Costco joins companies suing U.S. for tariff refunds if policy falls

Costco has sued the U.S. government to ensure it will receive refunds if the Supreme Court rejects President Donald Trump’s bid for sweepingauthority to impose tariffs.

In a complaint filed on Friday in the U.S. Court of International Trade in Manhattan, Costco said Trump’s use of the International Emergency Economic Powers Act to impose tariffs left it uncertain whether businesses can recoup sums they should not have paid.

The nation’s largest warehouse club operator said U.S. Customs and Border Protection denied its request for more time to make final calculations of tariffs owed, threatening its right to complete refunds even if the Supreme Court rules against Trump.

Get breaking National news

Customs and Border Protection had no immediate comment. Costco did not immediately respond to a request for comment.

• Canadian air passenger traffic to U.S. down for 9th consecutive month
• Algoma Steel to lay off 1,000 workers over ‘unprecedented tariffs’

Based in Issaquah, Washington, Costco joined dozens of companies suing to safeguard potential refunds. It is also among the largest, with US$275.2 billion of revenue in its fiscal year ending Aug. 31.

Other companies that have sued to preserve refunds include Bumble Bee Foods, Ray-Ban eyeglass maker EssilorLuxottica, Kawasaki Motors, Revlon and Yokohama Tire, court records show. During oral arguments on Nov. 5, Supreme Court justices from both sides of the political spectrum asked skeptical questions about whether Trump legally used the 1977 emergency powers law to impose tariffs.

The justices took the case on an accelerated basis, but have not said when they will rule.

Costco has taken multiple steps to address tariffs, including by reducing the number of suppliers, and relying more on local sourcing and its in-house Kirkland brand.

• Man mauled to death by lion after breaking into enclosure in Brazil
• A Canadian border officer was the victim of India’s ‘propaganda machine.’ Now he’s suing.
• Melania Trump reveals 2025 White House holiday decorations
• Trump says he’ll release MRI results, doesn’t know what the test was for

• California shooting: Witnesses urged to come forward in child’s birthday party murders
• White House says former Honduran president Hernandez was ‘set up’
• Trump’s MRI results standard for his age, indicate ‘excellent overall health’: White House
• Business Matters: Airbus says most jets have software fix after flight-control incident