Why Importers Need a US Customs Lawyer Now

If you've been importing goods into the United States over the last two years, you already know that the ground has been shifting constantly under your feet. Tariffs imposed, challenged, struck down, replaced, appealed again. Exemptions eliminated. Enforcement ramped up. New investigations launched with almost no warning. And billions of dollars in potential refunds now sitting in legal limbo while the courts and agencies figure out how to process them.

This is not a normal moment in US trade law. It is genuinely one of the most turbulent and consequential periods for importers in decades — and the companies navigating it without qualified legal counsel are taking on far more risk than most of them realize.

The Post-IEEPA Landscape Is More Complicated Than It Looks

In early 2026, the Supreme Court issued its decision in Learning Resources v. Trump, ruling that the IEEPA-based tariffs imposed on Chinese goods, as well as the broader "reciprocal" tariffs applied across multiple trading partners since April 2025, exceeded executive authority and lacked the required Congressional authorization. On the surface, that sounds like relief for importers. The reality is considerably messier.

CBP ceased collecting IEEPA tariffs in late February 2026 following an executive order, and the US Court of International Trade is now working through the mechanics of how refunds will actually be issued. Estimates of total refund exposure run between $150 billion and $200 billion. If your company was an importer of record paying IEEPA tariffs through 2025 and into 2026, you may be entitled to a refund — but only if you move quickly and correctly. Protest deadlines are tied to entry liquidation dates, and options narrow significantly once liquidation occurs.

Meanwhile, the administration is actively pursuing replacement tariff authority through Section 301 and Section 232 investigations, meaning the rate and scope of duties on many product categories could shift again within months. A temporary 10% import surcharge under Section 122 is already in place, and its legal basis is being litigated separately.

If that paragraph made your head spin, that's exactly the point. This environment is not one that lends itself to self-navigation.

What a US Customs Lawyer Actually Does in This Environment

There's a common misconception that customs attorneys are primarily useful when something goes wrong — an enforcement action, a penalty notice, a seizure. That reactive framing misses the much larger value these professionals bring in a period like this one.

A qualified us customs lawyer functions as a strategic advisor throughout the import cycle, not just a crisis responder. In the current environment, that means several things.

First, tariff classification review. The HTS classification assigned to your goods determines the duty rate you pay, and in a landscape where Section 301 lists, Section 232 orders, and replacement tariffs are all layered on top of base duty rates, a misclassification isn't just a technical error — it's a financial exposure that can run to millions of dollars in unpaid duties, interest, and penalties. Classification disputes are also increasingly a target of CBP enforcement, and the DOJ-DHS Trade Fraud Task Force launched in 2025 has made customs enforcement a significantly higher priority.

Second, refund strategy. If your company paid IEEPA tariffs and is potentially eligible for CBP refunds, the window to preserve your options is not unlimited. An experienced customs attorney can map your entry summaries, identify which liquidations are approaching deadline, and structure protests or intervention at the Court of International Trade appropriately. This is genuinely time-sensitive work.

Third, supply chain restructuring. Many importers have been in the process of diversifying away from China-origin sourcing in response to Section 301 tariffs. This process involves real legal complexity — country of origin determinations, substantial transformation analysis, the risk of transshipment enforcement — that has significant legal and financial consequences if not handled correctly.

Why Tariff Classification Is the Central Battlefield

If there is one area where legal counsel delivers the clearest, most quantifiable return for importers right now, it's tariff classification. The HTS code applied to a shipment drives everything: the base duty rate, which Section 301 lists apply, whether Section 232 steel or aluminum duties are triggered, what antidumping or countervailing duty orders are relevant, and now which Section 122 surcharges apply.

Getting this wrong costs money. Getting it right — or more precisely, making a defensible, well-documented classification argument — can save enormous amounts of it. And in a period when CBP is aggressively auditing importers through Focused Assessment programs and the DOJ is actively pursuing customs fraud cases, having a documented, legally supported classification position is protection as well as savings.

A tariff attorney brings something a customs broker alone often cannot: the ability to make and defend a legal argument before CBP, before the Court of International Trade, or before the Court of Appeals for the Federal Circuit. Customs brokers are operationally essential. But when the classification is genuinely contested or the stakes are high, you need someone who can litigate.

The De Minimis Change Nobody Was Ready For

One of the less-discussed but practically significant developments of 2025 was the elimination of the de minimis exemption from formal entry requirements for imports under $800 per person per day. For years, this threshold allowed low-value shipments — particularly from e-commerce platforms — to enter the US without formal customs entry, paying no duties and facing minimal scrutiny.

That's over. The change has rippled through the e-commerce supply chain in ways that many small and mid-size importers are still adapting to. Products that previously cleared informally now require formal entry, proper HTS classification, and payment of applicable duties. Businesses that built their import model around de minimis clearance need to restructure — and doing so correctly requires understanding both the classification and valuation requirements that now apply.

Enforcement Is Up, and It's Not Going Back Down

Record False Claims Act recoveries were reported in fiscal year 2025, and CBP enforcement data shows increased detentions under the Uyghur Forced Labor Prevention Act across high-risk industries. The DOJ-DHS Trade Fraud Task Force is actively pursuing civil and criminal enforcement against importers accused of duty evasion, misclassification, and country-of-origin fraud.

This is the environment in which a tariff lawyer becomes not just useful but genuinely necessary for any importer operating at meaningful scale. The risk isn't abstract — it's companies facing penalty notices, Focused Assessments, grand jury subpoenas, and exclusion orders. The cost of getting this wrong has never been higher.

Building a Defensible Import Program

The companies coming through this period in the strongest position aren't the ones who got lucky on tariff rates. They're the ones who built legally defensible import programs — documented classification positions, audited valuation methodologies, country-of-origin analysis that survives CBP scrutiny, and relationships with qualified legal counsel who can respond quickly when the landscape shifts again.

Because it will shift again. The replacement tariff investigations currently underway will produce new duty orders. The litigation around the Section 122 surcharge will produce new rulings. USMCA's scheduled formal review in July 2026 will bring its own set of compliance questions for companies sourcing from Canada and Mexico.

The importers who treat legal counsel as a cost of doing business — rather than a fee to be avoided until crisis hits — are the ones who'll be positioned to move quickly when opportunities open up and protected when enforcement pressure increases.

If your import program is overdue for a legal review, now is the time. Talk to a qualified US customs attorney who understands the current tariff landscape and can help you protect your position, pursue refunds you're owed, and build a compliance program that holds up under scrutiny. Don't wait for the penalty notice.