A bonded warehouse is a secured storage facility licensed by U.S. Customs and Border Protection (CBP) where imported goods can be stored, manipulated, or manufactured for up to five years without payment of import duties. Duties are deferred until the goods are withdrawn for U.S. consumption. If goods are re-exported without entering U.S. commerce, no duties are owed. See CBP regulations at cbp.gov/trade/programs-administration/bonded-warehouses and 19 CFR Part 19 for the full regulatory framework.
A bonded warehouse enables importers to defer U.S. Customs duties on imported merchandise while maintaining control of the inventory. The warehouse operator must post a surety bond (the bond that gives the facility its name) with CBP guaranteeing payment of duties on any goods that enter U.S. commerce from the warehouse. The bond amount is set by CBP based on the volume of duties that would be owed on a typical month's inventory. Regulatory framework: Bonded warehouses are authorized under 19 CFR Part 19 (see cbp.gov/trade/programs-administration/bonded-warehouses) and classified into eight types: Type 1 (general merchandise), Type 2 (duty-free stores), Type 3 (public bonded), Type 4 (yard/shed for bulky goods), Type 5 (grain elevators), Type 6 (steel manufacturing), Type 7 (FTZ), and Type 8 (trade fair). Each type has specific CBP approval requirements, allowable manipulation activities, and record-keeping obligations. The CBP Port Director for the relevant port of entry approves and oversees bonded warehouses. Duty deferral mechanics: Imported goods enter a bonded warehouse under a CBP Warehouse Entry (CBP Form 7501 with Warehouse Entry designation). No duty is paid at entry. The importer has up to 5 years (from the date of original importation) to either: (1) withdraw the goods for U.S. consumption (paying duties at the rate in effect at the time of withdrawal); (2) transfer to another bonded warehouse; (3) export the goods (no duties owed); or (4) destroy the goods under CBP supervision (no duties owed). Manipulation of goods (repackaging, sorting, labeling) is allowed in Class 3 and Class 4 warehouses subject to CBP approval. Lending against bonded warehouse inventory: Bonded warehouse inventory is a recognized category of inventory collateral for asset-based lenders. The lender takes a UCC-1 security interest in the inventory and typically requires the warehouse operator to acknowledge the lender's security interest via a warehouse receipt or bailee agreement. The key credit consideration: the lender's collateral is 'encumbered' by the deferred duty obligation — if the borrower defaults and the lender sells the inventory into U.S. commerce, the lender must pay the unpaid duties before net proceeds are available. Lenders typically advance against net-of-duty inventory value and account for the duty liability in their advance rate formula. The CBP's FIRMS database (see cbp.gov) identifies licensed bonded warehouse facilities that can be verified in due diligence. Foreign Trade Zones: Foreign Trade Zones (FTZs) operate under a separate framework (19 CFR Part 146) but share the duty-deferral benefit of bonded warehouses. FTZs allow manufacturing within the zone — goods can be substantially transformed, with duties owed only on the finished product classification rather than the input components. The FTZ Board (administrated by the Commerce Department, see trade.gov) approves and oversees FTZs.
Goods may remain in a CBP-licensed bonded warehouse for up to five years from the date of original importation. After five years, the goods must be withdrawn for consumption (duties paid), exported, or destroyed under CBP supervision. Goods remaining beyond the five-year limit are subject to CBP seizure and sale. The five-year period is set under 19 U.S.C. § 1557. See cbp.gov/trade/programs-administration/bonded-warehouses for the current regulatory framework.
The warehouse operator must post a CBP surety bond (a customs bond) under 19 CFR Part 113 guaranteeing payment of duties on all merchandise stored in the facility. The bond amount is set by the CBP Port Director based on estimated annual duty liability. If the warehouse operator fails to account for goods or pay duties, CBP can call the bond and collect from the surety company. The bond requirement is what gives bonded warehouses their name and what makes them a trusted custody structure for import duty deferral. See cbp.gov for bonded warehouse licensing requirements.
Yes — small importers can store goods in third-party public bonded warehouses (Type 3) without needing their own warehouse license. The importer contracts with the licensed warehouse operator, who posts the surety bond and handles CBP compliance. This allows small importers to access duty-deferral benefits without the compliance overhead of operating their own bonded facility. For import financing needs, apply.