Anti-Dumping Duties 2026 — How AD Tariffs Work & How to Check Your Imports
Anti-dumping (AD) duties are among the most overlooked costs in import planning — and the most expensive. They can add 15% to 376% on top of your regular import tariff. Here's what they are, how they're calculated, and how to check if your products are subject to AD orders.
Key point: Anti-dumping duties stack on top of MFN tariffs and Section 301 tariffs. A Chinese product with 3% MFN + 25% Section 301 + 150% AD duty faces a 178% total tariff rate. Always calculate the full stacked rate.
What Is an Anti-Dumping Duty?
Dumping occurs when a foreign company exports goods at a price below what it charges in its home market — or below the cost of production. This gives the exporter an unfair competitive advantage over domestic producers in the importing country.
Anti-dumping duties are the remedy. Under WTO GATT Article VI, any member country can impose additional import tariffs (anti-dumping duties) equal to the "dumping margin" — the gap between the export price and the product's normal value.
In the US, the Department of Commerce (DOC) calculates dumping margins; the International Trade Commission (ITC) determines injury to domestic industry. Both findings are required before an AD order is issued. In the EU, the European Commission handles both.
Real-World Anti-Dumping Duty Rates (US, 2026)
The following shows the AD duty rate range across known exporters for selected categories. Rates vary by specific company — always check your supplier's individual rate.
| Product / Origin | AD Rate Range | MFN Rate | Total (MFN+AD) |
|---|---|---|---|
| Steel products (China) | 25–150% | ~0–3% | 25–153% |
| Solar panels (China) | 15–238% | 3.5% | 18.5–241.5% |
| Tires (China) | 14–87% | 4% | 18–91% |
| Aluminum extrusions (China) | 33–376% | 5% | 38–381% |
| Furniture (China) | 7–216% | 0% | 7–216% |
| Shrimp (Vietnam) | 0.5–25.8% | 0% | 0.5–25.8% |
Note: Section 301 tariffs (7.5–25%) and Section 232 tariffs (25%) stack additionally on Chinese-origin goods and are not shown above.
How to Check If Your Product Has Anti-Dumping Duties
Find your HS / HTS code
Anti-dumping orders are applied to specific HTS codes. Use the HS lookup tool to get your product's correct 10-digit HTS code first — AD coverage is at the 8–10 digit level and two HTS codes in the same chapter may have very different treatment.
Check the US DOC AD/CVD Order List
Go to access.trade.gov → 'Antidumping and Countervailing Duty Orders' → search by HTS code or product description. This lists every active US anti-dumping and countervailing duty order with the applicable HTS codes and country of origin.
Identify your supplier's specific rate
Each exporter gets an individual AD rate in US orders. If your supplier was not individually reviewed, they get the 'all others' rate — often the highest. Annual administrative reviews can change rates. Get your supplier's most recent AD rate before calculating your landed cost.
Stack all applicable duties
Add MFN duty + Section 301 (if China) + Section 232 (if steel/aluminum) + AD + CVD. The total can easily exceed 100% on Chinese goods. Use the landed cost calculator to see the full stacked rate for your import scenario.
Example: Chinese Aluminum Extrusions — Total Duty Stack
Frequently Asked Questions
What is an anti-dumping duty?
An anti-dumping (AD) duty is an additional import tariff imposed on foreign goods that are sold below their 'normal value' — typically the price in the exporting country's home market or the cost of production. Anti-dumping duties are authorized under WTO rules (GATT Article VI) to offset the harm caused to domestic industry by unfairly priced imports. They are separate from and in addition to regular MFN tariffs.
How are anti-dumping duty rates calculated?
The AD duty rate equals the 'dumping margin' — the difference between the export price and the normal value, expressed as a percentage of the export price. For example, if a product is sold at $100 in the US but $160 at home, the dumping margin is 60%. AD rates are set per-exporter: Company A may face 25% while Company B faces 87% for the same product. Importers with no individual rate get the 'all others' rate, typically the highest calculated rate.
How do I know if my product has anti-dumping duties?
In the US, check the CBP ACE system or the Commerce Department's Antidumping and Countervailing Duty Orders list. In the EU, check the EU Trade Defence database. You need your product's HS code and the country of origin. Anti-dumping duties are tied to specific HS codes AND specific origin countries — a product may face AD duties from China but not from Vietnam.
Are anti-dumping duties on top of regular tariffs?
Yes — anti-dumping duties stack on top of every other applicable tariff. For Chinese goods entering the US, you may pay: MFN duty + Section 301 tariff + anti-dumping duty + countervailing duty. A Chinese steel product could realistically face 0% MFN + 25% Section 232 + 150% AD = 175% total. Always calculate the full stacked rate, not just the MFN rate.
What is the difference between anti-dumping and countervailing duties?
Anti-dumping (AD) duties target goods sold below fair market value by a foreign company. Countervailing duties (CVD) target goods subsidized by a foreign government. Both can be applied simultaneously to the same product — this is called 'double remedy.' WTO rules technically prohibit this in some circumstances, but both the US and EU apply them together routinely for Chinese goods.
How long do anti-dumping duty orders last?
US anti-dumping orders are reviewed every 5 years ('sunset reviews') and can be extended indefinitely if the ITC finds that revocation would likely cause injury. Many US AD orders have been in place for 20+ years. EU orders are reviewed every 5 years. During the order period, annual 'administrative reviews' can adjust individual company rates up or down based on their actual pricing.
Can I avoid anti-dumping duties by sourcing from a third country?
Only if the goods are genuinely manufactured or substantially transformed in that third country. 'Transshipping' — routing Chinese goods through Vietnam, Malaysia, or another country without substantial transformation — is customs fraud and carries severe penalties including seizure, 4x duty penalties, and criminal charges. CBP and EU customs actively investigate circumvention. Legitimate supply chain diversification (actually manufacturing in Vietnam) does work.
Related Guides
Check Your Product's Full Duty Stack
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