During the Supreme Court’s oral argument in Learning Resources v. Trump last month, Justice Barrett asked counsel for the private plaintiffs about the tariff refund process if his clients prevail. After some back and forth, she summarized: “So a mess?”
Although the Court has not yet announced when an opinion may be released, entries subject to President Trump’s first tariffs—the “fentanyl” tariffs on Chinese-origin goods—will soon begin to liquidate. Under customs law, liquidation is the point at which duties on an entry become final.
If an entry liquidates, a refund may be foreclosed unless the importer takes action. Thus, importers should understand the standard liquidation cycle and the avenues for pursuing refunds if the Court holds the tariffs are unlawful and refunds are available.
How liquidation works
Most entries liquidate by operation of law approximately 314 days after the entry date. Absent a qualifying exception, liquidation cuts off judicial review and eliminates the possibility of a refund.
The key statutory exception is a timely filed protest. Protests—essentially administrative appeals to U.S. Customs and Border Protection (CBP)—must be filed within 180 days of liquidation to be timely. If CBP denies the protest, the importer can then sue in the Court of International Trade to challenge that denial.
Liquidation timing vis-à-vis the tariffs
The President has issued four types of tariffs under the International Emergency Economic Powers Act (IEEPA):
- The “fentanyl” tariffs on Canadian-, Chinese-, and Mexican-origin goods. The “fentanyl” tariffs went into effect on February 4 for China and March 4 for Canada and Mexico.
- The reciprocal tariffs, which went into effect on April 5.
- The “free speech” tariffs on Brazilian-origin goods, which went into effect on August 6.
- The secondary tariffs on Indian-origin goods, which went into effect on August 27.
Entries subject to the “fentanyl” tariffs on Chinese‑origin goods are expected to begin liquidating on or after December 15, followed by Canadian and Mexican “fentanyl” entries on January 12, 2026. Entries subject to the reciprocal tariffs are expected to begin liquidating on February 13. Entries subject to Brazil “free speech” tariffs will liquidate on June 16, and entries subject to the India secondary tariffs will liquidate on July 7.
These dates frame the final windows to deploy administrative or judicial tools to preserve refund eligibility for each program.
Learning Resources does not involve a challenge to the Section 232 tariffs on certain aluminum and steel articles and derivative products; automobiles; automobile parts; copper products; lumber, timber, and derivative products; and medium- and heavy-duty vehicles, buses, and parts. Therefore, those tariffs will not be eligible for refunds, regardless of how the Court rules.
Potential refund strategies
Importers should be considering the following potential refund strategies in advance of the Court’s ruling in Learning Resources:
- Post Summary Corrections (PSCs): CBP may direct importers to submit PSCs on unliquidated entries, which would then trigger the refund process once accepted. This is consistent with CBP’s prior practice for retroactive tariff changes. PSCs generally can be filed within 300 days of entry.
- Protests: Protests are entry‑specific, administrative appeals filed with CBP. CBP has up to two years to decide protests, so this pathway may be slower for refunds even if the IEEPA tariffs are held to be unlawful. As noted above, protests must be filed within 180 days of liquidation.
- Lawsuit in the Court of International Trade (CIT): A lawsuit now in the CIT, coupled with a motion for a preliminary injunction directing CBP to suspend liquidation of the importer’s entries, can help provide short-term relief from the administrative burden of tracking liquidation dates and filing protests for every entry since February. If the Court holds the tariffs are unlawful, a lawsuit may also yield faster and more centralized relief for the importer than CBP’s administrative processes. For any entries that liquidate before a preliminary injunction is in place, importers should still file protests to preserve their refund rights.
If you would like to discuss or pursue any of these strategies, please do not hesitate to contact our International Trade and National Security attorneys.