Anti-dumping and countervailing duties are the trade remedies most likely to turn a profitable import program into a loss, and the ones importers understand least. Unlike a headline tariff that applies to a whole country or a whole chapter of the tariff schedule, these duties attach to a specific product from a specific producer in a specific country, at rates that have historically ranged from low single digits to well above 100%. They are also assessed retroactively in the United States, which means the amount you pay at the border is an estimate, not a settlement. This guide explains how the system works, who decides what, and where to verify the current position before you commit to a purchase order.
In short
- Anti-dumping duties target goods sold into a market below fair value, while countervailing duties target goods that benefited from foreign government subsidies. Both are authorized under Title VII of the Tariff Act of 1930 (19 U.S.C. 1671 and 1673).
- Two US agencies decide, a third collects. The Commerce Department sets the dumping margin or subsidy rate, the US International Trade Commission decides whether a domestic industry was injured, and US Customs and Border Protection collects at entry.
- The cash deposit is not the final bill. The US runs a retrospective system: final liability is set later in an administrative review, and the importer of record owes the difference plus interest if the rate rises.
- Scope, not HTS code, decides coverage. An order’s scope language governs, and Commerce scope rulings and CBP evasion cases under the Enforce and Protect Act regularly catch importers who relied on a classification alone.
- Rates and case lists change constantly. Anything you read here, including in this article, should be confirmed against the current Federal Register notice and the official agency case records before you act on it.
What anti-dumping and countervailing duties are and why they matter for online sellers
Anti-dumping duties respond to price discrimination across borders. In the US framework, dumping occurs when a foreign producer sells merchandise into the US market at less than fair value, which usually means below the price it charges in its home market or below its cost of production. The remedy is a duty intended to close that gap, and it is calculated per producer or exporter rather than per country.
Countervailing duties respond to a different problem: government support. If a foreign government provides a countervailable subsidy to producers of a good, such as preferential loans, tax forgiveness, grants or inputs supplied for less than adequate remuneration, the resulting benefit can be offset with a duty. The two remedies frequently arrive together, because petitioners often file parallel anti-dumping and countervailing cases on the same product.
For online sellers and smaller importers, the practical importance is disproportionate. A general tariff of 10% or 25% is painful but survivable through pricing, sourcing and negotiation. An anti-dumping rate in the high double digits or above can exceed the landed cost of the goods themselves, which converts a routine reorder into an unrecoverable loss.
These duties also sit alongside, rather than instead of, other trade measures. A single entry can carry the normal duty rate from the tariff schedule, a Section 301 or Section 232 action, and an anti-dumping and countervailing duty, all at once. Our primer on Section 301 tariffs on China imports covers that separate track, and the broader context for how these instruments interact sits in our guide to understanding global trade.
How they differ from ordinary tariffs
An ordinary customs duty is a published rate tied to a tariff classification and a country of origin. You can look it up, and two importers bringing in identical goods pay the same. Anti-dumping and countervailing duties break both of those assumptions.
First, the rate depends on who made the goods. Two importers can bring in physically identical products from the same country in the same week and pay wildly different rates, because one bought from a producer with its own calculated rate and the other bought from a producer covered by a country-wide or all-others rate. Second, the rate can change after entry, which no ordinary tariff does in the same way.
| Feature | Anti-dumping duty | Countervailing duty |
|---|---|---|
| Conduct addressed | Sales at less than fair value by a foreign producer or exporter | Countervailable subsidies provided by a foreign government or public body |
| Primary US statute | 19 U.S.C. 1673 (Title VII, Tariff Act of 1930) | 19 U.S.C. 1671 (Title VII, Tariff Act of 1930) |
| Who calculates the rate | Commerce Department, Enforcement and Compliance | Commerce Department, Enforcement and Compliance |
| Who decides injury | US International Trade Commission | US International Trade Commission |
| Rate assigned to | Individual producers and exporters, plus an all-others rate | Individual producers and exporters, plus an all-others rate |
| Typical case number prefix | A-XXX-XXX | C-XXX-XXX |
| WTO framework | Anti-Dumping Agreement (Article VI, GATT 1994) | Agreement on Subsidies and Countervailing Measures |
The WTO frameworks matter because they constrain what national authorities may do. According to the World Trade Organization, member countries may only impose these duties after an investigation that establishes dumping or subsidization, material injury or threat of injury to a domestic industry, and a causal link between the two. Domestic law then fills in the procedure, and the procedural details differ meaningfully between the US and the European Union.
How anti-dumping and countervailing duties work in practice
The lifecycle of a case is long, public and reasonably predictable in shape, even though the outcome is not. Understanding the sequence is what lets an importer see exposure coming rather than discovering it in a CBP notice months later.
Who does what
Three US bodies share the work. Commerce, through its International Trade Administration, investigates whether dumping or subsidization occurred and at what margin. The US International Trade Commission, an independent agency, determines whether a US industry is materially injured or threatened with material injury. CBP administers collection at the border once an order exists.
The split matters for a reason importers often miss: a high dumping margin alone produces nothing. If the ITC finds no injury, there is no order regardless of how large the calculated margin was. Conversely, a modest margin combined with an affirmative injury finding produces a live order that binds every importer of covered merchandise.
The investigation timeline
Cases typically begin with a petition from a domestic producer, a group of producers or a union, filed simultaneously with Commerce and the ITC. Commerce may also self-initiate. The statutory schedule that follows is set out in Title VII and in Commerce’s regulations at 19 CFR Part 351, and deadlines can be extended in ways the statute defines.
The step that matters commercially is the preliminary determination by Commerce. When Commerce issues an affirmative preliminary determination, it instructs CBP to suspend liquidation of entries and to begin collecting cash deposits at the preliminary rate. That is the moment an importer’s cost structure changes, and it typically arrives well before the final order.
| Stage | Deciding body | What it does to importers |
|---|---|---|
| Petition filed and case initiated | Petitioner, then Commerce | No duty yet, but the product and countries at issue become public |
| Preliminary injury determination | US International Trade Commission | A negative finding ends the case; an affirmative one lets it continue |
| Preliminary determination on dumping or subsidy | Commerce Department | Suspension of liquidation begins and cash deposits start at the preliminary rate |
| Final determination on dumping or subsidy | Commerce Department | Cash deposit rates are revised, up or down |
| Final injury determination | US International Trade Commission | An affirmative finding leads to an order; a negative one ends the case and deposits are refunded |
| Order published | Commerce Department, in the Federal Register | Duties apply to covered entries on an ongoing basis |
| Administrative review | Commerce Department | Final assessed liability is set for reviewed entries, which can be above or below deposits |
| Sunset review | Commerce and the ITC | Order is revoked or continued, generally on a five-year cycle |
Timelines in the table above describe the ordinary sequence rather than fixed dates, because statutory deadlines are subject to extension and alignment between the anti-dumping and countervailing tracks. The authoritative schedule for any specific case appears in the Federal Register notices for that case.
Cash deposits versus final liability
This is the single most consequential feature of the US system, and the one that surprises importers most often. The US assesses these duties retrospectively. The rate you pay at entry is a deposit against an amount that has not been calculated yet.
Final liability is determined in an administrative review, which interested parties may request during the anniversary month of the order. Commerce reviews actual sales during the review period and calculates the assessment rate. CBP then liquidates the entries at that rate, and the importer of record pays any shortfall with interest or receives a refund with interest.
The practical consequence is that an importer can pay a deposit of a few percent in one year and receive a bill for a much larger amount two or three years later, after liquidation. Entries can remain unliquidated for extended periods while reviews and litigation run, so the liability stays open on the books far longer than a normal customs transaction. This is why experienced importers treat the deposit rate as a floor rather than a cost.
Retroactivity and critical circumstances
Commerce can find that critical circumstances exist, broadly where there is a history of dumping and importers knew or should have known that dumping was occurring, combined with massive imports in a short period. Where that finding is made and sustained, suspension of liquidation can reach back before the preliminary determination, within limits the statute sets. The practical effect is that stockpiling ahead of an expected preliminary determination is not the safe hedge it appears to be.
Refund questions in trade cases are rarely simple either, and they can turn on litigation outcomes rather than agency practice. The dispute over whether importers can recover tariffs paid under a measure later found unlawful, covered in our report on the trade court’s IEEPA refund class ruling, illustrates how long recovery can take even when the legal theory is strong. Nothing in this article should be read as a prediction about any specific refund claim.
What sellers need to check before importing or shipping
Most avoidable AD/CVD exposure comes from skipping diligence that takes hours rather than weeks. The checks below are the ones customs professionals run as a matter of routine, and none of them require privileged information.
Read the scope, not the tariff code
Every order contains a scope description that defines covered merchandise in words. The tariff classifications listed in an order are usually described as provided for convenience and customs purposes, with the written description governing. That single sentence has decided a very large number of disputes.
It follows that classifying your product outside the listed subheadings does not put you outside the order. If the written scope describes what you are importing, the order applies. Where the answer is genuinely unclear, Commerce operates a scope ruling process that produces a binding answer for the specific product, and that process exists precisely because reasonable readings can diverge.
Identify the actual producer, not just the seller
Rates attach to producer and exporter combinations. An importer who knows only the trading company it buys from cannot determine its rate, because the same trading company may source from multiple factories with different rates. Purchase documentation should establish the manufacturer, and that fact should be verifiable rather than asserted.
In non-market economy cases, this is sharper still. Where Commerce treats a country as a non-market economy, producers must qualify for a separate rate; those that do not are covered by a country-wide entity rate, which has in some proceedings been set at very high levels using adverse facts available. Buying from an unnamed or unverified factory in such a case is a decision to accept the country-wide rate.
Check the live case list before you order
Commerce publishes its proceedings and Federal Register notices, the ITC publishes investigation records, and CBP publishes AD/CVD messages that instruct the ports on collection. An importer can determine, before placing an order, whether the product and country combination is subject to an order, a pending investigation, a circumvention inquiry or an evasion allegation. The International Trade Administration’s enforcement and compliance pages are the starting point for current case information, and CBP’s own guidance covers the collection side.
Plan for bonds and cash flow
AD/CVD exposure affects bonding. CBP evaluates continuous bond sufficiency against duties, taxes and fees paid, so a jump in deposit rates can trigger a demand for a larger bond, and in some circumstances single transaction bonds may be required. Surety underwriters price AD/CVD risk seriously because the retrospective system leaves them exposed to unliquidated entries. Importers who plan cash flow around the deposit alone are frequently caught by the bond requirement instead.
Entry mechanics matter here too, particularly for sellers who ship in small parcels rather than containers. Changes to how low-value and postal shipments enter the country, including the new entry process we covered in CBP’s Entry Type 13 for mail imports, shift more shipments into formal processes where AD/CVD screening applies in the ordinary way.
What the exposure actually costs: a worked illustration
The arithmetic below is a simplified illustration using invented figures, not a quotation of any real case or rate. Its only purpose is to show how the layers stack and why deposit rates dominate landed cost decisions.
| Cost layer | Scenario A: no AD/CVD order | Scenario B: order applies at 42% AD plus 15% CVD |
|---|---|---|
| Commercial invoice value | $100,000 | $100,000 |
| Ordinary customs duty at 4% | $4,000 | $4,000 |
| Anti-dumping cash deposit | $0 | $42,000 |
| Countervailing cash deposit | $0 | $15,000 |
| Freight, insurance and clearance | $9,000 | $9,000 |
| Landed cost before final assessment | $113,000 | $170,000 |
| Open liability until liquidation | None beyond ordinary duty | Unresolved; final rate may be higher or lower than deposits |
Two things stand out. The duty layers alone move landed cost by roughly 50% in this illustration, which is more than most e-commerce gross margins can absorb. And the bottom row is the part that does not appear on any spreadsheet: until liquidation, the true cost of Scenario B is unknown.
That uncertainty is why some importers treat covered products as simply out of scope for their assortment, and why others restructure sourcing toward suppliers with established, low individual rates. Both are commercial decisions rather than compliance ones, and both should be taken with advice specific to the business.
Common mistakes and compliance risks to avoid
The failure patterns in this area are consistent and well documented in agency decisions. None of the following is exotic.
Treating the supplier’s assurance as diligence
A supplier statement that goods are not subject to an order carries no legal weight for the importer. The importer of record bears the duty obligation and the reasonable care obligation under 19 U.S.C. 1484, and cannot transfer either by contract. Written assurances are useful for commercial recourse against a supplier, and useless as a defense at the border.
Assuming a changed route changes the origin
Routing goods through a third country does not by itself change country of origin for AD/CVD purposes, and minor finishing operations often do not either. Commerce runs circumvention inquiries that can extend an order to merchandise completed or assembled in a third country, and CBP runs evasion investigations under the Enforce and Protect Act, codified at 19 U.S.C. 1517, which can impose interim measures during the investigation.
Those interim measures deserve emphasis. In an EAPA proceeding CBP may suspend liquidation and require cash deposits before the investigation concludes, which means an allegation alone can change an importer’s cost position for an extended period. Allegations in such proceedings are allegations until the agency determines otherwise, and this article does not characterize any named party’s conduct.
Assuming drawback will recover the money
Duty drawback is a genuine recovery mechanism for many ordinary duties, but the treatment of anti-dumping and countervailing duties is restricted, and CBP guidance has long treated these duties as generally ineligible for refund through drawback. Building an export-led recovery plan on the assumption that AD/CVD comes back is a serious planning error. The current position should be confirmed with CBP or a licensed customs broker before it is relied on.
Underestimating enforcement exposure
Penalty exposure runs beyond the duties themselves. Section 592 of the Tariff Act, at 19 U.S.C. 1592, provides for penalties for material false statements and omissions at levels that vary with culpability. Separately, the federal False Claims Act at 31 U.S.C. 3729 has been used in customs cases on a reverse false claims theory, and it permits private whistleblower suits. Competitors and former employees are a real source of these cases.
Missing the review calendar
Administrative reviews are requested during a defined anniversary window. An importer whose supplier does not request a review, and who does not request one itself where eligible, may find entries liquidated at a rate it had no part in shaping. Diarizing the anniversary month of every order that touches your supply chain is unglamorous and effective.
How the US and EU systems differ
Sellers who import into both markets should not assume the mechanics transfer. The most consequential difference is retrospective versus prospective assessment.
| Element | United States | European Union |
|---|---|---|
| Investigating authority | Commerce Department for margins, ITC for injury | European Commission, Directorate-General for Trade |
| Assessment basis | Retrospective: deposits at entry, final duty set in review | Generally prospective: the duty rate collected is normally the final amount |
| Public interest test | No general public interest test in the injury analysis | Union interest test can prevent measures otherwise justified |
| Lesser duty rule | Not applied as a general rule | Applied in defined circumstances, which can set duty below the dumping margin |
| Duration and review | Orders reviewed on a five-year sunset cycle | Measures normally expire after five years absent an expiry review |
| Retroactive collection | Possible via critical circumstances findings | Possible where imports were registered during the investigation |
The prospective EU model gives importers something the US model does not: reasonable certainty about the final cost of a shipment at the time it clears. The trade-off is that EU measures can be adjusted through interim reviews and other mechanisms, and the Union interest test introduces a discretionary element that is harder to predict from the economics alone. Both systems operate within the WTO framework, and both are subject to challenge before national courts and WTO panels.
How the rules can change and where to confirm the current details
Everything in this area is provisional. Orders are revoked at sunset, new orders appear, rates change with every administrative review, scope rulings redraw the boundaries of coverage, and circumvention findings extend orders to new countries. A case list that was accurate last quarter can mislead you this quarter.
There are also policy layers moving faster than the AD/CVD system itself. Section 232 national security actions, for instance, can add duties to products that already carry an order, and proceedings there run on their own clock, as our coverage of the Commerce proposal on 14 product categories illustrates. Stacking rules between these regimes are technical and change over time.
Primary sources worth checking directly
- The Federal Register for initiation notices, preliminary and final determinations, orders, scope rulings and sunset results. This is the authoritative record for US measures.
- Commerce, Enforcement and Compliance for case files, current rates, ongoing proceedings and the scope ruling process.
- The US International Trade Commission for injury determinations, hearing records and the underlying industry data.
- US Customs and Border Protection for AD/CVD messaging to ports, entry requirements, bond policy and evasion proceedings under the Enforce and Protect Act.
- The European Commission’s trade defence pages for EU investigations, measures in force and expiry reviews.
- The World Trade Organization’s anti-dumping resources for the multilateral rules that frame national practice.
Two habits separate importers who manage this well from those who do not. They check the case status at purchase order stage rather than at shipment stage, and they re-check before every repeat order rather than assuming last quarter’s answer holds. For readers building a broader picture of how these mechanisms fit with logistics, sourcing and cross-border strategy, our global trade guide maps the surrounding landscape.
Important: this is general information, not legal, tax or customs advice
This article is published for general information and education. It describes how anti-dumping and countervailing duty systems are structured, based on publicly available material from agencies including the US Department of Commerce, the US International Trade Commission, US Customs and Border Protection, the European Commission and the World Trade Organization. It does not tell you what to do in your own situation, and it is not a substitute for professional advice.
Rates, case lists, scope language, deadlines and procedural rules change frequently, and any figure or threshold mentioned here may have changed since publication. Where a specific number matters to a decision, verify it in the current Federal Register notice or the relevant agency record rather than relying on secondary sources, including this one.
If you are importing goods that may be covered by an order, or you are unsure whether they are, the appropriate step is to consult a licensed customs broker, a trade attorney or a qualified tax advisor who can review your specific products, suppliers and documentation. Where the classification or scope question is genuinely close, formal mechanisms exist, including CBP ruling requests and Commerce scope rulings, and a professional can advise whether either fits your circumstances.
Nothing here should be read as an allegation that any company has acted unlawfully. Regulator proceedings and third-party complaints described in general terms are proceedings and complaints, not findings, and outcomes are for the relevant agencies and courts to determine.
Frequently asked questions
What is the difference between anti-dumping and countervailing duties?
Anti-dumping duties address sales into a market at less than fair value by a foreign producer or exporter. Countervailing duties address subsidies provided by a foreign government to those producers. In the US both are authorized under Title VII of the Tariff Act of 1930, both are calculated by the Commerce Department, and both require an affirmative injury determination by the US International Trade Commission before an order can issue. Many products end up subject to both at the same time.
How do I find out whether my product is subject to an order?
Start with the scope language of any order covering similar merchandise from your country of origin, which is published in the Federal Register and available through Commerce’s Enforcement and Compliance records. Check the ITC’s investigation records and CBP’s AD/CVD messages as well. Because the written scope governs rather than the tariff classification, a close reading matters, and where the answer is unclear Commerce operates a formal scope ruling process. A licensed customs broker or trade attorney can advise on your specific product.
Is the cash deposit I pay at entry the final duty amount?
In the United States, generally no. The US uses a retrospective assessment system in which the deposit is an estimate and the final duty is determined later, usually through an administrative review, before CBP liquidates the entry. The importer of record owes any shortfall with interest, or receives a refund with interest if the final rate is lower. The European Union generally uses a prospective system where the collected amount is normally final, which is one of the most significant differences between the two regimes.
Who is liable if my supplier gave me incorrect information?
The importer of record carries the duty liability and the reasonable care obligation under 19 U.S.C. 1484. A supplier’s written assurance may support a commercial claim against that supplier, but it does not shift the customs obligation. This is why documentation establishing the actual manufacturer, and not only the trading company, is treated as basic diligence rather than an optional extra.
Can I avoid these duties by shipping through a different country?
Routing alone does not change country of origin for these purposes, and minor finishing or assembly operations frequently do not either. Commerce conducts circumvention inquiries that can extend an order to merchandise completed or assembled in third countries, and CBP investigates evasion allegations under the Enforce and Protect Act at 19 U.S.C. 1517, where interim measures can apply before any final determination. Genuine substantial transformation is a technical legal question and should be assessed by a professional rather than assumed.
Can duty drawback recover anti-dumping duties?
Generally not. CBP guidance has long treated anti-dumping and countervailing duties as ineligible for recovery through drawback, in contrast with many ordinary customs duties. Because drawback rules have been amended several times, confirm the current position with CBP or a licensed customs broker before building any recovery plan around it.
How long does an order stay in force?
US orders are subject to sunset review on a five-year cycle, in which Commerce and the ITC consider whether revoking the order would likely lead to continuation or recurrence of dumping or subsidization and of material injury. Orders that survive sunset review continue, and some have remained in force for decades across multiple reviews. EU measures normally expire after five years unless an expiry review results in their continuation.
What penalties apply if an importer gets this wrong?
Beyond the duties themselves plus interest, Section 592 of the Tariff Act at 19 U.S.C. 1592 provides for penalties tied to the level of culpability, ranging from negligence through gross negligence to fraud. Customs cases have also been pursued under the federal False Claims Act at 31 U.S.C. 3729 on a reverse false claims theory, which permits whistleblower suits by private parties. Exposure is fact specific, and anyone concerned about a past entry should seek advice from a trade attorney rather than self-diagnosing.
Do these duties apply to small parcel and e-commerce shipments?
Coverage follows the merchandise and its origin rather than the shipment size, so low-value and parcel shipments are not automatically outside an order. Changes to low-value and postal entry processes have moved more of these shipments into formal entry procedures where standard screening applies. Sellers moving goods in small consignments should assume the same scope analysis applies to them as to container importers, and verify current entry requirements with CBP or their broker.