# Costco is one of thousands of companies that started filing claims this month.

*business · news · 2026-04-29 · Chicago Sun-Times*

## Key points

- Costco faces a class action lawsuit alleging it should refund members tariff-related price increases.
- The U.S. Supreme Court ruled Trump's IEEPA tariffs unconstitutional, entitling importers to refunds.
- Costco and thousands of companies began filing refund claims via a new Customs online portal on April 20.
- Federal law does not require companies to return refunded tariff payments to their customers.
- The lawsuit seeks to include Costco customers from ten specific states who paid IEEPA-inflated prices.

**Companies:** Costco, Lululemon, FedEx, Nintendo, EssilorLuxottica
**Countries:** United States

[Read the full story on Chicago Sun-Times](https://chicago.suntimes.com/money/2026/04/29/illinois-class-action-lawsuit-costco-customers-retailers-tariff-refund)

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