The Most Favored Nation (MFN) rate is the standard tariff rate applied to imports from countries that have normal trade relations (NTR) with the United States. In the Harmonized Tariff Schedule, MFN rates appear in the "Column 1 General" column. Despite the name, "most favored" does not mean preferential — it is the baseline rate that applies to the vast majority of U.S. trading partners.
Why It Matters for Importers
The MFN rate is the default duty rate your goods will pay unless a preferential rate applies. Understanding this distinction is critical for cost planning. If your product qualifies under a free trade agreement — such as USMCA for goods from Mexico or Canada — the duty rate can drop to 0%. If your product comes from a country without normal trade relations (such as North Korea or Cuba), the Column 2 rate applies, which is often prohibitively high.
MFN rates are also the starting point on top of which additional tariffs are stacked. Section 301 tariffs on Chinese goods, for example, are assessed in addition to the MFN rate. A product with a 5% MFN rate and a 25% Section 301 tariff faces an effective rate of 30%.
Key Details
- Nearly all countries have NTR status with the U.S. The exceptions are a small number of sanctioned or embargoed nations.
- MFN rates are bound under World Trade Organization (WTO) commitments, meaning the U.S. has agreed not to raise them above certain levels for WTO member countries.
- The Column 1 Special column lists preferential rates under specific trade agreements (USMCA, CAFTA-DR, etc.) or preference programs (GSP, AGOA, etc.).
- MFN rates vary enormously by product — from 0% on many raw materials to over 30% on certain textiles and footwear.
Reducing Your Effective Duty Rate
If your goods qualify under a free trade agreement, claiming the preferential rate instead of the MFN rate can produce substantial savings. However, qualification requires meeting specific rules of origin, maintaining proper documentation, and making the claim correctly on your customs entry. Claiming a preferential rate without proper documentation exposes you to penalties.
For a detailed look at how preferential rates work under USMCA, see our guide on USMCA rules of origin.