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Costco Faces Class Action Over Price Increases from Tariffs

3/31/2026

Summary

Story summary

A proposed class action alleges Costco Wholesale Corporation (Costco) raised prices to offset import duties after tariffs were deemed unlawful by the U.S. Supreme Court.
Seven plaintiffs from multiple states filed the suit in the Western District of Washington.
The plaintiffs say Costco's plan to use tariff refunds for future price cuts does not compensate those who overpaid during February 2025 to February 2026.
Costco has not commented on the litigation.

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Story summary

A proposed class action alleges Costco Wholesale Corporation (Costco) raised prices to offset import duties after tariffs were deemed unlawful by the U.S. Supreme Court.
Seven plaintiffs from multiple states filed the suit in the Western District of Washington.
The plaintiffs say Costco's plan to use tariff refunds for future price cuts does not compensate those who overpaid during February 2025 to February 2026.
Costco has not commented on the litigation.