Calculate duty savings from Foreign Trade Zones (FTZ). Estimate FTZ benefits including duty deferral, inverted tariff savings, and re-export savings.
Foreign Trade Zones (FTZs) are secure areas within the United States that are legally considered outside US customs territory for duty purposes. Goods can be imported into an FTZ without paying customs duties until they enter domestic commerce. There are over 190 FTZs across the US, operated by communities under federal grants.
FTZs offer three primary duty savings mechanisms: duty deferral (no duty until goods leave the FTZ), inverted tariff benefits (when the duty on a finished product is lower than on its components), and duty elimination on re-exported goods (no duty paid on goods manufactured in the FTZ and exported).
This calculator estimates the financial benefits of operating in a Foreign Trade Zone based on your import profile, manufacturing activities, and export percentage.
Supply-chain managers, warehouse operators, and shipping coordinators rely on precise free trade zone savings data to maintain efficiency and control costs across complex distribution networks. Revisit this calculator whenever conditions change to keep your logistics plans aligned with real-world performance.
FTZs can save importers and manufacturers millions in customs duties annually. Duty deferral improves cash flow, inverted tariffs reduce duty rates on manufactured goods, and re-exports avoid duties entirely. The average FTZ user saves 2-5% on landed import costs. Real-time recalculation lets you model different scenarios quickly, ensuring your logistics decisions are backed by accurate, up-to-date numbers.
Duty Deferral Savings = Component Duty × Cost of Capital × Average Deferral Period Inverted Tariff Savings = Import Value × (Component Rate − Finished Product Rate) Re-Export Savings = Import Value × Re-Export % × Component Rate Total FTZ Benefit = Deferral Savings + Inverted Savings + Re-Export Savings − FTZ Costs
Result: Net FTZ Savings = $375,000/year
Inverted tariff savings = $5M × (8% − 3%) = $250,000. Re-export savings = $5M × 30% × 8% = $120,000. Duty deferral savings = $400,000 × 5% × 1 year = $20,000 (approximate). Gross savings = $390,000. Net after $45,000 FTZ costs = $345,000.
While both defer duty payments, FTZs offer broader benefits. Bonded warehouses are limited to storage and basic handling; FTZs allow manufacturing, assembly, and processing. FTZ merchandise has no time limit on storage (bonded warehouses have 5-year limits). FTZs also provide inverted tariff benefits that bonded warehouses cannot.
Identify products where the finished goods tariff rate is lower than the component tariff rate. Common examples include electronics (component rates 3-8%, finished product 0-3%), automotive parts (component rates vary, vehicle rate may be lower for certain assemblies), and consumer goods manufactured from imported materials.
A thorough FTZ cost-benefit analysis should consider: duty deferral value (import duty × cost of capital × deferral period), inverted tariff savings (duty differential × eligible import value), re-export duty elimination, reduced brokerage fees from weekly entry, and operational benefits. Compare these against FTZ costs for a clear ROI picture.
An inverted tariff exists when the duty rate on imported components is higher than the duty rate on the finished product made from those components. In an FTZ, you can elect to pay the lower finished product rate on all components, saving the difference.
Goods can be admitted into an FTZ without paying customs duties. Duty is only owed when goods are transferred into US customs territory (domestic commerce). This deferral can last weeks, months, or years, freeing up working capital.
Activities permitted include storage, distribution, assembly, manufacturing, processing, testing, labeling, packaging, and repair. Manufacturing and processing require approval from the FTZ Board. Simple storage and distribution are allowed under general-purpose zone authority.
You can activate space in an existing FTZ (contact the local zone grantee) or apply for a subzone designation for your facility. The process involves CBP activation, FTZ Board authorization (for manufacturing), and establishing internal compliance procedures.
FTZ costs include zone rent/fees ($1-5/sq ft annually), CBP activation and supervision fees, recordkeeping systems, weekly entry filing costs, and compliance staff time. Total costs typically range from $25,000 to $200,000+ annually depending on operation size.
Yes. Goods qualifying under both FTZ and FTA programs can utilize both benefits. For example, USMCA-qualifying goods can enter an FTZ duty-free and still benefit from FTZ operational advantages like weekly entry and inventory flexibility.