Gateway continuously monitors official U.S. trade actions and implements changes as they are published.
Policy changes are reflected in the Tariff Simulator within 24-48 hours where applicable.
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Monitoring: Federal Register, White House, USTR, USITC
Reviewed by Gateway: June 11, 2026
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Free U.S. Tariff Calculator 2026
Calculate import duties with Section 301, 232, and Section 122 tariff — updated post-SCOTUS
USITC Data Live Policy Updates Gateway AIUSITC 2026
Section 122: Currently 10% (CBP enforced rate)
Trump announced increase to 15% max via Truth Social Feb 21 — no formal Executive Order issued yet. Calculator reflects the 10% rate currently collected by CBP. Expires Jul 24, 2026.
Data sources, monitoring, and review process behind every estimate.
1
Data Pipeline
Base duty rates sourced directly from USITC Harmonized Tariff Schedule (General rates of duty, Column 1).
Section 301 China tariffs mapped to Lists 1–4A per USTR proclamations and Federal Register notices.
Section 232 duties on steel/aluminum (50%), autos (25%), copper (50%), semiconductors (25%), and timber (10–25%) applied per Chapter 99 subheadings. Pharmaceutical investigation ongoing.
Section 122 global 10% tariff applied per Trade Act of 1974 (effective Feb 24, 2026). 15% increase announced but no formal order issued. USMCA exempt. Expires Jul 24, 2026.
IEEPA / Reciprocal tariffs tracked historically — struck down by Supreme Court on Feb 20, 2026.
2
Real-Time Policy Intelligence
Automated Federal Register monitoring for tariff-related actions from USTR, BIS, CBP, and ITC.
Human review and approval before policy changes are reflected in calculations.
Public changelog published with citations to official source documents.
Official Data Sources
Disclaimer: This calculator provides duty estimates for planning purposes only. Actual duties may vary based on CBP classification rulings, valuation adjustments, AD/CVD orders, and other factors. Gateway Lines is not a licensed customs broker. Please always seek guidance and advice from a licensed customs broker for official determinations.
Data last synchronized: April 2026·Policy intelligence reviewed by Gateway trade compliance team
Frequently Asked Questions
Common questions about US import tariffs and duties
QCan I compare tariff rates across multiple countries?
Yes. Gateway lets you calculate the same HTS code against any sourcing country and see the side-by-side delta — including Section 301 (China), Section 122 (most countries), Section 232 (steel, aluminum, autos, copper, semiconductors), MFN base rate, MPF, HMF, and ISF. Use the country comparison view or the "Compare alternatives" button after calculating to see Vietnam, Mexico, India, and other lower-tariff sourcing options ranked.
QIs this good for enterprise importers?
Yes. Gateway is built for both individual importers and enterprise compliance teams. Enterprise features include 30,000+ HTS code coverage, API access for embedding tariff intelligence in your own ERP/TMS, bulk classification, real-time tariff change alerts, audit-grade exportable reports, and dedicated support. Free for individual use; talk to sales for volume API access and enterprise SLAs.
QWhat is Section 301 tariff?
Section 301 tariffs are additional duties on Chinese-origin goods under the Trade Act of 1974, charged on top of the standard MFN rate. They cover thousands of products across USTR Lists 1 through 4A, and rates have increased over time on strategic sectors such as electric vehicles, semiconductors, batteries, and medical goods. Because USTR updates these rates periodically, Gateway shows the exact list and current rate for your specific product.
QWhat is Section 232 tariff?
Section 232 tariffs are national security duties under the Trade Expansion Act of 1962, covering steel, aluminum, copper, automobiles and parts, semiconductors, and pharmaceuticals. Rates and country exemptions change as new proclamations and trade agreements take effect, and several partners have negotiated reduced rates. Gateway displays the current rate for your specific product and country of origin.
QHow do I find my HTS code?
Use Gateway's intelligent search to describe your product in plain English. Our AI matches your description to the correct HTS classification from our database of 30,000+ codes validated against USITC HTS 2026.
QIs the tariff calculator free?
Yes, Gateway Tariff Calculator is completely free. Search HTS codes, calculate Section 301 and Section 232 tariffs, compare sourcing countries, and get AI-powered explanations at no cost.
QHow accurate is this calculator?
Gateway draws base duty rates from the USITC Harmonized Tariff Schedule and layers Chapter 99 trade measures such as Section 301, Section 232, and Section 122, each with official source citations from CBP, the Federal Register, and USTR. Rates are kept current as official actions are published, so you see the duties that apply today rather than a static estimate.
QWhat is the Section 122 tariff?
Section 122 is a temporary global import surcharge under the Trade Act of 1974, introduced in 2026 after the Supreme Court struck down the earlier IEEPA tariffs. It is capped by statute and time limited, and it exempts USMCA-origin goods from Canada and Mexico along with products already covered by Section 232. Because its rate and legal status can change, Gateway reflects the rate CBP is currently enforcing.
QWhat happened to the IEEPA tariffs?
The Supreme Court struck down IEEPA-based tariffs in 2026, including the reciprocal tariffs and the fentanyl and trafficking tariffs on Canada, Mexico, and China. The administration replaced them with a temporary Section 122 surcharge under the Trade Act of 1974. Duties paid under the former IEEPA tariffs may be refundable through CBP, and Gateway reflects the rates CBP currently enforces.
