Understand U.S. Trade Tariffs – Fast.
Welcome to TariffGlossary.com – your expert source for clear, up-to-date definitions of U.S. trade tariff terms. Whether you're a small business importer, policy watcher, or just curious about global trade, we make complex tariff topics simple and actionable.
What Is TariffGlossary.com?
TariffGlossary.com is a free educational resource that breaks down the language of U.S. trade policy and import tariffs. Our glossary entries explain the what, why, and how of critical tariff terms.
Section 301 Tariffs
Tariffs imposed by the U.S. in response to unfair trade practices by other countries, under Section 301 of the Trade Act of 1974.
Most Favored Nation (MFN) Status
A level of treatment accorded by one state to another in international trade, ensuring non-discriminatory trade advantages.
HTS Codes
Part of the Harmonized Tariff Schedule, these codes classify traded products for tariff rates and trade statistics.
De Minimis Rule
A threshold below which goods can be imported without incurring customs duties or taxes.
Tariff Engineering
A strategy to legally modify products or packaging to qualify for lower tariff rates.
Anti-Dumping Duty
A protectionist tariff imposed on foreign imports believed to be priced below fair market value to protect domestic industries.
Tools for Importers & Businesses
We don't just define terms – we help you use them. In addition to our growing glossary, check out our free tools:
Tariff Duty Calculator
Estimate the import tax on your next shipment based on HTS code and country of origin.
HTS Code Lookup Help
Learn how to classify your product correctly within the Harmonized Tariff Schedule.
Tariff Timeline
Follow key updates in U.S. tariff actions since 2018, with a chronology of policy changes.
Coming Soon: A downloadable Tariff Glossary PDF Guide for Importers.
Get Notified When AvailableWhy Tariffs Matter in 2025
In 2025, tariffs are more than just a political headline – they're affecting consumer prices, small businesses, and global supply chains. With sweeping new import duties under review and the de minimis exemption under fire, it's never been more important to understand what each tariff means and how it works.
TariffGlossary.com tracks these developments and explains them in context so you can stay informed and stay ahead.
43% of U.S. company earnings calls mentioned tariffs in Q1 2025 (up 190% QoQ)
76% of U.S. consumers say they anticipate changing shopping habits in response to tariffs
New wave of broad U.S. import tariffs is being proposed, affecting allies and rivals alike
De minimis exemption under review with potential impacts on e-commerce and direct imports
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Our content is trusted by businesses, professionals, and researchers looking to navigate the complexities of U.S. trade tariffs.
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