The tariff environment changed the FTZ math. Here’s why the Numbers finally work

Here is a fact that should stop every CFO, COO, and supply chain executive cold: more than half of the Fortune 500 are actively using Foreign-Trade Zones to legally eliminate or defer tens of millions of dollars in import duties every year. If your organization is not among them, you are missing out on a profit enhancement your competitors are already using.

1,000%

Increase in average U.S. import duty rates over the past decade — from 2.5–4% to 20–25% across all countries, all commodities.

This Is the New Normal — Time to Accept It and Act

Not since 1934 has the average tariff rate on U.S. imports been this high. For most of my career, the “all-in” duty rate for goods entering this country hovered between 2.5% and 4%. Today that number is 20–25% — for imports from virtually every country on earth.

This is not a political anomaly. It is bipartisan. It has persisted across three consecutive presidential administrations, and it is not going away. This is the new normal.

Companies that are waiting for tariff relief — through litigation, lobbying, or a change in administration — are making a costly bet. Some have pursued carve-outs with limited success. Others have absorbed the costs and passed them to customers, eroding competitiveness. The organizations that are winning right now are the ones that stopped fighting the environment and started engineering around it.

What Is an FTZ, and Why Does It Work Now?

Foreign-Trade Zones are federally designated areas — including warehouse, distribution, and manufacturing facilities — where imported goods can be received, stored, manipulated, and re-exported without triggering U.S. Customs duties until (and unless) those goods enter U.S. commerce.

The FTZ program is approaching its 100th anniversary. It is not experimental, not obscure, and — with modern Tier 1 zone administration software now widely available as SaaS platforms — not even particularly difficult to operate anymore. What has changed is the math.

Why the Math Changed

When duty rates were 2.5% and interest rates were 4.5%, the financial benefits of an FTZ were real but modest — easy to overlook. At 20–25% duty rates with carrying costs above 7.5%, every one of the FTZ’s financial mechanisms has become dramatically more valuable. The same program, applied to today’s tariff environment, produces results that were simply not possible five years ago.

The Three Financial Engines Inside Every FTZ

1. Duty Elimination on Exports, Scrap, and Waste

Goods that enter an FTZ and are subsequently exported — or that become scrap, waste, or are returned to the vendor — never incur U.S. import duties. At a 2.5% duty rate, this was a rounding error. At 20–25%, it is a material line item. Any organization with meaningful export volume, high scrap or manufacturing loss, or significant vendor returns should be calculating this number today.

2. Duty Deferral and the Time-Value Advantage

Inside an FTZ, duties are not paid until goods exit the zone and enter U.S. commerce — typically four to five months after receipt. At the old 2.5% duty rate, deferring payment for five months at 4.5% carrying costs was barely worth the paperwork. The arithmetic today is fundamentally different.

Consider an apparel importer carrying $100 million in FTZ inventory subject to a combined 32.5% duty rate (12.5% punitive + 20% standard). Deferring $30.25 million in duty payments for five months (and annualizing that savings) at a 7.5% carrying cost rate generates an annual cash flow benefit of approximately $2,268,750 — from deferral alone, before any other FTZ savings are counted. Scale that across $200M or $700M in annual import inventory and the numbers become transformative.

3. The MPF Savings That Most Companies Have Never Calculated

This is the FTZ benefit that consistently surprises experienced logistics executives when they see the math for the first time. Merchandise Processing Fees — the CBP fee assessed on every formal import entry — now run as high as $600 per entry. FTZ operators are permitted to file a single “weekly entry,” consolidating an entire week’s worth of receipts into one $600 fee.

$1,728,000

Annual MPF savings for a company filing 3,000 entries per year (roughly $1.8M in fees) reduced to 52 weekly entries (roughly $31K) under FTZ status.

That is not a projection or a best-case scenario. It is arithmetic. And for high-volume importers, it is often the single largest FTZ benefit — available from day one of zone operation.

A Note on Manufacturing FTZs

Manufacturers have historically been the primary beneficiaries of FTZs, particularly through “inverted tariff” savings — the ability to pay the lower duty rate on a finished good rather than the higher rate on its imported components. The wave of punitive tariffs (Section 232, Section 301, etc.) has largely neutralized that specific benefit, because punitive tariffs apply to both components and finished goods.

Manufacturers should not, however, dismiss FTZs entirely. Duty elimination on scrap and exports, deferral savings, and MPF consolidation remain fully available and often highly significant for manufacturing operations. The analysis simply requires a more precise calculation than it did a decade ago. Exxon, GM, Whirlpool, Mercedes, BMW, and TSMC are among the manufacturers currently using FTZs.

The Cost of Waiting

Every month an organization defers evaluating FTZ eligibility is a month of duty payments, MPF fees, and carrying costs that cannot be recovered. The FTZ application and activation process takes time — typically three to nine months depending on jurisdiction and complexity. Companies that begin the evaluation now will be capturing savings by mid-2027. Companies that wait another year will not.

A competent FTZ advisor can conduct a preliminary feasibility analysis — quantifying the estimated annual savings against the cost of zone activation and ongoing administration — in a matter of days. The question is not whether your organization qualifies. The question is how much you are leaving on the table by not knowing.

The Bottom Line

Foreign-Trade Zones have been the best-kept secret in supply chain finance for decades. At today’s tariff rates, they are no longer a niche tool for a handful of large manufacturers. They are a mainstream, proven, federally supported mechanism for reclaiming profitability that the tariff environment has taken from your business. The Fortune 500 figured this out years ago. The question is whether your organization will act before your competitors do.

Curtis Spencer is CEO of IMS Worldwide Inc., a global supply chain and trade advisory firm with deep expertise in Foreign-Trade Zones, strategic site selection for industrial real estate, and logistics optimization.

This article does not necessarily reflect the opinion of the AJOT editorial board or Fleur de lis Publishing, Inc. and its owners.