Aggregate Turnover: The Five Things It Includes, PAN-Wide

Aggregate Turnover explained: this guide covers what it means, who it applies to, the step-by-step process, documents required, fees, due dates and penalties in India — so you can stay compliant with confidence and avoid costly mistakes.

Almost every threshold in GST runs off this one definition — registration, composition, QRMP, e-invoicing, HSN reporting digits, GSTR-9C applicability. Get it wrong and several unrelated obligations move at once.

Section 2(6): aggregate turnover means the aggregate value of all taxable supplies (excluding inward supplies on which tax is payable on reverse charge), exempt supplies, exports of goods or services or both and inter-State supplies of persons having the same Permanent Account Number, to be computed on all-India basis, but excluding central tax, State tax, Union territory tax, integrated tax and cess.

The five inclusions

1. Taxable supplies. All outward supplies on which GST is chargeable.

2. Exempt supplies. This is the one most often missed. Section 2(47) defines exempt supply to include nil-rated, wholly exempt, and non-taxable supply — so alcohol, petroleum products and electricity turnover count towards the threshold even though no GST is payable on them.

A petrol pump with ₹8 crore of fuel sales and ₹5 lakh of lubricant sales has aggregate turnover of ₹8.05 crore, not ₹5 lakh.

3. Exports of goods or services. Zero-rated, and included.

4. Inter-State supplies of persons having the same PAN. Stock transfers and cross-charges between distinct persons are supplies and enter the aggregate.

5. All of the above, on an all-India basis, across the PAN. Not per registration, not per State.

The exclusions

Central tax, State tax, Union territory tax, integrated tax and cess. The turnover is exclusive of GST.

Inward supplies on which tax is payable on reverse charge. Purchases on which the person pays RCM are not its turnover. This exclusion is written into the "taxable supplies" limb.

Note what is not excluded: outward supplies on which the recipient pays under reverse charge. A goods transport agency's freight income, or an advocate's fee, is the supplier's turnover even though the recipient pays the tax. Section 17(3): what counts as exempt supply →

Why the PAN-wide, all-India basis matters

A business with:

• ₹12 lakh turnover in Maharashtra;
• ₹9 lakh in Gujarat;
• ₹6 lakh in Karnataka

has aggregate turnover of ₹27 lakh, not three separate figures. Where the threshold is ₹20 lakh, it is liable to register in all three States — because s.22(1) makes a supplier liable to register in the State from which he makes a taxable supply once his aggregate turnover exceeds the threshold.

The turnover is aggregated nationally; the liability to register is State-wise.

The same applies to multiple business lines under one PAN, and to a proprietor's several businesses — the individual is one person with one PAN.

Where each threshold uses it

Two different reference years appear here. Registration is current-year, running; composition and most reporting thresholds are preceding-year. E-invoicing looks at any year since 2017-18, so once crossed, the obligation does not fall away when turnover drops.

Common computation errors

Excluding exempt turnover. The largest single error, and it usually understates the figure materially.

Excluding non-taxable supplies. Alcohol and fuel turnover count.

Computing per registration. The definition says all-India, same PAN.

Excluding stock transfers. Inter-State supplies between distinct persons with the same PAN are expressly included.

Including inward RCM. Purchases on which you pay RCM are not your turnover.

Including the tax. The figure is exclusive of GST.

Netting credit notes incorrectly. Turnover is the value of supplies; a credit note reducing the value of a supply under s.15(3) reduces it, but a financial credit note does not.

Practical notes

• Build the computation from the books, not from GSTR-3B. The return does not capture non-taxable supplies in a way that feeds this definition cleanly.
• Consolidate across all GSTINs on the PAN, monthly, not at year end. Registration liability arises when the threshold is crossed, and s.25(1) gives thirty days from that date to apply.
• Watch the mid-year crossing. A business at ₹18 lakh in December that reaches ₹21 lakh in February became liable in February, not on 1 April.
• Reconcile to GSTR-9C, where the turnover reconciliation makes the composition of turnover visible.
• Document the exempt and non-taxable components — they are the ones an officer will question in either direction.

Key takeaways

• s.2(6): taxable + exempt + exports + inter-State same-PAN supplies, all-India, exclusive of GST.
• Exempt and non-taxable supplies count — including alcohol, fuel and electricity turnover.
• Inward reverse charge supplies are excluded; outward supplies under RCM are included.
• Turnover is aggregated PAN-wide; the registration liability is State-wise.
• Different thresholds use current-year or preceding-year turnover — check which.
• E-invoicing applicability, once triggered, does not lapse if turnover falls.

Read next

• Aggregate Turnover: How to Calculate for Registration
• Who Must Register: Threshold Limits and Exemptions
• Section 22-30 CGST: Registration
• Threshold Limits by State and Category

Disclaimer: Positions stated as on 5 September 2026, based on the CGST Act as amended to 31 March 2026 (ICAI Bare Law, 12th edition) and the ICAI Handbook on Registration under GST (November 2025).