A general-purpose tariff and landed cost calculator for international Amazon sellers.
Installation
npx skills add nexscope-ai/eCommerce-Skills --skill tariff-calculator-amazon -g
Features
- Universal trade routes — any origin country to any destination country
- Tariff rate lookup — HS code → tariff rate
- Section 301 tariffs — US additional tariffs on Chinese imports
- VAT/GST calculation — EU, UK, Canada, Australia, China rates
- Landed cost — full cost breakdown
- HS code matching — product description → HS code suggestions
- Trade agreements — USMCA, EVFTA, RCEP preferential rates
Supported trade routes
| Route | Main tariff | VAT/GST |
|---|---|---|
| 🇨🇳 → 🇺🇸 China → US | Section 301 (7.5-25%) | Not applicable |
| 🇨🇳 → 🇪🇺 China → EU | Standard tariff | 19-22% |
| 🇨🇳 → 🇬🇧 China → UK | Standard tariff | 20% |
| 🇺🇸 → 🇪🇺 US → EU | Standard tariff | 19-22% |
| 🇪🇺 → 🇺🇸 EU → US | Standard tariff | Not applicable |
| 🇺🇸 → 🇨🇳 US → China | Retaliatory tariff | 13% VAT |
| 🇨🇳 → 🇨🇦 China → Canada | Standard tariff | 5% GST |
| 🇨🇳 → 🇦🇺 China → Australia | Standard tariff | 10% GST |
| Custom | User-defined | User-defined |
Section 301 tariffs (China → US)
| HS chapter | Product | Additional rate |
|---|---|---|
| 84xx | Computers, machinery | 25% |
| 85xx | Electronics (some) | 0-25% |
| 94xx | Furniture, lighting | 25% |
| 95xx | Toys | 25% |
| 61/62 | Apparel | 7.5% |
| 64xx | Footwear | 7.5% |
| 42xx | Bags, accessories | 7.5% |
Landed cost formula
到岸成本 =
FOB价
+ 国际运费
+ 保险
+ 进口关税
+ 增值税/消费税（如适用）
+ 清关费用
+ 港口费用
+ 内陆运费
Workflow
Step 1: Gather tariff calculation requirements — basic information such as product type, HS code, country of origin, destination country, FOB value, quantity, and shipping cost.
Step 2: Supplement information through multiple-choice questions — product material, whether Section 301 tariffs are involved, whether trade agreement preferences are needed, and whether multiple SKU calculations are involved.
Step 3: Use the following framework and methodology for research and analysis.
Landed cost calculation formula: Landed cost = FOB value + international freight + insurance + import tariff + VAT/GST + customs clearance fee + port fee + inland transportation fee. Step-by-step calculation: CIF value = FOB value + international freight + insurance; total tariff = CIF value × base tariff rate + CIF × 301 tariff rate (China→US); VAT = VAT base × VAT rate, where VAT base = CIF + total tariff; total taxes and fees = tariff + VAT + customs clearance fee ($150) + port fee ($50); total landed cost = CIF + total taxes and fees + inland transportation fee.
HS code system: The HS code is a universal commodity classification code for international trade. The first 2 digits represent the Chapter, and the first 4 digits represent the Heading. Chapters and headings are internationally unified, while subheadings (6-10 digits) are defined by each country. HS lookup priority: directly enter the HS code for exact matching (confidence 100%); keyword matching against a built-in mapping table (confidence 60-80%); fuzzy description matching by traversing the database (confidence 70%).
Base tariff rate: The base tariff rate is determined by HS chapter and destination country, with data sourced from each country's most-favored-nation (MFN) rates. For example: plastic products (Chapter 39) US 6.5%, EU 6.5%; machinery and equipment (Chapter 84) US 0%, EU 2%; electrical and electronic (Chapter 85) US 0%, EU 2%; furniture (Chapter 94) US 0%, EU 0%; toys (Chapter 95) US 0%, EU 4.5%.
Section 301 tariff calculation: The United States imposes additional tariffs on certain goods imported from China, determined by HS 4-digit heading. The tariff is calculated in addition to the base tariff, not as a replacement. For example: computers (8471) 25%; power supplies/transformers (8504) 25%; communication equipment (8517) 25%; furniture (9403) 25%; toys (9503) 25%; apparel (6110/6203/6204) 7.5%; footwear (6402) 7.5%.
VAT/GST calculation method: VAT base = CIF value + total tariff; VAT = VAT base × VAT rate. For example: China→EU: CIF=$5215 + tariff=$1304; VAT base=$6519; VAT=$6519×19%=$1239.
Step 4: Provide a complete tariff calculation report, including cost breakdown, tax and fee details, total landed cost, and unit price analysis.
How to use
Basic calculation
python3 scripts/calculator.py
With parameters
python3 scripts/calculator.py '{
"hs_code": "8518300000",
"origin_country": "CN",
"destination_country": "US",
"fob_value": 5000.00,
"quantity": 500,
"freight_cost": 200.00
}'
HS code lookup
python3 scripts/hs_lookup.py "wireless earbuds"
python3 scripts/hs_lookup.py "bluetooth speaker"
Custom trade route
python3 scripts/calculator.py '{
"hs_code": "9503009000",
"origin_country": "VN",
"destination_country": "DE",
"fob_value": 10000.00,
"quantity": 1000,
"freight_cost": 500.00,
"custom_duty_rate": 0.047,
"custom_vat_rate": 0.19
}'
Output example
💰 关税与到岸成本报告
产品：无线蓝牙耳机
HS编码：8518300000
路线：中国 🇨🇳 → 美国 🇺🇸
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
📦 成本细分
FOB价 $ 5,000.00
国际运费 $ 200.00
保险 $ 15.00
CIF价 $ 5,215.00
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
🏛️ 关税与税费
基础关税（0.0%） $ 0.00
301条款（0.0%） $ 0.00
总关税 $ 0.00
清关费用 $ 150.00
港口费用 $ 50.00
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
💵 到岸成本总结
总到岸成本 $ 5,515.00
单价 $ 11.03
Trade agreement support
| Agreement | Country | Preference |
|---|---|---|
| USMCA | United States, Mexico, Canada | Tax reduction/zero tariff |
| EVFTA | European Union, Vietnam | Tax reduction |
| RCEP | Asia-Pacific region | Tax reduction |
| UK-Japan | United Kingdom, Japan | Tax reduction |
Custom configuration
Create a custom configuration for your route:
{
"default_origin": "CN",
"default_destination": "US",
"include_insurance": true,
"insurance_rate": 0.003,
"customs_fee": 150,
"port_fee": 50
}
Belongs to Nexscope AI — an AI tool for e-commerce sellers.