US Import Duty Calculator
Updated 2026-06-02Estimate US customs duties in 60 seconds. Pick country + product + value — we stack Section 122, 232, 301, and MFN automatically.
2-minute quiz · free · personalized
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The Supreme Court struck down the 2025 IEEPA tariffs and a $166B refund pool is open. See your personalized refund opportunity & filing roadmap.
Illustrative analysis only — not legal, tax, or customs advice. Eligibility and amounts are determined by CBP; filing is handled by licensed professionals.
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SCOTUS struck down IEEPA tariffs. You may be owed a refund.
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Landed Cost Calculator
Duty + MPF + HMF + de minimis check. The total bill at the port.
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How US Import Tariffs Are Calculated
US import duties are built from multiple overlapping tariff layers. Each layer is authorized by a different law and administered independently. The total duty you pay is the sum of all applicable layers — this calculator handles the stacking automatically.
Section 122 (10% — through July 2026)
Authorized under Section 122 of the Trade Act of 1974, this flat 10% reciprocal tariff took effect February 24, 2026 — replacing the IEEPA tariffs the Supreme Court struck down on February 20. Section 122 applies to all countries equally and expires after 150 days (around July 24, 2026) unless Congress extends it.
Section 232 Surcharges
Section 232 authorizes tariffs on imports that threaten national security. Since the April 6, 2026 restructure, articles made wholly of steel, aluminum, or copper face 50%, while derivative products substantially made of those metals face 25% — both applied to the full customs value. Autos and auto parts face 25%, semiconductors 25%, lumber 10%. These were NOT affected by the SCOTUS ruling and remain in force. (This calculator applies the 50% headline rate for covered metals.)
Section 301 (China-specific)
Section 301 authorizes additional duties on Chinese imports for unfair trade practices: 7.5% to 100% depending on the product list. Chinese EVs face 100%, solar panels 50%, EV batteries 25%. These stack on top of Section 122 — see the China tariff rate guide for the 35% effective math on a $10,000 electronics shipment.
MFN Base + Trade Agreements
Every product also has a Most Favored Nation (MFN) base rate from the HTS schedule — ranging from 0% on many electronics to over 20% on certain textiles and footwear. USMCA and KORUS can reduce or eliminate the MFN, but Section 122, 232, and 301 still stack on top.
Deep-dive guides: Section 301 vs 232, how stacking works, EU import duty, Taiwan sourcing, HTS vs HS code, how to find your HTS code, clothing tariffs by country, the $800 de minimis change.