TPM Consultants: March 2026 - US Supreme Court Ruling On IEEPA Tariffs: Key Takeaways

• Between April to August 2025, the US Government imposed tariffs on virtually all trading partners under International Emergency Economic Powers Act (IEEPA). In February 2026, the Supreme Court held that IEEPA did not authorise the President to unilaterally impose tariffs. Accordingly, the Supreme Court found the tariffs to be ultra vires the IEEPA.
• Pursuant to such decision, the US Customs and Border Protection issued a formal guidance and ceased collecting tariffs with effect from 24th February 2026.
• However, it is unclear whether importers shall be eligible to refund of tariffs paid, irrespective of whether they have filed an appeal.
• The limitation period for filing such an appeal does not expire until either of (a) two years after the institution of IEEPA tariffs; or (b) two years after the date of entry of the specific entry that was subject to IEEPA tariffs.
• In view of the withdrawal of the measures, the US Government has announced a tariff of 10% on merchandise imports from all countries to address a 'balance-of-payments disequilibrium', pursuant to Section 122 of the Trade Act. Unless extended by the US Congress, such measures can remain in force only for a period of 150 days.
• Considering the change in circumstances, the framework deal agreed upon between India and the USA may also require re-balancing, particularly since reduction in tariffs formed a key cornerstone of the framework.

The Scope of the SCOTUS Ruling

The International Emergency Economic Powers Act ('IEEPA') permits the President of the United States to take measures to 'regulate international commerce' in the event of a national emergency.

On 2nd April 2025, the Trump administration declared that the 'large and persistent' merchandise trade deficit of the USA amounted to a national emergency and accordingly, announced tariffs on merchandise imports from virtually all trading partners². In February 2025, the administration had also declared a national emergency over trafficking of the narcotic, fentanyl and declared tariffs on Canada³, Mexico⁴ and China⁵ for purportedly enabling or facilitating such trafficking.

In August 2025, the administration also imposed tariffs on imports from India for its purchases of crude oil from Russia, in furtherance of a national emergency recognised earlier arising out of the conflict between Russia and Ukraine⁶. Though these tariffs were withdrawn on 6th February 2026⁷, the withdrawal was contingent on fulfilment of certain continuing commitments, and therefore, it is worth noting that these tariffs were also imposed pursuant to the IEEPA.

On 20th February 2026, in Learning Resources v Trump⁸, Supreme Court of the US ("SCOTUS") ruled that IEEPA did not authorise the President to unilaterally impose tariffs, as tariffs are essentially taxes and imposition of taxes is within the exclusive domain of the legislature, unless expressly delegated. Accordingly, all tariffs imposed by the President pursuant to IEEPA were ultra vires. Consequently, the Trump administration issued an executive order directing U.S. Customs and Border Protection (CBP) to cease collection of tariffs imposed under IEEPA 'as soon as practicable'⁹. The US CBP issued a formal guidance to this effect, stating that the tariffs would cease to be applicable from 24th February 2026¹⁰.

The Question of Refunds

SCOTUS did not rule on the question of refunds. Therefore, as yet, there is no clarity on whether importers are eligible for refund of tariffs already paid. Clarity is expected to emerge only once the US Court of International Trade ('CIT'), the court of first instance for international trade matters, issues its ruling on the cases filed before it requesting refunds.

Further, there is lack of consensus on the eligibility conditions for refunds. While it is possible the CIT may issue a carte blanche order directing universal refunds, it may also limit the scope of its orders to the specific appellants before it only. If so, companies would have to file appeals before the CIT specifically requesting refunds, and in fact, several companies have filed such 'me-too' appeals already.

However, the limitation period for filing such an appeal does not expire until either of (a) two years after the institution of IEEPA tariffs; or (b) two years after the date of entry of the specific entry that was subject to IEEPA tariffs¹¹. Further, CIT has clarified that filing of protests with the CBP regarding liquidation of entries is not necessary for claiming refunds¹². Therefore, unless a party has very significantly high stakes, waiting for further clarity to emerge is advisable, since the costs involved in pursuing such claims is likely to be high.

Potential Trade Measures under Other Legislations

In view of the imminent withdrawal of the tariffs imposed under IEEPA, the Trump administration has announced a tariff of 10% on merchandise imports from all countries to address a 'balance-of-payments disequilibrium', pursuant to Section 122 of the Trade Act, 1974¹³. Thought it was announced by the administration shortly thereafter that the tariff would be levied at 15% (the maximum permissible rate under the provision)¹⁴, the official proclamation has not yet been revised to reflect this, and the guidance issued by CBP prescribes a rate of 10%¹⁵. The tariffs came into effect on 24th February 2026 and can remain in force for a maximum of 150 days, unless extended by the US Congress (the federal legislature of the USA). The duties will be leviable in addition to existing MFN duties and any other duties (anti-dumping duties, countervailing duties etc) applicable.

It is worth noting that under Article XII of GATT and the Understanding on the Balance-of-Payments Provisions of the General Agreement on Tariffs and Trade 199416, measures taken to address balance-of-payments issues are reportable to the WTO Committee on Balance-of-Payments, which is mandated to carry out consultations in order to review all restrictive import measures taken for balance of payments purposes.

In the coming days, it is expected the administration may also take a variety of other measures to re-institute the tariffs in effect. The most prominent recourses available with the administration are summarised below.

Impact on Trade Deal between India and the USA

On 7 February 2026, India and the USA announced the finalisation of the framework for an interim trade agreement¹⁷. Pursuant to the agreed framework, the rate of levy of reciprocal tariffs was decreased from 25% to 18%. In light of the withdrawal of the reciprocal tariffs pursuant to the SCOTUS verdict, there is some uncertainty regarding the deals, since the reciprocal tariffs were a core issue under negotiation and presumably formed the basis for multiple concessions.

The framework provides that 'in the event of any changes to the agreed upon tariffs of either country, the USA and India agree that the other country may modify its commitments'. Therefore, in view of the withdrawal of the reciprocal tariffs, it remains a possibility that the scope of the trade agreement may be revisited, especially since only a framework has been agreed upon and an agreement, interim or final, has not been signed yet. Recently, the Union Minister for Commerce and Industry, Shri Piyush Goyal, has also highlighted the fact that the framework provides for 'rebalancing' in the event of a change in circumstances18. However, it may take some time for clarity to emerge on this issue.

Footnotes

2 Executive Order 14257 of 2 April 2025 (Regulating Imports With a Reciprocal Tariff To Rectify Trade Practices That Contribute to Large and Persistent Annual United States Goods Trade Deficits) (United States, 2 April 2025)

3 Executive Order: Imposing Duties to Address the Flow of Illicit Drugs Across Our National Border (United States, 1 February 2025)

4 Executive Order: Imposing Duties to Address the Situation at Our Southern Border (United States, 1 February 2025)

5 Executive Order: Imposing Duties to Address the Synthetic Opioid Supply Chain in the People's Republic of China (United States, 1 February 2025)

6 Executive Order 14329 of 6 August 2025 (Addressing Threats to the United States by the Government of the Russian Federation) (United States, 6 August 2025)

7 Executive Order: Modifying Duties to Address Threats to the United States by the Government of the Russian Federation (United States, 6 February 2026)

8 607 U.S. ____ (2026) | Docket No. No. 24–1287

9 Executive Order: Ending Certain Tariff Actions (United States, 20 February 2026)

10 CSMS # 67834313 – Ending Collection of International Emergency Economic Powers Act Duties (U.S. Customs and Border Protection, 22 February 2026)

11 28 U.S.C. § 1581(i)

12 AGS Company Automotive Solutions v. United States, CIT Slip Op. 25-154

13 Proclamation: Imposing a Temporary Import Surcharge to Address Fundamental International Payments Problems (United States, 20 February 2026)

14 President Trump 15% tariff increase after Supreme Court decision (The Hindu 23 February 2026)

15 CSMS # 67844987 – Imposing Temporary Section 122 Duties (U.S. Customs and Border Protection, 23 February 2026)

16 Understanding on the Balance-of-Payments Provisions of the General Agreement on Tariffs and Trade 1994, WTO Doc 09-BOPS (adopted 27 August 2002)

17 Press Release, Press Information Bureau, Government of India (Release ID: 2224783) (Press Information Bureau, New Delhi, 7 Feb 2026) 18 'India-US Trade Deal May Be Rebalanced — Piyush Goyal' (Economic Times, 27 February 2026) This article was first published by author on Mondaq, available at link herein.

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