How long will Customs take to clear my shipment?
It’s one of the first questions every importer asks—and one of the hardest to answer with a single number.
The truth is that customs clearance can take just a few hours for one shipment and several days—or even longer—for another. The difference often comes down to documentation, the type of goods you’re importing, and whether U.S. Customs and Border Protection (CBP) selects your shipment for examination.
Many importers assume delays are simply part of international shipping. In practice, some delays are unavoidable, while many others you can prevent with proper planning and accurate documentation.
Understanding what affects customs clearance helps you better plan inventory, manage customer expectations, and reduce costly disruptions to your supply chain.
In this guide, we’ll explain how the customs clearance process works, what factors influence release times, and what you can do to give your shipment the best chance of moving through Customs efficiently.
Quick Answer
For properly documented shipments not selected for examination, CBP typically authorizes release within a few hours of entry transmission. If CBP selects a shipment for examination, expect approximately one business day for a Document Review, one to three days for a Tailgate Exam, and several days plus additional port fees for an Intensive Devanning Exam. Incomplete documentation is the most common cause of preventable delays.
What Is Customs Clearance?
Customs clearance is the process by which U.S. Customs and Border Protection (CBP) reviews imported merchandise before allowing it to legally enter the United States.
Before releasing your shipment, CBP verifies: The imported goods have been properly declared Customs duties and applicable fees have been calculated correctly
Required documentation is complete Government agency requirements have been met The shipment complies with U.S. import laws
Only after completing this review does CBP release your cargo for delivery.
How Long Does Customs Clearance Usually Take?
There is no guaranteed timeline because every shipment is different. However, most shipments fall into one of three categories.
Routine Customs Clearance: Often Within Hours
For shipments with: Complete documentation Accurate customs entries
Proper product descriptions Correct HTS classifications No regulatory issues
CBP often authorizes release within a few hours after the customs entry is successfully transmitted.
This is the ideal scenario. Unfortunately, not every shipment qualifies.
Why Some Shipments Are Delayed Before They’re Even Reviewed
One of the most common causes of customs delays isn’t a Customs inspection. It’s incomplete paperwork. Even small documentation errors can stop the clearance process.
Examples include: Incorrect invoice values Missing country of origin information
Inconsistent quantities Vague product descriptions Missing Certificates of Origin
Incorrect Harmonized Tariff Schedule (HTS) classifications Missing regulatory permits Most of these issues can be identified before the shipment arrives.
That’s why experienced customs brokers carefully review documentation before filing the customs entry.
What Happens If CBP Selects Your Shipment for Examination?
Not every shipment is physically inspected.
However, when CBP determines an examination is appropriate, additional time expect.
The amount of time depends on the type of examination performed.
Document Review
This is often the least disruptive type of examination.
Instead of inspecting the cargo itself, CBP requests additional documentation or clarification.
Examples include: Commercial invoices Certificates of Origin
Product specifications Regulatory permits Manufacturer information
If your documents are organized and readily available, these requests can often be resolved within one business day.
Tailgate Examination
During a Tailgate Exam, Customs officers inspect the shipment without completely unloading the container.
Inspectors may: Verify cargo descriptions Compare documents to the shipment
Check container integrity Confirm package markings
Although relatively straightforward, Tailgate Exams can still add one to several days to the clearance process depending on port operations and scheduling.
Intensive Examination (Devanning)
An Intensive Examination—often called a Devanning Exam—is the most comprehensive type of Customs inspection.
The container is moved to an examination facility where the cargo is unloaded for a detailed inspection.
CBP may: Open cartons Inspect individual products
Verify classifications Examine labels Confirm country of origin markings
Compare physical merchandise against documentation
Because the container must be unloaded and later reloaded, this process generally takes longer than other examination types.
It may also generate additional costs, including: Examination fees Container handling charges
Demurrage Detention Storage fees
For importers, this can become one of the most expensive types of Customs inspection.
Why Does CBP Select Some Shipments for Examination?
This is perhaps the most misunderstood part of importing.
Many businesses believe customs brokers, freight forwarders, or shipping companies decide which shipments are inspected.
They don’t.
Only U.S. Customs and Border Protection determines whether a shipment will be examined.
CBP uses sophisticated risk assessment systems that evaluate numerous factors before selecting cargo for inspection.
Factors That May Influence Examination Decisions
While the exact targeting process is not public, several factors may contribute to CBP’s overall risk assessment, including:
Type of merchandise Country of origin First-time importer status
Commodity risk Incomplete documentation Inconsistent shipment information
Prior compliance history Security considerations Regulatory requirements
Each shipment is evaluated individually.
Even companies with excellent compliance histories may occasionally experience Customs examinations.
Does C-TPAT Help?
Businesses participating in secure supply chain programs may experience operational benefits.
For example, companies working with C-TPAT-certified logistics providers often benefit from stronger supply chain security practices.
Because CBP considers many factors when evaluating risk, trusted trade partnerships can contribute to a more secure and efficient import process.
However, keep in mind: C-TPAT certification does not guarantee that a shipment will avoid examination. CBP retains complete discretion over every inspection decision.
What Importers Can Actually Control
Although no one can control whether Customs selects a shipment for examination, importers have significant influence over the quality of the information submitted to CBP.
The best way to reduce avoidable delays is to ensure every shipment is supported by complete, accurate documentation.
That includes: Detailed commercial invoices Correct HTS classifications
Accurate customs values Proper country of origin declarations Complete packing lists
Timely Importer Security Filings (ISF) for ocean shipments Required regulatory permits Consistent information across every document
Preparation cannot eliminate inspections—but it can eliminate many preventable delays.
Common Reasons Customs Clearance Takes Longer
Some of the most frequent causes of delays include: Missing commercial invoices Incorrect product descriptions
Missing Certificates of Origin Incomplete ISF filings Incorrect HTS classifications
FDA or USDA documentation issues Outstanding duties or fees Examination facility congestion
Port congestion Weather disruptions Many of these issues have nothing to do with Customs enforcement itself.
Instead, they stem from documentation or logistics problems that can often be prevented through careful planning.
Tips to Speed Up Customs Clearance
While no importer can guarantee immediate release, several best practices can improve the likelihood of efficient processing:
Review documentation before shipping Use detailed product descriptions Verify HTS classifications
Confirm customs values File Importer Security Filings on time Maintain complete import records
Work with experienced customs professionals Communicate with suppliers before cargo departs
Proactive preparation almost always costs less than resolving problems after the shipment reaches the port.
Frequently Asked Questions
How fast can Customs clear a shipment? For properly documented shipments that are not selected for examination, CBP may authorize release within a few hours after entry submission.
Can my customs broker speed up Customs inspections? No. Customs brokers help prepare accurate entries and reduce avoidable documentation problems, but they cannot influence whether CBP selects a shipment for examination.
Does C-TPAT guarantee faster clearance? No. While C-TPAT participation may support more efficient supply chain operations and contribute to CBP’s overall risk assessment, it does not guarantee faster release or eliminate Customs inspections.
What causes the biggest Customs delays? The most common causes include incomplete documentation, inaccurate product descriptions, incorrect classifications, missing permits, and Customs examinations.
Better Preparation Leads to Faster Clearance
Although no importer can control every aspect of the customs clearance process, careful preparation goes a long way toward reducing delays. Accurate documentation, consistent product information, timely filings, and strong compliance practices help CBP process shipments more efficiently while minimizing avoidable disruptions.
At ACE Group, we believe the best way to speed up customs clearance is to prevent problems before your shipment reaches the port. Our licensed customs professionals review documentation, verify classifications, and identify potential compliance issues before entries are transmitted to U.S. Customs and Border Protection.
While no customs broker can guarantee that CBP will not inspect a shipment, proactive preparation can significantly reduce the likelihood of delays caused by documentation errors or incomplete filings.
If you’d like to improve your customs clearance process or review your current import procedures, contact ACE Group today. We’ll evaluate your documentation practices, discuss your import profile, and help identify opportunities to make your customs clearance process as efficient and predictable as possible.
Important Notice
The information in this article is provided for general educational purposes only and does not constitute legal advice. ACE Group is a licensed customs broker, not a law firm. For matters involving potential penalties, enforcement actions, compliance concerns with legal consequences, or any question that requires legal guidance, ACE Group recommends consulting with a qualified customs and international trade attorney. ACE Group works in conjunction with legal counsel on all matters requiring legal representation.