While the Goods and Services Tax has transformed India's indirect tax landscape, complexities surrounding Input Tax Credit continue to create compliance burdens, working capital pressures and legal disputes across industries.

Nine years after the implementation of the Goods and Services Tax (GST), India has undoubtedly achieved one of the most significant tax reforms in its economic history. The unified indirect tax regime has simplified taxation, reduced cascading taxes and created a common national market. However, despite these achievements, Input Tax Credit (ITC)—one of GST's foundational pillars—continues to be one of the most debated and challenging aspects of the system.

Originally envisioned as a seamless mechanism that would allow businesses to claim credit for taxes paid on purchases, ITC has gradually evolved into a highly regulated, technology-driven compliance framework. Today, businesses often face delays in claiming legitimate tax credits due to supplier defaults, invoice mismatches, return filing discrepancies and stringent regulatory conditions.

For companies across manufacturing, trading, infrastructure and services, the certainty of receiving Input Tax Credit has become almost as important as the credit itself.

The Original Vision Behind GST

When GST was introduced on July 1, 2017, its primary objective was to eliminate the cascading effect of taxes that existed under the previous indirect tax regime.

Earlier, businesses had to navigate multiple taxes, including:

• Central Excise Duty

• Service Tax

• Value Added Tax (VAT)

• Entry Tax

• Octroi

• Luxury Tax

• Various state-specific levies

GST replaced these fragmented taxes with a single nationwide system, allowing businesses to claim tax credits throughout the supply chain and ensuring that tax was levied only on value addition.

This seamless flow of credit was expected to reduce costs, improve competitiveness and enhance India's overall business environment.

What Exactly is Input Tax Credit?

Input Tax Credit allows businesses to deduct the GST paid on purchases from the GST payable on sales.

For example:

• A manufacturer purchases raw materials and pays GST.

• The finished product is sold by charging GST to customers.

• The GST already paid on inputs can be adjusted against the output tax liability.

This mechanism prevents double taxation and keeps the tax burden limited to the value added at each stage of production.

Without an efficient ITC system, businesses effectively pay tax on tax, increasing costs across the economy.

From Seamless Credit to Conditional Credit

While the basic concept of ITC remains unchanged, the process of claiming it has become significantly more complex over the years.

Initially, GST operated largely on a self-assessment model where taxpayers claimed credit based on their records.

Gradually, multiple safeguards were introduced to curb tax evasion and fraudulent claims, including:

• Invoice matching requirements.

• GSTR-2B reconciliation.

• Rule 36(4) restrictions.

• Section 16(2)(aa) compliance.

• E-invoicing.

• Invoice Management System (IMS).

As a result, ITC is no longer solely dependent on a buyer's compliance. It now also depends on whether suppliers correctly upload invoices, file returns on time and deposit taxes with the government.

Supplier Compliance Now Determines Credit Eligibility

One of the most significant changes under GST has been the growing dependence on supplier behaviour.

Even when businesses:

• Receive goods or services,

• Make full payment,

• Maintain valid tax invoices,

• Record transactions correctly,

they may still lose or delay ITC if suppliers fail to meet compliance requirements.

This has effectively shifted a portion of tax compliance risk from suppliers to purchasers.

Businesses are increasingly required to monitor supplier filing behaviour, making GST compliance a collaborative responsibility across the supply chain.

GSTR-2B Has Changed Compliance Practices

The introduction of GSTR-2B, an auto-generated statement of eligible input tax credit, has significantly altered the compliance process.

Today, businesses generally rely on GSTR-2B before claiming ITC.

However, common issues include:

• Suppliers filing returns after the due date.

• Missing invoices.

• Incorrect GST identification numbers.

• Duplicate invoices.

• Data entry errors.

• Technical mismatches.

Finance teams now spend considerable time reconciling purchase registers with GSTR-2B every month to avoid future disputes.

Working Capital Continues to Remain Under Pressure

One of the biggest consequences of delayed ITC is the impact on business liquidity.

When credits remain unavailable:

• Taxes must be paid from internal funds.

• Cash flows weaken.

• Borrowing requirements increase.

• Business expansion slows.

• Financial planning becomes more difficult.

For small and medium-sized enterprises (MSMEs), blocked ITC can significantly affect day-to-day operations.

Companies operating on thin profit margins often face greater financial stress due to delayed credit availability.

Large Corporates Tighten Vendor Monitoring

GST compliance has increasingly become an important factor in vendor selection.

Large organizations now routinely evaluate suppliers based on:

• Timely GST return filing.

• Invoice accuracy.

• Historical compliance records.

• Tax payment consistency.

• Credit reflection in GSTR-2B.

Many businesses have also linked supplier payments to GST compliance.

In several cases, companies release the GST component of payments only after confirming that the corresponding tax credit has appeared in their GST records.

This has fundamentally reshaped supplier relationships across industries.

Certain Industries Face Greater Challenges

Although ITC affects almost every business, some sectors experience disproportionately higher compliance burdens.

Construction

Long project cycles mean input costs arise much earlier than project revenues, resulting in prolonged working capital blockage.

FMCG

Extensive supplier networks increase invoice reconciliation challenges and dependency on vendor compliance.

Textiles and Footwear

Inverted duty structures continue to create refund delays and cash flow pressure.

Renewable Energy

Developers often accumulate substantial GST credits during project construction while waiting for refunds.

Fertilisers

Large procurement networks and refund dependency make compliance particularly complex.

Litigation Around ITC Continues to Increase

Input Tax Credit has emerged as one of the most litigated areas under GST.

Frequent causes of disputes include:

• Supplier non-compliance.

• Credit reversals.

• Delayed claims.

• Technical filing errors.

• Invoice mismatches.

• Interpretation of eligibility conditions.

Businesses argue that genuine taxpayers should not be penalized for mistakes committed by independent suppliers.

The issue continues to generate significant litigation before appellate authorities and courts.

Technology Has Improved Compliance—but Added Complexity

India's GST ecosystem has become increasingly technology-driven.

Recent digital initiatives include:

• E-invoicing.

• E-way bills.

• Automated reconciliation.

• Invoice Management System.

• AI-based compliance monitoring.

• Digital audit tools.

While these systems have enhanced transparency and reduced fraudulent claims, many businesses believe they have also increased procedural complexity and compliance costs.

Companies now invest heavily in tax technology to manage evolving GST requirements efficiently.

What Businesses Want from the Next Phase of GST

Industry experts believe future GST reforms should focus on making ITC more predictable and business-friendly.

Key recommendations include:

• Stronger protection for compliant buyers.

• Reduced dependence on supplier defaults.

• Simpler invoice reconciliation.

• Faster refund processing.

• Streamlined dispute resolution.

• Greater automation.

• Reduced litigation.

Such reforms could significantly improve India's Ease of Doing Business while maintaining effective tax administration.

Why Efficient ITC Matters for India's Economy

A smoother ITC mechanism could provide widespread economic benefits.

Potential advantages include:

• Better working capital management.

• Increased private investment.

• Lower compliance costs.

• Stronger MSME growth.

• Improved manufacturing competitiveness.

• Faster economic expansion.

As India aims to become a global manufacturing hub, ensuring uninterrupted tax credit flow remains a critical policy priority.

Outlook

Nine years after GST transformed India's indirect tax system, Input Tax Credit remains its most significant operational challenge. While the tax reform has successfully unified markets and eliminated multiple layers of taxation, businesses continue to seek greater certainty in accessing legitimate tax credits. The next generation of GST reforms is expected to focus less on introducing additional compliance requirements and more on simplifying processes, protecting honest taxpayers and ensuring that ITC once again functions as the seamless credit mechanism originally envisioned.