Every commercial shipment entering the United States must clear U.S. Customs and Border Protection. That means filing an entry, paying duties and fees, classifying goods under the Harmonized Tariff Schedule (HTS), and complying with the requirements of every government agency that has jurisdiction over your product — from FDA to CPSC to EPA.
A licensed customs broker handles all of this on your behalf. They are licensed by CBP, authorized to act as your agent, and legally empowered to sign customs documents, file entries, and interact with government agencies for you. The question is not really whether you need one — it is whether you can afford not to have one.
When a Customs Broker Is Legally Required
Under 19 CFR 141.4, any entry of merchandise imported into the United States must be filed by either the importer of record or a licensed customs broker. For practical purposes, there are several scenarios where using a broker is not just advisable but effectively mandatory.
Formal entry filings. Any shipment valued over $2,500 requires a formal customs entry. While you can technically file this yourself through the Automated Commercial Environment (ACE), the process demands expertise in tariff classification, customs valuation, and regulatory compliance that most businesses do not have in-house.
FDA-regulated goods. If you are importing food, pharmaceuticals, medical devices, or cosmetics, FDA requires prior notice filings, may require FSVP compliance, and enforces import alerts that can result in detention without physical examination. A broker who understands FDA's import process is essential.
Partner Government Agency (PGA) filings. Products regulated by agencies such as USDA, EPA, CPSC, FCC, or TTB require additional data elements in the customs entry. These PGA filings are integrated into the ACE system, and errors trigger holds, examinations, and penalties.
Antidumping and countervailing duty (AD/CVD) merchandise. If your product is subject to AD/CVD orders, the classification and duty calculation become significantly more complex. Cash deposits, liquidation reviews, and scope rulings all require specialized expertise.
By law, only a licensed customs broker or the importer of record can file a customs entry. No freight forwarder, logistics provider, or third-party agent can file on your behalf unless they hold a valid customs broker license.
When You Can Technically File Yourself
U.S. law does allow importers to file their own entries. You can apply for ACE access, obtain an importer of record number, purchase a customs bond, and file entries directly with CBP. There is no legal requirement to hire a broker.
But here is what that actually means in practice.
You take on full legal liability for every aspect of the filing. Classification accuracy. Valuation methodology. Country of origin determination. Free trade agreement eligibility. Compliance with every PGA requirement. Accurate reporting of every data element in the entry summary.
If you get any of it wrong, the consequences are real. 42% of CBP penalties come from misclassification errors. A single misclassified HTS code can result in penalties of 20% to 40% of the dutiable value of the goods. In cases of gross negligence, penalties can reach four times the loss of revenue.
Self-filing also means you are your own point of contact with CBP. When your shipment is held for examination, when you receive a Request for Information (CF-28), when CBP issues a Notice of Action (CF-29), when you are selected for a Focused Assessment audit — you are handling all of it yourself, against an agency that processes over 37 million entries per year and collected $264 billion in duties, taxes, and fees in fiscal year 2025.
For most commercial importers, self-filing is a theoretical option, not a practical one.
When a Customs Broker Is Critical
There are situations where having a customs broker is not just helpful but critical to protecting your business.
FDA-Regulated Food Imports
The Foreign Supplier Verification Program (FSVP) requires every U.S. food importer to verify that their foreign suppliers meet U.S. safety standards. FDA has conducted over 2,100 FSVP inspections since 2019, and nearly 64% resulted in compliance failures. A customs broker who specializes in food imports can identify your FSVP obligations, ensure prior notice is filed correctly, and monitor import alerts that affect your products.
USMCA Preferential Treatment Claims
If you are importing goods from Mexico or Canada and claiming preferential duty treatment under USMCA, you need proper rules of origin documentation. CBP has increased its verification of USMCA claims, and an improperly supported claim can result in loss of preferential treatment, retroactive duty assessments, and penalties. A broker experienced in Mexico-U.S. trade ensures your certificates of origin and supplier documentation meet CBP's requirements.
First-Time Importers
If you have never imported before, the setup process alone involves obtaining an importer of record number, purchasing a continuous customs bond, establishing ACE portal access, identifying all applicable regulations for your product, and understanding your duty obligations. A broker handles all of this and prevents the costly mistakes that first-time importers routinely make.
High-Tariff Goods
When duty rates are high, correct HTS classification becomes a significant financial decision. A single subheading difference can mean a swing of 5% to 25% in duty rates. For an importer moving $10 million in goods annually, that difference can represent hundreds of thousands of dollars. A broker who understands the nuances of tariff classification can legally optimize your duty exposure through correct classification — not avoidance.
Audit Exposure
CBP collected $264 billion in duties in 2025, and audit activity is surging. Focused Assessment audits can review years of import history and result in massive retroactive assessments. If your filings have been inconsistent, your classifications questionable, or your valuation methodology undocumented, an audit can be devastating. A customs broker maintains the documentation and filing accuracy that protects you when CBP comes looking.
When You Might Not Need One
There are limited situations where a customs broker may not be necessary.
Personal imports under $2,500. If you are importing goods for personal use with a declared value under $2,500, CBP allows informal entry. You do not need a broker for these shipments, and the paperwork is minimal.
Informal entries for non-commercial goods. Certain categories of goods — gifts, personal effects, household items for returning residents — qualify for informal entry regardless of value. The requirements are straightforward, and most individuals can handle them without professional assistance.
Mail and courier shipments under de minimis thresholds. Shipments valued under $800 generally qualify for de minimis entry and clear customs automatically through the carrier. No entry filing is required.
However, even in these scenarios, a broker can help you avoid mistakes that trigger holds or seizures. And if you are making any of these shipments on a commercial basis — buying goods abroad for resale, for example — you likely need a formal entry regardless of value, which means you need a broker.
What to Look For in a Customs Broker
If you have determined that you need a customs broker — and if you are importing commercially, you do — here is what separates a good broker from a liability.
Licensed by CBP. This is non-negotiable. Your broker must hold a valid individual or organizational customs broker license issued by U.S. Customs and Border Protection. There are approximately 14,454 licensed customs brokers in the United States. Verify their license before signing anything.
Industry specialization. A broker who handles everything handles nothing exceptionally. Look for a broker with demonstrated expertise in your specific product category — whether that is food and beverage, automotive parts, textiles, electronics, or chemicals. They should understand the specific PGA requirements, classification challenges, and compliance risks for your industry.
Transparent pricing. The brokerage industry is notorious for hidden fees — exam charges, PGA filing surcharges, after-hours fees, amendment fees, minimum volume requirements. Ask for a clear fee schedule and understand exactly what you are paying for each filing.
Technology and portal access. You should have real-time visibility into your shipments, filings, and duty payments. A broker who operates on fax machines and spreadsheets cannot give you the data you need to make business decisions.
Response time. When your container is sitting at the port and CBP has a question, you need a broker who answers the phone. Ask about their response time guarantees and after-hours availability.
Audit support. Your broker should be able to defend the classifications and valuations they have used on your filings. If CBP audits your import history, your broker should be your first line of defense — not a liability.
How Much Does a Customs Broker Cost?
Most customs brokers charge between $150 and $250 per entry for standard filings, with additional surcharges for PGA filings, examinations, in-bond movements, and other services. Some brokers also require minimum monthly volumes or charge retainer fees.
Greenwich Mercantile charges a flat $100 per filing — any product, any origin country, any government agency. No surcharges. No minimums. No hidden fees.
For a detailed breakdown of customs brokerage pricing models, see our full guide on how much a customs broker costs.