INTERNATIONAL TRADE LAW
Customs Clearance: How US Import Release Works
Customs clearance is the process of getting your imported goods released by CBP — filing the entry, paying the duties and taxes owed, and satisfying any other agency that regulates your product. Done right, a routine shipment clears in well under a day. Done carelessly, missing paperwork or an unpaid fee can hold your goods for days and rack up storage costs. This guide walks through the process, the documents you need, and what to do when a shipment is held.
The Customs Clearance Process, Step by Step
Clearing customs follows a predictable sequence:
- A customs officer reviews your entry paperwork. The commercial invoice and entry documents are checked for completeness and accuracy.
- CBP assesses duties and taxes. The amount depends on your HTS classification, the customs value, and the country of origin.
- You pay the duties, taxes, and any fees. Payment is made by you or, more often, through your customs broker.
- CBP releases the shipment. Once duties are paid and any partner-agency requirements are met, the goods are cleared.
- The goods move to their final destination. The carrier delivers to your warehouse or customer.
The most important document at this stage is the commercial invoice, which identifies the parties, the transaction, and the value of the goods. A clean, complete invoice is the single best thing you can do to speed clearance.
How Long Does Customs Clearance Take?
A complete, accurate entry usually clears in under 24 hours. Delays almost always trace back to one of three things: missing or inconsistent documents, an unpaid duty or fee, or a hold by CBP or a partner agency for inspection. The fix is the same in each case — respond fast and provide exactly what the agency asks for.
Documents You Need for Customs Clearance
Being prepared with the right paperwork is what keeps a shipment moving. The essentials are the commercial invoice and a packing list; depending on the product and trade lane, you may also need several of the following:
| Document | Purpose |
|---|---|
| Commercial invoice | Identifies parties, goods, and value — the core entry document |
| Packing list | Itemizes the contents of each carton or container |
| Bill of lading / air waybill | Carrier’s contract and proof of shipment |
| Customs bond (CBP Form 301) | Guarantees duties and penalties will be paid |
| Certificate of origin | Supports country-of-origin and trade-program claims |
| Agency permits or certificates | Required when FDA, USDA, EPA, CPSC, or another agency regulates the product |
A note on small shipments: the Section 321 “de minimis” exemption historically let shipments valued at $800 or less enter duty-free with minimal paperwork. That exemption was suspended for all countries effective August 29, 2025, so as of mid-2026 you should plan on a formal or informal entry — and duties — regardless of shipment value. Confirm the current rule before relying on it, because this area has been changing.
What to Do When a Shipment Is Held
When customs holds a shipment, the goal is simple: find out who is holding it and what they need. Work through these steps:
- Confirm the reason with your broker or the carrier — it is usually missing paperwork, an unpaid fee, or an agency inspection.
- Check that all duties and taxes are paid.
- Supply any additional documents the holding agency requests.
- Escalate quickly if the goods are perishable or time-sensitive.
If CBP detains or seizes the goods rather than simply holding them for paperwork, the stakes rise and deadlines start to run. Our guide on CBP seizures, fines, and penalties explains your options and the response timeline.
Reduce Clearance Problems Before They Start
Most clearance headaches are preventable. The importers who clear fastest do a few things consistently: they classify goods correctly under the HTS, confirm their country of origin before shipping, keep complete and consistent documents, and build an internal process so every shipment is handled the same way. Putting that process in writing is the heart of an import compliance program.
A trade attorney adds value beyond the entry itself — tariff classification, customs valuation, entry review, post-entry audits, and representation in detentions and seizures. See our international trade law practice for the full picture.
Frequently Asked Questions
Are customs documents required for every shipment? Yes. Commercial goods crossing the US border require an entry and supporting documents. Even low-value shipments now generally need an entry after the de minimis exemption was suspended in 2025.
Who pays the import duties? The importer of record is legally responsible for duties and taxes, even when a customs broker or carrier advances the payment.
What is the difference between release and entry summary? Release (CBP Form 3461) lets the goods leave CBP custody; the entry summary (CBP Form 7501), filed within 10 working days, is the official record stating the classification, value, and duties owed.
Can a customs broker handle clearance for me? Yes, and most importers use one. A broker files electronically through CBP’s ACE system, but the legal responsibility for accuracy stays with the importer of record.
Need your shipment cleared the right way? Reidel Law Firm helps importers with classification, documentation, and customs holds through flat-fee import/export compliance work and direct attorney access. Get an import compliance memo →
