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Import Duty Calculator is a free, real-time US customs duty estimation tool powered by the official Harmonized Tariff Schedule (HTS). Built for importers, dropshippers, e-commerce sellers, and supply chain professionals who need to calculate landed costs before placing orders.
Traditional duty calculation requires manually searching the 10,000+ page HTS database — a process that takes 30+ minutes per product. This calculator delivers instant estimates with 2026 tariff data, Section 301 surcharges, and all hidden fees built in.
| Mode | Use Case |
|---|---|
| Simple Duty | Quick estimate: product value × tariff rate |
| Landed Cost | Full breakdown: FOB + duty + Section 301 + shipping + insurance + brokerage + MPF/HMF |
| Batch Estimate | Bulk calculate multiple products in one go |
| Product | HTS Code | Total Rate (China origin) |
|---|---|---|
| Solar Panels | 8541.43.00 | 90.0% |
| Office Desks (Metal) | 9403.10.00 | 75.0% |
| Yoga Mats | 9506.91.00 | 62.1% |
| Steel Water Bottles | 7323.93.00 | 52.0% |
| Cotton T-shirts | 6109.10.00 | 34.0% |
| Running Shoes | 6404.19.90 | 26.5% |
| Ceramic Mugs | 6911.10.45 | 24.0% |
| LED Light Bulbs | 8539.52.00 | 12.0% |
| Wireless Headphones | 8518.30.20 | 10.0% |
- Section 301 Tariffs: Automatic surcharge for Chinese-origin goods (7.5%–25%)
- MPF (Merchandise Processing Fee): 0.3464% of value, $31.67–$614.35 min/max
- HMF (Harbor Maintenance Fee): 0.125% for ocean freight
- De Minimis Rule: Flags shipments under $800 for duty-free eligibility
Each calculation references the correct 10-digit HTS code. For deeper classification needs, Accio's full HS Code Lookup covers 15+ product categories.
Product FOB Value × HTS Tariff Rate = Base Duty
Base Duty + Section 301 Surcharge + MPF + HMF = Total Customs Payable
Total Customs Payable + Shipping + Insurance + Brokerage = Total Landed Cost
Example: A $5,000 shipment of Cotton T-shirts from China
| Component | Calculation | Amount |
|---|---|---|
| Base Duty | $5,000 × 34% | $1,700 |
| Section 301 (China) | $5,000 × 7.5% | $375 |
| MPF | 0.3464% (min $31.67) | $31.67 |
| Total to Customs | $2,106.67 | |
| + Shipping + Insurance + Brokerage | ~$800 | |
| Total Landed Cost | ~$2,906.67 |
Sourcing the same T-shirts from Vietnam avoids Section 301 entirely, reducing duty to just $1,700 — a $406.67 saving per shipment.
- Dropshippers — Calculate true margins before listing products
- Amazon FBA Sellers — Budget landed costs for inventory planning
- Import/Export Businesses — Compare sourcing countries (China vs. Vietnam vs. India)
- Supply Chain Managers — Batch-estimate duties across product catalogs
- E-commerce Entrepreneurs — Understand tariff exposure before entering new categories
How is US import duty calculated?
US import duty = FOB value × HTS tariff rate. Shipping and insurance are excluded from the taxable base (unlike the EU/UK where CIF value is used). For Chinese goods, Section 301 surcharges apply on top of the base rate.
What is Section 301 and does it still apply in 2026?
Yes. Section 301 tariffs remain active in 2026, adding 7.5%–25% on thousands of Chinese-origin products. The calculator automatically applies the correct surcharge when you select "China" as the origin country.
What is the $800 de minimis rule?
Shipments valued under $800 are generally exempt from duties under Section 321 (De Minimis). Note: certain product categories (e.g., textiles subject to quotas) have exclusions.
How accurate are the tariff rates?
Rates are sourced from the official US Harmonized Tariff Schedule (HTS) and updated for 2026. For legally binding determinations, always consult a licensed customs broker.
Does this cover UK / EU duties?
This calculator focuses on US imports. For UK-specific calculations, use our UK Import Duty & VAT Calculator.
| Tool | Description |
|---|---|
| HS Code Lookup | Find the correct 10-digit HTS classification |
| Shipping Cost Estimator | Sea, air, and express freight rate calculator |
| Profit Margin Calculator | Full markup, revenue, and break-even analysis |
| Product Sourcing Cost Analyzer | Deep-dive landed cost with waterfall charts |
| Incoterms 2020 Calculator | Compare EXW, FOB, CIF, DDP costs |
| UK Import Duty & VAT Calc | UKGT duties + VAT for UK imports |
Full Suite: Accio Sourcing & Logistics Hub — 10 free tools + sourcing guides
Found an outdated tariff rate or want to suggest a new product category? Contributions welcome:
- Fork this repository
- Open an issue describing the update
- Submit a PR with the corrected rate and source reference (HTS chapter + heading)
Please verify all tariff data against the official USITC HTS database before submitting.
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