Official-source tariff data for US, EU & China

Look up duty rates. Classify products. Integrate via API.

One platform built on always-current, official-source tariff data: look up customs duty rates for the US, EU, and China, classify products against the global Harmonized System, and integrate via REST API — for trade professionals and the teams that build on it.

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Covers 43% of global imports
Effective dates on every result
From $24/mo, billed annually
Tariff data sourced from official authorities · USITC (HTSUS) · European Commission (TARIC) · China Customs Tariff

Operational tools and tariff intelligence, in one platform.

Two sets of tools in one platform: operational lookup and classification for daily trade work, and intelligence to monitor announced tariff actions, retaliations, and effective dates.

Tariff Tools

Operational tools for your daily import/export workflow. Search tariffs, browse schedules, classify products, and integrate via API.

  • Tariff Search Find customs duty rates by destination, origin, and product code
  • Tariff Schedule Browse standardized tariff schedules across supported markets
  • Smart HS Code Finder Structured classification with candidate codes, reports, and audit trails
  • Tariff API Integrate tariff data directly into your internal systems

Note: TariffBase provides decision-support information and is not legal or customs advice.

Tariff Intelligence

Strategic oversight and situational awareness. Stay informed about policy shifts, track tariff actions, and access expert analysis.

  • Tariff News Curated feed of tariff-related news and policy developments
  • Daily Summary Key trade developments delivered daily to keep you informed
  • Tariff Tracker Monitor tariff actions, retaliations, and policy timelines
  • Reports & Insights Expert analysis from academics, think tanks, and trade specialists
Learn More About Our Products

Built for teams that depend on accurate tariff data.

TariffBase brings tariff lookup, HS classification, and policy monitoring into a single self-service platform, sourced from official government schedules.

Predictable Subscription Pricing

Every plan includes unlimited tariff lookups and HS classifications per account, billed at a flat monthly or annual rate. No per-query fees.

Official-Source Data

Tariff schedules and measures are sourced from official government publications, with effective dates and source references on every result. Updated on a frequent schedule.

Self-Service Access

Look up tariff rates, classify HS codes, and check policy changes from any device, on your own schedule. Available 24/7.

For importers, exporters, distributors, freight forwarders, and developers & data teams.

Data & API

Tariff data your systems can consume

The same official-source tariff data, available as structured data and a REST API — so data teams and larger users can integrate, automate, and scale.

Explore the API Talk to us about data
REST API JSON responses with token authentication
Higher rate limits Up to 100/min and 50,000/day
CSV export Export query results to CSV
Nomenclature download Full HS / HTS / TARIC nomenclature

Latest Tariff & Trade Updates

Stay informed with curated trade news, policy shifts, and market developments that affect your business.

China’s Solar Stocks Whipsawed by Domestic Policies, US Tar…

  • Bloomberg
  • 07 Aug 2026

Chinese solar stocks were whipsawed this week by a combination of domestic efforts to end …

Read at Source Bloomberg

Trump imposes 15% tariff on key chip material to counter Ch…

  • BBC
  • 07 Aug 2026

The move aims to counter Chinese producers, which hold a monopoly in the global polysilicon …

Read at Source BBC

Trump likely to reject US industry requests for quicker pol…

  • Reuters
  • 06 Aug 2026

Trump likely to reject US industry requests for quicker polysilicon tariff, source says Reuters

Read at Source Reuters

US sets 15% polysilicon tariff, price floors to challenge C…

  • SCMP
  • 06 Aug 2026

The United States has announced new tariffs and price floors on polysilicon and related products, …

Read at Source SCMP

Trump Issues Tariffs on Key Ingredient for Electronics and …

  • NYT
  • 06 Aug 2026

The administration will impose a minimum import price for polysilicon, a key component for semiconductors …

Read at Source NYT

Trump Signed Order on Tariffs, Trade Actions on Polysilicon

  • Bloomberg
  • 06 Aug 2026

President Donald Trump has signed an order imposing tariffs on imported polysilicon used in semiconductors …

Read at Source Bloomberg
View All Tariff Updates

Timeline of Global Tariff Actions

Track the evolution of global trade policies. Our Tariff Tracker monitors tariff actions, retaliations, and key policy events with effective dates and references.

Simple, Transparent Pricing

No hidden fees. No per-query charges. Pick the plan that fits your needs.

Plans start at $24/month, billed annually ($30 monthly). All plans include a 10-day free trial.

View Plans & Pricing

Frequently Asked Questions

Common questions about TariffBase, our data, and how the platform works.

TariffBase is a tariff data platform built on official-source data for the US, EU, and China, for trade professionals and the data teams that integrate it. The platform is divided into two areas:

  • Tariff Tools: Tariff Search, Tariff Schedule, Smart HS Code Finder, and Tariff API - operational tools for daily trade work.
  • Tariff Intelligence: Tariff News, Daily Summary, Tariff Tracker, and Reports & Insights - strategic tools for monitoring policy developments.

All data is sourced from official government customs authorities and official publications. Our system is updated on a frequent schedule, with fast turnaround for major tariff actions. Each tariff result includes the effective date, source reference, and a change trail where applicable. We use a human-in-the-loop quality assurance process to ensure data accuracy.

TariffBase is built for trade professionals and data teams of every size who need reliable, official-source tariff data — and the ability to look it up, classify against it, or integrate it via API. This includes e-commerce importers and retailers, manufacturers and exporters, distributors and wholesalers, freight forwarders and logistics providers, and developers and data teams.

TariffBase starts at $24/month with annual billing ($30 on monthly billing). Every plan includes unlimited tariff lookups and HS code classifications per account at a flat subscription cost — there are no per-query fees, so the monthly bill is predictable regardless of how often the platform is used.

Yes. We offer a 10-day free trial so you can explore the platform and validate our data coverage before committing to a subscription. Our pricing is transparent and subscription-based, with monthly billing and an annual plan discount of 20% off.

The Smart HS Code Finder draws on a curated classification database sourced from official data to help you identify the correct HS codes for your products based on names or descriptions. It generates a structured classification report showing:

  • Top candidate codes with confidence indicators
  • Concise reasoning and references where available
  • Ability to save records for an internal audit trail

Note: This tool supports compliance decision-making but does not guarantee legal classification outcomes.

TariffBase currently covers the three largest import markets: the United States (HTSUS/HTS tariff schedule), the European Union (TARIC Combined Nomenclature), and China (China Customs Tariff). Together, these markets represent over 43% of global imports. We plan to add more countries over time.

Tariff classification is the process of assigning the correct Harmonized System (HS) code to a product for customs purposes. The HS code determines the duty rate you pay, whether trade agreements or preferential rates apply, and whether any restrictions or special measures are in effect. Incorrect classification can lead to overpaid duties, shipment delays, or customs penalties.

TariffBase's HS Code Finder draws on official classification databases to provide results with confidence scores. Each result includes a classification report with reasoning, so you can review and verify the suggested codes. The tool is designed to support compliance decisions -- for binding rulings, consult your customs authority.

Try TariffBase Free for 10 Days.

Unlimited US, EU, and China duty searches and HS classifications. From $24/month, billed annually. No credit card required for the trial.

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