US Import Duty Calculator
Calculate your total landed duty in seconds — MFN base rate plus Section 301, Section 232, and FTA preferential rates.
Try these examples
Steel bolts from China
MFN: Free → Total: 50% (Section 301 + Section 232)
Cotton t-shirts from Vietnam
MFN: 16.5% → Total: 16.5% (no additional tariffs)
Face masks from China
MFN: 7% → Total: 89.5% (triple Section 301)
Furniture from Mexico
MFN: Free → Total: Free (USMCA)
What's included in the calculation
| Included | Not included |
|---|---|
| MFN (Most Favored Nation) base rate | AD/CVD duties (product & company specific) |
| Section 301 tariffs (China) | Merchandise Processing Fee (MPF) |
| Section 232 tariffs (steel/aluminum) | Harbor Maintenance Fee (HMF) |
| FTA preferential rates (19 countries) | Customs broker fees |
| Reciprocal tariffs | Shipping & insurance |
How duties stack
US import duties aren't a single rate. They stack from multiple authorities. A product with a "Free" MFN rate can actually cost 25-50% in duties when imported from China. See the full explanation with examples.
Need to calculate duties for hundreds of products? The API does everything this calculator does — programmatically, at $0.05-0.10 per classification. See the developer guide or buy credits.