USTariffRates

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.

Checked Published by US Tariff Rates, one of the products compared
Track tariff changesAPI options

How this comparison was made

Tariff monitoring is a different job from one-time lookup: a tariff tracker keeps specific HTS codes, countries and duty programs visible after the first classification. This page compares tracking options on what each documents, with the source of every statement.

  • Every statement about another product restates that product's own public page as read on October 8, 2026, and links it. Where a vendor does not publish a fact, the table says so.
  • Statements about US Tariff Rates come from its published plans and API documentation, linked the same way.
  • Limits: we did not buy or test the paid tiers of other products; prices and features change after the check date; we publish US Tariff Rates, so weigh our own row accordingly.

What each option is compared on

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.

Side-by-side facts

As published by each product on October 8, 2026. Each cell links the page it was read from.

ProductPublished priceFree accessAPIUS duty layers statedCoverage
US Tariff Rates

US import tariff lookup, landed-cost calculator and REST API for HTS codes. Each duty program is returned as its own layer rather than one combined rate.

Free $0.00; Pro $49.00 a month or $399.00 a year; Team $199.00 a month or $1,590.00 a year; Enterprise quoted. sourceFree plan: 50 API requests a month, 10 rows per bulk lookup, 5 watchlist alerts. sourcePublic REST documentation and an OpenAPI 3.1 file. Hosted MCP server at mcp.ustariffrates.com, authenticated with the same API key. sourceLookup responses return a rate_stack of per-program duty layers (for example, base_mfn, section_122, section_232 and section_301), plus total_additional_pct and total_estimated. sourceUS imports only (US HTS). source
USITC HTS search and HTS REST API

The official online Harmonized Tariff Schedule, maintained by the USITC Office of Tariff Affairs and Trade Agreements.

No fee stated; search and API answered without login or key. sourcePublic, no account. sourceREST API at hts.usitc.gov/reststop answered without a key: /search returns JSON; /exportList returns JSON or CSV. sourcePublishes Chapter 99 headings (for example 9903.88.15) as separate HTS entries; does not compute a combined duty for a product. sourceUS only. source
Flexport Tariff Simulator

Web tool estimating US import duties from shipment value, origin and HTS code.

Free; a Pro tier requires a Flexport account, no separate price stated. sourceUp to 10 HTS codes without an account. sourceNo simulator API stated. sourceStates results are broken down by tariff type; programs not named. sourceUS import duties by country of origin; states it includes every current US HTS code. source

Options by job

US Tariff Rates tracker and watchlist

Use when: You need to monitor specific HTS code and country pairs after lookup.

Open tracker

Documented

  • Watchlist built around HTS code and country combinations.
  • Watched codes link to the calculator, lookup and account.
  • Free plan includes 5 watchlist alerts.

Limits

  • Alert value depends on correct initial HTS code selection and origin-country setup.
  • Not a binding classification ruling; only CBP issues those.
  • AD/CVD results (risk_layers) are screening context with the underlying orders, not entry liability. source

USITC HTS updates

Use when: You need to verify an official schedule change and its tariff language.

Open source

Documented

  • Official source for HTS schedule updates.
  • The text to confirm after a reported change.

Limits

  • Not a personalized watchlist for a broker's client portfolio.
  • The search site renders in the browser with JavaScript. source

Flexport Tariff Simulator

Use when: You want occasional duty checks with alerts inside a Flexport account.

Open source

Documented

  • States updates within 48 hours of an official tariff change.

Limits

  • States the simulator is updated within 48 hours of an official tariff change. source
  • Bulk upload, fees, comparisons and alerts require Pro. source

Federal Register and CBP notices

Use when: You need policy, enforcement and implementation detail.

Open source

Documented

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

Limits

  • Requires interpretation before it becomes an operational duty estimate.

Internal client watch spreadsheet

Use when: A small broker team tracks a short list of recurring products.

Documented

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

Limits

  • 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 searchUSITC DataWeb tariff and trade dataCBP 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 trackerTrade remediesTariff rate pages

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