It is one of the most common questions importers ask, and the honest answer is that it depends on several factors that are largely within your control. For a well-prepared shipment with accurate documentation and no compliance flags, customs clearance in the United States can be immediate or a few days depending on the specific shipment.
Understanding what drives the variation is what helps importers plan more effectively and avoid the delays that come with poor preparation.
The Basic Customs Clearance Process
Every commercial import entering the United States goes through a standard sequence before CBP releases the cargo. For ocean shipments, it begins before the vessel even departs the origin port. The Importer Security Filing, commonly called the ISF or 10+2, must be submitted to CBP at least 24 hours before cargo is loaded onto the vessel. Missing that deadline may trigger a penalty of up to $5,000 per violation and can result in a cargo hold on arrival.
Once the shipment arrives, the customs broker or importer files the entry along with the required documentation such as the commercial invoice, packing list, bill of lading, and any applicable certificates or permits. CBP assesses duties and taxes based on the declared value, HTS classification, and country of origin. If everything is in order, CBP issues a release.
For air freight, the process is similar but compressed. Pre-arrival filing is common, meaning CBP can process the entry while the aircraft is still in transit and release cargo almost immediately upon landing.
What Causes Delays
Most customs delays trace back to a small number of preventable issues.
Documentation errors are the most frequent cause. Discrepancies between the commercial invoice, packing list, and bill of lading are a common trigger for holds. If the declared value, quantity, or product description does not align across documents, CBP flags the entry for review.
CBP examinations add time regardless of how well-prepared the shipment is. CBP uses a risk-based targeting system that selects shipments for exam based on factors including importer history, commodity type, country of origin, and compliance record. In 2025, approximately 2 to 3 percent of shipments were selected for examination, but those that were selected saw average delays of around seven days. X-ray examinations are the quickest, typically adding one to two days. Physical exams, where cargo is unloaded and inspected, take considerably longer and generate additional fees at the examination facility.
Additional agency reviews add another layer for regulated products. Food, beverages, pharmaceuticals, medical devices, and agricultural products all require clearance from agencies like the FDA or USDA in addition to CBP. These reviews run concurrently with the customs process but can extend timelines, particularly if documentation is incomplete.
Importer history matters too. First-time importers and non-resident importers face more scrutiny than established accounts with a clean compliance record.
What a CBP Release Actually Means
One important point that catches many importers off guard: a CBP release is not the same as having your cargo. After CBP releases the entry, the port terminal must also issue its own release, and the steamship line must issue a freight release confirming that any outstanding charges have been settled. All three must happen before a drayage truck can pick up the container. This is why drayage coordination needs to be lined up before the vessel arrives rather than after CBP clears the entry.
How to Keep Clearance as Fast as Possible
The single most effective step is pre-arrival filing. A licensed customs broker can submit the entry documentation before the vessel or aircraft arrives, so CBP can process it in advance. When the cargo lands and there are no holds, it can be released almost immediately rather than waiting for documentation to be reviewed after arrival.
Beyond that, accuracy in the ISF and entry documents is everything. Correct HTS classification, consistent values across all documents, and having any required agency permits ready before the shipment moves are the factors that most consistently separate fast clearances from slow ones.
Jade International’s customs brokerage team manages ISF filing, entry preparation, and CBP communication for importers across all modes and trade lanes. If you want clearance handled correctly from the start, reach out to our team before your next shipment moves
