Droit Fiscal Américain

Legal Challenge Filed Against Trump Administration’s Global Tariffs

by: Olivier ThevozPublished on: 06/03/2026

Twenty-four U.S. states have filed suit in the Court of International Trade challenging global tariffs imposed under Section 122 of the Trade Act of 1974.

US Tax
Legal Challenge Filed Against Trump Administration’s Global Tariffs

Implementing the Supreme Court’s Decision: The Court of International Trade Orders Removal of IEEPA Tariffs

by: Olivier ThevozPublished on: 05/03/2026

The U.S. Court of International Trade ordered CBP to liquidate certain import entries without IEEPA tariffs following the Supreme Court’s decision invalidating those duties. The ruling may lead to significant refunds for importers and raises key questions for customs litigation.

US Tax
Implementing the Supreme Court’s Decision: The Court of International Trade Orders Removal of IEEPA Tariffs

U.S. Exit Tax and Swiss Occupational Pension Plans (LPP)

by: Olivier ThevozPublished on: 26/02/2026

Renouncing U.S. citizenship may trigger significant Exit Tax exposure, particularly on Swiss LPP pension capital. Understanding IRC §877A and Covered Expatriate rules is essential for international wealth planning.

US Tax
U.S. Exit Tax and Swiss Occupational Pension Plans (LPP)

U.S. Estate Tax and Prior Gifts: A Critical Risk in International Estate Planning

by: Olivier ThevozPublished on: 15/02/2026

How prior lifetime gifts can impact U.S. Estate Tax calculations and treaty credit planning for European investors and family offices.

US Tax
U.S. Estate Tax and Prior Gifts: A Critical Risk in International Estate Planning