Taiwan to USA Sea Freight: FCL vs LCL, ISF Filing, and Port Selection

FCL (Full Container Load) means you book an entire container — typically 20-foot (20–28 CBM / ~22 metric tons) or 40-foot (58–68 CBM). You pay for the container regardless of how much cargo fills it. FCL is cost-efficient when your shipment exceeds ~15 CBM.

LCL (Less than Container Load) means your cargo shares a container with other shippers' goods. You pay by CBM (cubic meter). LCL is economical for shipments under 10–12 CBM but has higher per-unit cost, longer transit time due to consolidation/deconsolidation, and higher damage risk from mixed cargo handling.

Rule of thumb: under 10 CBM → LCL. 10–15 CBM → compare quotes. Over 15 CBM → FCL almost always cheaper per unit.

For Amazon FBA shipments, FCL is often preferred even at moderate volumes because it reduces transit time and gives you a single container to track through US Customs — simplifying ISF filing and entry documentation.

Major Taiwan export ports: Kaohsiung (largest, southern Taiwan), Keelung (northern Taiwan, near Taipei), and Taichung (central Taiwan).

Kaohsiung to LA/Long Beach: 14–18 days (direct service), 18–25 days (transhipment via Hong Kong or Busan). Keelung to Seattle: 12–16 days. Most Taiwan exporters use Kaohsiung for its frequency of direct US West Coast services.

US West Coast ports: Los Angeles/Long Beach (POLA/POLB) handles ~40% of US container imports. Seattle/Tacoma is faster for Northern California and the Pacific Northwest. Use LA/Long Beach for FBA shipments destined to Amazon's California or Nevada fulfillment centers.

US East Coast routing (via Panama Canal) adds 10–14 days. Use East Coast ports (Savannah, New York/New Jersey) only if your FBA or 3PL destination is in the eastern US — otherwise the transit premium is not justified.

Importer Security Filing (ISF), also called "10+2," is a US Customs and Border Protection requirement for all ocean cargo entering the US. The ISF must be filed by the importer of record (you or your US entity) at least 24 hours before cargo is loaded onto the vessel in the origin port.

The "10" data elements include: seller name/address, buyer name/address, importer of record number (your EIN or CBP-assigned number), consignee number, manufacturer name/address, ship-to party, country of origin, and 6-digit HTS code. The "+2" elements (vessel stow plan and container status messages) are filed by the carrier.

Penalties for late or missing ISF: $5,000 per violation. CBP can also place a "do not load" order on your cargo. Work with your customs broker to set up ISF filing as a standard workflow — it should be filed the moment your booking is confirmed and cargo details are known.

ISF amendment is allowed without penalty if filed before the 24-hour vessel loading deadline. Common amendment reasons: final HTS code confirmation, change in ship-to address (e.g., which FBA warehouse).

A licensed US Customs Broker prepares and files your entry with US Customs (CBP Form 3461 for informal entry under $2,500; CBP Form 7501 for formal entry over $2,500). For most FBA shipments, you will need a formal entry.

Documents your broker needs: commercial invoice (seller, buyer, HTS codes, unit prices, total value), packing list, bill of lading, and any applicable certificates (CE, FDA Prior Notice, TSCA, etc. depending on product category).

Broker fees: $100–250 per entry for standard goods. Add exam fees ($300–1,000) if CBP selects your container for inspection — this is random but more likely on first-time importers and certain HTS codes.

Establish a relationship with one licensed broker before your first shipment. Many Taiwan exporters use brokers that specialize in Taiwan-origin goods and already know the common HTS classifications, reducing errors and delays.

Amazon requires FBA shipments to include an FBA shipment ID label on cartons (separate from the shipping label). Generate these in Seller Central before cargo ships — your freight forwarder can apply labels at origin, but confirm this in writing.

Palletize floor-loaded containers before arrival at the FBA receiving dock. Amazon's receiving guidelines specify pallet height limits (50 inches stackable, 72 inches max) and banding requirements. Non-compliant pallets get rejected or trigger compliance fees.

For ocean shipments, allow 4–6 weeks total from factory door to FBA check-in: 2 weeks factory buffer, 2–3 weeks ocean transit, 1–2 weeks US customs + drayage + FBA receiving. Plan your reorder points accordingly to avoid stockouts during transit.