How to Dispute US Customs Fees: CBP Protests, Appeals, and Tariff Refunds in 2026

US importers, businesses, and individuals who face unexpected customs duties, fees, or tariffs can challenge these charges through formal protests or appeals with U.S. Customs and Border Protection (CBP). The main process requires filing a protest against liquidation decisions under 19 CFR Part 174, either on CBP Form 19 or in a letter clearly labeled "Protest" with the required details. Protests must go in within 90 days for entries made before December 18, 2004, or 180 days for those on or after that date, counted from the liquidation date.

This method lets you recover overpaid fees or fix errors without needing a lawyer right away. For tariff refunds linked to IEEPA or earlier tariffs, importers submit a formal protest through the ACE Protest module after liquidation. In 2026, CBP struggles with processing these refunds--including ones from reciprocal tariffs--due to limits in its technology, procedures, and staffing, as CNBC reports.

What US Customs Decisions Can You Protest?

Under 19 U.S.C. 1514, protests cover specific CBP decisions, including the legality of all orders and findings that shape them, as spelled out in 19 CFR Part 174. You can protest actions like liquidations of entries, exclusions of merchandise from entry, reliquidations, and determinations on duties, fees, or tariffs assessed at liquidation.

These steps apply only to US CBP actions. Disputes involving non-US customs or carrier issues, such as those with international couriers, don't qualify. Stick to documented CBP decisions tied to entry liquidation for a valid protest. By focusing protests on these categories under 19 U.S.C. 1514, importers sidestep invalid filings and target eligible issues like wrong duty classifications or overassessments set at liquidation.

Step-by-Step Guide to Filing a CBP Protest

A protest challenges fees set after CBP liquidates an entry, which is the agency's final call on duties owed. Here's how to file, drawing from procedures in 19 CFR Part 174:

1. Identify the liquidation date: Check your entry summary or CBP correspondence for this date. It triggers the deadline--90 days for pre-December 18, 2004 entries or 180 days for later ones, as 19 CFR requires. Miss it, and the protest is barred.

2. Prepare the protest document: Use CBP Form 19 or a letter marked "Protest" at the top. Include the entry number, your name and address as protestant, a clear statement of objections, reasons for the protest, and evidence showing why the decision was wrong. It must meet Form 19 standards to count.

3. File via the ACE Protest module: Send it electronically through the Automated Commercial Environment (ACE) portal for most cases. For tariff refunds like those on IEEPA tariffs, use this post-liquidation, as Gaia Dynamics details.

4. Pay any required deposit: If challenging higher duties, deposit the disputed amount unless rules allow a waiver.

5. Track and follow up: CBP reviews complete protests within 30 days, either denying them, allowing them, or asking for more info. In 2026, refund processing--including for reciprocal tariffs--hits snags from CBP's resource shortages.

Importers generally get 180 days after liquidation to pursue tariff refunds this way, according to sources like Avalara. Including all required elements bolsters your protest and aids potential refunds on contested tariffs.

CBP Appeals for Rulings and Determinations

Appeals handle rulings and certain determinations apart from liquidation protests. File them within 30 calendar days of the ruling's issuance or 45 days after notification takes effect, following CBP procedures in Chapter 12 - Appeal Procedures. Submit to the authority that made or carried out the contested decision, like port directors for particular rulings.

These deadlines are tighter than protest timelines and target pre-liquidation rulings rather than finalized entry calls. Appeals deal with advance determinations, such as classification rulings, for faster fixes before duties lock in--but they demand quick action to hit the 30/45-day limits.

Protests vs. Appeals: Which Path Fits Your Customs Dispute?

The choice between protests and appeals hinges on the decision type, timing, and reach. Protests work for post-liquidation fights over duties and fees, while appeals suit rulings and determinations.

Turn to protests for tariff or fee issues after liquidation; use appeals for advance rulings where timing is key. This split avoids errors: post-liquidation matters follow 19 CFR Part 174 for protests, while pre-liquidation rulings stick to Chapter 12 schedules.

FAQ

How many days do I have to file a protest against a CBP liquidation decision?
Within 90 days for entries before December 18, 2004, or 180 days for entries on or after that date, from the liquidation date.

What is the difference between a CBP protest and an appeal?
Protests challenge liquidation decisions on duties and fees within 90/180 days using Form 19 via ACE. Appeals contest rulings within 30/45 days, filed with the issuing authority.

Can I get a tariff refund through a protest for IEEPA or Trump-era tariffs?
Yes, file a formal protest using CBP Form 19 via the ACE module after liquidation, typically within 180 days.

Where do I file a CBP protest or appeal?
Protests go through the ACE Protest module or to the port director. Appeals file with the CBP authority that issued the ruling or determination.

What form is required for protesting customs fees?
CBP Form 19 or a letter clearly labeled "Protest" with equivalent content.

Are there challenges in getting large-scale tariff refunds from CBP in 2026?
CBP has reported difficulties complying with refund orders for reciprocal tariffs due to technology, processes, and manpower limitations.

To proceed, gather your entry documents and liquidation notice, then prepare your Form 19 or appeal submission promptly to meet deadlines. Consult CBP's ACE portal for the latest filing instructions.