A bonded warehouse is a facility authorized by US Customs (or CBSA in Canada) to store imported goods without immediate payment of duty. It functions similarly to an FTZ but operates under different statutes, with stricter limits on what can happen to the goods while they’re in storage. Class 2 and Class 3 bonded warehouses are the most common types for ecommerce 3PL operations.
How it works in practice
A typical bonded warehouse flow: goods arrive at a US port, the customs broker files an entry that designates them as warehouse entries (T&E or IT bond), the goods move under bond to the bonded warehouse, and they sit there for up to five years duty-free. As orders ship to US customers, a withdrawal entry is filed and duty is paid on just the withdrawn quantity. Goods re-exported to Canada, Mexico, or elsewhere never pay US duty at all.
Unlike an FTZ, manufacturing and substantial transformation are generally not permitted in a bonded warehouse. The goods stay in their imported condition. This makes bonded warehouses better suited to brands holding finished inventory and worse suited to brands that want to kit, manufacture, or substantially modify goods.
Why it matters
For brands not large enough to justify an FTZ but importing enough inventory to feel the cash impact of Section 122, a bonded warehouse is the middle option. The setup is faster (weeks rather than months), the operational restrictions are tighter, and the duty deferral benefit is roughly equivalent. Bonded warehouses are also useful for brands serving multiple country markets from a single hub, since duty is only owed on the units that enter US commerce.
Common misconceptions
- A bonded warehouse is not the same as an FTZ. Different statutes, different operational limits, different paperwork.
- Bonded warehouse status is not a property of the building, it’s a property of the customs authorization. The same building can have bonded and non-bonded zones.
- Goods cannot stay in a bonded warehouse forever. The five-year US limit is strict, and goods that pass it must be destroyed, exported, or duty-paid.