IGST on Repaired Imports: Supreme Court to Hear Customs' Challenge to IndiGo's Exemption

New Delhi – The Supreme Court of India has agreed to examine a critical question at the intersection of customs and tax law: whether Integrated Goods and Services Tax (IGST) can be levied on aircraft parts that are re-imported after being repaired abroad. The apex court's decision will have far-reaching implications for the aviation industry and potentially other sectors that rely on international repair and maintenance services.

On Monday, a Bench comprising Justice B.V. Nagarathna and Justice R. Mahadevan issued a notice to InterGlobe Aviation, the parent company of IndiGo, seeking its response to a petition filed by the Customs Department. The petition challenges a landmark March 2024 judgment by the Delhi High Court, which had declared the imposition of IGST on such re-imports unconstitutional and quashed the relevant customs notification.

The case, titled Principal Commissioner of Customs Acc (Import) and others v. Interglobe Aviation Ltd , pits the revenue authorities—including the Union Government, the GST Council, and the Central Board of Indirect Taxes and Customs (CBIC)—against one of the country's largest airlines in a dispute that could redefine the tax treatment of cross-border service transactions involving goods.

The Core of the Dispute: A 'Double Levy' on Repaired Goods?

The legal battle stems from a common operational practice in the capital-intensive aviation industry. Airlines frequently send aircraft engines and other critical components overseas to specialized facilities for repairs, maintenance, and overhauls. When these repaired parts are brought back into India, they are subject to customs procedures.

Historically, customs notifications provided exemptions for such goods, requiring duty only on the fair cost of repairs and the freight and insurance charges for the round trip. However, with the advent of the Goods and Services Tax (GST) regime, the Central Board of Indirect Taxes & Customs (CBIC) issued a notification in 2021 that mandated the payment of IGST and cess on the value of the repaired articles upon re-importation, in addition to the standard customs duty on the repair value.

IndiGo challenged this levy before the Delhi High Court, arguing that it resulted in an impermissible form of double taxation. The airline contended that the repair service performed abroad was already classified as a "supply of service" under the IGST Act, for which the airline duly paid tax. Imposing an additional IGST levy on the re-imported physical goods, it argued, was tantamount to taxing the same transaction twice.

The Delhi High Court's Decisive Ruling

In a significant victory for the aviation sector, the Delhi High Court bench of Justice Yashwant Varma and Justice Ravinder Dudeja sided with IndiGo. The High Court held that the additional levy of IGST and cess under Section 3(7) of the Customs Tariff Act, 1975 on the re-import of repaired aircraft parts was unconstitutional.

The judgment was anchored in the principle that once a transaction is taxed as a service, it cannot be taxed again as goods. The court observed that an "additional duty even after the transaction has been subjected to the imposition of a tax treating it to be a supply of service would be clearly unconstitutional and cannot be sustained.”

Furthermore, the High Court struck down the portion of the customs notification that imposed this IGST. It found that the levy contravened the government's exemption powers under Section 25(1) of the Customs Act, 1962. The court reasoned that since a broad exemption for such aviation imports already existed under Entry 77 of Notification No. 50/2017-Customs, the government could not selectively impose IGST on the same goods through a separate notification. This, the court found, amounted to an arbitrary and impermissible narrowing of a public-interest exemption.

The Government's Appeal to the Apex Court

Unwilling to concede on a matter with significant revenue implications, the Customs Department, represented by Additional Solicitor General N. Venkataraman, has now escalated the issue to the Supreme Court.

In its appeal, the government argues that the Delhi High Court's decision effectively nullifies a distinct fiscal levy specifically enacted by Parliament through the IGST Act. The government's position is that the IGST levied under the Customs Tariff Act upon the import of goods is a separate and independent event from the IGST paid on the "supply of service" for the repair work itself. According to the petitioners, the former is a tax on the goods entering the country, while the latter is a tax on the service transaction.

The government contends that the High Court erred in conflating these two taxable events and that its ruling improperly encroaches upon Parliament's legislative authority to impose taxes. The core of their argument is that the re-import of a repaired item is a distinct event of "import" that triggers a customs levy, which, under the post-GST framework, includes IGST.

Legal and Industry-Wide Implications

The Supreme Court's examination of this case is poised to have profound consequences.

• Financial Impact on Airlines: For the airline industry, which operates on thin margins, the outcome is critical. The cost of maintaining and repairing complex aircraft components is substantial. An additional IGST levy on the full value of these re-imported parts represents a significant financial burden that increases operational costs. A decision upholding the High Court's ruling would provide much-needed relief and cost certainty.

• Clarifying the GST-Customs Interface: The case forces a crucial clarification of the complex relationship between the GST and Customs regimes. It will determine how cross-border transactions that have both a service and a goods component are to be taxed. The Supreme Court's ruling will likely set a binding precedent on whether the principle against double taxation applies across these two distinct but overlapping legislative frameworks.

• Impact on the 'Make in India' Initiative: The tax treatment of imported repaired goods could influence MRO (Maintenance, Repair, and Overhaul) strategies. An unfavorable tax regime might disincentivize domestic companies from sending high-value goods abroad for specialized repairs, even when local capabilities are nascent. Conversely, it could also be argued that a higher tax on imported repairs might spur the development of domestic MRO facilities, aligning with the 'Make in India' initiative.

• Broader Sectoral Relevance: While the immediate case involves the aviation industry, the legal principles at stake are relevant to any industry that re-imports goods after repairs, processing, or value addition abroad. This includes sectors like heavy machinery, electronics, shipping, and defense manufacturing.

The legal community will be closely watching as the Supreme Court delves into the nuanced arguments presented by both sides. The final verdict will not only resolve the specific dispute between IndiGo and the Customs Department but will also shape the landscape of indirect taxation on international trade and services in India for years to come.