Import Duty Calculator

Classify the product under its HTS (Harmonized Tariff Schedule) code — a ten-digit number that determines the base rate — then add any extra tariffs that apply to the country of origin. The official HTS search tool is free; for anything ambiguous, a customs broker’s classification is worth the small fee, because misclassification triggers penalties.

For US imports it is generally the transaction value: the price actually paid or payable for the goods, usually on an FOB basis — international freight and insurance excluded. Assists like molds or tooling you paid the factory for can be added. Undervaluing to save duty is fraud, and customs audits compare your invoices.

Largely no for commercial shipments — the US suspended the de minimis exemption for most imports in 2025, so small parcels that once entered duty-free are now assessed. Rules continue to shift with trade policy, so verify the current CBP treatment for your origin country before building a fulfillment model around duty-free parcels.

They can, and in recent years often have — additional tariffs have appeared, expanded and changed level with weeks of notice. Protect yourself by re-checking the rate before every purchase order, writing tariff-adjustment clauses into supplier agreements where possible, and keeping enough gross margin to absorb a several-point swing.