by Ajay Shah and Atibhi Sharma.
The introduction of the Goods and Services Tax (GST) in 2017, was an important milestone in the evolution of Indian tax policy. By consolidating a fragmented web of central excise, state value added taxes (VATs), and local entry taxes, the reform promised a unified, destination-based consumption tax. This concept is generally termed VAT worldwide. The original document (Kelkar et. al. 2003) used the term GST in order to avoid confusion with the then-prevalent Central Value Added Tax (CENVAT).
At its core, the value proposition of a modern VAT is neutrality: it taxes only final consumption. This is achieved through the Input Tax Credit (ITC) mechanism, which allows businesses to offset taxes paid on inputs against their output tax liability. Taxes should flow seamlessly through the production chain without cascading or sticking to intermediate producers. In recent years, there has been considerable concept drift, and a loss of coherence in the GST as it is practiced today. Input tax credit - the beating heart of the GST - is blocked in many situations (Modi & Shah, 2026).
A key element of building knowledge in India about tax policy as it affects firms would be to study the firm data on the subject of the GST. To do this, we turn to the CMIE Prowess database and ask questions about what is going on. A remarkable fact about the CMIE firm data, however, is that almost nothing about the GST is observed. By its very design, the GST is invisible to firm accounting. Under Indian Accounting Standards (Ind AS) and Schedule III (which sets out the mandatory presentation format and notes for financial statements) rules under the Companies Act (2013), gross GST transaction flows are completely netted out of corporate Profit and Loss statements. Consequently, firm-level GST in India is functionally unobserved.
Foundations
GST is a tax upon value added where firms are not levied indirect taxes like earlier; final consumers are taxed. Rather than taxing gross turnover at each stage of production (which creates a cascading tax-on-tax), GST allows a registered business to deduct the tax paid on its inputs from the tax it collects on its outputs. In this system, the firm effectively acts as a pass-through tax collector, holding collected output tax as a statutory liability to be remitted to the government. The accounting identity governing a firm's net GST liability is:
Net GST Incidence = Output GST Payable - Input Tax Credit (ITC)
Here, `Output GST Payable' is the statutory tax collected by the firm on behalf of the government, `Input Tax Credit' (ITC) is the tax paid on inputs and capital goods, and `Net GST' is the cash deposited into the government treasury via the electronic cash ledger.
Consider three realistic scenarios:
- Scenario 1: Clean manufacturing flow.
- An FMCG manufacturer purchases raw agricultural products, packaging materials, and energy for Rs.1,00,000 plus 18% GST (ITC of Rs.18,000). The firm processes these inputs and sells packaged goods to distributors for Rs.1,50,000 plus 18% GST (Output GST of Rs.27,000). Net GST paid in cash equals Rs.27,000 - Rs.18,000 = Rs.9,000. The economic value added is Rs.50,000, and 18% of Rs.50,000 is exactly Rs.9,000. The tax system functions neutrally as a pure value-added tax.
- Scenario 2: One ITC blockage example.
- A textile or fertiliser firm purchases raw materials and logistics services for Rs.1,00,000 at 18% GST (ITC of Rs.18,000, split between Rs.10,000 on input goods and Rs.8,000 on input services). Statutory caps limit the output tax rate on finished fabric to 5%, yielding Output GST of Rs.10,000 on Rs.2,00,000 of sales. The firm accumulates unutilised ITC of Rs.8,000. Under Rule 89(5) of the CGST Rules (2017), cash refunds under S.54(3) of the CGST Act (2017) are restricted strictly to input goods, while refunds for ITC accumulated on services are legally barred. Now the effective GST paid by the firm is 10,000 - 10,000 + 8,000. This excess Rs.8,000 is not visible in the financial statements.
- Scenario 3: Another ITC blockage example.
- A steel firm spends Rs.50,00,000 on constructing a factory building, paying 18% GST (Rs.9,00,000). Separately, the firm spends Rs.10,00,000 on mandatory Corporate Social Responsibility (CSR) activities, paying Rs.1,80,000 in GST. Under S.17(5)(d) and S.17(5)(fa) of the CGST Act (2017), ITC is explicitly blocked for immovable property construction and CSR. Therefore there is an excess GST payment of Rs.10,80,000. Under Ind AS 16, the Rs.9,00,000 blocked GST is capitalized into Property, Plant and Equipment (PPE), while the CSR GST is absorbed into operating expenses. The blocked GST loses its tax identity entirely, cascading into product costs and depreciation schedules without appearing as tax.
What accounting standards say
Why do these substantial GST cash flows disappear from corporate financial reports? The answer lies in Indian Accounting Standards (Ind AS 115 and Ind AS 16) working in tandem with Schedule III of the Companies Act (2013).
Under Ind AS 115 (Revenue from Contracts with Customers), revenue is recognized only to the extent of economic benefits flowing to the enterprise. Because GST is an agency transaction, indirect tax flows are presented strictly as balance sheet items rather than Profit & Loss (P&L) line items:
- Sales revenue is reported net of Output GST.
- Operating expenses are reported net of Input GST, as input tax is treated as an asset (receivable).
Furthermore, because the balance sheet captures only a point-in-time snapshot of residual unadjusted receivables or payables at fiscal year-end (March 31), the reported amounts may not be large. A large enterprise may handle thousands of crores in gross GST transactions during the year, but because monthly output liabilities are continuously set off against input credits, for a typical non-financial firm, the year-end balance sheet item appears modest or negligible. This creates a misleading impression of a minor indirect tax incidence while concealing the true volume of tax transactions and unrecovered credits.
To see how these disclosure rules function in practice, we inspect audited financial statements across three representative major Indian enterprises:
1. Tata Steel
Prior to GST, excise duty was reported as a gross revenue component with a transparent deduction line on the face of the Profit and Loss statement.
Following GST adoption, this disclosure vanished completely as excise duty was no longer applicable. Revenue from operations is reported net of GST, with zero line items for indirect taxes on the face of the P&L.
2. Britannia Industries
In Britannia's post-GST annual report, we are able to observe the outstanding GST liabilities as of the end of the year combined with employee payroll taxes and TDS under Note 24 ("Other current liabilities").
Similarly, unutilized input tax credits at the end of the year is bundled under Note 17 ("Other current assets") under the generic heading "Balance with government authorities".
3. Shriram Finance
For financial firms, the accumulation of ITC is explained by Rule 38 of the CGST Rules, which lets NBFCs choose between a detailed calculation or simply keep 50% of eligible ITC each month, letting the rest lapse. Once a firm opts for either method in a year, it cannot switch back until the next year. Shriram Finance's separate disclosure of "GST credit receivable" follows the ICAI guidance note on Division III of Schedule III to the Companies Act, 2013 for NBFC that is required to comply with Ind AS, which provides for such credit to be shown under "other non-financial assets." Notably, this figure is cumulative since GST's introduction in 2017, not a single year's number. However, since this detailed disclosure is not mandatory, practice varies across NBFCs - some report it as a separate line item, while others club it under "Balances with government authorities".
Simultaneously, statutory tax liabilities are aggregated under "Statutory dues payable" in Note 29. This is a mix of TDS payable, GST payables, and other statutory dues.
What's observed in the CMIE database
Because corporate databases like CMIE Prowess compile financial data directly from audited annual reports, the database inherits the structural netting mandated by Ind AS.
When an empirical researcher queries CMIE Prowess for firm-level GST data, the active flow of GST is missing. Instead, Prowess only captures a set of residual variables:
sa_sales: Captures sales revenue net of output GST.exp_gst(GST Expenses): This variable remains completely empty or missing for virtually all non-financial and manufacturing firms because GST is a balance-sheet pass-through.sa_indirect_taxes: Pre-2017, this field captured excise duty and sales tax. Post-2017, Prowess maps this field to "rates and taxes, net" in Other Expenses, capturing only non-creditable local taxes, municipal rates, or tax dispute write-offs.
To help fix intuition, here are numerical values seen in CMIE Prowess fields for the three firms in FY 2024-25:
| CMIE Prowess Variable | Tata Steel | Britannia Industries | Shriram Finance |
|---|---|---|---|
| sa_sales (Sales Revenue) | Rs.1,32,516.66 Cr (Net of GST) | Rs.16,859.22 Cr (Net of GST) | Not applicable for a financial firm |
| exp_gst (GST Expenses) | Missing / Empty | Missing / Empty | Missing / Empty |
| sa_indirect_taxes (Indirect Taxes in P&L) | Very Low (Local rates & cesses) | Very Low (Excludes creditable tax) | Negligible |
A Policy Proposal
Measuring GST at the firm level is essential for understanding the operational efficiency, tax incidence, and financial health of Indian firms. Without visibility into gross GST collections, input tax credits, and blocked credits, researchers, investors, and policymakers remain unable to evaluate how indirect taxes affect corporate behavior, capital allocation, and productivity in India. Therefore, achieving transparency requires an explicit and separate regulatory strategy focused directly on mandatory disclosures.
The ideal list of information required in a standardized P&L addendum disclosure (or mandatory Note to Accounts) includes:
- Gross Output GST collected on sales and turnover.
- Gross Input Tax Credit (ITC) claimed on procurements (distinguishing input goods, input services, and capital goods).
- Net GST deposited in cash via the electronic cash ledger (GSTR-3B).
- Total blocked ITC under Section 17(5) of the CGST Act (disaggregating amounts capitalized into Property, Plant and Equipment vs expensed into P&L).
- Pending GST refund claims under Section 54 of CGST Act along with a standardized ageing schedule.
To implement this, the requirement must be inserted into Schedule III to the Companies Act, 2013 overseen by the Ministry of Corporate Affairs (MCA).
This regulatory amendment carries three major benefits with minimal friction:
- Market transparency: Enables equity analysts, credit rating agencies, and lenders to assess working-capital drag from trapped ITC and true cost distortions from blocked credits under Section 17(5).
- Public economics research: Unlocks systematic firm-level empirical research on indirect taxation without relying on restricted tax return data.
- Near-zero compliance cost: Firms already compute and audit these exact figures monthly for their GST filings. Publishing a summary reconciliation note in annual reports imposes virtually zero incremental reporting cost.
Conclusion
At present, firm-level GST in India remains unobserved in public corporate databases. When researchers analyze fields in CMIE Prowess, they are not observing the true magnitude or incidence of GST, because P&L sales and expenditure fields exclude these indirect taxes by design. Attempting to estimate corporate tax elasticity, compliance, or indirect tax incidence from these database fields is fundamentally flawed. The complete, itemized record of GST payables and receivables - reported across monthly returns for outward sales (GSTR-1), auto-drafted input credits (GSTR-2B), and summary tax settlements (GSTR-3B) - remains locked inside the administrative database of the GSTN. Mandating addendum disclosures under Schedule III offers a simple, low-cost path to restoring financial transparency.
Bibliography
Kelkar, Vijay L., D. C. Gupta, Vineeta Rai, N. S. Sisodia, D. Swarup, and Ashok K. Lahiri. 2004. Report of the Task Force on Implementation of the Fiscal Responsibility and Budget Management Act, 2003. New Delhi: Ministry of Finance, Government of India. http://www.dea.gov.in/files/other_reports_documents/1.pdf.
Modi, Arbind, and Ajay Shah. 2025. "Input Tax Credit and refunds under GST in India: Conceptual and legal framework." Working Paper 44. XKDR Forum. December 2025. https://www.xkdr.org/paper/input-tax-credit-and-refunds-under-gst-in-india-conceptual-and-legal-framework.
The authors are researchers at XKDR Forum. We thank Mahesh Vyas, Arbind Modi, Megha Patnaik, Sanhita Sapatnekar and Susan Thomas for their comments and suggestions.







