Rates without a source
A duty figure in a spreadsheet with no record of which tariff revision or which rate column it came from.
US import duty
US import duty estimates you can defend
Senda estimates US import duty against the full Harmonized Tariff Schedule, names the revision it used, and keeps the General, Special and Column 2 rates apart. When a rate depends on something it does not know, it says “cannot determine” instead of guessing.
The problem
What this usually looks like today.
Preference applied by hope
A free-trade rate assumed because the goods came from a partner country, without checking the program the line actually allows.
Confident wrong answers
Calculators that return a number for a per-unit rate or an unresolved origin, when the honest answer is that it depends.
In Senda
How the work gets done instead.
- 1
Classify from the schedule
HS suggestions drawn only from real US subheadings, ranked with disclosed AI assistance, and strongest for wood, pulp, paper and steel.
- 2
Estimate with the columns apart
The General, Special and Column 2 rates shown separately, with the unit of quantity and the origin deciding which applies.
- 3
Know which revision you used
Every estimate names the tariff revision behind it and whether that revision is still current.
Where it stops
What it will not do.
Worth knowing before you book anything.
- An estimate, not a determination: every figure carries a reminder to confirm with your licensed customs broker, because a listed rate is not always the rate collected.
- Per-unit and compound rates, ambiguous subheadings and unresolved origins return “cannot determine”.
- Senda does not file entries. Korea and EU rates are indicative only, for the wood, pulp and paper chapters.
Questions
What people ask us.
Is there a free version?
Yes. The full US tariff schedule — every subheading with its General, Special and Column 2 rates — is free to browse on this site, and the free US import duty calculator estimates duty for any code, both without an account. The Senda workspace adds HS code suggestions, in the same place as your team's orders and shipments.
Does it include Section 301 or anti-dumping duties?
Senda shows the rate published in the tariff schedule for the subheading. Anti-dumping and countervailing duties and Chapter 99 measures can change what is actually collected, so confirm those with your broker.
Which countries does it cover?
Imports into the United States, from any origin. Korea and EU rates are indicative and cover the wood, pulp and paper chapters only.
Start with your real workflow
See it on one of your own orders.
Tell us how your team works today and we'll walk one real order-to-shipment workflow with you before anything is signed.