Tariff Coverage
The Gateway Tariff Simulator provides real-time U.S. import duty estimates using official government data sources, continuously updated to reflect current trade policy. The simulator is designed for planning, sourcing decisions, and risk visibility—not post-entry compliance.
Included
- MFN (base) duty rates — USITC HTS 2026
- Section 301 (China) tariffs — Lists 1–4A
- Section 232 — steel & aluminum (50%), autos (25%), copper (50%), semiconductors (25%), timber (10–25%)
- Section 122 — global 10% tariff (effective Feb 24, 2026; expires Jul 24, 2026; USMCA exempt)
- IEEPA / Reciprocal — tracked historically (struck down by SCOTUS Feb 20, 2026)
- U.S. Free Trade Agreements (USMCA, KORUS, etc.)
- Country-specific exemptions & quotas
- Ad valorem, specific, and compound duties
- CBP government fees — MPF, HMF, ISF
Not Included
- Anti-dumping (ADD) & Countervailing (CVD) duties — manufacturer-specific
- PGA compliance costs (FDA, EPA, CPSC, USDA)
- Customs broker fees, surety bonds
- Freight, insurance, and inland drayage
- State or local taxes
ADD/CVD rates are case-specific and require shipment-level review by a licensed customs broker.
Data Sources & Monitoring
Gateway monitors official government sources continuously and updates tariff logic within 24–48 hours of publication.
| Data Type | Source Authority | Current Version |
|---|---|---|
| HTS Base Rates | USITC | 2026 Basic Edition |
| Section 301 Tariffs (China) | USTR + Federal Register | May 2026 |
| Section 232 Tariffs (Steel, Aluminum, Autos, Copper, Semis, Timber) | Commerce / BIS | May 2026 |
| Section 122 Global Tariff | CBP / Trade Act of 1974 | Effective Feb 24, 2026 |
| FTA Eligibility | USITC General Notes | 2026 |
| Country Exemptions & Quotas | USTR / Commerce | May 2026 |
| CBP Government Fees (MPF, HMF, ISF) | CBP statutory rates | Current |
Country Coverage
Gateway supports tariff calculations for all U.S. trading partners under the Harmonized Tariff Schedule, including all major manufacturing and sourcing countries.
Important: Gateway tariff estimates are intended for planning and sourcing decisions. Final duty liability is determined by U.S. Customs and Border Protection based on entry documentation and may vary.
Need full landed cost certainty?
Gateway customers receive end-to-end landed cost analysis, including AD/CVD screening, PGA compliance review, and entry-by-entry classification by licensed trade professionals.