By the Waymore Shipping Operations Team | Last updated: September 28, 2026 | 12 min read

China to the United States Customs Clearance: Documents, Duties & Process

US import customs clearance for Chinese goods means three things: pre-arrival security filings (ISF 10+2 and AMS) lodged before your container even leaves China, a formal entry (CBP Form 7501) filed by a licensed broker with duty payment, and passing any exam CBP selects your container for. A clean, well-prepared entry clears in 1–3 days after arrival; a flawed one can sit for weeks. This guide covers the exact documents, the fee math on a real invoice value, and the holds we see most often on the China–US lane.

Waymore's documentation desk files ISF and coordinates US clearance partners for hundreds of China–US containers each month, so everything below reflects what actually happens at the border — not just the textbook version. If you haven't planned the ocean leg yet, start with our complete China-to-US shipping guide.

Who does what: importer of record, broker and bond

Three roles must be settled before your cargo ships. The importer of record (IOR) is legally responsible for the entry — a US entity with an EIN and, since CBP modernized entry processes, registration in the Automated Commercial Environment (ACE). Your Chinese supplier cannot be the IOR. The licensed customs broker files the entry and transmits duty — you can self-file in ACE, but almost all importers use a broker. Finally, the customs bond guarantees CBP gets its money: a single-entry bond for occasional shipments, or a continuous bond covering a full year of entries for roughly USD 400–600, which becomes the cheaper option once you pass three or four containers a year.

One practical note from our operations team: have your bond and broker lined up before the vessel sails. Freight arriving with no bond on file is one of the most preventable causes of terminal storage charges.

What documents does US customs require from China?

The China side is straightforward: your factory lodges the export declaration with China Customs (GACC) under our booking. The US side is where value, classification and agency rules live — and where US Customs and Border Protection guidance should be your reference for anything unusual. If your shipment qualifies for informal entry (generally under USD 2,500), the paperwork shrinks, but duty and agency rules still apply. New importers can brush up on terminology in our ISF and AMS filing explainer.

How is duty calculated on Chinese goods — a worked example

Suppose you import USD 50,000 of metal-framed office chairs (HTS 9401.31) on an ocean FCL. The base HTS duty is 0%, but Section 301 List 3/4A trade-action duties apply at 25%. The fee stack looks like this:

Two things importers consistently miss: first, Section 301 duties are levied on the customs value, not the retail price, so supplier discounts directly reduce duty; second, MPF is capped per entry at roughly USD 635 — consolidating several shipments into one entry can legitimately cut fees. General country-of-origin rules and programs are summarized by Export.gov for US buyers.

Why do shipments from China get held — and how do you avoid it?

1. Exams (VACIS, CET, intensive)

A share of containers is exam-selected randomly; others are targeted by risk profile. An X-ray exam (VACIS) adds 3–5 days and a few hundred dollars; an intensive exam with tailgate and strip means unloading the container — 7–10 days and USD 1,000–1,500 including drayage. You cannot eliminate the risk, but consistent paperwork, accurate weights and realistic declared values lower your targeting score over time.

2. Late or missing ISF

The ISF must be complete 24 hours before the container is loaded at the Chinese port. When a factory reschedules stuffing without telling us, the filing window breaks. CBP can issue a USD 5,000 liquidated damages claim — and repeat offenders lose ISF filing flexibility entirely. This is why Waymore confirms stuffing appointments with suppliers directly rather than relying on the factory's word.

3. Valuation and classification challenges

CBP compares your declared unit value against market ranges. Declaring USD 3.00 for goods that visibly retail for USD 25 invites a valuation query — and possible penalty — plus back duty. Classification errors cut both ways: we saw a client's "sports bags" reclassified from HTS 4202.92 (17.6%) to backpacks 4202.92 at a different 301 list, changing the duty outcome by thousands on one entry. Give your broker a real sample description, material breakdown, and use, not just the factory's catalog name.

4. Partner-agency holds (FDA and friends)

Food, supplements, cosmetics, medical devices and anything radiating (lasers, microwaves) face FDA import requirements — registration, prior notice, and sometimes facility audits before CBP even looks at duty. An importer who shipped a pallet of protein powder without FDA prior notice lost three weeks to the hold and paid USD 60/day in storage before the entry was allowed and the goods released.

Mini-case: clearing 4 pallets of LED shop lights, Shenzhen to Houston

A small industrial distributor shipped 9 CBM of LED shop lights LCL out of Shekou in October 2026. The factory's invoice listed no model numbers and a vague "lighting goods" description. Our desk rebuilt the invoice with SKU-level detail and the correct HTS 8513/9405 split before the vessel sailed, filed ISF on time, and pre-alerted the broker with the FCC-style compliance declaration for the drivers. The entry filed at arrival, cleared in two business days, and the LCL was delivered to a Houston warehouse on day 31 door-to-door — no holds, no exam. The total clearance cost came to USD 310 plus duty; the same shipment with the vague invoice would very likely have drawn a documentation hold and USD 500+ in storage.

What happens after your entry clears?

Clearance isn't the finish line. Once CBP releases the entry, the container must be picked up from the terminal within the carrier's free time — typically 4–5 working days at US West Coast ports, sometimes fewer for LCL. Miss it and per-diem (demurrage) starts at roughly USD 150–300 per day for a 40HC. If the container moves on a chassis, daily chassis charges apply too; return the container late to the yard and detention kicks in on top. For importers shipping to inland destinations by rail, build 3–6 extra days between vessel arrival and container availability at the inland ramp. Our demurrage and detention guide explains the fee mechanics and how we pre-book pickups so free time is never wasted.

Finally, keep every entry document for at least five years — CBP can audit declared values, and having clean CBP Form 7501s, invoices and payment records on file is the difference between a smooth retroactive review and an expensive one.

DDP vs DAP vs FOB: where does clearance responsibility sit?

Under FOB the importer owns everything from the Chinese port onward. DAP adds delivery but leaves customs to you. Under DDP, Waymore's side handles the entry, duty and bond — attractive if you have no US entity yet, but read our analysis of DDP costs and pitfalls on the US lane first, because the duty component and liability split differ more than most buyers expect.

Frequently Asked Questions

What documents are required for US customs clearance from China?

The core set is a commercial invoice, packing list, ocean bill of lading or air waybill, and the ISF 10+2 security filing lodged 24 hours before vessel loading. Your broker then files CBP Form 7501 with the commercial invoice as the basis for valuation. Product-specific additions can include an FDA prior notice, ISPM-15 wood packaging treatment, or a Children's Product Certificate.

How is US import duty calculated on goods from China?

Duty is calculated on the customs value (usually the price paid to the supplier) using the HTS code rate, plus Section 301 trade-action duties for most Chinese-origin goods, commonly 7.5% to 25%. Ocean entries also pay a 0.125% Harbor Maintenance Fee and a 0.3464% Merchandise Processing Fee with a minimum around USD 33 and a maximum around USD 635 per entry.

Why was my shipment from China held by US customs?

The most common causes are an X-ray or intensive exam selected at random or by targeting, a late or missing ISF filing, an incomplete commercial invoice, suspected undervaluation, a wrong HTS classification, or a missing partner-agency requirement such as FDA registration. Exam holds add roughly 5 to 10 days and USD 300 to 1,500 in exam fees depending on type.

Do I need a customs bond to import from China?

Yes. Every formal US entry requires a customs bond. A single-entry bond suits occasional imports, while a continuous bond (about USD 400 to 600 per year) covers all entries for 12 months and becomes cheaper once you import more than three or four containers a year. Waymore can arrange either alongside clearance.

Can my Chinese supplier act as importer of record?

No. The importer of record must be a US entity with an EIN and a customs bond. A Chinese factory cannot legally take that role. If you have not yet formed a US entity, the practical route is a DDP arrangement where Waymore's side handles clearance and duties — but understand that DDP shifts both the cost and the compliance risk to the seller side.