Built on Official U.S. Trade Law — Not Approximations
Gateway’s Tariff Simulator is powered by USITC-verified Harmonized Tariff Schedule (HTS) 2025 data, sourced directly from the U.S. International Trade Commission and updated to reflect current U.S.
customs law.
This includes:
Most Favored Nation (MFN) base duty rates
Full Chapter 99 coverage, including active and conditional provisions
Official HTS descriptions, legal notes, and annotations
The result: tariff calculations that align with current statutory and regulatory requirements, not outdated reference tables or simplified assumptions.
Full Chapter 99 & Trade Authority Evaluation — As CBP Applies It
Unlike conventional calculators, Gateway evaluates all applicable U.S. trade authorities, not just base HTS rates.
This includes:
Section 301 (China tariffs)
Section 232 (steel, aluminum, autos)
IEEEPA emergency tariffs
Free Trade Agreement (FTA) eligibility indicators (USMCA, KORUS, and others)
Gateway applies one provision per authority type, while allowing lawful stacking across authorities when permitted — mirroring how U.S. Customs and Border Protection actually assesses duties at entry.
This is not theoretical compliance. It is operational accuracy.
“Why Am I Paying This?” — Explained, Not Obscured
For the first time, tariff exposure is explainable by design.
Each calculation includes an optional AI-assisted tariff explanation that converts complex trade law into clear, plain-English answers:
Why a duty applies
Which legal authority is driving the cost
Whether exclusions were evaluated
What sourcing changes could reduce exposure
This transforms tariff compliance from a black box into a decision framework for finance, procurement, and leadership teams.
Country-by-Country Sourcing Intelligence — Instantly Comparable
Gateway enables real-time sourcing comparisons across 13+ countries, allowing users to evaluate:
Effective duty rates by country of origin
Estimated savings versus China sourcing
Free-trade eligibility where applicable
This shifts the tariff conversation from cost discovery to strategic sourcing optimization.
Explicit Compliance Boundaries — No Hidden Assumptions
Gateway is deliberately transparent about scope.
Included:
HTS base duties
Section 301, 232, and IEEPA tariffs
Chapter 99 stacking logic
Not Included:
AD/CVD (manufacturer-specific)
MPF, HMF
PGA fees (FDA, EPA, etc.)
Brokerage or logistics costs
Users know exactly what the estimate represents — and when broker or legal review is required.
Designed for Real-World Trade Decisions
The Gateway Tariff Simulator is built for:
Importers assessing China exposure
Finance teams forecasting landed-cost volatility
Procurement teams evaluating alternative sourcing
Founders and operators navigating unstable trade policy
Each calculation can be exported and shared as a professional tariff exposure report for internal review or broker validation.
Now Live! The Gateway U.S. Tariff Simulator is available now.
Visit: https://tariff.gatewaylines.com
In an era of volatile trade policy and opaque duty exposure, Gateway delivers what the industry has lacked: accuracy, explainability, and decision-grade tariff intelligence.