Import Duty & Customs Duty Calculator (2026)
Calculate statutory customs duties, import tariffs, trade remedy overlays (Section 301/232), merchandise processing fees (MPF $32.71 min / $634.62 max), and destination import VAT/GST across 10 major trading destinations.
Universal Customs Duty & Import Tariff Calculator Engine
Navigating cross-border trade requires exact landed cost calculations. Whether searching for a duty calculator, customs duty calculator, import duty calculator, or import tariff calculator, importers must account for all components assessed by destination customs authorities. Tariff rates are determined by the 6-digit WCO Harmonized System (HS) subheading, national 8-to-10-digit tariff extensions, country of origin rules, and statutory fee schedules.
How Customs Duty and Import Taxes Are Calculated
Customs duties are calculated as an ad valorem percentage or specific dollar rate applied against the customs valuation basis. In FOB (Free on Board) jurisdictions like the United States, Canada, and Australia, duty is assessed on invoice merchandise value at the port of export. In CIF (Cost, Insurance, Freight) jurisdictions like the UK, European Union, Japan, and South Korea, duty is assessed on the sum of product value, international freight, and marine insurance.
Statutory Processing Fees (US MPF & HMF)
For commercial shipments entering the United States, U.S. Customs and Border Protection (CBP) collects mandatory administrative fees. The Merchandise Processing Fee (MPF) is 0.3464% of FOB value, capped between a minimum of $32.71 and a maximum of $634.62 for formal entries. Waterborne ocean cargo is additionally subject to the Harbor Maintenance Fee (HMF) of 0.125%.
Explore Dedicated Calculator Tools
Landed Cost Calculator ↗
Full itemized breakdown of FOB product value, ocean/air freight, insurance, MFN duties, processing fees, and import VAT/GST.
US Customs Fee Calculator (MPF & HMF) ↗
Calculate exact U.S. Customs & Border Protection entry processing fees (MPF 0.3464%, min $32.71 / max $634.62) and HMF 0.125%.