Nine years of GST: How India’s biggest tax reform is powering growth, simplifying business and shaping a unified market

India marks nine years of the Goods and Services Tax (GST) on July 1, 2026, a landmark reform that fundamentally transformed the country’s indirect taxation system. Introduced in 2017 as one of independent India’s most ambitious economic reforms, GST replaced a complex web of Central and State taxes with a unified tax framework, creating what policymakers describe as a true “One Nation, One Tax” system.

Over nearly a decade, GST has evolved from a structural tax reform into a digital governance ecosystem that has reshaped tax administration, improved compliance, expanded the formal economy and strengthened cooperative federalism. With the rollout of the Next-Generation GST reforms – popularly referred to as GST 2.0 – in 2025, the government has sought to simplify tax rates further while reducing compliance burdens for businesses and providing greater relief to consumers.

As the country observes GST Day, the reform stands not only as a milestone in India’s fiscal history but also as a reflection of the country’s continuing efforts to build an integrated, transparent and technology-driven economy aligned with the vision of Viksit Bharat.

A Historic Shift in India’s Tax Structure

Before the introduction of GST, India’s indirect taxation system was fragmented across multiple Central and State-level levies. Manufacturers, traders and service providers were required to comply with a host of taxes including excise duty, service tax, value-added tax (VAT), central sales tax, octroi, entry tax, luxury tax and entertainment tax, among others.

The existence of multiple taxes often resulted in cascading taxation, where taxes were levied on taxes, increasing production costs and making Indian goods less competitive. Different tax structures across states also created barriers to the seamless movement of goods and complicated interstate trade.

GST fundamentally changed this landscape by subsuming 17 different taxes and 13 cesses into a single integrated taxation framework. The reform established a destination-based consumption tax under which tax revenues accrue to the state where goods or services are ultimately consumed, rather than where they are produced.

The new system significantly reduced tax cascading, brought greater transparency and helped create a unified national market.

Building ‘One Nation, One Tax’

The guiding principle behind GST has been to establish uniformity across India’s vast domestic market.

Today, GST applies to nearly all goods and services, with alcoholic liquor for human consumption remaining outside its ambit. Some petroleum products have also been kept outside GST until notified by the GST Council.

The reform introduced common tax rates applicable across the country, reducing variations between states and simplifying business operations for companies operating in multiple regions.

The GST framework operates through a dual model. For transactions within a state, the Centre levies the Central Goods and Services Tax (CGST), while states levy the State Goods and Services Tax (SGST). Interstate supplies attract the Integrated Goods and Services Tax (IGST), ensuring seamless credit flow across state boundaries.

This structure has enabled businesses to claim input tax credits more efficiently while facilitating smoother interstate trade.

The GST Council: A Model of Cooperative Federalism

One of the defining institutional features of GST has been the establishment of the GST Council, which has emerged as one of India’s strongest examples of cooperative federalism.

The Council brings together the Union Finance Minister and finance ministers from all states and Union Territories to collectively decide GST rates, exemptions and policy changes.

Over the past nine years, the Council has regularly reviewed the tax structure, responded to economic developments and introduced reforms through consensus-driven decision-making.

This collaborative mechanism has allowed the GST system to remain flexible while balancing the fiscal interests of both the Centre and the states.

Digital Backbone Powers GST

A major reason behind GST’s operational success has been its strong digital infrastructure.

The Goods and Services Tax Network (GSTN), jointly owned by the Centre and the states, serves as the technology backbone of the GST ecosystem.

The GSTN portal has enabled end-to-end digital tax administration, allowing businesses to register, file returns, generate invoices and claim tax credits online.

Over the years, e-invoicing, automated return filing, real-time invoice matching and digital verification systems have significantly reduced manual intervention.

The digitisation of tax administration has also increased transparency, improved accuracy and reduced compliance costs.

GST 2.0: Simplifying the Next Phase

In September 2025, the GST Council approved the Next-Generation GST reforms, widely referred to as GST 2.0, marking the most comprehensive overhaul of the indirect tax system since its launch.

The reforms were designed to simplify tax structures while making the system more consumer-friendly and business-oriented.

One of the most significant changes has been the rationalisation of tax slabs. The revised structure primarily revolves around two major tax rates – 5 per cent and 18 per cent – making classification easier and reducing disputes.

To maintain revenue neutrality while protecting essential goods, a 40 per cent tax rate has been introduced for luxury and sin goods such as tobacco products, online gaming, lotteries, aerated beverages, luxury automobiles, yachts and private aircraft.

The reforms have also simplified GST registration, accelerated refund mechanisms and reduced procedural complexity, particularly benefiting MSMEs and startups.

Relief for Households

The latest reforms are expected to have a direct impact on household budgets by lowering the cost of several goods and services.

Reduced GST rates have made many products more affordable, helping improve purchasing power and support consumption.

The extension of GST exemptions to some insurance products and essential medicines is expected to strengthen financial protection for households while improving access to healthcare.

By reducing indirect tax burdens on everyday goods and services, policymakers expect the reforms to stimulate demand and encourage broader economic activity.

A Boost for MSMEs

Small businesses have been among the biggest beneficiaries of successive GST reforms.

The government has steadily raised exemption thresholds, simplified return filing and eased registration requirements over the years.

The GST registration threshold for suppliers of goods was increased from ₹20 lakh to ₹40 lakh, reducing compliance obligations for smaller enterprises.

Similarly, the turnover limit under the Composition Scheme was raised from ₹75 lakh to ₹1.5 crore, enabling more small businesses to benefit from simplified tax payment mechanisms.

The Quarterly Return Monthly Payment (QRMP) Scheme has further reduced compliance costs by allowing eligible businesses with turnover up to ₹5 crore to file returns quarterly instead of monthly.

Taxpayers without transactions can now file NIL returns through SMS, further easing procedural burdens.

Small intra-state sellers operating through e-commerce platforms have also received relief from mandatory GST registration requirements.

Together, these reforms have significantly reduced compliance costs while encouraging greater formalisation of small businesses.

Encouraging Manufacturing and Exports

GST reforms have also sought to strengthen India’s manufacturing competitiveness.

Reduced tax rates on key industrial inputs, including cement and handicrafts, have lowered production costs for businesses.

The correction of inverted duty structures has improved domestic value addition and enhanced export competitiveness.

Simplified tax classifications have reduced disputes while creating greater certainty for industry.

The reforms are also expected to benefit farmers, artisans, exporters and sustainable manufacturing sectors by lowering input costs and improving market access.

Technology Driving Compliance

Technology has become one of the defining features of modern GST administration.

Artificial intelligence, machine learning and advanced data analytics are increasingly being used to identify tax evasion, assess risk profiles and improve compliance monitoring.

Rather than relying solely on manual scrutiny, authorities now analyse transaction patterns, invoice data and risk indicators to detect anomalies.

These technologies allow tax authorities to focus enforcement efforts on high-risk taxpayers while reducing regulatory burdens for compliant businesses.

Automated matching of supplier liabilities and recipient input tax credits has also significantly reduced errors and simplified reconciliation.

The result has been a more transparent, efficient and predictable tax administration system.

Expanding the Formal Economy

Perhaps one of GST’s most significant achievements has been the rapid expansion of India’s formal taxpayer base.

The number of registered GST taxpayers has increased from 66.5 lakh in 2017 to approximately 1.65 crore by May 2026, reflecting growing formalisation across sectors.

The increase in registrations suggests that more businesses are entering the organised economy and participating in the formal tax system.

GST collections have also shown consistent growth over the years.

Annual gross GST collections have risen from approximately ₹7.4 lakh crore in 2017-18 to around ₹22.27 lakh crore during 2025–26.

The momentum has continued into the current financial year, with collections touching nearly ₹4.37 lakh crore during April and May 2026.

According to the government, rising collections indicate not only stronger economic activity but also improved compliance, better reporting systems and a broader tax base.

Beyond Revenue Collection

Nine years after its launch, GST is no longer viewed merely as a tax reform.

It has become an important instrument for improving ease of doing business, promoting digital governance, encouraging economic formalisation and strengthening fiscal transparency.

The integrated tax system has reduced logistical barriers, simplified interstate commerce and enhanced coordination between the Centre and the states.

Businesses today operate within a far more predictable tax environment than existed before 2017.

At the same time, continuous reforms indicate that GST remains a work in progress, evolving in response to economic needs, technological developments and stakeholder feedback.

The Road Ahead

As India moves toward becoming a developed economy by 2047, GST is expected to play an increasingly important role in supporting sustainable growth.

Future reforms are likely to focus on further simplification, deeper digital integration, wider formalisation and enhanced taxpayer services.

With GST 2.0 laying the foundation for the next phase of reforms, policymakers believe the indirect tax system is becoming more responsive to the needs of consumers, businesses and governments alike.

Nine years after its implementation, GST has transformed the way India taxes, trades and does business. What began as a structural fiscal reform has evolved into a cornerstone of India’s economic architecture – supporting growth, strengthening cooperative federalism and advancing the vision of a more integrated, transparent and competitive economy.