FTZ vs Bonded Warehouse: The Difference Between a Free Trade Zone and a Customs Bonded Warehouse

Choosing the right warehouse type is a critical decision for companies involved in international trade, especially those importing high volumes of goods. Among the most strategic storage options are bonded warehouses and Foreign Trade Zone (FTZ) warehouses. Both let you hold imported goods without paying duty on arrival, but they run under different laws, allow different work on the goods, and calculate the duty you eventually pay in different ways.

This article explains the differences between the two, puts them side by side in one table, and outlines how to decide which is the better fit for your logistics needs. The rules below link to the U.S. Customs and Border Protection (CBP) regulations, the statutes and the Foreign-Trade Zones Board pages they come from.

FTZ vs Bonded Warehouse at a Glance

Sources for each row are linked in the sections below.

What Is a Bonded Warehouse?

A bonded warehouse is a secure storage facility authorized by customs authorities where imported goods can be stored without the immediate payment of duty or import taxes. In the United States, merchandise can stay in a bonded warehouse for up to five years from the date of importation, or longer if CBP grants an extension (19 CFR 144.5). This allows companies to postpone paying duty until goods are formally cleared for domestic sale, or to skip it entirely when goods are withdrawn for export (19 U.S.C. 1557). For the short definition, see our glossary entry on the bonded warehouse.

Bonded warehouses are especially useful for businesses that import goods in bulk but don’t immediately sell them or plan to re-export them. They provide breathing room for managing inventory, controlling cash flow, and complying with regulations.

Key Features

• Goods are stored under the control of U.S. Customs and Border Protection.
• Duties are only paid when the goods are removed for domestic use, at the duty rate in effect on the day of withdrawal, not the day they arrived (19 CFR 141.69).
• Items can be cleaned, sorted, repacked or otherwise changed in condition, but not manufactured, under a CBP permit filed on Customs Form 3499 (19 CFR 19.11).
• Any dutiable merchandise can be warehoused except perishables and explosives, and dangerous or highly flammable goods need the warehouse insurer’s written consent (19 CFR 144.1).
• Useful for seasonal products, high-value imports, or goods pending re-export.

Types of Bonded Warehouses

CBP sorts customs warehouses into ten classes, numbered 1 to 11 with Class 10 reserved (19 CFR 19.1). The classes most relevant to importers:

• Class 2, private bonded warehouses: used only for merchandise belonging or consigned to the proprietor.
• Class 3, public bonded warehouses: used only for storing imported merchandise, open to multiple importers.
• Class 4, bonded yards, sheds and tanks: for heavy and bulky goods, animals, and liquids in bulk.
• Class 6, manufacturing warehouses: for manufacturing in bond, solely for export, from imported materials.
• Class 8, manipulation warehouses: for cleaning, sorting, repacking or otherwise changing the condition of imported goods, but not manufacturing them.
• Class 9, duty-free stores: selling conditionally duty-free goods to travelers leaving the country.

Bonded warehouse providers are usually located near ports, airports, or inland customs zones, chosen to minimize transport costs and streamline customs interactions. If you need a provider, our bonded warehouse 3PL directory lists fulfillment companies with bonded capability.

Bonded Warehouse Requirements

Operating a customs bonded warehouse involves meeting strict criteria established by CBP. These bonded warehouse requirements include:

• A written application to the nearest CBP port director describing the premises and stating the class of warehouse requested (19 CFR 19.2).
• A continuous custodial bond, under which the proprietor agrees to act as custodian of bonded merchandise and keep the records CBP requires (19 CFR 113.63).
• An inventory control and recordkeeping system that accounts for all merchandise received, stored, manipulated and withdrawn (19 CFR 19.12).
• Physical security that meets the CBP port director’s approval (19 CFR 19.2), and CBP supervision through periodic audits of the proprietor’s records, inventory counts and spot checks (19 CFR 19.4).

The bonded warehouse proprietor is responsible for ensuring full compliance with all regulations, including the safekeeping and accurate reporting of the stored merchandise. CBP publishes a Bonded Warehouse Manual for proprietors that walks through the procedures.

What Is a Foreign Trade Zone (FTZ)?

A Foreign Trade Zone (FTZ) is a secure area under CBP supervision, located in or near a U.S. port of entry, that is generally treated as outside U.S. customs territory once it is activated. CBP describes FTZs as the United States’ version of what are known internationally as free trade zones (CBP). The zones are authorized by the Foreign-Trade Zones Board, which is made up of the Secretary of Commerce and the Secretary of the Treasury (FTZ Board). Our glossary has a short definition of a foreign trade zone.

In FTZs, businesses can store imported goods, manufacture products, or perform other value-added processes without immediate duty obligations. By law, foreign and domestic merchandise can be brought into a zone and stored, sold, exhibited, broken up, repacked, assembled, distributed, sorted, graded, cleaned, mixed, or otherwise manipulated, then exported, destroyed, or sent into the U.S. market (19 U.S.C. 81c). No retail trade of foreign merchandise may be conducted in a zone, although goods can be stored, examined, sampled and exhibited there (CBP).

Unlike bonded warehouses, FTZs offer more flexibility in operations and are generally favored by businesses engaged in complex assembly, long-term storage, or high-frequency exports.

Core Benefits

• No time limit: merchandise may remain in a zone indefinitely, whether or not it is subject to duty (CBP).
• No duty on re-exported goods, and no duty on foreign components that become scrap or waste in production (FTZ Board).
• Deferred duty on goods sold into the U.S. market. When foreign components are made into a finished product under FTZ Board production authority, the importer generally has the choice of paying the rate on the components or on the finished product, subject to the privileged foreign status requirements described below (CBP; 15 CFR 400.14).
• Foreign goods, and domestic goods held for export, are exempt from state and local inventory taxes (FTZ Board).
• Streamlined customs procedures such as weekly entry and direct delivery (FTZ Board; 19 CFR 146.63; 19 CFR 146.39).

What Is an FTZ Warehouse?

An FTZ warehouse is a warehouse, or a section of one, that sits inside an activated foreign trade zone site. The building looks like any other distribution center. What changes is the paperwork: goods are admitted in zone status instead of being entered into U.S. commerce, and a formal customs entry with duty payment is made only when goods ship from the zone to the U.S. market (FTZ Board).

FTZ warehouse space comes in two forms (FTZ Board):

• Magnet sites: usually at ports or industrial parks and open to multiple zone operators. A 3PL running an FTZ warehouse on a magnet site can serve several importers.
• Subzones and usage-driven sites: approved for one company or use. Under the alternative site framework, a usage-driven site can be approved within 30 days using a simple application.

Zones are sponsored by public or private corporations that either operate the facilities themselves or contract the operation out, on a public utility basis with published rates (CBP). The FTZ Board reported 260 approved FTZs in 2024, 199 of them active (FTZ Board Annual Report 2024).

FTZ Warehouse Requirements

• Zone status from the FTZ Board, usually through the local zone grantee.
• Activation by CBP: the operator applies in writing to the port director with a description of the site, the planned operations and the general character of the merchandise, plus a blueprint of the area (19 CFR 146.6).
• A continuous foreign trade zone operator bond (19 CFR 113.73).
• An operator who supervises all admissions, transfers, removals, recordkeeping and security in the zone, and maintains the inventory control and recordkeeping system (19 CFR 146.4).
• Advance FTZ Board authorization before any production activity involving foreign-status components (15 CFR 400.14).

Bonded Warehouse vs FTZ: What’s the Difference?

While both warehouse types help manage duty exposure and simplify storage, the operational and regulatory frameworks are quite different.

When the Duty Rate Is Set

This difference matters most when a duty rate changes while goods are in storage. Goods in a bonded warehouse are dutiable at the rate in effect when they are withdrawn for consumption (19 CFR 141.69). If a rate rises while your goods sit in bond, you pay the higher rate. If it falls, you pay the lower one.

In an FTZ you choose a status. Goods admitted in privileged foreign status are classified at the rate in force on the date you applied for that status, and that status cannot be abandoned later. Goods in nonprivileged foreign status are classified in their condition when they leave the zone (19 CFR 146.65; 19 CFR 146.41).

Inverted Tariffs

Because nonprivileged goods are classified as they leave, an FTZ user with FTZ Board production authority that assembles components into a finished product can generally pay the finished product’s rate on the foreign components when it is lower (FTZ Board). That assembly route is not open in a bonded warehouse, where manufacturing is limited to Class 6 warehouses producing for export and Class 7 smelting and refining (19 CFR 19.1).

There are limits. The FTZ Board requires privileged foreign status for goods subject to antidumping or countervailing duties, and U.S. actions under Section 232 of the Trade Expansion Act of 1962 and Sections 201 or 301 of the Trade Act of 1974 have required privileged foreign status for the goods they cover (FTZ Board). For tariff planning beyond the choice of warehouse, see our guide on 3PL strategies for tariffs.

Domestic Goods and Mixed Inventory

An FTZ can hold U.S.-made goods and duty-paid imports in domestic status alongside foreign goods, and domestic-status goods can go back into U.S. commerce with no duty (19 CFR 146.43). A bonded warehouse entry is for imported merchandise subject to duty (19 CFR 144.1).

Why Choose One Over the Other?

When to Use a Bonded Warehouse

Use a bonded warehouse if:

• You need to hold imported goods for months or a few years, within the five-year limit, before selling or exporting them
• You're importing high-duty goods and want to defer duty until they sell
• You may re-export your products and want to avoid paying U.S. duty on them
• Your goods only need storage, cleaning, sorting or repacking, not assembly
• You ship through major ports and want fast access to inventory

We'll match you with 3PLs who have bonded capabilities and specialize in your industry, such as apparel, electronics or furniture.

When to Use an FTZ

Use an FTZ if:

• You want to assemble, repackage, or modify goods before selling
• You want to hold goods longer than five years, or with no fixed end date
• You carry high inventory values and want relief from state and local inventory taxes
• You want to lock in a duty rate through privileged foreign status
• You move enough volume that weekly entry saves filing work

We'll connect you with FTZ-savvy providers who know how to optimize workflows from import to last-mile delivery.

Using a 3PL for FTZ or Bonded Storage

You do not have to run your own zone or bonded facility. You can use a 3PL or freight forwarder that already holds the bond, the CBP approvals and the recordkeeping system, and pair it with a licensed customs broker who files the entries. Some global forwarders, such as Kuehne+Nagel, list both warehousing and customs clearance among their U.S. services, so storage and entries can sit with one provider. Ask any provider whether the specific site you would use is an activated FTZ site or a bonded warehouse.

Before you sign, ask the provider:

• Is the space an activated FTZ site or a bonded warehouse, and which class of bonded warehouse is it?
• Who is the zone operator or bonded proprietor of record, and who files the entries?
• Can the system report inventory by zone status (privileged foreign, nonprivileged foreign, domestic)?
• Does the provider also handle duty drawback for goods you import, pay duty on and later export?

FTZ vs Bonded Warehouse FAQ

How many FTZs are in the US?

The FTZ Board reported 260 approved foreign trade zones in 2024. Of those, 199 were active (at least one site or subzone in operation), with about 1,300 active FTZ operations (FTZ Board Annual Report 2024).

What does "FTZ warehouse" mean?

It is a warehouse inside an activated foreign trade zone site, where goods are admitted in zone status and duty is paid only when they ship into the U.S. market (FTZ Board).

Why would you use a bonded warehouse instead of an FTZ?

A bonded warehouse suits goods that only need storage or light repacking before sale or export, with a known exit date inside five years. If you are setting up your own facility, it also skips the FTZ Board designation and CBP activation process an FTZ site needs.

Is a free trade zone the same as a foreign trade zone?

In the U.S. the legal term is foreign trade zone. CBP describes FTZs as the U.S. version of what other countries call free trade zones (CBP).

Can you manufacture in a bonded warehouse?

Generally no. Manufacturing in bond happens in Class 6 warehouses, solely for export (cigars made wholly of tobacco imported from one country may also be made for sale in the U.S.), and Class 7 warehouses smelt and refine imported metal-bearing materials. Class 8 warehouses can clean, sort and repack goods but not manufacture them (19 CFR 19.1). Production in an FTZ needs FTZ Board authorization (15 CFR 400.14).

Find a Bonded or FTZ Provider

There's no one-size-fits-all answer. But with Fulfill.com, you don't have to make the decision alone.

Whether bonded warehousing or FTZ access is right for your business, we'll guide you to the logistics partners who can execute it efficiently, cost-effectively, and at scale across warehouse locations in key markets.

Fulfill.com isn't just a directory. We're a matchmaker for smarter fulfillment. If you're trying to navigate international trade and don't want to waste weeks figuring out which 3PL can handle short-term storage, duty drawback, or the paperwork required by customs officials, we'll do the heavy lifting for you.

Let us connect you with fulfillment partners who already know how to work with bonded warehouses and FTZs, whether you need air freight, road freight, or freight forwarding for your domestic merchandise or imported goods.