Know the duty
before it’s owed.
Enter an HTS code, country of origin, and customs value — get an instant estimate of Column 1 duty, Section 301 and 232 tariffs, and MPF & HMF fees. Free, no login, built by Stable’s trade-engineering team.
Every line of the duty, in one number.
The calculator assembles the full landed-duty picture the way a broker would — base rate, trade-remedy tariffs, and the federal user fees — from a single HTS code and country of origin.
Duty by HTS + origin
Enter a 10-digit HTS code and country of origin to see the general Column 1 rate, any special or FTA preferential rate, and the Column 2 rate where it applies.
Section 301 & 232 add-ons
Layers China Section 301 list tariffs and the steel and aluminum Section 232 duties on top of the base rate, so the estimate reflects what actually lands at entry.
MPF & HMF fees
Adds the Merchandise Processing Fee at 0.3464% (with its per-entry minimum and maximum) and the 0.125% Harbor Maintenance Fee on ocean shipments.
Preferential-rate aware
Flags when a free-trade agreement or preference program could lower the rate, and surfaces ADD/CVD exposure worth checking before you file the entry.
A genuinely useful tool, not a gated demo.
We built the estimator because importers and brokers ask the same question every day — what will this cost to bring in? So we made the answer free, and open to anyone.
Built by trade engineers
The estimator runs on the same tariff schedule and rulings data that power Stable’s production compliance tools — maintained by the team that builds customs software for brokers.
Free and open, no login
No account, no trial, no paywall. Open the calculator, run as many HTS codes as you like, and share the link with your team.
A window into the platform
It is the front door to Stable’s paid automation — classification, reconciliation, duty drawback, and CBP submission for teams doing this at entry-line scale.