Section 321 Suspension One Year In: How Florida Importers Are Adapting

When Section 321 de minimis was suspended on August 29, 2025, the U.S. cross-border fulfillment model that had powered a decade of Chinese e-commerce growth essentially ended overnight. The $800 duty-free threshold — the rule that let an entire industry ship parcels direct to U.S. consumers without formal customs entry — was gone for all countries, all values.

Ten months in, the dust has settled enough to see how Florida importers have actually adapted. This post covers what changed, what’s working, and what’s still tripping up shippers who haven’t fully rebuilt their import flow.

What the suspension actually changed

Pre-August 2025: shipments valued under $800 entered the U.S. duty-free, with minimal paperwork and no customs broker required. The volume was enormous — billions of parcels per year, primarily from China via air, with Miami International Airport handling a meaningful share of the Latin America-facing flow.

Post-August 2025: every shipment, regardless of value or origin, requires:

• A formal customs entry
• A customs bond
• Full duty payment
• Standard CBP review and clearance

For a $40 parcel that used to clear in hours under Section 321, the new process adds documentation, broker fees, bond costs, and duty. The math that made certain product categories viable as direct-to-consumer imports no longer works.

The first-six-month scramble

In the first half of the post-321 era, three things happened simultaneously:

E-commerce sellers consolidated to bonded warehouses. Sellers who had been air-shipping parcels direct from China started ocean-shipping in bulk to Miami-area bonded warehouses, then fulfilling domestic. The warehouse and 3PL industry in South Florida added meaningful capacity to absorb this.

Broker workload exploded. Customs brokers who used to process Section 321 in batches were suddenly filing formal entries on parcels they previously ignored. Several broker software platforms struggled to scale. Some sellers waited weeks for entries that previously took minutes.

Some product categories disappeared from the U.S. market. Margin-thin items where duty equaled or exceeded landed cost stopped being imported at the same volumes. Sellers either raised prices, switched to domestically-sourced alternatives, or exited.

What’s working in mid-2026

Importers who have adapted well are doing some combination of:

Bulk ocean to Florida bonded. A 40-foot container clears one formal entry instead of 5,000 parcel entries. Duty is paid once at landed cost, not at retail value. South Florida’s bonded warehouse density makes this viable for Latin America and Caribbean-facing sellers in particular.

FTZ-based fulfillment. Foreign Trade Zone facilities let importers defer duty until cargo leaves the FTZ for U.S. consumption. For high-volume sellers, the cash-flow improvement is meaningful. Re-exports incur no U.S. duty at all.

Tighter HTS classification. Under Section 321, classification was sloppy because nobody paid duty. Now it matters. Importers who invested in classification reviews are paying lower duty than competitors who default to high-rate categories.

Bond optimization. Single-entry bonds work for one-off shipments; continuous bonds are usually cheaper for any importer doing more than a few entries per month. Picking the right bond structure is a $5,000-$50,000 annual decision.

What late adopters are still getting wrong

Three patterns we see in mid-2026 from importers who haven’t fully reorganized:

Treating every shipment as urgent. Without a customs flow built for formal entries, every shipment becomes a fire drill. Importers who invested in an EDI link between their seller system and their broker are clearing in hours; those still emailing PDFs are clearing in days.

Skipping ISF on ocean. ISF (Importer Security Filing, the “10+2”) was always required for ocean freight, but Section 321 sellers shipping air largely ignored it. Switching to ocean without an ISF process means $5,000 penalties.

Misunderstanding partner government agency (PGA) holds. FDA, USDA, FCC, and other PGA flags now apply to shipments that used to fly under the de minimis radar. The single largest source of delays in 2026 is PGA holds on shipments the importer assumed were straightforward.

What this means for Florida brokerage capacity

PortMiami and Miami International Airport are both seeing a different mix of cargo than they did in 2024. Less direct-to-consumer parcels; more bulk ocean and consolidated air; more formal entries; more FTZ activity. Customs broker capacity has caught up to demand, and several Florida brokers added software automation to handle the entry volume.

The brokers winning Florida business in 2026 are the ones who can:

• Auto-classify SKUs using AI-assisted HTS engines
• File ISF and entry from a single seller integration
• Manage continuous bond utilization across multiple importers
• Coordinate with bonded warehouse and FTZ partners under one roof

Practical checklist for Florida importers

If you import into the U.S. and haven’t reviewed your customs setup since the suspension:

• Audit your bond — single vs. continuous, and is the amount right?
• Audit your top-50 SKU HTS codes for accuracy
• Confirm your broker has ISF on file for every ocean shipment
• Identify whether any of your inventory should be in an FTZ
• Document your PGA exposure (FDA, USDA, FCC, etc.) by product line
• Confirm landed-cost models reflect post-321 duty, not the legacy assumption of duty-free

Most of these are one-time exercises that pay back within months in lower duty and faster clearance.

How Go Freight supports Florida customs brokerage

Go Freight provides U.S. customs brokerage services to Florida importers, with in-house bonded warehouse capacity for clients who want entry, storage, and distribution under one roof. We handle classification reviews, ISF filing, bond management, and PGA coordination, and our brokerage team works alongside our drayage and warehouse operations so shipments hand off cleanly between teams.

If you import into the U.S. through Florida and want a broker who can quote both a cleared entry and the warehouse and final-mile that follow, call Go Freight at (786) 244-3235 or visit our U.S. Customs Logistic Services page to start the conversation.

Sources: Section 321 in 2026 — Dutiable; Section 321 De Minimis Update — WSI; FDA Tightens Section 321 — Future Forwarding; From Section 321 to Formal Entry — Clearit USA.