Reform GST, India Must Fix Its Distortive Input Tax Credit Chain
As Rate Rationalization Takes Center Stage, Deeper Structural Issues in the Input Tax Credit Framework Remain Unaddressed—Undermining Tax Neutrality, Export Competitiveness, and Industrial Growth
India’s goods and services tax still struggles with a basic design problem: the integrity of its input tax credit chain. The recent rate rationalization simplified slabs, but its merger of the 12 per cent category with the 5 per cent slab largely applies to suppliers where input tax credit is restricted or unavailable. In such cases, the system resembles cascading turnover-style taxation and weakens the value-added tax principle of credit and tax neutrality. So, beyond rate adjustments, deeper structural issues remain.
The proliferation of amendments and layered restrictions has made the law increasingly intricate and compromised ITC chain integrity. Without restoring credit neutrality, simplification of rates alone cannot make GST function as a true VAT. The Union budget for 2026-27 offered an opportunity to complete this unfinished reform. Industry had expected rationalization of the ITC framework, which remains the most distortionary feature of the current system. That opportunity was missed. The result is continued working-capital blockage, avoidable tax cascades and high compliance costs for businesses.
The Promise of GST
A well-designed GST would be a destination-based consumption tax in which business-to-business transactions are tax-neutral. Taxes paid on inputs, input services and capital goods are fully creditable against output tax, ensuring that tax is levied only on the value added and never becomes a business burden. Preventing tax cascades across the value chain preserves competitiveness in both domestic and export markets.
This is the fundamental principle of a value-added tax. Unlike a turnover tax, which taxes every transaction and creates cascading costs, a VAT taxes only the value added at each stage. The credit mechanism is what makes this possible. When every business can claim credit for taxes paid on its inputs, the tax burden falls only on final consumption.
International experience shows that the strength of a GST lies less in its rate structure and more in the breadth of its base and integrity of its credit mechanism. Countries with minimal exclusions and seamless credit chains achieve higher revenue productivity alongside lower compliance costs. A fragmented base with blocked credits, in contrast, distorts investment and production decisions.
Where India’s GST Falls Short
India’s ITC framework departs from that principle in significant ways. Multiple restrictions, conditionalities and outright denials of credit have converted what should be a pass-through tax into a cost-imposing one. Blocked credit implies a cascade that raises production cost.
Consider the treatment of capital goods. GST paid on immovable capital goods is denied to service providers and restricted for manufacturers to plant and machinery. Yet, such capital goods are not “consumed”; they are used to conduct business operations. Denial of immediate credit in these cases effectively taxes investment itself. When a firm invests in a factory building or a piece of machinery, it should be able to claim credit for the tax paid on that investment. Instead, under the current system, that tax becomes a cost that must be recovered over years, if at all. This is not how a VAT should work.
The problem is compounded by the exclusion of major sectors such as petroleum, electricity, real estate and alcohol from GST coverage. Taxes paid on these cannot be used as credits against GST liabilities and therefore become embedded in downstream costs. Structurally, thus, India’s GST is an incomplete VAT. When key inputs lie outside its ambit, the credit chain remains patchy and hidden taxes accumulate within production. This ultimately burdens consumers.
The Impact on Exporters
The consequences are particularly visible in the export sector. Under the GST framework, exports are intended to be zero-rated so that domestic taxes do not raise export prices. In practice, however, denial of upstream credits and delays in refunds embed unrecoverable taxes into the cost structure of exporters.
When taxes paid on inputs, services or capital goods cannot be fully recovered, exporters must finance these amounts through additional working capital. This raises costs and weakens their price edge in global markets, especially in thin-margin sectors. In an increasingly competitive trade environment, even small cost disadvantages can erode market share.
The distortion is worse in sectors where supplies fall under the 5 per cent rate with restricted ITC. In such cases, ITC on capital goods is either not allowed or significantly curtailed. So GST effectively acts as a tax on production. The tax base, in effect, shifts from consumption to investment. Firms investing in machinery, logistics infrastructure or technology in these sectors cannot fully recover the taxes paid on capital equipment.
The Investment Distortion
The implications are significant. First, higher investment costs discourage capacity expansion and modernization in export-oriented sectors. A firm considering whether to upgrade its machinery must factor in the unrecoverable GST on that investment. This makes the investment less attractive, leading to postponement or cancellation.
Second, domestic producers operating under truncated credit regimes may find themselves at a disadvantage relative to foreign suppliers that benefit from full VAT neutrality. This can encourage greater reliance on imports in certain fields. Why produce domestically if the tax system penalizes domestic production?
Third, by raising the cost of capital formation, such restrictions undermine productivity growth and the development of globally competitive manufacturing ecosystems. Productivity growth depends on investment. When investment is taxed, productivity lags.
In addition, restrictions on credit for capital goods distort relative prices within a production system. Firms facing higher effective tax costs on domestic investment may delay modernization or substitute local products with imported intermediates and finished goods produced under fully creditable VAT regimes abroad. Over time, such asymmetries weaken domestic value addition and reduce the attractiveness of India as a location for globally integrated supply chains.
The Cost of Inaction
An inadequate ITC mechanism deters “friend shoring” by international players. Restoring full credit for business inputs and capital goods is thus essential not only for tax neutrality, but also for the sake of India’s industrial competitiveness. We have let a tax designed for consumption influence where firms locate manufacturing facilities, how much they invest and whether they participate in global supply chains.
The cost of inaction is not just theoretical. Exporters are already feeling the pinch. Manufacturers are making investment decisions based on tax considerations rather than economic efficiency. Global supply chain managers are looking elsewhere for locations where the tax system does not penalize investment.
The Path to Reform
If India aspires to become a global manufacturing hub, GST must function as a genuine VAT. We must eliminate blocked credits unrelated to personal consumption, gradually draw excluded sectors into the GST base and ensure time-bound refunds supported by full digitization. Restoring credit neutrality would reduce costs, improve compliance and strengthen export competitiveness.
Several specific reforms are needed. First, the restrictions on ITC for capital goods must be removed. Investment should not be taxed. Whether a firm builds a factory, buys machinery, or acquires technology, it should be able to claim immediate credit for the tax paid.
Second, the excluded sectors—petroleum, electricity, real estate, alcohol—must be brought into the GST base. This is politically difficult but economically necessary. As long as key inputs remain outside the system, the credit chain will remain broken.
Third, the refund system must be streamlined. Exporters cannot afford to wait months for refunds. The government must ensure that refunds are processed automatically, quickly, and reliably. Digitization can help, but it requires commitment.
Fourth, the rate structure must be rationalized further. The recent simplification is welcome, but more can be done. A simpler rate structure would reduce compliance costs and make the system easier to administer.
The Unfinished Agenda
The Union budget for 2026-27 was an opportunity to address these issues. Industry had expected rationalization of the ITC framework, which remains the most distortionary feature of the current system. That opportunity was missed.
But the agenda is not closed. The next phase of GST reform must focus on ITC. Rate rationalization was the easy part. Fixing the credit chain is harder, but it is where the real gains lie.
The government has shown that it can reform GST. The introduction of the tax itself was a monumental achievement. The recent rate rationalization shows that the political will exists to improve the system. Now it must turn to the deeper structural issues.
Conclusion: A Tax That Works for Growth
India’s GST was designed to be a world-class tax system. It has the potential to transform the way business is done, to eliminate cascading taxes, to create a single national market. But that potential will not be realized until the credit chain is fixed.
A genuine VAT does not tax investment, does not distort production decisions, does not disadvantage domestic producers relative to foreign competitors. India’s GST, in its current form, does all of these things. The next phase of reform must focus on restoring the integrity of the credit chain.
If India aspires to become a global manufacturing hub, GST must function as a genuine VAT. The opportunity was missed in the last budget, but the need remains urgent. The next budget must take up the unfinished agenda.
Q&A: Unpacking India’s GST Credit Chain Challenge
Q1: What is the input tax credit chain, and why is its integrity crucial for GST?
A: The input tax credit chain allows businesses to claim credit for taxes paid on inputs, input services, and capital goods against their output tax liability. This ensures that tax is levied only on value added, not on the full value of transactions, preventing cascading taxes. A well-functioning credit chain makes GST a true value-added tax. When credit is restricted or denied, GST becomes a cost-imposing tax that distorts production decisions and raises costs.
Q2: What are the main distortions in India’s current ITC framework?
A: Multiple restrictions, conditionalities, and outright denials of credit have compromised the system. Key distortions include: GST paid on immovable capital goods is denied to service providers; credit is restricted for manufacturers to plant and machinery; major sectors (petroleum, electricity, real estate, alcohol) are excluded from GST coverage, breaking the credit chain; and sectors under the 5% slab face restricted ITC. This means investment is effectively taxed and hidden costs accumulate in production.
Q3: How does the ITC framework affect India’s export competitiveness?
A: Under GST, exports are meant to be zero-rated so domestic taxes do not raise export prices. However, denial of upstream credits and delays in refunds embed unrecoverable taxes into exporters’ cost structures. Exporters must finance these amounts through additional working capital, raising costs and weakening price competitiveness. In thin-margin sectors, even small cost disadvantages can erode market share. The effect is worse in 5% slab sectors where capital goods ITC is curtailed.
Q4: What are the implications of blocked credits for investment and manufacturing?
A: Blocked credits have several negative implications: they raise investment costs, discouraging capacity expansion and modernization; they put domestic producers at a disadvantage relative to foreign suppliers with full VAT neutrality; they undermine productivity growth by raising capital formation costs; they distort relative prices within production systems; and they reduce India’s attractiveness for “friend shoring” and globally integrated supply chains. A tax designed for consumption is influencing where firms locate manufacturing facilities.
Q5: What reforms are needed to fix the GST credit chain?
A: Key reforms include: eliminating restrictions on ITC for capital goods so investment is not taxed; gradually drawing excluded sectors (petroleum, electricity, real estate, alcohol) into the GST base; streamlining refund systems with time-bound, fully digitized processing; and further rationalizing the rate structure. The next phase of GST reform must focus on ITC, as rate rationalization alone cannot make GST function as a true VAT. Restoring credit neutrality would reduce costs, improve compliance, and strengthen export competitiveness.
