A bonded warehouse gives you up to five years of duty deferral and charges the rate in effect when the goods leave. An FTZ gives you unlimited storage, weekly entry consolidation, and the choice of paying the component rate or the finished-good rate. Pick the bonded warehouse when you expect rates to fall. Pick the FTZ when you ship often or manufacture inside the zone.
The five-year clock is the first fork in the road
A bonded warehouse is a CBP-approved facility where imported goods can sit for up to five years without a duty payment. The warehouse operator posts a bond with CBP guaranteeing the duty when the goods are eventually withdrawn for consumption. If the goods are exported or destroyed under CBP supervision instead, no duty is ever paid. Five years sounds generous until a slow-moving SKU is still on the shelf in year four, and then the clock starts making decisions for you.
An FTZ has no statutory time limit at all. Goods admitted to a zone can stay there indefinitely, and the zone is legally outside US customs territory for duty purposes until the goods enter US commerce. That open-ended stay is the reason FTZs suit importers who hold buffer stock through a tariff fight or a demand slump. The bonded warehouse suits the importer with a known sell-through date and a rate bet, not the one parking goods indefinitely.
Related reading on this site: LandedWatch and LandedWatch cover the neighbouring problems in more depth.
Weekly entry is where the FTZ pays for itself
Every customs entry carries a Merchandise Processing Fee. For fiscal year 2026 the MPF runs 0.3464 percent of value, with a floor of $33.58 and a ceiling of $651.50 per entry. A bonded warehouse needs a separate entry for every withdrawal, so a high-volume importer pays that fee over and over. An FTZ operator with weekly entry files one consolidated entry for everything withdrawn during the week, and pays one MPF.
The math turns on shipment count. GEODIS puts the rough break-even near 52 shipments a year: below that, the weekly entry saving may not cover the cost of setting up and running a zone. Above it, the saving compounds every week. A bonded warehouse has lower setup cost and simpler administration, which is why it wins for the importer moving a few containers a month. Count your entries before you count your savings.
Which way the rate moves decides the winner
Here is the fork that matters most in a year when rates keep changing. A bonded warehouse applies the duty rate in effect at withdrawal. If rates fall while your goods sit in bond, you pay the lower rate. If they rise, you pay the higher one. An FTZ, for goods subject to additional tariffs, typically locks the rate at admission through privileged foreign status. You give up the chance of a lower rate later in exchange for certainty now.
The FTZ has one more card the bonded warehouse cannot play: the inverted tariff election. With production authority, an importer manufacturing inside the zone can elect at entry to pay the rate on the finished product instead of the rate on the foreign components, when the finished rate is lower. Bonded warehouses allow manipulation only, not manufacturing, so that election never arises. If you assemble, kit, or finish goods before they enter US commerce, the FTZ is not just cheaper, it is the only one of the two that does the job.
Frequently asked questions
How long can goods stay in a bonded warehouse without paying duty?
Up to five years from the date of importation. After that the goods must be withdrawn for consumption, exported, destroyed under CBP supervision, or transferred to another bonded facility. An FTZ has no statutory time limit on storage.
What is the merchandise processing fee on a weekly FTZ entry?
For fiscal year 2026 the MPF is 0.3464 percent of the entered value, with a minimum of $33.58 and a maximum of $651.50 per entry. A weekly FTZ entry consolidates all withdrawals for the week into one entry, so the importer pays one MPF instead of one per shipment.
Can a bonded warehouse be used for manufacturing?
No. Bonded warehouses allow storage and limited manipulation only. Manufacturing or substantial transformation requires a foreign trade zone with production authority from the FTZ Board.
What is privileged foreign status in an FTZ?
It is the status an importer elects for goods subject to additional tariffs, locking in the duty rate in effect when the goods are admitted to the zone. The rate stays fixed even if tariffs fall later, so the importer trades the chance of a lower rate for certainty about the rate.