INTERNATIONAL TRADE LAW
Anti-Dumping & Countervailing Duties: A Guide

Anti-dumping and countervailing duties are extra import duties the U.S. imposes to offset unfairly low-priced or government-subsidized foreign goods. An anti-dumping (AD) duty targets goods sold in the U.S. below their normal value; a countervailing (CVD) duty offsets foreign government subsidies. If your product falls under an existing order, you owe these duties on top of ordinary tariffs — often at rates large enough to change whether an import makes economic sense. This guide explains how the duties are set and what they mean for importers.
Anti-Dumping vs. Countervailing: The Difference
Both are “trade remedies,” and both result in extra duties, but they answer different questions about what makes an import unfair.
| Anti-dumping (AD) | Countervailing (CVD) | |
|---|---|---|
| Targets | Goods sold in the U.S. below normal value | Goods that benefit from foreign subsidies |
| The unfair conduct | Price discrimination (“dumping”) | Government financial assistance |
| Duty offsets | The dumping margin | The subsidy rate |
| Who’s at fault | The exporter/producer | The foreign government plus the producer |
“Dumping” means selling export goods in the U.S. at a price below their normal value — generally the price in the producer’s home market or a constructed cost-based value. A “subsidy” is financial assistance from a foreign government — grants, preferential loans, tax breaks — that gives producers an artificial advantage. The duty in each case is sized to neutralize the specific unfair advantage, not to punish.
How a U.S. AD/CVD Case Works
The U.S. system is run by two agencies, each deciding a different question under Title VII of the Tariff Act of 1930.
| Step | Agency | Decision |
|---|---|---|
| Is there dumping or subsidization, and how much? | U.S. Department of Commerce (International Trade Administration) | Calculates the dumping margin or subsidy rate |
| Is the U.S. industry materially injured? | U.S. International Trade Commission (USITC) | Determines material injury or threat to the domestic industry |
| Both answers yes? | Commerce issues the order | An AD or CVD order is put in place; CBP collects |
A case usually begins with a petition from the domestic industry (Commerce can also self-initiate). The two agencies run parallel investigations, issue preliminary and then final determinations, and only if both reach affirmative final findings does Commerce issue the order. From that point, U.S. Customs and Border Protection collects the duties at the border. Orders are not permanent: they are subject to annual administrative reviews that can adjust rates and to five-year “sunset” reviews that decide whether the order continues.
What This Means for Importers
The party that pays is the importer of record — not the foreign exporter. When you import merchandise covered by an order, you generally post cash deposits at the estimated AD/CVD rate at the time of entry. Because the U.S. uses a retrospective system, those deposits are estimates: the final duty owed is set later in an administrative review and can come out higher or lower than what you deposited, leaving you with a bill or a refund.
A few practical consequences follow:
- Scope is everything. Whether your specific product is covered turns on the order’s scope language and the goods’ country of origin — and getting classification and origin right is how you know if you’re in or out.
- Evasion is treated seriously. Transshipping or mislabeling goods to dodge an order carries significant penalties; AD/CVD enforcement is a CBP priority.
- AD/CVD is separate from other tariffs. These duties are distinct from most-favored-nation rates and from policy tariffs imposed under other statutes; an order applies regardless of those, which is why they are a specialized trade barrier rather than a general tariff.
Industries like steel and solar have been the subject of long-running AD/CVD orders, but orders span a wide range of products, and new petitions are filed regularly — so coverage can change for a product that was clear last year.
Frequently Asked Questions
Who pays anti-dumping and countervailing duties?
The U.S. importer of record pays, at entry, in the form of cash deposits at the estimated rate. The foreign exporter does not pay the duty to CBP, though the order is aimed at its conduct.
Which agencies decide AD/CVD cases?
Two. The U.S. Department of Commerce decides whether dumping or subsidization exists and sets the margin or subsidy rate; the U.S. International Trade Commission decides whether the U.S. industry is materially injured. Both must agree for an order to issue.
Are AD/CVD rates final when I import?
No. Deposits at entry are estimates. The U.S. uses a retrospective system, so the final assessed rate is set later in an administrative review and can be higher or lower than the deposit.
How do I know if my product is covered by an order?
Coverage depends on the order’s scope language and the product’s country of origin and classification. When it’s unclear, importers can seek a scope ruling from Commerce rather than guess.
AD/CVD exposure can quietly erase the margin on an import, and the retrospective system means the bill can grow after the goods are long sold. Reidel Law Firm helps importers assess scope, origin, and AD/CVD risk on flat-fee terms. Get an import compliance memo.


