US Import Duty Calculator: What You'll Owe Before the PO
Enter an HTS code and customs value. The calculator looks up the live USITC base rate, adds FY2026 CBP entry fees, and shows the duty bill before you place the PO.
Estimate Import Costs
Customs value, duty logic, and import-cost impact
Calculation Results
Run a calculation to see your live estimate
Effective Duty & Fee Rate
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Value + Duties & Fees
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Base Duty
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Additional Tariffs
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Fees
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How this import duty calculator works
Classification sets the base rate. You enter any extra tariff you already know applies. Fees follow the FY2026 CBP schedule and the transport mode you pick.
1. HS Code Classification
Your product classification sets the base duty rate. Small mistakes can materially change the estimate.
2. Country of Origin
Origin changes eligibility for trade programs and additional tariffs, including Section 301 for some US imports.
3. Customs Value & Fees
The estimate applies the selected FY2026 entry-processing fee and adds the harbor fee only when you select a covered-port ocean movement.
The estimate is free. The insight keeps going.
Your duty is one number. Your supply chain is the whole story.
SupplyAutomate keeps purchase orders, supplier updates, documents, shipments, and landed costs in one calm workspace. Everyone sees what is happening, what it costs, and what needs attention next.
SupplyAutomate
Example order overview
Purchase order SA-1048
$18,426.00
Current landed cost
Ready
Documents organized
In progress
Supplier status
Visible
Landed cost
Purchasing, operations, and finance now see the same number.
Why the Duty Number Has to Land Before the PO
See the entry bill before the PO
A live HTS rate plus CBP fees is the number to compare to selling price, not the factory quote.
Leave room for Section 301
The lookup is the Column 1 General rate. Enter the extra percent yourself when you already know a Chapter 99 measure applies.
Give finance the same stack
Ops and finance work from one HTS lookup and fee schedule, instead of two spreadsheets that disagree.
Margin planning
Estimate landed cost earlier
Cost visibility
Keep fees in the buying model
Frequently Asked Questions
Related reading
- How to calculate import duty from China — HS/HTS, customs value, Section 301, and a worked landed-cost example.
- Landed cost calculator — add freight after you have a duty rate.
- How to calculate landed cost — duty is one line; the unit cost is the whole stack.
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Ready to Automate Your Supply Chain?
The import duty calculator is the starting point. SupplyAutomate connects suppliers, costs, documents, and landed-cost visibility in one workspace.
No credit card required • Instant setup • Unlimited calculations