Anti-Dumping & Countervailing Duties Explained

Anti-dumping (AD) and countervailing duties (CVD) are special tariffs the United States adds on top of normal duties to cancel out the price advantage of imports that are either sold below fair value or propped up by foreign government subsidies. They are the two main “trade remedies” U.S. industries use to fight unfair competition, and they are imposed under Title VII of the Tariff Act of 1930. If you import goods subject to an AD/CVD order, the extra duty can dwarf the ordinary tariff — so it pays to understand how these cases work before you source.

What dumping and subsidies are

Dumping happens when a foreign producer sells goods in the U.S. market at less than their “normal value” — usually the price charged in the producer’s home market, or the cost to make them. Selling below fair value can let importers undercut domestic producers and take market share on price alone.

Subsidization is different. It occurs when a foreign government gives its producers a financial benefit — a grant, a cheap loan, a tax break, or below-cost inputs — that lets them export at artificially low prices. Anti-dumping duties target the pricing behavior of the company; countervailing duties target the support from the foreign government. The same imported product can be hit with both at once.

How an AD or CVD case actually works

The most important thing to understand about the U.S. system is that two different federal agencies share the job, and both have to reach a “yes” before duties are imposed.

A case starts when a domestic industry — a company, a union, or a trade association — files a petition simultaneously with both Commerce and the USITC. From there it runs on a statutory timeline:

1. USITC preliminary injury determination — within 45 days of the petition, the Commission makes a quick first call on whether there is a reasonable indication of injury. A “no” ends the case.
2. Commerce preliminary determination — in a CVD case, roughly 65 days after initiation; in an AD case, roughly 140 days after initiation. If Commerce finds dumping or subsidies, CBP begins collecting cash deposits at the preliminary rates.
3. Final determinations — Commerce and then the USITC issue final decisions. Only if both are affirmative does Commerce issue an AD or CVD order.

Those preliminary windows can be extended, but the structure is fixed: Commerce decides the unfair-pricing question, the USITC decides the injury question, and both must agree.

The U.S. uses a “retrospective” duty system

This is the feature that surprises importers most. In many countries, the duty rate set in an investigation is the rate you pay, full stop. The United States is different: it operates a retrospective assessment system.

When an order is in place, importers pay an estimated cash deposit at entry. The final duty is calculated later — typically through an annual administrative review at Commerce that looks back at the actual sales during the period. If the final rate is higher than the deposit, the importer owes the difference plus interest; if it is lower, the importer gets money back. That means your true duty liability on AD/CVD merchandise may not be settled until well after the goods are sold, which is a real cash-flow and risk issue to plan around.

Why this matters before you source

AD/CVD orders attach to a product from a specific country, not to a company. So you can be caught by an order you had nothing to do with simply because you bought a covered product from a covered country. The consequences are significant:

• AD/CVD rates can be enormous — far higher than ordinary tariffs, sometimes exceeding 100% of the entered value.
• Liability is retrospective, so a rate increase in an administrative review can produce a surprise bill long after entry.
• Evasion is policed aggressively. Transshipping covered goods through a third country to dodge an order can trigger investigations under the Enforce and Protect Act and serious penalties.
• The importer of record is on the hook for getting it right, which makes pre-purchase due diligence essential.

Before committing to a supplier, check whether the product and country of origin are subject to an existing AD/CVD order, and confirm the true country of origin — not just where the goods were last shipped. Country-of-origin questions are exactly where a CBP binding ruling can give you certainty in advance.

Frequently asked questions

What is the difference between anti-dumping and countervailing duties? Anti-dumping duties offset a foreign company selling below fair value. Countervailing duties offset a benefit a foreign government gave its producers, such as a subsidy or tax break. A product can be subject to both.

Who decides whether AD/CVD duties apply? Two agencies. The U.S. Department of Commerce determines whether dumping or subsidization exists and at what rate; the U.S. International Trade Commission determines whether the U.S. industry is materially injured. Both must agree before an order is issued.

How high can these duties be? There is no fixed cap. AD/CVD rates are calculated from the dumping margin or subsidy rate and can far exceed normal duty rates — sometimes well over 100% of the goods’ value.

Can I avoid an order by shipping through another country? No. Routing covered goods through a third country to disguise their origin is illegal evasion and can lead to investigations and penalties. Duties follow the product’s true country of origin.

Sourcing a product that may be covered by an AD/CVD order? Reidel Law Firm delivers a flat-fee import/export compliance memo that checks your product and country of origin against existing orders, flags your duty exposure, and lays out next steps in plain English. Get a flat-fee compliance memo →