If your IEEPA entries have already liquidated, the Post-Summary Correction window is closed. Your next best path — and in many cases your only administrative path — is a formal protest under 19 U.S.C. Section 1514. This is the mechanism Congress created for importers to challenge CBP’s duty determinations, and right now it’s the most important tool in the IEEPA recovery toolkit for anyone with liquidated entries.
A protest isn’t a request. It’s a legal challenge. You’re telling CBP: “You finalized this entry with duties that were based on an unconstitutional tariff, and I want the entry reliquidated without those duties.” CBP is then required by law to review the protest and issue a decision. If they agree (or if the CIT’s March 4 order compels them to agree), they reliquidate the entry and issue your refund plus interest.
The critical constraint is time. You have exactly 180 days from the date of liquidation to file a protest on each entry. Miss that window, and the entry becomes finally liquidated — meaning your only remaining option is CIT litigation, which is slower, more expensive, and requires a trade attorney. For a detailed explanation of the deadline mechanics, see our 180-day protest window guide.
Let’s walk through the entire protest process, from legal basis to filing to tracking.
The Legal Basis for Your Protest
Your protest rests on a simple foundation: the Supreme Court’s 6-3 ruling in Learning Resources, Inc. v. Trump (February 20, 2026) held that IEEPA does not delegate tariff authority to the President. Every duty collected under HTS headings 9903.01 and 9903.02 was collected without legal authority. The full ruling analysis explains the constitutional reasoning.
Under 19 U.S.C. Section 1514(a), an importer may protest “decisions of the Customs Service” relating to, among other things, “the liquidation or reliquidation of an entry.” Since the liquidation of your entry included IEEPA duties that have been ruled unconstitutional, you have a clear legal basis to protest the duty determination and request reliquidation without the IEEPA component.
This isn’t a close call. Unlike many customs protests where the legal argument is debatable, the IEEPA protest is backed by a Supreme Court ruling. CBP knows these duties were unlawful. The protest is the administrative mechanism that forces CBP to act on that knowledge for your specific entries.
Who Can File a Protest?
Under 19 U.S.C. Section 1514, the following parties have standing to file a protest:
- The importer of record. This is the entity listed as the IOR on the entry summary (CBP Form 7501, Block 22). In most cases, this is you.
- The consignee. If the consignee is different from the IOR, the consignee may also file. However, any refund still goes to the IOR.
- A surety. If a surety bond was used for the entry, the surety has standing to protest.
- An authorized agent. Your customs broker, acting under a valid Power of Attorney, can file the protest on your behalf.
In practice, most IEEPA protests are filed by the customs broker on behalf of the importer of record. If you’ve changed brokers since the original entry was filed, your new broker can still file — but they’ll need a current POA and access to the original entry data.
Which Entries Qualify for Protest?
A protest is available for entries that meet two conditions:
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The entry has been liquidated. CBP has finalized the duty determination. If the entry is still unliquidated, use PSC instead — it’s faster.
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The 180-day protest window is still open. The window starts on the date of liquidation, not the date of the Supreme Court ruling, not the date you learned about the refund opportunity.
To determine which of your entries qualify, pull an ES-003 report from the ACE portal. For each entry with IEEPA duty codes (9903.01 and 9903.02), check:
- Liquidation date: When did CBP finalize this entry?
- Days since liquidation: Is it within 180 days of today?
- IEEPA duty amount: How much was assessed under IEEPA codes?
| Liquidation Date | 180-Day Deadline | Status (as of April 2026) |
|---|---|---|
| Oct 2025 | Apr 2026 | Approaching deadline — file now |
| Nov 2025 | May 2026 | Urgent — file within weeks |
| Dec 2025 | Jun 2026 | Active window — file soon |
| Jan 2026 | Jul 2026 | Open — begin preparation |
| Feb 2026 | Aug 2026 | Open — time available |
| Mar 2026 | Sep 2026 | Open — time available |
Entries that liquidated before approximately October 2025 may already be past the 180-day window. For those entries, see the CIT litigation guide.
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Required Information for Your Protest
CBP protests are filed electronically through the ACE system using CBP Form 19 (Protest). Here are the required fields and what goes in each:
Entry Information
- Entry number: The unique identifier for each affected entry. File a separate protest for each entry, or batch multiple entries into a single protest if they share the same port, IOR, and legal basis.
- Entry date: The date the entry was originally filed.
- Port code: The CBP port where the entry was filed.
- Liquidation date: The date CBP finalized the duty determination.
Importer Information
- Importer of record number: Your CBP-assigned importer number (typically your EIN).
- Importer name and address: Must match CBP’s records.
- Filer code: Your customs broker’s filer code if the broker is filing on your behalf.
Protest Details
- Nature of protest: Select the category that corresponds to duty assessment/liquidation.
- Protested decision: The specific CBP decision you’re challenging — in this case, the liquidation of the entry with IEEPA duties included.
- Legal authority cited: 19 U.S.C. Section 1514(a)(2) (protesting liquidation). Reference the Supreme Court ruling in Learning Resources, Inc. v. Trump (February 20, 2026) as the basis for the challenge.
- Statement of facts: A clear narrative explaining that the entry included duties assessed under HTS headings 9903.01 and/or 9903.02, that these duties were assessed under IEEPA authority, and that the Supreme Court has ruled IEEPA tariffs unconstitutional.
- Relief requested: Reliquidation of the entry without IEEPA duties, and refund of the IEEPA duty amount plus statutory interest under 19 U.S.C. Section 1505(c).
Calculating Your Claim Amount
For each protested entry, you need to calculate the exact amount of IEEPA duties paid. This is the difference between:
- Total duties paid on the entry (as liquidated), and
- Duties that would have been owed without the IEEPA component
Your ES-003 report should show the duty breakdown by HTS line. Sum the duty amounts for all lines under headings 9903.01 and 9903.02 — that’s your IEEPA claim amount for that entry.
Example: An entry with $45,000 total duties, of which $32,000 was assessed under HTS 9903.01.25 (IEEPA tariff on Chinese goods at 25%). Your protest amount for this entry is $32,000, plus interest. The remaining $13,000 in regular duties is not part of the protest.
For help determining your exact claim amounts across all entries, the calculate your refund amount guide walks through the math, or you can request an Impact Assessment that calculates everything at the entry and line-item level.
Where and How to File
Electronic Filing Through ACE
The standard method is electronic filing through CBP’s ACE portal. Your customs broker logs into ACE, navigates to the protest filing module, enters the required data, and submits. ACE generates a confirmation number and timestamp.
Paper Filing (Backup Option)
If ACE filing isn’t available for some reason (system issues, broker access problems), a paper protest can be filed directly with the CBP port where the entry was originally processed. Mail or deliver CBP Form 19 to the port director. However, electronic filing is strongly preferred because it creates a clear timestamp and paper trail.
Port of Filing
File the protest at the same port where the original entry was processed. If you imported through multiple ports, you’ll need to file protests at each port for the entries processed there. Your broker can handle this — most brokers have filing capabilities at all ports.
Filing Confirmation
After electronic submission, you’ll receive a protest number from ACE. Save this. It’s your tracking number for the life of the protest. You can monitor the protest status through ACE using this number.
What Happens After You File
CBP Review
CBP has up to two years to review and decide on a protest under normal procedures. During this review period, CBP will either:
- Approve the protest and reliquidate the entry without IEEPA duties, issuing a refund plus interest.
- Deny the protest with a written explanation.
- Take no action within the standard processing timeline.
Given the CIT’s March 4 order directing CBP to process IEEPA refunds, mass approval of IEEPA protests is the expected outcome. But “expected” doesn’t mean “immediate.” CBP is processing millions of entries, and the administrative machinery takes time.
Accelerated Disposition
If you don’t want to wait up to two years, you can request accelerated disposition under 19 U.S.C. Section 1515(b). This forces CBP to act: if CBP doesn’t respond within 30 days of the accelerated disposition request, the protest is deemed denied. A deemed denial gives you the right to escalate to the CIT.
When to use accelerated disposition: If you need to move your claim to CIT litigation for strategic reasons, or if CBP is taking an unreasonably long time and you want to force a decision. For most importers, the standard timeline is fine — especially since the CIT order is pushing CBP to process IEEPA claims as a priority.
If Your Protest Is Denied
If CBP denies your protest (explicitly or through deemed denial after accelerated disposition), you have 180 days from the denial to file a summons with the Court of International Trade under 28 U.S.C. Section 1581(a). This is a different 180-day window — it starts at denial, not liquidation. CIT litigation requires a trade attorney, but given the strength of the IEEPA legal argument, denial of a well-filed protest would be unusual.
Common Rejection Reasons and How to Avoid Them
CBP may reject a protest filing (as opposed to denying the protest on its merits) for procedural reasons. Rejection means the protest was never accepted for review — it’s as if it was never filed. Here are the most common reasons:
Filing Outside the 180-Day Window
If the protest is filed even one day after the 180-day deadline, it will be rejected. CBP’s system validates the filing date against the liquidation date automatically. There are no extensions and no exceptions. This is why tracking your liquidation dates is critical. The cost of waiting explains what happens when deadlines are missed.
Incorrect Entry Information
If the entry number, port code, or liquidation date on the protest doesn’t match CBP’s records, the protest may be rejected. Double-check all entry data against your ES-003 report before filing.
Incomplete Legal Basis
A protest that says “I want a refund” without citing the legal authority and factual basis can be rejected as insufficient. Your protest should specifically reference: 19 U.S.C. Section 1514, the Supreme Court ruling, the specific HTS codes, and the specific duty amounts.
Invalid Filer
If the person or entity filing the protest doesn’t have standing (not the IOR, consignee, surety, or authorized agent), the protest will be rejected. Make sure your broker’s POA is current and covers protest filing.
Duplicate Protests
Filing multiple protests on the same entry can cause processing issues. If you need to amend a protest, file a supplemental submission rather than a new protest.
Protective Protests: File Even If You’re Not Sure
One of the most important strategies in the current environment is the protective protest. This is a protest filed on every eligible liquidated entry, even if you believe CBP will eventually process refunds automatically through CAPE or some other mechanism.
Why? Because the protest preserves your rights under every possible scenario:
- If CBP processes refunds through CAPE: Your protest is superseded by the refund and is withdrawn or mooted. No harm done.
- If CAPE is delayed or limited: Your protest keeps the entry alive and non-final, ensuring it’s covered by the CIT’s universal refund order.
- If the government appeals the Supreme Court ruling: Your protest preserves your claim during any appellate process. (Note: as of April 2026, no appeal has been filed, and the 90-day petition window has expired.)
- If CBP takes a narrow interpretation of the refund order: Your individual protest creates a specific legal record that can be escalated to CIT if needed.
The 180-day protest window guide explains this strategy in detail. The short version: there is no downside to filing a protective protest. The filing cost is minimal (your broker’s time), and the protection is significant.
Batch Filing: Managing Multiple Entries
Most importers don’t have one affected entry — they have dozens, hundreds, or thousands. Here’s how to manage protest filings at scale:
Grouping Strategy
CBP allows multiple entries to be included in a single protest if they share:
- The same port of entry
- The same importer of record
- The same legal basis for the protest
For IEEPA protests, the legal basis is the same for all entries (unconstitutional tariff). So you can group all entries from the same port into a single protest filing, significantly reducing the administrative burden.
Prioritization
If you can’t file everything at once, prioritize by deadline proximity:
- Entries with less than 30 days remaining in the 180-day window — file immediately
- Entries with 30-90 days remaining — file within the next two weeks
- Entries with 90+ days remaining — file as part of your systematic process
Data Validation
Before batch filing, validate every entry’s data against the ACE records. A single error in a batch protest can cause the entire filing to be rejected. The Impact Assessment process validates entry data at the line-item level, which prevents filing errors.
Tracking Your Protest Status
After filing, you can monitor protest status through the ACE portal. Key statuses to watch for:
- Filed/Received: CBP has accepted the protest for review.
- Under Review: CBP is evaluating the protest.
- Approved: CBP has agreed to reliquidate the entry. Refund processing begins.
- Denied: CBP has denied the protest. You have 180 days to escalate to CIT.
- Withdrawn: The protest has been withdrawn (typically because the refund was processed through another mechanism).
Check status monthly. If a protest shows “Filed/Received” for more than six months with no movement, consider requesting accelerated disposition.
Coordinating Protests With Other Recovery Paths
Most importers will use protests alongside other recovery mechanisms. Here’s how they fit together:
PSC + Protest: File PSCs on unliquidated entries and protests on liquidated entries. This is the most common combination and the one most importers should use. See our PSC guide for the unliquidated entry process.
Protest + CAPE: When the CAPE system launches, it may provide a streamlined path for some or all of your protested entries. File protests now to preserve your rights, then evaluate whether CAPE offers a faster resolution path. The protest can be withdrawn if CAPE delivers.
Protest + Immediate Capital: If the 18-36 month protest processing timeline doesn’t work for your business, you can file protests to preserve your rights while simultaneously exploring claim assignment for immediate payment. The government filing vs. immediate capital analysis helps you evaluate this option.
Protest + CIT: For entries where the protest is denied, or where you want to accelerate resolution through the court system, the protest creates the necessary record for CIT jurisdiction under 28 U.S.C. Section 1581(a). You can’t skip the protest step — CIT requires exhaustion of administrative remedies for most claims.
The four recovery paths guide provides the complete framework for choosing and combining these options.
The Bottom Line
Filing a protest isn’t complicated, but it is time-sensitive. Every liquidated IEEPA entry has its own 180-day clock, and once that clock expires, your administrative options disappear. The legal argument is as strong as it gets — a Supreme Court ruling striking down the tariffs. The filing process is standard customs practice. And the protective value of a protest is enormous relative to its minimal cost.
If you have liquidated IEEPA entries, file protests now. Don’t wait for CAPE. Don’t wait for further guidance from CBP. Don’t wait to see what other importers do. File, protect your rights, and then decide at your leisure which recovery path delivers the best outcome for each entry.