US Import Landed Cost Calculator
Enter a value and a duty rate to see the whole build-up: base duty, tariff layers, MPF with its floor and cap, and HMF on ocean freight.
What decides the rate
The two fees are where most estimates go wrong. MPF is 0.3464% of entered value but never less than $34.58 and never more than $670.86 per formal entry, so the effective rate on a small shipment is far above 0.3464% and on a large one far below.
Where this goes wrong
This calculator handles MFN duty, Section 301, Section 232, MPF and HMF. It does not estimate anti-dumping or countervailing duty, quota, or product-specific agency requirements.
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
Why does the MPF not equal 0.3464% of my shipment?
Because of the floor and cap. MPF is 0.3464% of entered value but never less than $34.58 and never more than $670.86 per formal entry. A $5,000 entry pays the floor, which is an effective 0.69%.
Does HMF apply to air freight?
No. The harbor maintenance fee is 0.125% on ocean cargo only. If your freight moves by air, turning it off changes the result by that amount on the entered value.
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.