TariffsAPI

We answer one question precisely: what is the real duty rate for this HTS code, from this country, today?

Most tariff tools scrape the USITC schedule and hand you a base rate plus a "Section 301: yes/no" flag, leaving you to do the math. The gap between the published base rate and the effective rate is where import costs actually live, and it is exactly what we resolve.

What we do

• 🧮 Stack the full duty picture by origin: MFN base + Section 301 + 232 + 122 + IEEPA, into one effective rate
• 🪪 Return the country-specific Chapter 99 codes, not just a boolean flag
• ✂️ Apply exemptions and suppression correctly (Annex II, USMCA, 232 stacking), so a measure that doesn't apply isn't charged
• 🎯 Stay honest about hard rates: formula, specific and reference rates are flagged, never silently coerced to 0%
• 📊 Ship a confidence score and warnings on every line

Who uses us Customs brokers, importers, and trade-compliance teams pricing real product catalogs across sourcing countries.

What we are not We do not classify products into HTS codes; you bring the code, we report the rate. Our answers are advisory, not a customs ruling.

Our Actors wrap the same resolver that powers tariffsapi.com . Start with the US Import Duty & Tariff Calculator: give it HTS codes and origins, get back one effective-rate line per pair.

📍 Full API, historical time-travel, and change-alert monitoring live at tariffsapi.com .