How to estimate Section 301 tariff costs

Enter your HTS code above — the origin defaults to China (CN). The calculator identifies the applicable Section 301 list rate (7.5% or 25%), stacks it with the MFN base duty, and adds MPF and HMF to produce a total landed-cost estimate. Because Section 301 rates are periodically revised, verify the current rate against the USTR tariff list before a customs entry decision.

Section 301 tariff list overview

List 1 (July 2018): ~818 HTS lines at 25%, covering industrial machinery and aerospace parts. List 2 (August 2018): ~279 lines at 25%, covering chemicals and electronics components. List 3 (raised to 25% in May 2019): ~5,745 lines, the broadest tranche covering a wide range of intermediate goods and consumer products. List 4A (reduced to 7.5% in February 2020): ~1,864 lines covering consumer goods, clothing, and footwear.

Frequently asked questions

What is the Section 301 tariff?

Section 301 of the Trade Act of 1974 authorizes the US Trade Representative (USTR) to impose retaliatory tariffs on countries engaged in unfair trade practices. Starting in 2018, the US imposed Section 301 tariffs on Chinese goods in four tranches (Lists 1, 2, 3, and 4A), with rates ranging from 7.5% to 25% depending on the HTS code. These surcharges stack on top of the standard MFN base duty rate.

Which HTS codes are subject to Section 301 tariffs?

Approximately 8,700 HTS lines are subject to Section 301 tariffs, covering a wide range of products including electronics, machinery, auto parts, steel, aluminum products, furniture, and consumer goods. List 3 covers the broadest range at 25%; List 4A covers consumer goods at 7.5%. Enter your HTS code in the calculator above to check applicability.

Are Section 301 tariffs still in effect in 2026?

Yes. As of 2026, the USTR Section 301 tariffs on Chinese goods remain in effect following the 2024 four-year review, which increased rates on strategic sectors including EVs, batteries, solar panels, steel, and medical goods. The 7.5%–25% rates on general goods remain unchanged from the 2018–2020 tranche schedule. Always verify current rates against the official USTR tariff list before making customs decisions.

How does Section 301 tariff stack with the MFN base duty?

The total import duty for a China-origin product equals: MFN base duty rate + Section 301 surcharge rate. Both are applied to the customs (entered) value. For example, a product with a 5% MFN base duty and a 25% Section 301 surcharge will have a combined duty rate of 30% of customs value, before MPF and HMF.

Can I get a Section 301 exclusion or exemption?

USTR has periodically opened exclusion request processes allowing importers to petition for exemptions from specific Section 301 tariffs for particular HTS codes and products. Exclusions are product-specific and time-limited. Check the USTR website for active exclusion processes. A customs broker can assist with exclusion petitions and monitoring approved exclusion lists.

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