7 Things Your ITS Customs Broker Must Do Right
An ITS customs broker — short for International Trade Services customs broker — is the licensed professional responsible for clearing your goods through U.S. Customs and Border Protection from start to finish. Get the right broker and your shipments move predictably. Get the wrong one and you face delays, misclassification penalties, and unexpected duty bills that can cost far more than the goods themselves.
This list covers the 7 critical functions your customs broker must execute correctly, why each one matters, and what poor performance looks like so you can spot problems early.
ITS Customs Broker: A CBP-licensed agent authorized under 19 CFR Part 111 to transact customs business on behalf of importers, including filing entry documents, classifying goods under the Harmonized Tariff Schedule, paying duties, and communicating directly with U.S. Customs and Border Protection. Brokers must hold an individual CBP license and pass a rigorous national exam with a historical pass rate of approximately 15–20%.
Quick Comparison: 7 Functions at a Glance
| Function | Why It Matters | Risk if Done Poorly | Frequency |
|---|---|---|---|
| ISF Filing | Required 24 hrs before loading | $5,000+ CBP penalty per violation | Every ocean shipment |
| HTS Classification | Determines duty rate | Back duties + 19 USC 1592 penalties | Every entry |
| Duty Drawback | Recovers overpaid duties | Missed refund opportunities | Ongoing |
| AD/CVD Screening | Identifies extra duties | Unexpected 200%+ duty bills | Every entry |
| Entry Filing & Review | Core clearance document | Delays, exams, fines | Every shipment |
| Post-Entry Corrections | Fixes errors before CBP finds them | Fraud accusations, liquidation disputes | As needed |
| Compliance Recordkeeping | Meets 5-year retention rule | CBP audit failures | Ongoing |
1. ISF Filing — On Time, Every Time
Importer Security Filing (ISF) must be submitted to CBP at least 24 hours before a vessel departs a foreign port for the United States. This is not optional and it is not the carrier’s job — it is your broker’s job.
CBP can issue penalties of up to $5,000 per late or inaccurate ISF filing. In 2022, CBP processed over 13 million ISF transactions, and non-compliance remains one of the most common triggers for cargo holds at U.S. ports.
A competent ITS customs broker files ISF as a standard part of every ocean shipment workflow, not as an add-on service. They collect the 10 data elements required under 19 CFR 149 — including seller, buyer, importer of record, consignee, manufacturer, ship-to party, country of origin, and HTS number — before your cargo even leaves the factory.
What poor performance looks like: Your broker asks you to supply all ISF data yourself with no checklist, files late because they waited for the commercial invoice, or charges separately for a service that should be bundled.
Browse CBP-licensed customs brokers by port of entry to find brokers who specialize in your specific load point.
2. HTS Classification — Precise, Defensible, and Documented
Every product you import needs a 10-digit Harmonized Tariff Schedule (HTS) code. That code determines your duty rate, any applicable trade remedies, and whether you need import permits or licenses.
Misclassification is the single biggest source of importer liability. Under 19 USC 1592, CBP can assess penalties equal to the unpaid duties even when the error was unintentional — and up to four times the unpaid duties for negligent or fraudulent misclassification.
A qualified broker doesn’t guess at HTS codes. They use hts.usitc.gov for the official tariff schedule and cross-reference CBP binding rulings when classification is ambiguous. If your product sits between two headings, a good broker flags it and recommends requesting a binding ruling before the shipment arrives.
Use case: An electronics importer bringing in IoT sensors that could be classified under Chapter 84 (machines) or Chapter 85 (electrical apparatus) — a difference that can mean a 0% vs. 3.9% duty rate plus Section 301 exposure. A precise broker makes the right call and documents the reasoning.
3. Antidumping and Countervailing Duty Screening
Antidumping (AD) and countervailing duty (CVD) orders can add hundreds of percent in duties on top of the standard tariff rate. There are currently over 600 active AD/CVD orders maintained by the enforcement.trade.gov database.
A shipment of steel pipe fittings from China, for example, can carry AD rates exceeding 182%. If your broker doesn’t screen for this before entry, you may owe those duties retroactively — sometimes years later after a CBP audit.
Your broker must check the AD/CVD orders database on every entry for covered goods, verify the correct cash deposit rate by exporter, and flag any scope ambiguity to you before filing.
What poor performance looks like: Your broker files entry without checking AD/CVD applicability, you receive a bill 18 months later after CBP liquidation, and your broker says “that’s your responsibility as the importer of record.” It is not. Your broker’s core job includes this screening.
Brokers who specialize by commodity — steel, textiles, chemicals — are far more likely to catch AD/CVD exposure in your specific category.
4. Entry Filing and Pre-Arrival Review
The entry summary (CBP Form 7501) is the central customs document. It must be filed accurately and, in most cases, within 15 days of cargo release. Errors here trigger liquidation disputes, supplemental duty bills, and CBP exams that hold your cargo for days.
A strong ITS customs broker reviews the commercial invoice against the packing list and bill of lading before filing — not after. They verify that the importer of record, country of origin, valuation basis, and HTS codes are all consistent across documents.
CBP’s ACE (Automated Commercial Environment) portal processes over 40 million entry lines per year. Entry errors, even minor ones, can trigger automated holds that delay cargo by 3–7 business days at busy ports like Los Angeles/Long Beach or New York/Newark.
Use case: A food importer whose supplier consistently invoices in USD but lists a Euro-denominated transaction value in the certificate of origin. A careful broker catches the discrepancy and resolves it before entry — not after CBP flags it for a formal examination.
5. Duty Drawback — Recovering What You’ve Overpaid
Duty drawback is a legal mechanism that allows importers to recover up to 99% of duties paid on goods that are subsequently exported or destroyed. It is authorized under 19 USC 1313, and yet most importers leave significant money on the table because their broker never mentions it.
In fiscal year 2023, CBP processed approximately $1.8 billion in duty drawback claims. Companies that manufacture domestically using imported inputs, or that distribute imported goods internationally, are often eligible.
Your broker should proactively assess your eligibility for manufacturing drawback, unused merchandise drawback, or rejected merchandise drawback — and file the claims within the three-year filing window.
What poor performance looks like: You’ve been importing components for two years, exporting finished goods regularly, and your broker has never once raised the topic of drawback. That’s recoverable money your broker left uncollected.
6. Post-Entry Corrections and Protests
Mistakes happen. The question is whether your broker catches them before CBP does. A post-entry amendment (PEA) or a CF-4333 protest under 19 USC 1514 gives importers a formal path to correct errors and challenge CBP decisions — but both have strict deadlines.
Post-entry amendments must generally be filed before the liquidation date. Protests must be filed within 180 days of liquidation. Miss either window and your options narrow sharply.
A proactive broker monitors liquidation dates in ACE, reviews liquidation notices for unexpected duty increases, and files protests on your behalf when CBP applies the wrong rate or misidentifies a product’s origin.
Use case: CBP liquidates an entry at a higher duty rate than filed because they reclassified the product. Your broker has 180 days to protest. A broker who doesn’t track liquidation dates will miss that window entirely. Review real-world broker service profiles at CustomsBrokerIndex.com to find brokers who explicitly offer post-entry support.
7. Recordkeeping and Audit Readiness
Under 19 CFR 163, importers must retain entry records for five years from the date of entry. This includes commercial invoices, packing lists, bills of lading, entry summaries, and any supporting classification documents.
CBP’s Regulatory Audit and Agency Advisory Services division conducts focused assessments and comprehensive audits of importers. A broker who keeps sloppy records — or returns documents to you in an unorganized format — leaves you exposed in an audit.
Your broker should maintain a clean digital file for every entry, provide you with copies of all CBP correspondence, and be able to reconstruct the basis for any classification decision made in the past five years.
What poor performance looks like: You receive a CBP audit notice and your broker can’t locate the supporting documentation for 30% of your entries from three years ago. At that point, the importer of record — you — bears the legal burden.
For brokers with established compliance track records, browse by state to find licensed professionals in your region.
How to Choose the Right ITS Customs Broker
Focus on four criteria:
- License verification. Confirm the broker holds an active individual CBP license via the CBP broker lookup. Firms can operate under one license but you want to know who is actually signing your entries.
- Commodity experience. A broker who handles automotive parts daily will be more accurate on Chapter 87 classifications than a generalist. Match the broker to your product type using the specialty directory.
- Port presence. If most of your cargo comes through a specific port, choose a broker with staff or a licensed agent at that port. Entry issues get resolved faster when someone can walk to the CBP exam site. See brokers by port of entry.
- Communication standards. Ask prospective brokers how they notify you of exam holds, how they document classification decisions, and what their response time SLA is. Vague answers are a warning sign.
The National Customs Brokers & Forwarders Association of America (NCBFAA) maintains a member directory and professional standards that can help identify brokers committed to ongoing education. The International Trade Administration also publishes guidance on selecting trade service providers.
You can also review detailed profiles for established firms — including Davidson and Sons, Interglobo Customs Broker Inc, and Soo Hoo Customs Broker — to understand what experienced brokers offer.
Frequently Asked Questions
What does an ITS customs broker do?
An ITS (International Trade Services) customs broker is a CBP-licensed professional who files entry documents, calculates duties and taxes, classifies goods under the Harmonized Tariff Schedule, and communicates with U.S. Customs and Border Protection on behalf of importers. They are legally authorized to act as your agent in the customs clearance process under 19 CFR Part 111.
How do I evaluate whether my customs broker is doing a good job?
Look for timely entry filing (ideally before vessel arrival), accurate HTS classifications, proactive duty-saving suggestions, and clean CBP compliance records. A reliable broker should also respond within 24 hours to routine inquiries and flag potential exam holds or AD/CVD exposure before they become problems.
How much does an ITS customs broker typically charge?
Entry filing fees typically range from $75 to $300 per shipment, depending on complexity. Additional charges apply for ISF filing ($25–$50), bond fees, and exam fees if CBP selects a shipment for inspection. High-volume accounts often negotiate flat monthly rates or per-entry discounts.
Which type of customs broker is best for a first-time importer?
First-time importers benefit most from a full-service customs broker who handles ISF filing, HTS classification, duty calculation, and post-entry corrections under one roof. Look for brokers with experience in your specific commodity and country of origin, not just a low entry fee.
What is the most common mistake importers make when hiring a customs broker?
The most common mistake is choosing a broker based on price alone. Low fees often mean misclassification risk, slow response times, or no proactive compliance support. A misclassified HTS code can trigger back duties, penalties under 19 USC 1592, or CBP seizure — costs that far exceed any fee savings.
Ready to find a licensed ITS customs broker who checks all seven boxes? Search all CBP-licensed customs brokers on CustomsBrokerIndex.com — filter by location, port of entry, and specialty to find the right match for your imports.