Tariff & Customs Glossary
Plain-English definitions of the US import terms that actually affect what you pay — each with the real 2026 numbers and a quick example. Jump to a category, or click any term for the full explainer.
Fundamentals
Tariff Measures
Customs Process
Incoterms
Refunds & Drawback
Classification
Classification & Valuation
Compliance
Core Concept
Customs Fee
Duties & Tariffs
Duty Rates & Classification
Duty Rates & Trade Status
Entry & Clearance
Import Costs
Import Roles
Import Threshold
Quotas & Trade Policy
Refund Programs
Trade Professionals
Trade Remedies
Trade Remedy
Trade Statutes
Know the terms — now run your own numbers. The calculator stacks every layer (base reciprocal, Section 232, Section 301, MFN, the 15% EU deal) automatically.
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