A Step-by-Step Guide to Customs Clearance When Moving to the USA

Moving to the United States involves more than packing boxes and booking a shipping service. Customs clearance is a defined, non-negotiable step in the process, and how well you prepare for it often determines whether your shipment arrives on schedule or sits in a bonded warehouse waiting for paperwork to catch up. Misunderstanding the requirements can lead to delays, unexpected duties, or items being held for further examination. Getting it right starts with knowing what to expect before your shipment leaves the ground. For a full overview of how the inbound move process works from origin to delivery, see our guide to moving to the USA with household goods.

This guide walks you through the customs clearance process step by step, covering required paperwork, duties and taxes, prohibited and restricted items, and what to expect during inspection. It is written specifically for people relocating to the USA with household goods, not for commercial importers or single-item shipments.

Step 1: Gather the Necessary Customs Documents

Documentation is the foundation of a smooth customs clearance. Every document in your file needs to be accurate, complete, and consistent with the others. A single discrepancy between your inventory, your declaration, and your identity documents can trigger a hold that adds days or weeks to your delivery timeline. Here is what you will typically need:

• Customs Form 3299 (Declaration for Free Entry of Unaccompanied Articles) – Required for duty-free entry of used personal belongings. This form must be completed accurately and signed before submission.
• Valid passport and visa or immigration documentation – Proof of your legal status in the United States. Names must match exactly across all documents in your file.
• Bill of Lading or Airway Bill – Issued by your shipping provider, this document identifies your shipment, its origin, and its destination.
• Packing list and inventory – A detailed list of all shipped items, organized by room or carton, with clear plain-language descriptions and estimated values. Vague descriptions slow clearance.
• Power of Attorney (if applicable) – If your moving company is handling customs clearance on your behalf, this document authorizes them to act as your agent with CBP.
• Purchase receipts for new items – If any goods in your shipment are new or recently purchased, customs may request proof of purchase to assess applicable duties.
• Pet import documents (if applicable) – Vaccination records, health certificates, and import permits for any animals traveling as part of your relocation.

Keep copies of every document and store them somewhere accessible during transit. Your destination agent will need these at the port, and having duplicates prevents delays if originals are misplaced.

Step 2: Understand Duties, Taxes, and Fees

Most household goods relocations to the USA qualify for duty-free entry, but the conditions matter and they are strictly applied. Understanding what qualifies and what does not will prevent surprises at the port.

• Used household goods and personal effects owned for at least one year before your move are generally eligible for duty-free entry. This is the standard classification for most household relocations.
• Brand new items, particularly those still in original packaging, may be subject to import duties regardless of their intended personal use.
• Alcohol, tobacco, and vehicles are treated separately and may require additional taxes, permits, or inspections independent of your household goods shipment.
• High-value items such as jewelry, fine art, and collectibles may need to be declared separately with supporting documentation and valuations.
• State-specific rules: Certain U.S. states impose additional requirements on items such as alcohol, motor vehicles, and luxury goods. If you are moving to California, New York, or Texas, check state-level regulations in addition to federal customs requirements.

For broader context on what to expect from U.S. customs requirements, our international customs regulations guide covers the full process in detail.

Step 3: Know What Items Are Prohibited or Restricted

U.S. Customs and Border Protection maintains strict controls on what can and cannot enter the country. Prohibited items will be seized. Restricted items require specific documentation or permits that must be arranged before shipping. Discovering either category during inspection is one of the most common causes of shipment holds.

Prohibited Items

• Firearms and ammunition without proper permits and import authorization
• Illegal drugs and controlled substances
• Counterfeit goods of any kind
• Fresh fruits, vegetables, and certain plant materials
• Meat and dairy products from regions subject to import restrictions
• Endangered species and products derived from them, including ivory, certain exotic woods, and animal skins
• Cultural artifacts and antiquities without proper export documentation from the country of origin
• Items containing hazardous materials, including certain batteries, flammable liquids, and chemicals
• Used mattresses, which are subject to sanitation regulations and generally cannot be imported

Restricted Items That Require Special Documentation or Permits

• Alcohol: import limits apply and state restrictions may also govern quantity and type
• Tobacco products: limited quantities are allowed but are subject to applicable taxes
• Prescription medications: must be FDA-approved and accompanied by a valid prescription
• Pets: subject to vaccination requirements, health certificates, and in some cases quarantine depending on country of origin
• Vehicles: must comply with U.S. emissions and safety standards and be accompanied by full ownership and registration documentation
• Agricultural equipment: must be free of soil and organic materials to prevent the introduction of pests or disease
• Drones and certain electronics: subject to FCC regulations and may require prior approval

If you are unsure whether a specific item qualifies as prohibited or restricted, check directly with U.S. Customs and Border Protection before packing it. It is significantly easier to leave an item behind than to deal with a hold or seizure after the shipment has arrived.

Step 4: Prepare for the Customs Inspection Process

Once your shipment arrives at a U.S. port of entry, it enters the customs review process. Not every shipment is physically inspected, but every shipment is documentarily reviewed. Understanding how this works helps you set realistic expectations for your delivery timeline.

The process typically unfolds in this sequence: your destination agent submits your documentation to CBP, customs reviews the file and determines whether to release the shipment directly or select it for physical inspection. If selected, the shipment is moved to a bonded facility where it is opened, spot-checked against the inventory, resealed, and returned to the clearance queue. Once released, delivery can be scheduled.

Physical inspections are routine and do not indicate that something is wrong. Shipments that are well packed, clearly labeled, and supported by accurate inventories move through inspections efficiently. Shipments with vague descriptions, inconsistent documentation, or undeclared items are more likely to be held for extended review. Professional packing and inventory services are one of the most reliable ways to reduce inspection risk and keep your move on schedule.

Step 5: Work with an Experienced Overseas Moving Company

Customs clearance is manageable when you understand the process, but it is easy to underestimate the coordination required across documentation, packing, transport, and port handling. Working with a company that has handled inbound U.S. moves before means the details are managed proactively rather than reactively.

An experienced overseas moving company coordinating your inbound USA move will handle documentation preparation and submission, ensure packing and labeling meet CBP standards, manage customs brokerage and clearance on your behalf, arrange storage if your shipment is held or if your delivery address is not yet ready, and keep you informed at each stage so you are not left guessing about your shipment’s status.

SDC International Shipping is an FMC-licensed overseas moving company with dedicated operations on both the U.S. East and West coasts. We coordinate inbound household moves from Europe, the Middle East, Asia, and Australia, managing the full process from origin pickup through U.S. customs clearance to door-to-door delivery. To understand how we handle the full inbound move process, visit our door-to-door overseas shipping overview.

Six Practical Tips for Avoiding Customs Delays

Use a customs broker or work with a mover who handles clearance. If you are coordinating an inbound move without professional support, a licensed customs broker can guide you through the CBP submission process and represent your shipment at the port.

Double-check all documentation before your shipment is loaded. Errors in your inventory or declaration are far easier to correct before the shipment departs than after it has arrived at a U.S. port.

Label every carton clearly with room and contents. Carton labels that match your inventory reduce the time inspectors spend verifying contents and lower the risk of a detailed physical examination.

Screen your inventory for prohibited items before packing. Review the CBP restricted and prohibited list in advance. A single prohibited item can result in your entire shipment being held while the issue is resolved.

Declare high-value items properly. Attempting to undervalue or omit high-value items from your declaration creates risk at inspection and can affect your insurance coverage if items are damaged or lost.

Build inspection time into your delivery expectations. Even if your shipment is not selected for physical inspection, the documentary review process takes time. Planning for a realistic customs window prevents frustration if release takes longer than expected.

A Smooth Move to the USA Starts with Customs Preparation

Customs clearance is not the obstacle it can appear to be when you approach it with the right preparation. Accurate documentation, a well-organized inventory, and a clear understanding of what can and cannot enter the country are what keep the process predictable. Most delays are avoidable, and most avoidable delays come from gaps in paperwork rather than problems with the goods themselves.

Whether you are returning to the U.S. after years abroad or relocating for the first time, the fundamentals are the same: prepare early, document accurately, and work with people who know the process. When those elements are in place, customs clearance becomes a step in the process rather than an obstacle to it.