HS (Harmonized System) code is an internationally standardized product classification system developed by the World Customs Organization (WCO), adopted by over 200 countries. It consists of 6 digits globally, with countries extending to 10 digits (e.g., US HTS 10-digit, UK Commodity Code 10-digit, China HS 10-digit).

What countries does HSBot support?

HSBot currently supports US HTS codes and UK tariff codes (import classification) and China HS codes (export classification), covering the most common China-US and China-UK trade scenarios. More countries including EU, Japan, Vietnam, and Mexico are coming soon.

How many free queries do I get per day?

Free users can make 20 classification queries per day. The quota resets at 00:00 Beijing time daily. Contact us for enterprise plans with higher limits and API access.

What is Section 232 tariff?

Section 232 tariff is an additional US import duty on steel, aluminum, and copper products based on national security grounds. HSBot automatically calculates applicable Section 232 rates based on HS code prefixes and exporting country.

What is Section 301 tariff?

Section 301 tariff is an additional US import duty on certain products from China, in response to trade practices. HSBot automatically identifies applicable Section 301 rates and checks for tariff exclusions.

Can I change an HS code after classification?

Yes, before declaration. After goods are released, you must voluntarily disclose or wait for customs audit, which may result in back duties and penalties.

Is AI classification accurate?

For common products, accuracy can exceed 95%. However, products with complex materials or usage require manual review. AI results are for reference only.

Is it better to write vague product descriptions?

Quite the opposite. Vague descriptions trigger manual inspections, delaying clearance and raising inspection rates.

Where can I look up HS codes and tariff rates?

HSBot supports 10-digit code lookup and multi-layer tariff calculation for the US, China, and UK, with data sourced from official customs publications.

What is the most serious consequence of misclassification?

Underpaying duties can lead to customs audits, back taxes, penalties, and potential violations. Missing regulatory requirements can result in cargo seizure and clearance failure.

Common HS Code Classification Mistakes and How to Avoid Them

Bottom line: The most common HS code classification errors are "matching by name only," "unclear material/usage," and "vague descriptions triggering inspections." Misclassification directly leads to wrong duties, cargo seizure, fines, and even credit downgrades. You must use precise descriptions and verify with official data.

Why HS Code Classification Matters

HS codes determine: applicable tariff rates, regulatory conditions, inspection requirements, and export refunds. The same product classified under different codes can see tariffs jump from 0% to 25%, or trigger 3C certification or quarantine.

Consequences of misclassification: - Underpaying duties → Customs audit, back taxes + penalties + interest - Missing regulatory conditions → Cargo held, clearance blocked - Wrong export refund classification → Refund rejected or fraud risk - Repeated mismatches → Credit rating downgrade, higher inspection rates

Five Common Mistakes

Mistake 1: Matching by Name Only

For example, "phone case" — many assume silicone, leather, and plastic cases fall under different codes, but CBP rulings show the deciding factor is not the material; it is the "state of importation and essential character." Shells assembled into the phone body are classified as phone parts (8517.70, with the handset); external decorative/protective cases are classified as articles of their own material or essential character (e.g., gemstone-studded → 3926.90.35 / 7018.90.50; hard external → 3926.90.99). So matching on the name without determining whether it is a part or an external article is the real trap.

Mistake 2: Unclear Material, Usage, or Composition

Customs classification looks at "what is it made of, what is it used for, how is it used." The more vague the description, the more likely AI and humans will get it wrong.

Mistake 3: Confusing Similar Products

"Bluetooth earphones" and "Bluetooth speakers" have different codes; "stainless steel screws" and "aluminum alloy screws" may have very different rates (232 imposes additional duties on steel/aluminum).

Mistake 4: Copying Competitor Codes

Codes used by competitors may not be accurate for your product, especially across HS chapters. Every company's product details are different.

Mistake 5: Vague Descriptions Triggering Inspections

Declaring products as "crafts," "accessories," or "miscellaneous goods" prevents customs from making a determination, directly triggering manual inspection and clearance delays.

Four-Step Correct Classification Method

Break down attributes: Material (stainless steel? silicone?), usage (worn on head? mounted on wall?), processing (assembled or not)
Determine chapter: The first 2 digits identify the chapter (e.g., 94 is furniture, 85 is electrical equipment)
Check subheadings: 5–6 digit subheadings define specific form, then check national 10-digit extensions
Verify rates and regulations: Use official databases to verify MFN, 301/232 additional duties, and regulatory conditions for the code

Use AI, But Don't Fully Trust It

AI classification tools (like HSBot) can reduce hours of manual code lookup to seconds, with accuracy exceeding 95% for common products. However, AI results are for reference only — actual declarations are subject to customs determination. The key: the more precise your input, the more reliable the result.

Recommended workflow: Enter a complete product description in HSBot → get candidate codes → cross-verify regulatory conditions and rates with official data → then declare.

Reduce Classification Risk with HSBot

HSBot takes a product description or HTS code, AI auto-matches the most relevant HS code, and displays tariff, compliance, and regulatory information. Each result includes one-click feedback for error correction, continuously improving the model.