WhatsMyDuty

Check any US tariff rate in seconds

Including all stacked duties — Section 301, 232, and reciprocal surcharges. Built for small importers navigating the most volatile tariff environment in a century.

Try: “coffee”, “steel wire”, “8517”, or “lithium battery”

17,000+
HTS codes searchable
397+
Active duty layers tracked
115+
Country surcharges monitored
Free
Always free to look up
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HS Code Lookup

Search by product description or HS code. See current MFN rates, special preferential rates, and all Chapter 99 cross-references.

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Tariff Stacking Calculator

Enter an HS code and country of origin. See the full stacked duty rate including base MFN, Section 301, 232, and reciprocal surcharges.

Calculate →
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Rate Change Alerts

Get notified instantly when tariff rates change for your products. We monitor the Federal Register and USITC daily.

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Why small importers need this

Tariffs can stack. A product from China might face a 0% base rate + 25% Section 301 + 10% reciprocal surcharge = 35% total. No free tool shows the complete picture.

Rates change constantly. Dozens of trade actions per year. The effective US tariff rate has jumped dramatically since 2025. Missing a change means overpaying — or worse, penalties up to 8x the lost duties.

Enterprise tools cost $15K–$500K/year. Small importers are left checking government websites manually. WhatsMyDuty gives you the same tariff intelligence for free.

Get alerted when tariff rates change

We'll monitor the Federal Register and USITC for changes and email you instantly.

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