Free Trade Zone Savings Calculator

About the Free Trade Zone Savings Calculator

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.

Use the result to compare operating scenarios, pressure-test assumptions, and rerun the model when volumes, rates, or service targets change.

When This Page Helps

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.

How to Use the Inputs

1. Enter the annual value of imported components or goods.
2. Enter the duty rate on imported components.
3. Enter the duty rate on the finished product (for inverted tariff).
4. Enter the percentage of production that is re-exported.
5. Enter the estimated FTZ operating costs.
6. View total FTZ savings from all three benefit categories.

Example Calculation

Tips & Best Practices

• Inverted tariff benefits are the largest FTZ savings for most manufacturers.
• Track re-exports carefully — documenting export vs domestic consumption determines duty savings.
• FTZ status can apply to an entire plant or a specific subzone for your facility.
• Weekly entry (vs per-shipment entry) reduces customs brokerage costs significantly.
• FTZ merchandise can be stored indefinitely without duty payment.
• Evaluate FTZ benefits as part of site selection for new manufacturing or distribution facilities.

FTZ vs Bonded Warehouse

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.

Inverted Tariff Strategy

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.

FTZ ROI Analysis

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.

Frequently Asked Questions

• What is an inverted tariff?

  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.

• How does duty deferral work in an FTZ?

  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.

• What types of activities are allowed in an FTZ?

  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.

• How do I establish an FTZ operation?

  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.

• What are the costs of operating in an FTZ?

  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.

• Can FTZ and FTA benefits be combined?

  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.