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Import duty calculator

Duty on a US import is normally a percentage of the declared customs value of the goods — not the retail price, and not including freight unless your terms of sale roll it in. Look up the HTS code, enter your values, and get an estimate.

Look up a code above to see an estimated duty.

Estimate only. Duty is calculated on the customs value under the applicable rate column and may be increased by antidumping, countervailing, Section 232 or Section 301 duties, merchandise processing fees and harbor maintenance fees. This is not legal, tax or customs advice — confirm with a licensed customs broker or a CBP binding ruling.

How US import duty is calculated

  1. 1. Classify the goods. Find the 10-digit HTS code that best describes what you're importing. The code sets the rate — everything else follows from it.
  2. 2. Determine the customs value. Usually the transaction value: the price actually paid or payable for the goods, plus certain additions such as assists and royalties. International freight and insurance are excluded from the dutiable value on most US entries.
  3. 3. Pick the right rate column. Most countries get the general (Column 1) rate. If the goods qualify under a free trade agreement they may get the special rate instead. A handful of countries fall under Column 2.
  4. 4. Apply the rate. Ad valorem rates are a percentage of value. Specific rates are charged per kilogram, litre or unit. Compound rates are both.
  5. 5. Add the extras. Merchandise processing fee, harbor maintenance fee, and any Section 232, Section 301, antidumping or countervailing duties that apply to your code and origin.

Limits of this estimate

This calculator uses only the rates published in the tariff schedule for the code you select. It does not know your rules-of-origin eligibility, does not include additional trade-remedy tariffs, and cannot confirm your classification is correct. Treat the result as a planning figure. For a binding answer, use a licensed customs broker or request a CBP binding ruling.

Full duty calculation guideDecode a code first

Source: USITC Harmonized Tariff Schedule, 2026 Basic Edition, Revision 16. Rate text is reproduced verbatim from the official export; category paths and duty estimates are derived.

Data loaded August 18, 2026.Report an errorHow this data is built