Section 301 Product Exclusions That Expired: Can You Still Recover Those Duties?

Between 2018 and 2022, U.S. Trade Representative (USTR) granted hundreds of product-specific exclusions from Section 301 tariffs on Chinese goods. Many of those exclusions carried narrow validity windows, sometimes just 12 months, and a significant number lapsed while importers were still actively shipping the covered products. If your company held an exclusion that expired and you kept importing, you paid 25 percent or more in duties that you may have believed were protected. Now, following the Supreme Court's February 2026 ruling that IEEPA tariffs were unconstitutionally imposed, there is a second look worth taking at those payments.

A Quick Refresher on Section 301 Product Exclusions

Section 301 tariffs on Chinese imports were structured in four tranches, commonly called Lists 1 through 4, rolled out between July 2018 and September 2019. To soften the economic blow on specific industries and supply chains, USTR opened exclusion request processes for each list. Approved exclusions allowed an importer to enter goods under a covered HTS code without paying the additional Section 301 duty, provided the entry date fell within the exclusion's validity period.

The problem was built into the program from the start. USTR exclusions were not permanent. Most ran for one year from the date of publication in the Federal Register, and the renewal process was inconsistent. Some exclusions were extended once or twice. Others were allowed to lapse without renewal even though the underlying tariff remained in place. Importers who had built sourcing strategies around an exclusion often found themselves paying full Section 301 rates without warning.

What Happens When an Exclusion Expires Mid-Shipment Cycle

In practical terms, an expired exclusion means that any entry filed after the exclusion's end date is assessed at the full Section 301 rate. If you had goods in transit when the exclusion lapsed, the entry date, not the purchase date or ship date, controls whether the duty applies. Many importers discovered they owed substantial additional duties only when Customs and Border Protection (CBP) issued a bill following a post-entry review.

Some companies attempted to self-correct through Post-Summary Corrections while others simply absorbed the cost and moved on. A portion of those payments may now be eligible for recovery through a completely separate legal mechanism that did not exist when the exclusions were active.

How the IEEPA Ruling Creates a New Recovery Path

The Supreme Court's February 2026 decision found that the executive branch lacked authority under the International Emergency Economic Powers Act to impose the tariff layers that compounded on top of existing Section 301 duties. This ruling does not retroactively restore expired exclusions or modify Section 301 authority, which rests on a different statutory foundation. However, it does make any IEEPA tariff increment paid during the covered period potentially refundable, regardless of whether a Section 301 exclusion was in place or not.

This distinction matters because many importers who held exclusions were still paying IEEPA-based tariff layers that were stacked on their entries. The exclusion may have removed the Section 301 component, but additional duties imposed through IEEPA executive orders were often assessed separately. Those IEEPA amounts are what the current refund process addresses.

Conversely, importers who lost their Section 301 exclusion and resumed paying the full 25 percent Section 301 rate were simultaneously paying any IEEPA increments added to those entries. The IEEPA portion of those combined payments is the target of refund claims filed through CBP's CAPE portal.

Identifying Which Entries Contain Refundable IEEPA Amounts

The starting point for any recovery analysis is your ACE entry summary data. Each entry summary records the HTS classification, the origin of the goods, the tariff programs applied, and the duty amounts collected. If you imported from China during the IEEPA tariff period and your entries reflect duty-paid amounts that include IEEPA-based increments, those entries are candidates for a refund claim.

For importers whose Section 301 exclusions expired, the entry data often shows a clear inflection point: entries before the exclusion lapse reflect a lower effective duty rate, and entries afterward reflect the higher combined rate. That pattern can help identify both the volume of affected shipments and the approximate refund value.

The analysis requires pulling liquidated entry summaries and matching them against the specific executive orders that imposed IEEPA tariff layers on Chinese goods. This is detailed work, but it is also the same work that produces a refund claim ready to file through the CAPE portal.

The Filing Deadlines You Cannot Afford to Miss

Refund claims related to fentanyl-related IEEPA tariffs on China, Mexico, and Canada must be filed by February 4, 2027. Claims related to the broader reciprocal tariff orders covering other countries carry a deadline of April 5, 2027. For China-specific IEEPA layers on top of Section 301 duties, the February 4, 2027 deadline is the operative date to watch.

These are hard deadlines set by statute. There is no current provision for late filing, and CBP is not expected to extend them. Given that the CAPE portal process involves gathering entry summaries, validating eligibility, preparing the claim package, and submitting through the portal, waiting until late 2026 to start creates real execution risk.

CBP data shows that roughly 93.5 percent of eligible importers have not yet filed claims. The $121.75 billion in claims already processed represents only the importers who moved early. The rest are leaving money on the table as the deadline approaches.

What Statutory Interest Adds to the Recovery Value

Approved refund claims do not simply return the original duty amount. CBP adds statutory interest from the date the duty was originally collected. For entries going back to 2020 or earlier, that interest accumulates meaningfully. An importer who paid duties four or five years ago and recovers them now receives more than the face value of the original overpayment. The interest accrues at rates published by the IRS, and CBP pays it automatically as part of the refund disbursement.

Refunds are issued via ACH directly to the importer's enrolled bank account, typically within 60 to 90 days of an approved claim. For importers who are still managing cash flow impacts from the tariff period, that timeline and the interest component make filing promptly worthwhile.

Working With a Specialist to Navigate Both Section 301 and IEEPA Complexity

Importers who held Section 301 exclusions are often surprised to learn that their entry history may still contain recoverable IEEPA amounts. The overlap between exclusion periods, IEEPA tariff layers, and liquidation dates creates a fact pattern that benefits from specialist analysis rather than a simple self-assessment.

A tariff refund specialist with experience in both the CAPE portal filing process and Section 301 history can review your ACE data, identify entries that qualify, and build the documentation package CBP requires. Because the work is handled on a success-based fee structure, there is no upfront cost to engage. You pay only if a refund is recovered.

Check Your Eligibility Before the 2027 Window Closes

If your company imported goods from China between 2018 and the present, held Section 301 exclusions that expired, and continued paying duties after those exclusions lapsed, there is a meaningful chance that IEEPA tariff amounts are embedded in your entry history and eligible for refund today.

Tarisol connects U.S. importers with the Tariff Refund Agency, a licensed specialist that analyzes entry data, prepares CAPE portal filings, and pursues recoveries on a success-based basis with no upfront fees. The February 4, 2027 deadline for China-related IEEPA tariff claims is approaching faster than most importers realize. Use the link below to check your eligibility and find out what may be waiting in your entry history.