Free tool · US imports
Tariff and duty calculator
Add up every duty layer on an import, from base duty to Section 301 and Section 232, plus customs fees. See your total customs cost per unit, test a tariff change, and compare two countries of origin. Nothing you type is saved.
| Charge | Rate | Amount | Per unit |
|---|
Track every tariff layer by product.
TrueLanded keeps each SKU's duty layers with an as-of date, flags rates you haven't checked lately, and runs tariff what-ifs across your whole catalog.
How it works
How stacked tariffs add up
1. Start with customs value
US duty is charged on the customs value, usually the price paid to the supplier. International freight and insurance are generally not included.
2. Add each duty layer
Base duty comes from the product's HTS code. Section 301, Section 232, and other add-on tariffs are separate percentages, and many stack on top of base duty.
3. Add the customs fees
MPF applies to formal entries: 0.3464% of value, at least $34.58 and at most $670.86 per entry (rates as of October 1, 2026). HMF adds 0.125% on ocean shipments.
Not every layer stacks in every case; some tariffs exclude goods already covered by another, and rates change often. Look up your HTS code at hts.usitc.gov and confirm classifications and rates with a licensed customs broker. This calculator is a planning aid, not customs advice.
What is a duty layer?
A US import can owe several duties at once: the base (MFN) rate from the tariff schedule, plus add-on tariffs such as Section 301 on many Chinese goods or Section 232 on steel and aluminum products. Each is a percentage of the customs value, and together they make your total duty rate.
Why compare countries of origin?
Add-on tariffs often depend on where a product is made, so the same item can carry very different duty from two countries. Comparing them, including any price difference between suppliers, shows whether moving production would actually lower your cost per unit.
Are tariff rates built in?
No. Rates change often and depend on each product's HTS code, so you enter the rates that apply to you. That keeps the calculator from showing a rate that has gone out of date.
Is my data saved?
No. The calculator runs entirely in your browser, and nothing you type is stored or sent anywhere.