Customs Clearance for China Imports: Step by Step

Customs clearance is the process of getting your goods legally released by the customs authority of the destination country after they arrive from China. For the importer, it means proving what the goods are, what they are worth, where they were made, and paying every duty, tax, and fee owed before the cargo can leave the port. Done right, it is mostly paperwork handled by your customs broker while you watch the shipment move through the port in a few days. Done wrong, it becomes examinations, storage fees, demurrage, and in the worst cases seizure of the cargo.

This guide walks through the full process from the importer's side. The steps below are universal: documents, classification, valuation, declarations, payment, and record keeping look the same everywhere. Because so many first-time importers ship from China to the United States, this guide uses a US ocean-freight shipment as the worked example for each step. Where a rule is US-specific, such as ISF filing or ACE entry, it is clearly labeled. If your destination is the EU, the UK, or another market, the sequence stays the same and only the agency names and forms change.

How long does customs clearance take, realistically?

First-time importers almost always ask this first, so here is the honest answer. A clean entry, where the broker filed everything before arrival and nothing raises a flag, can be released within hours to a couple of days of the vessel arriving. Cargo clearance itself is rarely the bottleneck. The delays come from everything around it: a missing document, an HS code that looks wrong to the system, a random examination, a hold by a partner agency like the FDA, or port congestion. Build your schedule around a week of clearance buffer on your first shipment, even though most shipments clear faster. Never promise your customers delivery dates that assume the fastest case.

Step 1: Establish who the importer of record is

Before any paperwork gets filed, someone has to take legal responsibility for the shipment. That party is called the importer of record. It can be you, your company, or a licensed customs broker acting on your behalf, but the liability never fully leaves you. The importer of record is responsible for the accuracy of everything filed with customs, for paying the duties, and for keeping the records. If your broker makes an error on the entry summary, CBP holds you accountable, not the broker.

To import into the United States you need a federal tax identifier: an IRS-issued Employer Identification Number for a business, or a Social Security Number if you import as an individual. Non-resident importers based outside the US still need an EIN, which they can obtain from the IRS before the first shipment sails. Sort this out before the goods leave China. Applying for an EIN takes days, and doing it after the vessel has departed is exactly the kind of last-minute scramble that leads to errors.

You will also sign a power of attorney with your customs broker. In the US this is CBP Form 5297, and it gives the broker legal authority to act for you in customs transactions. Do not treat it as a formality. Read it, confirm the scope, and keep a copy with your other import records.

Step 2: Classify your goods under the right HS code

Every product in international trade is assigned a code under the Harmonized System, an international classification maintained by the World Customs Organization. The destination country then extends it: the US uses 10-digit HTSUS numbers, the EU uses Combined Nomenclature codes, and other markets have their own extensions. The code determines the duty rate, so this single decision can be worth thousands of dollars.

Classification is where beginners quietly lose money in two directions. Guess a code that carries a lower rate than the goods deserve and you risk penalties, duty bills years later, and problems during liquidation. Default to the most obvious high-rate code and you simply overpay on every shipment. Neither outcome is visible at the port, which is why this mistake survives so long in new import businesses.

Get the classification done while the goods are still being manufactured, not while they sit at the port. Ask the supplier for detailed product specifications, material compositions, and how the product is actually used, because all of that feeds the classification rules. For genuinely ambiguous products, the US offers binding rulings, and CBP's CROSS database shows how similar products were classified in the past. Keep the written basis for your classification decision in your files. If CBP ever questions the entry, "my broker picked it" is not a defense. A documented reasoning trail is.

Step 3: Arrange a customs bond before the shipment departs

In the US, commercial shipments valued above $2,500 require a customs bond, which is a financial guarantee that you will pay the duties, taxes, fees, and any penalties owed. There are two kinds, and the choice is mostly about how often you import.

A single entry bond covers one shipment. The bond amount is generally not less than the total entered value of the merchandise plus all duties, taxes, and fees, and it can be three times the entered value if the goods are subject to partner-agency requirements or are restricted merchandise. This is the sensible option for a first shipment or an occasional import.

A continuous bond covers all of your shipments for a year at every US port. The minimum is $50,000, or 10 percent of the duties, taxes, and fees you paid in the previous 12 months, whichever is greater. Once you are importing regularly, the continuous bond is almost always cheaper than buying a single entry bond every time, and many brokers will tell you to switch after your second or third shipment. Arrange the bond through a surety company or let your broker handle it, but do it before the goods sail. An entry cannot be filed without a bond in place, and a vessel that arrives without one will sit at the port while you scramble.

Step 4: Hire a customs broker or prepare to self-file

You are legally allowed to clear your own goods in many countries, including the US, but for a first-time importer self-filing is almost never the right call. The filing systems, ACE in the United States, are built for professionals. The forms assume you know classification, valuation rules, and agency requirements, and the penalties assume it too. A licensed customs broker exists to turn your commercial documents into a compliant entry, and the fee, usually a few hundred dollars per entry, is small compared to what one classification error costs.

Choose the broker before the goods leave China, not after they arrive. A broker engaged early can review your documents, flag a wrong HS code, tell you which partner agencies apply to your product, and set up your account and power of attorney without time pressure. Ask which ports they clear regularly, how they handle examinations, whether they file ISF themselves, and how they communicate during a hold. The cheapest quote is rarely the cheapest broker once a shipment goes to intensive examination and nobody answers the phone.

Step 5: File the Importer Security Filing before the vessel loads

If your goods travel by ocean freight to the United States, there is a filing that happens before the ship even leaves China: the Importer Security Filing, known as ISF 10+2 or simply "10+2." The importer, or their agent, must electronically submit 10 data elements about the shipment to CBP no later than 24 hours before the cargo is laden aboard the vessel at the foreign port. The ocean carrier separately submits 2 data elements, the vessel stow plan and container status messages, which is where the "+2" comes from.

The importer's agent is usually the customs broker or the freight forwarder, but the liability sits with the importer of record, and the penalty for late, inaccurate, or missing ISF filings runs up to $5,000 per violation. The most common ISF failures happen because the supplier sent the packing list late, the manufacturer name on file does not match, or nobody was clearly assigned the job. Confirm in writing, before loading, that your ISF has been filed. For air freight the ISF does not apply, but equivalent advance data requirements exist in most major markets, so do not treat ocean as the only mode with pre-departure obligations.

Step 6: Assemble the document package

Customs clearance runs on documents. Your broker needs a complete, consistent package before the vessel arrives, and inconsistencies between documents are one of the most common reasons entries get flagged. Collect the following for every shipment and check that the names, addresses, quantities, values, and descriptions match across all of them.

Commercial invoice. The supplier's invoice is the core document. It must show the buyer and seller, a full description of the goods, quantities, unit prices, total value, currency, country of origin, and the Incoterms. The value declared here is the basis for duty calculation, so it must be the real transaction value. Undervaluation is one of the fastest ways to lose your importing privileges.

Packing list. Details how the goods are packed: number of cartons, weights, dimensions, and marks. CBP and port operators use it to reconcile the physical cargo against the declaration.

Bill of lading. The ocean carrier's transport document and, for ocean freight, the document of title. Your broker needs the arrival information from it, and you or your forwarder need it to take delivery of the cargo from the carrier after release.

Certificate of origin. Not every shipment needs one, but many do: to claim preferential duty rates under a trade agreement, to satisfy a partner agency, or to meet a buyer's letter-of-credit terms. For China-origin goods, certificates of origin are commonly issued by the China Council for the Promotion of International Trade or by Chinese customs authorities, and the type you need depends on the destination market and the trade agreement you are claiming under. Read our detailed guide to certificates of origin from China before your first shipment, because a wrong or missing certificate is a frequent cause of denied preference claims.

Product-specific certificates and test reports. Depending on the product, customs may require proof of compliance with safety, health, or environmental rules: FCC grants for electronics, children's product certificates, FDA prior notice for food, phytosanitary certificates for wood packaging, and similar. These must be arranged during production, not after shipment. No broker can conjure a test report for goods already on the water.

Insurance certificate and freight documents. Needed for valuation checks and for your own protection. Keep them with the entry file even if customs never asks.

One more discipline that pays off: keep every version of every document. If the supplier revises the invoice after loading, tell your broker immediately. A value on the filed entry that differs from the final commercial invoice is a discrepancy waiting to become a penalty.

Step 7: Track the vessel and handle arrival

While the ship is on the water, monitor it. Your forwarder should give you the vessel name, voyage number, and estimated arrival. A few days before arrival, the carrier or forwarder issues an arrival notice with the freight charges due. Pay these promptly: freight that has not been released by the carrier cannot be picked up even after customs releases it, and unpaid freight accrues its own terminal storage.

Before arrival, your broker files the entry data with CBP through the Automated Commercial Environment. Entry documentation must generally be filed within 15 calendar days of arrival, but brokers normally file on or before arrival so release can happen quickly. Book drayage with a realistic window: the container cannot move until both customs and the carrier have released it.

Step 8: CBP reviews the entry and grants release

This is the step people picture when they say "customs clearance." CBP's system reviews the filed entry against its targeting criteria and returns an outcome. Most clean entries are released without physical intervention, sometimes within hours of arrival. Your broker receives the release message through ACE, and the cargo becomes available for pickup once the carrier also releases it.

Release is permission to take the goods, not the end of the process. The financial settlement and legal finality come later, in the entry summary. If the system flags your shipment, release waits until the examination or agency review is complete.

Step 9: Understand examinations and agency holds

When CBP decides to look closer, the shipment goes to examination. The terminology you will hear from brokers and forwarders is trade shorthand rather than a formal published menu, but these are the levels people mean.

Document review. CBP asks for additional paperwork or clarification, often through the broker. This is the mildest outcome and usually resolves in a day or two if your documents are in order.

Non-intrusive inspection. The container passes through X-ray or gamma-ray scanning, commonly called VACIS, without being opened. Most scans clear the same day.

Tailgate examination. Officers open the container at the port and visually inspect the cargo without a full unload. Expect a day or two of delay plus examination fees charged by the terminal operator.

Intensive examination. The container is moved to a central examination station, unloaded, and each line item can be inspected, counted, and sampled. This takes several days and generates the highest handling charges. Contraband enforcement teams may be involved if the targeting was security-related.

Separately, partner government agencies can place holds. The FDA can hold food, cosmetics, and medical devices. The CPSC can hold children's products and other regulated consumer goods. An agency hold lasts until that agency is satisfied, and your broker cannot clear it with CBP alone. Products that needed certifications or registrations in step 6 sail through these holds. Products that skipped them do not.

Two practical points. First, examination and storage costs are yours, and demurrage clocks keep running during exams, which is why a shipment selected for intensive examination can cost several times its duty in handling charges. Second, do not take an examination as an accusation. Random selections happen, new importers get examined more often, and certain commodities are targeted by policy. The correct response is a complete document package delivered fast through your broker.

Step 10: File the entry summary and pay duties, taxes, and fees

Within 10 working days of the cargo's release from CBP custody, your broker files the entry summary on CBP Form 7501 and deposits the estimated duties. This is the formal accounting of the import: the final classification, the declared value, the duty calculation, and the fees. The entry summary is filed electronically through ABI, the broker interface to ACE, and most importers pay through a CBP ACH account or let the broker advance the payment.

What you actually pay on a China-origin shipment to the US has several layers, and new importers often budget for only the first one.

Charge · How it is calculated · Notes

• Import duty: HTSUS rate applied to customs value · Rate depends on classification; many China goods also carry Section 301 additional duties
• Section 301 duties: Additional percentage on China-origin goods · Rates have changed repeatedly; verify the current rate for your HTS code before every shipment
• Merchandise Processing Fee: 0.3464% of entered value · Minimum $33.58 and maximum $651.50 per formal entry for FY 2026, which ends September 30, 2026; new FY 2027 limits of $34.58 minimum and $670.86 maximum take effect October 1, 2026 (see CBP's user fee table)
• Harbor Maintenance Fee: 0.125% of cargo value · Ocean shipments only; not charged on air freight
• Broker fees, exam and handling charges: Per-entry and per-service · Agreed with your broker and forwarder in advance

Section 301 deserves a special warning for China sourcing. These additional duties apply to most China-origin goods on top of the normal HTSUS rate, and the rates and product coverage have been revised multiple times through USTR notices. Never copy a Section 301 rate from an old article or a supplier's quote. Check the current HTSUS and the latest USTR actions at the time of shipment, and build your landed cost model so a rate change does not erase your margin. Our guide to calculating landed cost from China shows how to fold duties and fees into a per-unit cost you can plan around.

One more update that catches importers who learned the old rules: the US duty-free de minimis threshold of $800 no longer exists for any country. Every commercial shipment is now dutiable regardless of value, as explained in the FAQ below. If your plan was to split orders into small parcels to stay under $800, that plan is dead.

Step 11: Keep records for five years and watch for liquidation

Customs clearance does not end at the port. US importers must keep all records related to an importation for five years from the date of entry: the commercial invoice, packing list, bill of lading, entry summary, proof of payment, classification worksheets, correspondence with the supplier about value, and any certificates or test reports. CBP can audit you years later, and the importer of record bears the burden of proof.

About a year after entry, CBP liquidates the entry, the final computation of duties owed. Most entries liquidate as filed. If CBP disagrees with your classification or value, liquidation is where the additional bill arrives, and you then have 180 days from liquidation to file a protest. Mark the liquidation date in your calendar when your broker confirms it. Importers who discover a problem two years later usually discover it one year too late.

Common clearance mistakes first-time importers make

Booking freight before choosing a broker. The forwarder moves the box. The broker clears it. Engaging the broker after the vessel sails compresses every step that should have happened calmly into the days before arrival.

Letting the supplier pick the HS code. Some suppliers will happily suggest a code, and it is often the one with the lowest duty rate rather than the correct one. The liability is yours. Verify independently.

Declaring a value that does not match reality. The price on the invoice must be the price actually paid or payable, plus additions like assists, packing costs, and royalties where the rules require them. Discounts, rebates, and related-party pricing need proper treatment, not creative treatment.

Ignoring partner agencies. A shipment of children's toys with perfect customs paperwork still gets held if the CPSC requirements were never addressed. Map every agency that touches your product category during sourcing, not at the port.

Treating the entry summary as the broker's problem. Your broker files it, but you carry the liability. Review the 7501 data, confirm the value and classification, and keep your own copy.

Forgetting the calendar. ISF 24 hours before loading. Entry documents within 15 days of arrival. Entry summary and estimated duties within 10 working days of release. Records for five years. Protest within 180 days of liquidation. Miss one and the fees start compounding.

What to do before your next shipment from China

Customs clearance rewards preparation and punishes improvisation. Confirm your importer of record setup and bond before production finishes, lock the HS classification with written reasoning while the product is still being made, confirm in writing who files the ISF before the vessel loads, deliver a complete and consistent document package to your broker ahead of arrival, budget the full landed cost including Section 301 duties and all fees, and keep every record for five years with the liquidation date in your calendar.

A sourcing agent can take several of these headaches off your plate before the goods ever reach the port. CN Ally verifies suppliers, confirms product specifications and labeling during production, and makes sure export documentation is complete and consistent so your broker receives a clean package. If you are planning your first import from China, reach out at hi@cnally.com and we will help you get the shipment set up right from the factory floor.

Frequently asked questions

Do I need a customs broker to import from China?

Legally you can self-file in the United States, but it is rarely wise for a first-time importer. The ACE filing system, classification rules, valuation requirements, and agency regulations assume professional knowledge, and errors carry penalties that land on the importer of record. A licensed broker typically charges a few hundred dollars per entry, which is inexpensive insurance against one misclassification or one missed ISF deadline. Engage the broker before the goods leave China so documents can be reviewed without time pressure.

What documents do I need for customs clearance from China?

At minimum: the commercial invoice, packing list, and bill of lading. Most shipments also need a certificate of origin, and regulated products need compliance documents such as test reports, FCC grants, or FDA registrations. The critical discipline is consistency. Names, addresses, quantities, values, and product descriptions must match across every document, because discrepancies between the invoice, packing list, and entry data are one of the most common reasons shipments get flagged.

How much does customs clearance cost?

Beyond the duty itself, budget for the Merchandise Processing Fee (0.3464% of entered value, minimum $33.58 and maximum $651.50 per formal entry for FY 2026), the Harbor Maintenance Fee of 0.125% on ocean shipments, broker fees of a few hundred dollars per entry, and potential examination and terminal handling charges. For China-origin goods, Section 301 additional duties usually dominate the total, so verify the current rate for your HTS code before every shipment.

What is the difference between a single entry bond and a continuous bond?

A single entry bond covers one shipment and is sized around the entered value plus duties, taxes, and fees for that shipment. It suits occasional importers. A continuous bond covers all your shipments for a year at every US port, with a minimum amount of $50,000 or 10 percent of the duties, taxes, and fees paid in the previous year, whichever is greater. Once you import regularly, the continuous bond is almost always cheaper per shipment.

Can CBP seize my shipment from China?

Yes, in serious cases. Seizure typically follows findings of counterfeit goods, prohibited products, gross undervaluation or fraud, or undeclared restricted merchandise. Ordinary first-time importers do not face seizure for paperwork mistakes; those lead to examinations, delays, storage fees, and penalties instead. The line between a mistake and fraud is intent and pattern, which is another reason to keep clean records and declare accurate values from the first shipment.

Does the $800 duty-free de minimis threshold still apply to China imports?

No. The United States ended duty-free de minimis treatment for goods from China and Hong Kong on May 2, 2025, suspended it for all countries effective August 29, 2025, and will repeal the underlying statute effective July 1, 2027. Every commercial shipment is now dutiable regardless of value, and low-value shipments must be entered through ACE with proper HTS classification.