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 customs broker software

Best Customs Broker Software for Tariff Workflows

Compare customs broker software workflows for HTS lookup, client tariff alerts, landed-cost estimates, rulings research, and API integrations.

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

See broker workflows API options

How we picked these tools

Customs broker software is not one product category. Entry filing, classification research, client quoting, landed-cost modeling, and tariff monitoring often happen in different systems. The best setup keeps those workflows connected.

Supports HTS lookup and classification review before entry filing.

Keeps client-specific duty exposure visible over time.

Connects tariff data to quotes, landed-cost estimates, and API workflows.

Leaves room for official ACE, HTS, and CROSS verification.

Comparison

Pick 1

US Tariff Rates for brokers

Broker teams that need tariff lookup, landed cost, alerts, and API access beside existing filing systems.

View broker workflow

Strengths

Fast HTS search and tariff-rate context for client questions.
Watchlist workflows for recurring client codes.
API and bulk lookup surfaces for broker operations and internal tools.

Watch-outs

Not a replacement for ABI entry filing software or ACE account management.

Pick 2

ACE Portal

Official CBP account, report, and trade-processing workflows.

Open source

Strengths

Official CBP system for trade account access and operational customs workflows.
Essential for importers, brokers, carriers, and other trade partners.

Watch-outs

Not designed as a client-facing tariff calculator or sales quoting layer.

Pick 3

ABI entry filing software

Preparing and transmitting customs entries.

Strengths

Core system of record for brokerage entry operations.
Fits production filing, document, and compliance workflows.

Watch-outs

May not be optimized for public tariff education, pre-sales quoting, or client alerts.
Tariff research quality varies by vendor and setup.

Pick 4

CBP CROSS and official research tools

Classification support and ruling review.

Open source

Strengths

Primary-source ruling research for ambiguous products.
Useful for documenting why a classification path was selected.

Watch-outs

Research tools do not replace operational quote, alert, or client workflow software.

Official sources to verify

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

CBP Automated Commercial Environment USITC Harmonized Tariff Schedule search CBP CROSS rulings search

FAQ

What software do customs brokers need for tariff workflows?

Most brokers need several layers: official ACE and filing systems for entries, HTS and CROSS research for classification, and client-facing tools for landed cost, tariff alerts, and recurring code monitoring.

Can US Tariff Rates replace ABI filing software?

No. US Tariff Rates is built for tariff lookup, landed-cost estimates, watchlists, bulk lookup, and API workflows. It complements, rather than replaces, entry-filing and ACE workflows.

Why would a broker use a tariff tracker?

A tracker helps brokers monitor client-specific HTS codes after the initial quote, so duty changes can be caught before they affect purchase orders, margins, or future entries.

Related guides and tools

Broker workflows Bulk HTS lookup Tariff API

Best Customs Broker Software for Tariff Workflows

How we picked these tools

Comparison

US Tariff Rates for brokers

Strengths

Watch-outs

ACE Portal

Strengths

Watch-outs

ABI entry filing software

Strengths

Watch-outs

CBP CROSS and official research tools

Strengths

Watch-outs

Official sources to verify

FAQ

What software do customs brokers need for tariff workflows?

Can US Tariff Rates replace ABI filing software?

Why would a broker use a tariff tracker?

Customs broker software FAQ

Frequently Asked Questions

Customs broker software FAQ

Frequently Asked Questions