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Section 2(6) of the CGST Act, 2017 defines aggregate turnover as the aggregate value of all taxable supplies, exempt supplies, exports of goods or services or both, and inter-State supplies of persons having the same Permanent Account Number, computed on an all-India basis. Two things are taken out: the value of inward supplies on which the person pays tax under reverse charge, and the taxes themselves — central tax, State tax, Union territory tax, integrated tax and cess. The figure is therefore PAN-wide, not GSTIN-wide: a company with registrations in six States has one aggregate turnover.
The word that catches people is "exempt". Section 2(47) defines exempt supply to include nil-rated supplies, supplies exempted by notification, and non-taxable supplies — so sales of petrol, diesel or alcohol for human consumption, interest on fixed deposits and loans, and exempt rent on a residential dwelling all count. So do inter-State stock transfers to your own branches, because they are supplies between distinct persons on the same PAN. What does not count is anything that is not a supply at all: the activities in Schedule III (salary to employees, sale of land, sale of a completed building) are neither goods nor services supplied, and stay outside. For registration, Section 22 adds that the figure includes supplies made on behalf of principals, while a registered job worker leaves out the goods it returns to the principal.
The same number is then read against different limits, each with its own year. Registration under Section 22 looks at the running total of the current financial year — ₹20 lakh generally, ₹10 lakh in Manipur, Mizoram, Nagaland and Tripura, and ₹40 lakh for a person supplying only goods (Notification 10/2019-Central Tax), except in ten States and Union territories where the goods limit stays lower. Composition under Section 10 looks at the preceding financial year: ₹1.5 crore, or ₹75 lakh in eight States, and ₹50 lakh for the service-provider option in Section 10(2A) — and here alone, interest on deposits, loans and advances is left out of the count. QRMP looks at the preceding year (up to ₹5 crore). E-invoicing looks at any year since 2017-18 (above ₹5 crore). The GSTR-9 exemption (up to ₹2 crore) and the GSTR-9C requirement (above ₹5 crore) look at the year of the return itself.
These limits are stated as on 1 October 2026. The GSTR-9 exemption was made standing for FY 2024-25 onwards by Notification 15/2025-Central Tax; the 30-day limit for reporting e-invoices applies to taxpayers with aggregate turnover of ₹10 crore and above from 1 April 2025. The rate changes notified after the 56th GST Council meeting in September 2025 did not alter any turnover limit used here.
A firm registered in Maharashtra and Gujarat on one PAN has, for the year: taxable domestic sales of ₹3.20 crore (before GST), exempt sales of ₹60 lakh including ₹4 lakh of interest on fixed deposits, exports of ₹1.10 crore, and stock transfers from Maharashtra to Gujarat of ₹40 lakh. It also paid reverse-charge tax on ₹25 lakh of freight and legal fees.
