Trusted sources of U.S. Tariff Information and Duty Rates

ByAlegrant editor

Where to Find Accurate U.S. Tariff Information?

With the current volatility of U.S. Trade Policy, one of the biggest challenges for businesses is knowing which tariff applies to your goods, and staying on top of frequent changes. Get it wrong, and you risk overpaying duties, shipment delays, or compliance penalties.

To help, we’ve pulled together the most reliable sources of U.S. tariff and origin information and added our insight on when and how to use them.

🇺🇸 U.S. Sources

Harmonized Tariff Schedule (HTS). The official U.S. tariff database. Essential for finding duty rates by HS code.

Customs Binding Ruling For precise duty information on a specific item, you can request a ruling from CBP before shipping. This ensures your product is classified correctly.

Local CBP port can be contacted for guidance.

U.S. Local customs representatives (US customs brokers): They can also perform customs clearance simulations. The correct duty rate is determined by CBP, not the importer and the importer (Importer of Record) is legally responsible for accuracy.

U.S. Rules of Origin: Congressional Research Service – International Trade (Updated March 3, 2020): U.S Rules of Origin

🇪🇺 EU Sources

Access2Markets (European Commission)

  • A practical tool for EU exporters. It provides U.S. import duties, HS codes, and non-preferential origin details.
  • A new section (UCD) is showing “Reciprocal Duty”.


⚠️ Note: It cannot simulate triangular trade (e.g., EU-origin goods shipped from China).

🇬🇧 UK Sources

UK Government’s Step-by-Step Guide: A structured tool for UK traders to determine U.S. import duties..

🌍 International Sources

ITC Market Access Map: The International Trade Centre access map shows the latest U.S. reciprocal import tariff rates for 69 countries.

⚠️ Like for the EU access database, it is not possible to enter both the origin and the country of shipment of the goods. For instance, goods of UK origin shipped from China will show the Chinese duty rate.

Atlantic Council Tracker: this think tank, has developed a tracker Provides a clear log of tariff changes with links to regulations.r

Information vs. Application

Knowing where to find tariff information is only part of the picture. The real challenge is applying it correctly to your products, supply chains, and trade flows.

📩 Need certainty about U.S. tariffs on your products?
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