Disclaimer and Scope
This site tells you what it does not know. That is the point of it.
What decides the rate
An estimate here adds up four layers: the base rate you enter, the trade-remedy layers you enter, the merchandise processing fee, and the harbor maintenance fee on ocean cargo. Everything else is out of scope, including anti-dumping and countervailing duty, quota, unclaimed exclusions, and agency requirements such as FDA, CPSC or FCC. Those limits are printed on every calculator page, not only on this one, because a reader who only sees the number deserves to know what the number leaves out.
Where this goes wrong
Figures are planning estimates. A licensed customs broker or the official CBP and USITC sources govern the actual entry.
Inputs and assumptions
| Item | Value | Note |
|---|---|---|
| Duty rate source | USITC HTS, release 2026HTSRev22 | Read at build time from the official schedule export. The general rate column. |
| MPF | 0.3464% of entered value, min $34.58, max $670.86 | CBP User Fee Table, FY2027. The ad valorem rate is statutory; the floor and cap are adjusted each October. |
| HMF | 0.125% of entered value, ocean cargo only | CBP User Fee Table. Not charged on air freight. |
| Customs value | Transaction value, normally the price paid for the goods | Freight and insurance are not part of US customs value, unlike CIF jurisdictions. |
Questions this page answers
What is not included in the estimates?
Anti-dumping and countervailing duty, quota, exclusions you have not claimed, and agency requirements such as FDA, CPSC or FCC. Every calculator says so on the page, not only here.
Can I file an entry from these numbers?
No. These are planning estimates. A licensed customs broker and the official CBP and USITC sources govern the actual entry.
Does this estimate include anti-dumping duty?
No. Anti-dumping and countervailing duty are case-specific and can exceed every other layer combined, so they are outside the estimate by design. The calculator covers base duty, the Section 301 and 232 layers you enter, the merchandise processing fee and the harbor maintenance fee.
Data release: 2026HTSRev22. Content as of November 10, 2026. Found an error? Tell us and it gets corrected.