As a small business that’s importing goods into the U.S., where do customs brokerage services come into the picture?
Dealing with regulations and requirements of US Customs and Border Protection (CBP) is a big part of the equation for importers. The agency is tasked with overseeing trillions of dollars of imports annually, screening them for safety and security, and ensuring everything is properly taxed.
So then, how do you approach this complex task? Larger companies typically have their own in-house departments to handle customs brokerage services, representing them in their dealings with CBP. But what about the thousands of small business importers? How do you ensure that your goods arrive here unimpeded, with as little delay as possible through the port, paying only what is due to Customs?
You can certainly go through the time and trouble of learning all about CBP regulations, and even have someone in the company study and train to become a licensed customs broker. But you simply cannot replace the value of an experienced customs broker who knows all the ins and outs, keeps on top of shifting regulations and tariffs, and knows how to respond when issues arise and delays threaten.
A customs broker is a licensed professional who acts on behalf of importers when dealing with customs authorities. Although the importer is ultimately responsible for complying with customs regulations, including providing accurate information, filing the required documentation, and paying applicable duties, taxes, and fees, the broker manages these processes.
Drawing on specialized knowledge of import regulations and customs procedures, a licensed broker helps ensure shipments are properly classified, required documentation is complete and accurate, and filings are submitted to CBP on time. By identifying potential compliance issues before they become costly problems, a customs broker helps keep freight moving while reducing the risk of delays, penalties, and unexpected expenses.
The importer first assigns a power of attorney that authorizes the broker to act for them in future CBP transactions. They can also help the importer register with CBP as an Importer of Record (IOR).
Then, when you bring a shipment into the US, the provider of customs brokerage services does the following:
Helps you choose the correct HS code: Each imported product is assigned a 10-digit Harmonized Tariff Schedule (HS) code, which allows CBP to determine what duties apply. Selecting the correct HS code is important. Getting it wrong can trigger an inspection, an added expense, plus a delay. An experienced customs broker understands how to make the right choice.
Completes and transmits the Import Security Filing (ISF): This electronic document contains information about the shipment, including the first six digits of the HS code. An ISF filing lets customs agents know what products to expect, where they’re coming from, and the scheduled arrival date. The ISF must be filed at least 24 hours before the shipment leaves the port of origin. If it’s not, an ISF late filing fee of $5,000 is levied.
Obtains an ISF bond: The customs broker purchases this from a surety company as a guarantee that CBP will receive the ISF filing. It contains the required shipment data.
Obtains a customs clearance bond: purchased from a surety company, a customs bond guarantees CBP will receive all the required duties and fees.
Transmits the customs clearance documentation: Typically filed several days before the vessel arrives at the destination port, the customs entry contains more detailed information than the ISF. This includes the full 10-digit HS classification code(s), commercial invoice details, shipment value, country of origin, and other data required by CBP. For products regulated by agencies such as the FDA, USDA or EPA, the filing also includes agency-specific information required to obtain release of the shipment.
Deals with government agencies and customs authorities: Brokers act as intermediaries between importers and customs agencies. This includes the time-consuming task of coordinating with CBP, other government agencies and supply chain partners to resolve issues, provide documentation, and ensure trade compliance.
Arranges for necessary payments: These include the Merchandise Processing Fee (MPF), and the Harbor Maintenance Fee (HMF) for entries by ocean, plus any duties and agency fees. Depending on the arrangements, the customs broker might pay this themselves and then include the total in their invoice, or they might initiate an ACH transaction directly to CBP from the importer’s bank account.
Maintains records and documents: Things like invoices, bills of lading (BOL), and customs declarations need to be accurate and organized to quickly respond to questions from CBP.
If a company wants to file their own customs entries, they don't need to be licensed; they can file as an importer directly with CBP. But without the aid of somebody who knows customs regulations like the back of their hand, will you as the importer do it correctly? Or will it cost more in the long run than hiring a broker?
Experience matters: it means knowing what to do and who to contact. If CBP decides to conduct a customs exam for any reason, an experienced broker knows how to check the status and resolve the issue efficiently.
“If a broker is involved with the import of hundreds or thousands of containers a year, chances are they're going to have experience with Customs inspections,” said Andrew Rozek, president of freight forwarder I.C.E. Transport. “Sure, Customs will talk to you as an importer directly. But it's a matter of asking the right questions, and knowing who to ask.”
Check out our Small Business Shipping Guide for tips on managing a range of international shipping issues.
Importing isn't always about moving freight from one point to another. Sometimes, the greatest value comes from knowing how to navigate the unexpected.
Rozek said a recent shipment involved a longtime customer importing partially assembled cars from a South African manufacturer. Three vehicle kits destined for two different importers were consolidated into one 40-foot container. Shortly before the container was to be released, the shipment was placed on a USDA documentation hold at the port of entry in Miami.
Although the required commercial invoices and bills of lading had already been submitted electronically, the hold remained in place. Because the container included freight for multiple importers, none of the cargo could be released until the issue was resolved.
As emails circulated among the parties involved, the container continued to sit at the port, putting everyone at risk of accumulating storage and detention charges.
Rather than waiting for the issue to resolve itself, Rozek contacted the USDA office in Miami to determine what the issue was. After confirming that the necessary documentation had been received, the USDA reviewed the file and removed the hold within minutes.
The experience illustrates an important reality of international shipping: resolving customs and regulatory issues often requires more than submitting the correct paperwork. It calls for an understanding of how agencies operate, knowing who to contact when a shipment stalls, and recognizing when a simple conversation can prevent days of costly delays.
"If nobody had picked up the phone and asked what the holdup was, that container would have continued sitting at the port," Rozek said. "Meanwhile, detention charges on the equipment and storage fees at the terminal would add up."
For importers, especially those shipping high-value or time-sensitive cargo, that kind of hands-on expertise can make the difference between a routine customs clearance and an expensive disruption. While documentation is essential, experience navigating the customs process — and responding quickly when unexpected issues arise — helps keep freight moving and prevents avoidable costs.
Two of the most overlooked aspects of importing are customs bonds and tariff classification. While both may seem like administrative details, mistakes in either area can delay cargo, increase costs, or tie up capital for months.
Every importer must have a customs bond in place before goods can be entered into the US. The bond serves as a financial guarantee that duties, taxes, and other obligations owed to CBP will be paid. The required bond amount is based on factors such as the value of the shipment, duties owed, and the products being imported. If the bond is insufficient, CBP can reject the entry until the issue is corrected, delaying the release of the cargo.
Tariff classification presents another potential pitfall. Selecting the correct Harmonized Tariff Schedule (HS) code determines not only the applicable duty rate, but also whether additional tariffs, trade remedies, or other import requirements apply. As tariff policies have evolved in recent years, particularly with the introduction of reciprocal tariffs and other trade measures, determining the correct combination of tariff provisions has become much more complex.
"CBP will never alert you if you pay them too much," said Rozek. "If you accidentally stack tariffs, they'll process the entry and collect the money. But if you are missing a tariff code on your entry, it will not go through until it's corrected."
That distinction can have real financial consequences. Importers who overpay duties because of an incorrect HS classification or unnecessary tariff code can usually recover the money by filing a Post Summary Correction, but refunds often take months to process. In the meantime, cash remains tied up, affecting working capital and creating additional administrative work.
An experienced customs broker understands how tariff provisions interact, verifies that the appropriate bond is in place, and reviews classifications before an entry is filed. That expertise helps importers avoid both costly delays caused by underpayment and overpayments.
For importers trying to handle customs issues themselves, it’s not just about understanding today's regulations, but keeping up with tomorrow's.
Trade policy has become increasingly fluid in recent years, with new tariffs, regulatory updates, and enforcement actions sometimes taking effect with little notice. That places a growing burden on importers to ensure every shipment complies with the rules in effect on the day it enters the United States, not the rules that existed when it left the overseas supplier.
Customs brokers are responsible for monitoring those changes in real time and adjusting filings accordingly. That work often happens behind the scenes, but it can significantly affect both compliance and landed cost.
Rozek points to the expiration of Section 122 tariffs on July 24, 2026, as one example. "Before the expiration, brokers still have to file the ISF on time, even though they don’t yet know what the tariff landscape would look like upon shipment arrival," he said. "That means entering the HS code to satisfy the ISF requirement, but perhaps going back later and updating the customs entry once new guidance is issued."
Rather than completing a shipment file once, brokers may need to revisit it as trade policies evolve between departure and arrival. If new tariffs are announced, existing provisions change, or additional reporting requirements are introduced, the customs entry must be updated before filing with CBP.
That additional work illustrates an often-overlooked aspect of customs brokerage services. Filing entries is only part of the job. Experienced brokers continuously monitor regulatory developments, evaluate how changes affect shipments already in transit, and make adjustments as needed to keep imports compliant.
For companies managing imports on their own, staying current with evolving trade policy can become a full-time responsibility. An experienced broker handles that complexity on your behalf, so shipments reflect the latest regulatory requirements and you can stay focused on running your business.
Seeing all that’s involved in the customs aspect of importing goods into the US, it’s a daunting prospect for SMB shippers to take it on in house. From documentation prep and proper HS classifications to keeping track of tariff and regulatory changes, it can easily be a full-time job. And every misstep can prove costly to your business.
I.C.E. Transport, a freight forwarder and licensed Non-Vessel Operating Common Carrier (NVOCC), handles all the logistical details of booking your freight at a competitive price. It can also provide customs clearance services, giving you peace of mind that every detail has been taken care of to ensure the smoothest clearance and cargo release process. Interested in learning more? Contact the logistics experts at I.C.E. Transport today.