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Policy Intelligence

U.S. Import Tariff Calculator

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

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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 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.

Duty Analysis

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Estimated Tariff Exposure

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Import Cost Breakdown

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Section 301
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Section 232
Steel/Aluminum only
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USITC-Verified·2026 Rates
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Map shows policy-level risk tiers. Calculate a tariff above to see actual duty exposure by country.

Data Sources & Methodology

Authoritative data, updated daily, verified against official government sources

USITC HTS Database

Official Harmonized Tariff Schedule maintained by the U.S. International Trade Commission. Base duty rates for 30,000+ product classifications.

usitc.gov

Federal Register

Official daily publication for Presidential proclamations, executive orders, and agency rules. Source for Section 301 and Section 232 tariff actions.

federalregister.gov

USTR Trade Policy

Office of the U.S. Trade Representative. Authoritative source for China tariff lists, exclusions, and trade remedy actions under Section 301.

ustr.gov
30,000+
HTS Codes Indexed
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200+
Countries Covered

How We Calculate Tariffs

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 steel/aluminum duties applied per Chapter 99 subheadings (9903.80.xx)
  • 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 Feb 20, 2026)

Real-Time Policy Intelligence

  • Automated Federal Register monitoring for tariff-related actions from USTR, BIS, CBP, and ITC
  • Gateway intelligence extracts affected HTS chapters, countries, effective dates, and duty rates
  • Human review and approval before policy changes are reflected in calculations
  • Changelog published with citations to official source documents

Official Data Sources

U.S. International Trade CommissionOffice of the U.S. Trade RepresentativeU.S. Customs and Border ProtectionU.S. Department of CommerceNational Archives and Records Administration

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: February 2026·Policy intelligence reviewed by Gateway trade compliance team

Frequently Asked Questions

Common questions about US import tariffs and duties

What do I get with a free Gateway account?

Gateway accounts unlock unlimited tariff searches, saved HTS codes, exportable duty reports, country comparison tools, AI-powered tariff explanations, and real-time rate change alerts. All features are completely free for importers.

What is Section 301 tariff?

Section 301 tariffs are additional duties on Chinese imports under the Trade Act of 1974, ranging from 7.5% to 25% depending on the product list (Lists 1-4A). Gateway shows exactly which list your product is on.

What is Section 232 tariff?

Section 232 tariffs are national security duties on steel and aluminum imports. Rates are set by presidential proclamation and apply to most countries. Gateway displays the current rate for your specific product and origin country.

How 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.

Is 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.

How accurate is this calculator?

Gateway pulls rates directly from USITC HTS 2026 database and updates weekly. Our Chapter 99 coverage includes Section 301, Section 232, and Section 122 tariffs with official source citations. IEEPA tariffs were struck down by the Supreme Court on Feb 20, 2026.

What is the Section 122 tariff?

Section 122 is a global emergency tariff effective Feb 24, 2026 under the Trade Act of 1974, replacing the IEEPA tariffs struck down by the Supreme Court. CBP is currently collecting at 10%. The administration announced an increase to the statutory maximum of 15%, but no formal Executive Order has been issued. The 15% cap expires July 24, 2026 (150-day limit). It applies to all imports except USMCA partners (Canada/Mexico) and products already covered by Section 232.

What happened to the IEEPA tariffs?

The Supreme Court struck down IEEPA-based tariffs on Feb 20, 2026 in a 6-3 ruling. These included the reciprocal tariffs on China (34%), EU (20%), and other countries. On Feb 22, the administration signed Section 122 under the Trade Act of 1974. CBP began collecting at 10% on Feb 24. A 15% increase was announced via Truth Social but no formal implementing order has been issued. Our calculator reflects the 10% rate currently enforced by CBP.