Most importers discover they needed legal help about three weeks after they needed it. The shipment is stuck. Customs has issued a determination they didn't expect. The duties are twice what was projected. And now they're scrambling to understand what went wrong and what it's going to cost them to fix it.
This is a pattern that plays out constantly in U.S. trade — not because businesses are careless, but because the rules governing what you owe on imported goods are genuinely complex, shift with little warning, and carry a built-in disadvantage for the importer. Customs doesn't have much downside to getting a classification wrong. You do.
The right time to talk to a tariff attorney is before that shipment leaves the factory floor — but even if you're already in a dispute, there's more leverage available to you than most importers realize.
What Tariffs Actually Are — and Why the Details Matter So Much
A tariff is a charge imposed on goods imported into the United States, typically calculated as a percentage of the declared value of the merchandise. On paper, that sounds manageable. In practice, the difference between one classification and another — sometimes a matter of a single digit in the Harmonized Tariff Schedule — can translate to hundreds of thousands, or even millions, of dollars in additional duties.
The Harmonized Tariff Schedule is the system used to classify every imported product. It's exhaustive, it's technical, and it's interpreted by Customs in ways that don't always align with how a manufacturer or importer would naturally describe their own product. Add in the complexity of country of origin rules, valuation disputes, and special tariff treatment under various trade agreements, and you have a regulatory environment where even experienced importers regularly face unexpected assessments.
This isn't hypothetical risk. It's the day-to-day reality for companies that move goods across U.S. borders — and it's why having a tariff attorney in your corner, ideally before you import, is one of the highest-ROI decisions a trade-dependent business can make.
The Case for Pre-Importation Planning
U.S. Customs and Border Protection has an unusual distinction among federal agencies: it's one of the few where you can obtain a binding ruling before your goods ever arrive. That means importers who do the work upfront — classifying merchandise correctly, establishing country of origin, reviewing valuation — can lock in certainty that protects them from adverse decisions down the road.
This is what experienced trade counsel mean when they talk about pre-importation planning. It's not just about getting the paperwork right. It's about using the legal tools available to you before Customs has an opportunity to make a determination that you then have to fight.
Customs also expects importers to exercise what it calls "reasonable care" — a real standard with real consequences if it isn't met. Demonstrating reasonable care means having your classifications reviewed, your country of origin documented, and your valuation methodology sound. Working proactively with legal counsel is one of the most defensible ways to meet that standard.
The firms that have operated in this space for decades — like Stein Shostak Shostak Pollack & O'Hara, LLP, which has been handling customs and trade law since 1933 — understand that the difference between a smooth importation and a costly dispute is almost always what happened before the goods moved.
When You're Already in a Dispute
Pre-importation planning is the ideal scenario. But disputes happen even to importers who are careful. Customs may issue a rate advance or value advance on your entries — meaning they've reassessed what you owe at a higher rate than you declared. If that happens, you're not without options.
Most tariff classification and valuation disputes are resolved at the administrative level. An experienced tariff attorney knows how to challenge Customs' determinations through the appropriate channels, negotiate exposure, and in some cases use tariff engineering — minor product modifications or changes in how goods are shipped — to support a reclassification that carries a more favorable duty rate.
There are also savings provisions that importers often don't know about: certain categories of goods imported for repair, or products shipped as samples for future orders, may qualify for reduced duty treatment. These aren't loopholes — they're legitimate provisions built into the tariff schedule, but you have to know they exist and know how to use them.
The Export Side of the Equation
Trade law doesn't only apply to what comes in. If your business exports products or components, you also need to understand whether those goods are subject to export controls administered by the U.S. Department of Commerce or the Department of State.
Export compliance is a distinct area of law from customs and tariff work, but the same logic applies: the cost of getting it wrong — fines, loss of export privileges, reputational damage — almost always exceeds the cost of getting proper counsel upfront. Working with an import export attorney who handles both sides of the trade equation means you're not treating inbound and outbound compliance as separate problems.
Free Trade Agreements: Real Savings With Real Strings
If your supply chain touches countries that have trade agreements with the United States — and most do — you may be eligible for preferential tariff treatment that significantly reduces your duty burden. Free trade agreements can make imports substantially less expensive and open access to export markets on favorable terms.
The catch is that FTA qualification is rule-intensive. Country of origin requirements are strict. Minor documentation errors or incorrect determinations can result in disqualification — and retroactive liability for the duties you didn't pay. A tariff lawyer who specializes in FTA qualification can help you determine whether your products genuinely qualify, structure your supply chain to meet the requirements, and maintain the documentation that protects you if Customs audits the claim.
Customs Seizures and Penalties: The Stakes Get Higher
Sometimes disputes escalate beyond classification and valuation into seizure and penalty territory. Customs has broad authority to seize merchandise that it determines violates customs laws or the regulations of other federal agencies — the FDA, the Consumer Product Safety Commission, the EPA, and others that Customs enforces at the border.
A seizure doesn't just mean delayed goods. It means a forfeiture proceeding, potential civil penalties, and a compliance record that follows your company through future importations. If you're facing a seizure or have received a penalty notice, the response window is short and the process is procedurally specific. This is not the moment to try to navigate it without counsel.
What Working With Stein Shostak Looks Like
Stein Shostak Shostak Pollack & O'Hara, LLP has been representing importers, exporters, customs brokers, and bonded warehouse operators since 1933. The firm is based in Los Angeles, with reach into the Shanghai market, and has built a reputation over nine decades with both U.S. Customs officials and the broader international trade community.
The work covers the full range of customs and trade law: pre-importation planning, tariff classification disputes, valuation challenges, country of origin determinations, FTA qualification, export compliance, seizure defense, and regulatory guidance for customs brokers and foreign trade zones.
If you're an importer with a current dispute, a pending shipment you want to get right, or a growing trade operation that needs a compliance framework that actually holds, the place to start is a conversation.
Contact Stein Shostak Shostak Pollack & O'Hara, LLP at (213) 630-8888 or reach out online at steinshostak.com. The earlier you get counsel involved, the more options you have.