Nintendo’s U.S. subsidiary has filed a lawsuit against the federal government, naming the Department of the Treasury, the Department of Homeland Security and U.S. Customs and Border Protection as defendants. The case was registered on March 6, 2026, in the U.S. Court of International Trade.
The company says the custom duties at issue were imposed unlawfully and caused substantial financial harm. In its complaint, Nintendo is asking for the return of amounts it paid when importing goods that it says exceeded lawful tariff levels, as well as the interest that has accrued on those overpayments.
The contested tariffs were introduced in 2025 under the administration of President Donald Trump. On February 20, 2026, the U.S. Supreme Court ruled that the imposition of those duties was unlawful, even as the government established new rates for the applicable charges. Nintendo is one of several businesses and a number of states that have launched legal actions seeking refunds of duties paid under the earlier tariff scheme.
The litigation is part of a broader wave of suits challenging the legality of the 2025 tariff measures and attempting to recover sums paid by importers. The outcome of Nintendo’s claim will likely be influenced by related court decisions and any administrative adjustments to the tariff regime instituted by federal agencies.