An HTS (Harmonized Tariff Schedule) code is a 10-digit classification number used by US Customs and Border Protection to identify imported goods and determine applicable duty rates. The first 6 digits are standardized internationally under the Harmonized System, while the last 4 digits are specific to the United States.

How are US tariff rates determined?

US tariff rates are set by Congress and administered by CBP. The base MFN (Most Favored Nation) rate applies to most trading partners. Additional special tariffs — such as Section 301 (China), Section 232 (steel and aluminum), and Section 122 (temporary global surcharge, 10–15% per Proclamation 11012) — may apply on top of the base rate. Note that Section 122 does not stack with Section 232: goods already subject to §232 actions are excluded from the §122 surcharge.

What are Section 301 tariffs?

Section 301 tariffs are additional duties imposed on Chinese goods under the Trade Act of 1974, in response to unfair trade practices. They range from 7.5% to 100% depending on the product category and apply on top of the standard MFN duty rate. Four separate lists cover approximately $370 billion of annual imports.

How do I find the tariff rate for my product?

Use the search bar on this site to describe your product in plain English — our AI identifies the correct HTS code and shows all applicable duty rates including base MFN, Section 301, Section 232, and any other overlays. You can also browse by HTS chapter or product category.

What is a landed cost?

Landed cost is the total cost of importing a product to its destination, including the product price (FOB), ocean or air freight, insurance, US Customs duties, Merchandise Processing Fee (MPF), Harbor Maintenance Fee (HMF), and any other applicable surcharges. It represents the true cost of an imported good before domestic distribution.

An HTS (Harmonized Tariff Schedule) code is a 10-digit classification number used by US Customs and Border Protection to identify imported goods and determine applicable duty rates. The first 6 digits are standardized internationally under the Harmonized System, while the last 4 digits are specific to the United States.

How are US tariff rates determined?

US tariff rates are set by Congress and administered by CBP. The base MFN (Most Favored Nation) rate applies to most trading partners. Additional special tariffs — such as Section 301 (China), Section 232 (steel and aluminum), and Section 122 (temporary global surcharge, 10–15% per Proclamation 11012) — may apply on top of the base rate. Note that Section 122 does not stack with Section 232: goods already subject to §232 actions are excluded from the §122 surcharge.

What are Section 301 tariffs?

Section 301 tariffs are additional duties imposed on Chinese goods under the Trade Act of 1974, in response to unfair trade practices. They range from 7.5% to 100% depending on the product category and apply on top of the standard MFN duty rate. Four separate lists cover approximately $370 billion of annual imports.

How do I find the tariff rate for my product?

Use the search bar on this site to describe your product in plain English — our AI identifies the correct HTS code and shows all applicable duty rates including base MFN, Section 301, Section 232, and any other overlays. You can also browse by HTS chapter or product category.

What is a landed cost?

Landed cost is the total cost of importing a product to its destination, including the product price (FOB), ocean or air freight, insurance, US Customs duties, Merchandise Processing Fee (MPF), Harbor Maintenance Fee (HMF), and any other applicable surcharges. It represents the true cost of an imported good before domestic distribution.

Best tariff tracker

Best Tariff Tracker Tools

Compare tariff tracker tools for monitoring HTS code changes, trade remedy exposure, Section 301 and Section 232 updates, and importer watchlists.

Updated June 2026Built for importer, broker, and compliance workflows

Track tariff changes API options

How we picked these tools

Tariff monitoring is a different job from one-time lookup. The best tracker keeps specific HTS codes, countries, and duty programs visible after the initial classification decision.

Monitors specific HTS codes and origin countries instead of broad headlines only.

Separates base duty, special tariffs, and trade-remedy exposure.

Creates an audit trail when rates or program coverage change.

Sends alerts to the people responsible for pricing, sourcing, or customs compliance.

Comparison

Pick 1

US Tariff Rates tracker and watchlist

Brokers and import teams monitoring specific codes after lookup.

Open tracker

Strengths

Watchlist workflow built around HTS code and country combinations.
Connects tariff monitoring to calculator, lookup, and account workflows.
Designed for operational alerts rather than only news scanning.

Watch-outs

Alert value depends on correct initial HTS code selection and origin-country setup.

Pick 2

USITC HTS updates

Verifying official schedule changes and tariff language.

Open source

Strengths

Official source for HTS schedule updates.
Best place to confirm tariff text after a reported change.

Watch-outs

Not a personalized watchlist for a broker's client portfolio.

Pick 3

Federal Register and CBP notices

Policy, enforcement, and implementation updates.

Open source

Strengths

Primary-source context for new measures, exclusions, and implementation details.
Useful for compliance teams and trade counsel.

Watch-outs

Requires interpretation before it becomes an operational duty estimate.

Pick 4

Internal client watch spreadsheet

Small broker teams with a short list of recurring products.

Strengths

Simple to start and easy to align with account-management notes.
Can capture client-specific context that public tools do not know.

Watch-outs

Manual monitoring is easy to miss when policy changes quickly.
Hard to maintain rate provenance across many HTS codes.

Official sources to verify

Use these primary sources when a tariff decision needs legal, operational, or audit review.

USITC Harmonized Tariff Schedule search USITC DataWeb tariff and trade data CBP rulings and legal decisions

FAQ

What is a tariff tracker?

A tariff tracker monitors selected HTS codes, origin countries, and duty programs so importers can see when a duty stack changes after the first lookup or quote.

Who needs tariff alerts?

Customs brokers, import managers, sourcing teams, ecommerce operators, and finance teams benefit from alerts when tariff changes can affect quotes, margins, or purchase orders.

Should tariff tracking include trade remedies?

Yes. Base duty changes are only one layer. AD/CVD, Section 301, Section 232, and other special programs can matter more than the ordinary tariff rate.

Related guides and tools

Tariff tracker Trade remedies Tariff rate pages

Best Tariff Tracker Tools

How we picked these tools

Comparison

US Tariff Rates tracker and watchlist

Strengths

Watch-outs

USITC HTS updates

Strengths

Watch-outs

Federal Register and CBP notices

Strengths

Watch-outs

Internal client watch spreadsheet

Strengths

Watch-outs

Official sources to verify

FAQ

What is a tariff tracker?

Who needs tariff alerts?

Should tariff tracking include trade remedies?

Tariff tracker tools FAQ

Frequently Asked Questions

Tariff tracker tools FAQ

Frequently Asked Questions