INTERNATIONAL TRADE LAW
Importing 101: How U.S. Customs Clearance Works
Importing into the United States means clearing your goods through U.S. Customs and Border Protection — and the law puts the responsibility for doing it correctly on you, the importer of record, not on your broker or your supplier. At its core, importing is a sequence: classify the goods, file an entry, pay the duties, and keep records — all under a legal duty of reasonable care. This guide walks the essentials every new importer needs: who’s responsible, the entry process, the documents, bonds, and how duties are figured.
It’s the starting point for the deeper topics — classifying your goods, the importer of record role, and import documentation.
Who’s Responsible: The Importer of Record
The importer of record (IOR) is the party legally responsible for ensuring imported goods comply with the law — correctly classified and valued, with duties paid and proper documentation filed. The IOR owes CBP a duty of reasonable care under 19 U.S.C. § 1484, and that responsibility doesn’t transfer to a customs broker you hire. The broker can file on your behalf, but the legal accountability stays with you.
The Entry Process
Clearing goods is a two-stage filing:
- Entry (release). After arrival, the entry documents are filed so CBP can decide whether to release the goods — typically the entry (CBP Form 3461), the commercial invoice, and shipping documents.
- Entry summary (CBP Form 7501). Within 10 working days of release, you file the entry summary confirming the final classification, value, and duty calculation, and pay the estimated duties.
For ocean shipments, an Importer Security Filing (ISF, “10+2”) must also be filed before the goods are laden abroad.
The Documents You’ll Need
| Document | Purpose |
|---|---|
| Commercial invoice | Describes the goods, value, quantity, and origin; basis for duties |
| Packing list | Itemizes the shipment contents |
| Bill of lading / air waybill | The carrier’s transport document |
| CBP Form 3461 | The entry (release) filing |
| CBP Form 7501 | The entry summary (duties, final classification) |
More detail is in our guide to handling import documentation.
Customs Bonds and Duties
Commercial imports valued over $2,500 require an importer of record number and a customs bond — either a single-entry bond for one shipment or a continuous bond covering all entries for a year (usually cheaper for regular importers). Duties are calculated from the goods’ classification (the HTS code), their customs value, and their country of origin. Getting the classification right is where importers most often go wrong, so it’s worth real attention.
Reasonable Care: The Standard Behind It All
The recurring theme is reasonable care. CBP doesn’t expect perfection, but it does expect importers to take meaningful steps to get classification, valuation, and origin right — using qualified people, written procedures, and binding rulings when unsure. A documented reasonable-care effort is also your best protection if CBP later questions an entry. Mistakes can lead to a Request for Information (CBP Form 28), additional duties, or penalties.
Frequently Asked Questions
What is the importer of record?
The importer of record is the party legally responsible for an import — ensuring the goods are correctly classified and valued, duties are paid, and proper documents are filed, all under a duty of reasonable care. The responsibility stays with the importer even when a customs broker files the paperwork.
What documents are needed to import into the U.S.?
Typically a commercial invoice, packing list, bill of lading or air waybill, the entry (CBP Form 3461), and the entry summary (CBP Form 7501). Ocean shipments also require an Importer Security Filing (ISF) before loading.
Do I need a customs bond to import?
Yes for commercial shipments valued over $2,500, which require an importer of record number and a customs bond — either a single-entry bond or a continuous bond covering a year of imports. The bond guarantees payment of duties and compliance.
How are import duties calculated?
From three things: the goods’ HTS classification, their customs value, and their country of origin. The classification determines the duty rate, which is why accurate classification under reasonable care is so important.
Importing rewards getting the fundamentals right and punishes guessing. Reidel Law Firm helps importers build compliant entry, classification, and reasonable-care practices on flat-fee terms. Get an import compliance memo.
