Published on: 6th October 2026
Authored by: Eshita Nishad
ITM University, Raipur
Abstract
The introduction of the Goods and Services Tax (GST) on July 1, 2017, marked one of the most transformative fiscal and constitutional experiments in post-independence India. Designed to dismantle a fragmented indirect tax architecture characterized by cascading duties, double taxation, and inter-state barriers, GST established a unified national market governed by the principle of “One Nation, One Tax.” As the GST regime completes eight years of operation, the focus of Indian fiscal policy has shifted from basic structural integration to administrative efficiency, digital innovation, rate rationalization, and long-term fiscal sustainability. Contemporary developments—including automated e-invoicing systems, real-time e-way bill generation, artificial intelligence-driven risk auditing, aggressive anti-evasion measures, and proposed tax slab consolidations—reflect the emergence of a new phase of tax governance (“GST 2.0”). This article examines the evolution of India’s GST framework from a legislative reform to a complex system of digital fiscal administration. It evaluates the legal and constitutional challenges surrounding compliance burdens, input tax credit claims, revenue-sharing arrangements, and the dynamics of cooperative federalism following landmark judicial rulings. Drawing upon constitutional provisions, statutory schemes, administrative directives, and Supreme Court jurisprudence, the study argues that the enduring success of GST depends on balancing state tax autonomy and taxpayer rights with administrative efficiency and revenue generation.
I. Introduction
On July 1, 2017, India enacted the Constitution (One Hundred and First Amendment) Act, 2016, ushering in the Goods and Services Tax (GST) regime. This legislative reform replaced a patchwork of central and state indirect taxes—including Central Excise Duty, Service Tax, State Value Added Tax (VAT), Central Sales Tax (CST), Entry Tax, Octroi, and Luxury Tax—with a unified, destination-based tax system. Prior to 2017, businesses operated under distinct state tax regimes, facing severe tax-on-tax cascading effects, high compliance costs, and significant delays at inter-state border checkpoints. The core objective of GST was to streamline indirect taxation, establish a seamless national market, enhance compliance through digital infrastructure, and boost revenue collection[cite: 4].
Over the past eight years, GST has reshaped India’s economic and legal landscape[cite: 4]. Beyond consolidating indirect tax laws, it created a unique institutional framework for inter-governmental negotiation through the GST Council[cite: 4]. However, eight years into implementation, the legal and economic dialogue surrounding GST has matured[cite: 4]. The primary policy challenge is no longer merely preserving the structural existence of GST, but refining its operational and administrative execution[cite: 4]. Policymakers and tax administrators now focus on technological integration, predictive risk modeling, rate slab simplification, and resolving constitutional frictions between the Union and the States[cite: 4]. This article provides a comprehensive legal analysis of contemporary GST developments, examining how digital tools, judicial decisions, and federal tensions shape the future of indirect taxation in India[cite: 4].
II. GST as a Continuing Reform Process: From Legislation to Digital Governance
The Evolution of a Dynamic Regulatory Framework
The introduction of GST was never envisioned as a static statutory event, but as an evolving regulatory process capable of adapting to economic shifts[cite: 4]. Since 2017, the GST Council has issued hundreds of notifications, circulars, and statutory amendments to rectify operational bottlenecks, streamline procedural compliance, and address tax evasion[cite: 4]. In recent years, the emphasis has shifted from structural legislation to administrative refinement[cite: 4]. Rather than introducing fundamental legislative overhauls, the state has focused on strengthening procedural mechanisms, expanding data analytics, and automating tax administration through the Goods and Services Tax Network (GSTN)[cite: 4].
Expansion of E-Invoicing and Real-Time Transaction Tracking
A key element of this administrative phase is the phased implementation of e-invoicing under Rule 48(4) of the Central Goods and Services Tax (CGST) Rules, 2017[cite: 4]. Initially required only for large enterprise taxpayers, e-invoicing mandatory thresholds have been systematically lowered to cover small and medium-sized enterprises (SMEs)[cite: 4]. E-invoicing requires businesses to upload transaction details directly to the Invoice Registration Portal (IRP), generating a unique Invoice Reference Number (IRN) and QR code for each B2B transaction[cite: 4].
This automated pipeline integrates transaction data directly into the GSTN, auto-populating outward supply returns (GSTR-1) and inward supply statements (GSTR-2B)[cite: 4]. By standardizing invoice data in real time, e-invoicing curtails the issuance of fictitious invoices, eliminates manual reporting errors, and limits fraudulent input tax credit (ITC) claims[cite: 4]. When integrated with the electronic way bill (E-Way Bill) system for goods transportation, tax authorities gain visibility over physical goods movement and financial accounting across state lines[cite: 4].
Predictive Tax Administration through Artificial Intelligence and Data Analytics
Indian tax administration has increasingly transitioned from post-audit investigations to real-time, predictive risk management[cite: 4]. Through automated data analysis systems such as the Advanced Analytics in GST (BIFA) platform and deep learning algorithms, tax authorities cross-examine GST returns with Income Tax filings, customs data (ICEGATE), and banking transactions[cite: 4]. These AI systems calculate risk scores, flag mismatches between GSTR-1 and GSTR-3B filings, identify suspicious networks of shell entities, and alert field officers to potential tax evasion before refunds or credits are processed[cite: 4]. While predictive auditing improves revenue efficiency, it also introduces procedural challenges, as automated red flags can lead to provisional suspension of GST registrations or blocking of ITC without prior manual review[cite: 4].
III. Digitalisation and Taxpayer Rights: Balancing Efficiency with Due Process
The Advantages of a Tech-Driven Tax System
Digitalizing tax administration through the GSTN portal has introduced notable efficiencies into India’s fiscal governance[cite: 4]. First, replacing face-to-face administrative encounters with faceless automated returns, online registration, and digital refund processing reduces administrative discretion and mitigates opportunities for petty corruption[cite: 4]. Second, centralized digital record-keeping improves transparency, enabling taxpayers to trace matched credits and verify supplier compliance online[cite: 4]. Third, automated cross-verification lowers long-term audit and verification costs for compliant businesses[cite: 4].
Compliance Burdens and Digital Hurdles for Small Enterprises
Despite these systemic benefits, rapid digitalization has introduced practical challenges for small, micro, and informal enterprises[cite: 4]. The GST regime requires continuous compliance—including monthly return filings, invoice matching, e-way bill generation, and mandatory portal reconciliations[cite: 4]. For small businesses lacking dedicated accounting teams or reliable digital infrastructure, keeping pace with frequent portal updates, technical glitches, and changing procedural rules creates disproportionate administrative costs[cite: 4].
Furthermore, technical errors on the portal—such as server overloads during peak filing dates or mismatched portal data—have frequently led to statutory late fees, interest penalties, and blocked input credits for compliant buyers whose suppliers failed to upload invoices on time[cite: 4]. Courts have increasingly stepped in under Article 226 writ jurisdictions to direct tax authorities to allow manual return rectifications or extend deadlines where portal failures prevented timely statutory compliance[cite: 4]. As tax administration becomes more automated, administrative procedure must maintain basic due process guarantees, including reasonable notice, opportunity to be heard, and protection against automated account suspensions[cite: 4].
IV. Constitutional Federalism and the GST Council
The Constitutional Mechanics of Joint Fiscal Sovereignty
The enactment of GST altered the constitutional division of fiscal powers between the Union and the States under the Constitution of India[cite: 4]. Article 246A granted concurrent powers to Parliament and State Legislatures to enact laws levying tax on goods and services, breaking away from the traditional separation of tax heads under Schedule VII[cite: 4]. Article 269A assigned exclusive authority to the Central Government to levy and collect Integrated GST (IGST) on inter-state trade, with proceeds apportioned between the Union and States based on GST Council recommendations[cite: 4].
To oversee this concurrent jurisdiction, Article 279A established the GST Council, a joint constitutional forum chaired by the Union Finance Minister and comprising State Finance Ministers[cite: 4]. Article 279A(9) mandates that decisions be taken by a three-fourths weighted majority, giving the Central Government one-third of the voting weight and all State Governments combined two-thirds[cite: 4]. This structure requires consensus between the Union and a broad coalition of States to pass binding decisions[cite: 4].
Judicial Interpretation of Federal Power: The Mohit Minerals Principle
The constitutional nature of GST Council recommendations was clarified by the Supreme Court of India in the landmark case of Union of India v. Mohit Minerals Pvt. Ltd. (2022)[cite: 4]. The Union Government argued that recommendations of the GST Council were binding on state legislatures, creating a unified statutory command[cite: 4]. Justice D.Y. Chandrachud, writing for the Bench, rejected this view, holding that recommendations of the GST Council possess persuasive value and are not mandatory binding directions upon Parliament or State Legislatures[cite: 4].
The Court emphasized that Article 246A grants simultaneous legislative power to both Parliament and State Legislatures, and neither body is subordinate to the other[cite: 4]. The judgment introduced the concept of “uncooperative federalism,” affirming that states retain the constitutional right to contest, modify, or reject council recommendations through legislative acts[cite: 4]. While Mohit Minerals reaffirmed state legislative sovereignty, it also underscored the importance of political consensus-building within the GST Council to prevent state-level legislative fragmentation that could undermine the common national market[cite: 4].
Fiscal Autonomy and the Post-Compensation Era
Federal relations have faced continued strain following the expiration of the statutory five-year GST compensation period in June 2022[cite: 4]. Under the Goods and Services Tax (Compensation to States) Act, 2017, the Union Government guaranteed states a 14% compound annual revenue growth rate, compensating shortfalls through a dedicated Compensation Cess[cite: 4]. With the termination of these compensation payments, several manufacturing states have expressed concerns regarding revenue shortfalls and limited independent taxation powers[cite: 4]. Rebalancing central revenue allocation mechanisms while maintaining national tax rate uniformity remains a key federal test for the GST Council[cite: 4].
V. Structural Rationalisation of GST Rates
Navigating the Multi-Slab Tax Architecture
Unlike countries that maintain a single or dual-rate GST structure, India adopted a multi-tiered rate structure (0%, 5%, 12%, 18%, and 28%, alongside special rates for precious metals)[cite: 4]. This multi-slab model was intentionally designed to protect lower-income consumers by exempting or minimally taxing essential goods (such as unprocessed food grains) while imposing higher levies on luxury and sin goods[cite: 4].
However, managing multiple tax slabs introduces administrative complexity, classification disputes, and inverted duty structures[cite: 4]. Classification disputes frequently arise when closely related products fall under different tax brackets, leading to prolonged litigation regarding product definitions and chemical compositions[cite: 4].
Addressing Inverted Duty Structures and Judicial Boundaries
An inverted duty structure occurs when the tax rate on inputs purchased by a manufacturer is higher than the tax rate on the finished product sold[cite: 4]. This results in an accumulation of unutilized Input Tax Credit (ITC) in the manufacturer’s electronic credit ledger, tying up working capital[cite: 4]. Section 54(3) of the CGST Act provides for refunds of unutilized ITC under inverted duty structures, but limits refunds primarily to inputs, excluding input services[cite: 4].
In VKC Footsteps India Pvt. Ltd. v. Union of India (2021), taxpayers challenged Rule 89(5) of the CGST Rules, which excluded input services from the ITC refund calculation formula, arguing it violated Section 54(3) and created unequal treatment between input goods and input services[cite: 4]. The Supreme Court upheld the validity of Rule 89(5), ruling that the formulation of tax refund policies is a matter of legislative policy[cite: 4]. The Court observed that while the exclusion of input services created practical hardships for manufacturers, rectifying statutory inconsistencies in fiscal equations remains the duty of Parliament and the GST Council rather than the judiciary[cite: 4]. Following this judgment, expert committees under the GST Council have prioritized structural rate rationalizations to merge intermediate tax slabs (such as 12% and 18%) and correct inverted duty structures across key manufacturing sectors[cite: 4].
VI. Combating Tax Evasion and Safeguarding Taxpayer Rights
The Mechanics of Tax Evasion: Fake Invoicing and ITC Fraud
Preventing tax evasion remains a central operational challenge under GST[cite: 4]. The primary mechanism for fraudulent tax evasion involves creating networks of fictitious or “shell” entities that issue fake invoices without supplying actual goods or services[cite: 4]. These fake invoices are sold to operating businesses, allowing them to claim fraudulent Input Tax Credits against their output tax liabilities, directly defrauding the public exchequer[cite: 4].
In response, tax authorities have introduced stricter verification procedures[cite: 4]. Rule 86A of the CGST Rules empowers tax officers to block unutilized ITC in a taxpayer’s electronic credit ledger if there is “reason to believe” that credit was fraudulently claimed[cite: 4]. Furthermore, Section 16(2)(aa) mandates that a buyer can claim ITC only if the supplier has uploaded the corresponding invoice in their GSTR-1 return and it reflects in the buyer’s GSTR-2B statement[cite: 4].
Judicial Oversight on Burden of Proof: The Ecom Gill Coffee Standard
The legal standard for proving valid Input Tax Credit claims was established by the Supreme Court in State of Karnataka v. M/s Ecom Gill Coffee Trading Pvt. Ltd. (2023)[cite: 4]. The Court addressed whether a purchasing dealer can claim ITC simply by producing a tax invoice and proof of payment, even if the selling dealer failed to deposit the collected tax with the government[cite: 4].
The Supreme Court held that the burden of proving a valid ITC claim rests entirely on the purchasing taxpayer[cite: 4]. To satisfy this burden, the purchaser must produce clear evidence beyond invoices and payment receipts—including physical transport documents, e-way bills, delivery challans, vehicle registration details, and weighbridge receipts confirming actual movement of goods[cite: 4]. The Court affirmed that if a purchasing dealer fails to establish actual physical receipt of goods, tax authorities are fully entitled to disallow credit claims and initiate recovery proceedings[cite: 4]. While Ecom Gill Coffee strengthened anti-fraud mechanisms, it highlighted the compliance burden placed on honest buyers who must verify the tax compliance records of upstream suppliers[cite: 4].
VII. Conclusion
Eight years after its enactment, India’s Goods and Services Tax has transitioned from an ambitious statutory reform into an established system of digital fiscal governance[cite: 4]. The contemporary phase of GST reform demonstrates that indirect tax administration is a continuous process of institutional adaptation rather than a completed legislative act[cite: 4]. Moving from initial structural integration toward automated administration, data analytics, and rate rationalization has significantly enhanced compliance tracking and tax collection capabilities[cite: 4].
However, the future success of GST depends on maintaining a careful balance across three key areas[cite: 4]:
1. Technological Efficiency vs. Taxpayer Rights: Automated risk systems and AI-driven enforcement must be supported by statutory procedural protections, ensuring that automated flags do not undermine due process, fair hearings, and small business operations[cite: 4].
2. Uniformity vs. Cooperative Federalism: The institutional framework of the GST Council must respect state legislative autonomy as recognized in Mohit Minerals, fostering genuine political consensus between the Union and States[cite: 4].
3. Anti-Evasion vs. Commercial Ease: Statutory measures to curb fraudulent invoice networks must remain targeted, avoiding excessive administrative burdens on honest businesses[cite: 4].
As India’s economy becomes increasingly digitized, the continued refinement of GST will play a central role in shaping the country’s fiscal and constitutional future[cite: 4].
References
[1] INDIA CONST. art. 246A, 269A, 279A[cite: 4].
[2] Constitution (One Hundred and First Amendment) Act, 2016 (India)[cite: 4].
[3] Central Goods and Services Tax Act, No. 12 of 2017, INDIA CODE (2017)[cite: 4].
[4] Integrated Goods and Services Tax Act, No. 13 of 2017, INDIA CODE (2017)[cite: 4].
[5] Goods and Services Tax (Compensation to States) Act, No. 15 of 2017, INDIA CODE (2017)[cite: 4].
[6] Union of India v. Mohit Minerals Pvt. Ltd., (2022) 4 SCC 481 (India)[cite: 4].
[7] VKC Footsteps India Pvt. Ltd. v. Union of India, (2022) 2 SCC 603 (India)[cite: 4].
[8] State of Karnataka v. M/s Ecom Gill Coffee Trading Pvt. Ltd., 2023 SCC OnLine SC 248 (India)[cite: 4].
[9] Central Goods and Services Tax Rules, 2017, Gazette of India (2017)[cite: 4].
[10] GST Council, Reports and Recommendations of the GST Council Meetings (2017–2026), Ministry of Finance (India)[cite: 4].
[11] Revenue & Policy Division, Eight Years of GST: Performance, Challenges and the Road Ahead, Ministry of Finance (2025/2026)[cite: 4].
