens if I am in scope and do not e-invoice?
An invoice that should have an IRN but does not is not treated as a valid tax invoice under Rule 48(5) of the CGST Rules. Your buyer cannot claim input tax credit on it, which is usually the first you hear of the problem, and it can also attract a penalty under Section 122.
The buyer's accountant is the one most likely to notice, because the credit they are counting on does not match. That makes a missing IRN a customer problem as well as a tax one.
Does Invoice Saathi generate e-invoices?
Not yet. Invoice Saathi is built for businesses below the Rs 5 crore limit, which is most small shops, cafes and service businesses. If your turnover has crossed Rs 5 crore, use the government e-invoice portal or accounting software that connects to it, and ask your CA to confirm your setup.
Below the limit, a normal GST tax invoice with the right fields on it is all the law asks for, and that is what the app produces.
Sources
Checked on 25 September 2026. Rules change, so confirm anything that affects your filing with your CA.
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