Tariff costs are not always final. Two long-standing U.S. customs programs, duty drawback and foreign trade zones (FTZs), let some importers recover duties already paid or avoid paying them in the first place. Both are technical and underused. They fit different situations, and which one applies depends on what happens to the goods after they arrive.
The tariff picture also changed during 2026. The Supreme Court ruled in February that IEEPA does not authorize tariffs, and CBP stopped collecting IEEPA duties on February 24, 2026. Other tariff authorities, including Section 301 and Section 232, are separate and were not affected by that ruling. Anything below that depends on the current tariff stack should be checked with a customs broker.
Duty Drawback: Refunds After the Fact
Drawback is a refund of duties, taxes and fees paid on imported goods that are later exported or destroyed. Up to 99 percent is generally refundable. It applies in three main situations:
- Unused merchandise. Imported goods are exported in the same condition, or commercially interchangeable goods are exported in their place.
- Manufacturing. Imported materials are used to make a product in the U.S. that is then exported. CBP generally must approve the manufacturing arrangement before the claim is filed.
- Rejected merchandise. Goods that fail to meet specifications and are returned or destroyed.
CBP’s rules implementing the Trade Facilitation and Trade Enforcement Act of 2015, effective in December 2018, loosened the substitution standard to “commercially interchangeable,” simplified recordkeeping and required electronic filing. Claim deadlines are measured in years, and secondary sources differ on whether the clock runs from import or export, so confirm the filing window in the regulation for your claim type.
CBP has said Section 301 duties are eligible for drawback. The filer reports the Chapter 99 subheading for the additional duty along with the regular tariff classification, so the paperwork has to match the entry record exactly.
The catch is documentation. A drawback claim has to link each import entry to a specific export or destruction. Companies that cannot trace that link do not collect. Manufacturers that export finished goods containing imported components are the most common candidates, and buyers who source components for products sold abroad should ask their finance team whether anyone is filing.
Foreign Trade Zones: Deferral, Reduction and Elimination
A foreign trade zone is a secured area treated as outside U.S. customs territory for duty purposes. Goods can be stored, assembled or processed there. The benefits fall into three groups:
- Deferral. Duty is generally due when goods leave the zone for the domestic market, not when they arrive. That improves cash flow for inventory that sits for months.
- Elimination on exports. Foreign goods re-exported from the zone generally never pay U.S. duty.
- Inverted tariff relief. When an imported component carries a higher duty rate than the finished product, a zone user can elect to pay the rate on the finished product instead.
The main limit is privileged foreign status. For trade-remedy duties such as the China Section 301 tariffs, CBP has required covered merchandise to enter a zone in privileged foreign status, which fixes the duty rate at admission and removes the inverted tariff benefit. Rules differ for products granted a Section 301 exclusion, so classification matters.
Using a zone also has costs: operator fees, a compliance program, inventory controls and CBP oversight. It generally suits companies with steady import volume and a site in or near a zone.
Where Buyers Fit In
Neither program is run by the purchasing team, but buyers control the inputs that decide whether it works. Drawback depends on clean records: the entry number, tariff classification, the duties paid by authority and the matching export or destruction evidence. Buyers who negotiate supplier contracts can require commercial invoices that list the origin, classification and unit value of each component, and can ask foreign suppliers to keep the same detail on their side. For an FTZ, the lever is sourcing location and flow: whether the goods will be stored, processed or shipped onward from a zone operator’s site, and whether that site can handle your volume and handling needs.
Total landed cost is the right frame. A refund or deferral that lowers duty cost by a few points still has to cover broker fees, zone charges, software and staff time. Run the numbers for your own import volume before treating either program as a saving.
Which One Fits
| Situation | Better fit |
|---|---|
| Goods imported and later exported | Drawback, or FTZ re-export |
| Cash tied up in duty on slow-moving inventory | FTZ deferral |
| Component duty higher than finished-good duty | FTZ, if the duty authority allows it |
| Duties already paid on goods now exported | Drawback |
The programs can interact, and the same duty cannot be recovered twice, so have a broker coordinate them.
What Buyers Should Do Next
Ask your importer of record three questions. Do we export any product that contains imported inputs? What duties, by tariff authority, did we pay on those inputs in recent years? Who holds the entry and export records? Then ask a licensed customs broker or trade attorney to size the opportunity before building anything.
Check IEEPA refund status separately through CBP’s current guidance. That process runs on its own rules, and drawback claims were excluded from the first phase of CBP’s refund portal.
