Customs Broker

A customs broker is a licensed professional authorized to conduct customs business on behalf of importers and exporters with U.S. Customs and Border Protection (CBP). Customs brokers prepare and submit entry documents, classify goods under the Harmonized Tariff Schedule, calculate duties and fees, and ensure shipments comply with all applicable regulations before they are released from the port. In the United States, individuals must pass a rigorous federal exam and obtain a license from CBP to practice as a customs broker. Brokerage firms also hold organizational licenses and employ multiple licensed brokers across their offices.

What a Customs Broker Does

The core function is filing the customs entry. When a shipment arrives at a U.S. port, the customs broker reviews the commercial invoice, packing list, bill of lading, and any certificates or permits. They classify each product under the correct HTS (Harmonized Tariff Schedule) code, determine the applicable duty rate, calculate the duties owed, and submit the entry electronically through CBP’s ACE (Automated Commercial Environment) system. The broker also files the Importer Security Filing (ISF or “10+2”) at least 24 hours before the vessel departs the foreign port for ocean shipments.

Beyond entry filing, customs brokers handle a range of compliance and advisory functions. They advise importers on duty rates and potential trade program benefits (like USMCA preferential treatment or Generalized System of Preferences). They manage interactions with CBP when a shipment is flagged for examination, respond to requests for information (CBP Form 28), and represent the importer during post-entry audits or focused assessments. Brokers also file post-entry amendments when errors are discovered after the initial filing and process duty drawback claims for goods that are re-exported.

The Customs Broker Exam

The CBP customs broker license exam is administered twice per year, in April and October. It is an open-book, proctored exam lasting four and a half hours. Candidates must answer 80 multiple-choice questions covering tariff classification, customs valuation, entry procedures, bonding, penalties, free trade agreements, trade laws, and CBP regulations. The passing score is 75%. Pass rates historically range from 5% to 20% per sitting, making it one of the more challenging professional licensing exams in the United States. After passing the exam, candidates must complete a background check and submit a license application to CBP.

Choosing a Customs Broker

Not all customs brokers offer the same level of service or expertise. Large national firms like Flexport, C.H. Robinson, and UPS Supply Chain Solutions handle high volumes across all product categories and ports. Regional brokers may specialize in specific ports or product types. For Amazon sellers importing consumer goods from China, a broker experienced with e-commerce imports, Section 301 tariffs, and FBA compliance requirements is more valuable than a broker who primarily handles industrial or agricultural commodities.

Key factors in selecting a broker include: responsiveness (customs issues are time-sensitive, and delays cost money in demurrage and detention), accuracy (misclassification errors result in penalties and duty overpayments), transparency (clear fee schedules without hidden charges), and technology (online portals for tracking entries, document management, and duty payment visibility).

Brokerage fees vary. A standard ocean import entry filing typically costs $125 to $250 per entry, depending on the broker, the complexity of the shipment, and the port. ISF filing fees add $25 to $50 per filing. Additional charges apply for CBP exam coordination, bond renewals, entry amendments, and post-entry services. Some brokers offer bundled pricing for clients with consistent monthly volume.

The Broker-Importer Relationship

The customs broker acts as the importer’s agent, but the importer of record retains legal responsibility for the accuracy of all customs filings. If the broker files an incorrect classification and CBP assesses a penalty, the importer is liable. The broker may face separate disciplinary action from CBP for professional negligence, but the financial penalty falls on the importer. This shared-responsibility structure means importers should review their entries and maintain awareness of their duty rates and compliance obligations rather than delegating blindly.

Establishing a working relationship with a broker before the first shipment arrives is essential. The broker needs the importer’s power of attorney, customs bond information, EIN, and product details well in advance. First-time importers who contact a broker after their container is already on the water often face rushed filings and avoidable errors.