Validate your 10-digit HTSUS classifications, catch incomplete or incorrect codes, and get AI-powered recommendations — before your shipment reaches U.S. Customs and Border Protection.
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ℹ️ Current Rates: Duty rates and tariff information reflect current CBP schedules. Section 301 tariff lists are subject to ongoing policy changes — always verify current rates with a licensed customs broker before filing.
Understanding HTS Codes
What Is an HTS Code and Why Does It Matter?
The Harmonized Tariff Schedule of the United States (HTSUS) is the system U.S. Customs and Border Protection uses to classify every product imported into the country. Every commercial shipment must include the correct 10-digit HTS code for each line item on the commercial invoice.
The HTS code determines three critical things for your shipment: the duty rate you pay, whether Section 301 tariffs apply, and whether any import licenses or permits are required. An incorrect or incomplete HTS code can trigger a CBP examination, delay your shipment, and result in penalty assessments.
8501.52.4000
Digits 1-4
8501
Chapter & Heading Electric motors & generators
Digits 5-6
.52
Subheading AC motors, multi-phase
Digits 7-8
.40
U.S. Subheading Exceeding 750W
Digits 9-10
00
Statistical Suffix Required for CBP filing
A common mistake is using only the 6-digit international HS code (e.g. 8501.52) instead of the full 10-digit HTSUS code required by CBP (e.g. 8501.52.4000). While your overseas supplier may provide a 6-digit code, U.S. customs entry requires all 10 digits.
Common HTS Errors
HTS Classification Errors That Trigger CBP Holds
These are the most common HTS-related issues CustomsValidator flags on commercial invoices:
🚫 Incomplete HTS Code (6 digits instead of 10)
The most common error. Overseas suppliers often provide the 6-digit international HS code. U.S. CBP requires the full 10-digit HTSUS code for all formal entries. Missing digits will cause entry rejection.
🚫 Wrong HTS Code for Product Description
The HTS code doesn't match the product description on the invoice. CBP officers review both and inconsistencies trigger examinations and potential fraud flags.
⚠️ Ambiguous Classification
Some products could reasonably be classified under multiple HTS codes with different duty rates. Using the wrong one — even unintentionally — can result in duty underpayments and penalties.
⚠️ Missing HTS Code Entirely
Some invoices from overseas suppliers don't include any HTS code at all. While not always required on the commercial invoice itself, it's best practice and helps ensure accurate entry filing.
How It Works
Validate Your HTS Codes in 3 Steps
01
Upload Your Invoice
Upload your Commercial Invoice as PDF, PNG, or JPG. Our system extracts every HTS code automatically.
02
AI Validates Each Code
Our AI checks each HTS code for completeness, matches it against the product description, and flags any inconsistencies.
03
Get Recommendations
Receive confidence-rated HTS recommendations with the correct 10-digit codes and duty rates for each line item.
HTS Confidence Ratings Explained
Rating
What It Means
Action Required
HIGH
HTS code matches product description clearly. Code is complete and valid.
Verify with broker before filing — generally reliable.
MEDIUM
Code is plausible but product description is ambiguous or could fit multiple classifications.
Should be reviewed by a licensed customs broker before filing.
LOW
Significant mismatch between HTS code and product description, or code is incomplete.
Must be corrected before filing. Consult a licensed customs broker.
The HS code (Harmonized System) is an international 6-digit product classification system used by most countries worldwide. The HTS code (Harmonized Tariff Schedule) is the U.S.-specific extension that adds 4 more digits to the international 6-digit code, creating a 10-digit number unique to U.S. customs. When importing into the United States, CBP requires the full 10-digit HTSUS code — not just the 6-digit international HS code.
Using an incorrect HTS code can result in several problems: underpayment or overpayment of duties, CBP examination and hold of your shipment, penalty assessments for negligence or fraud, and potential seizure of goods in serious cases. CBP takes HTS classification seriously and importers are legally responsible for the accuracy of their entries. Even innocent mistakes can result in penalty notices if they result in duty underpayments.
Yes. CBP offers a binding ruling program where you can request an official determination of the correct HTS classification for your product before importing. Binding rulings are legally binding on CBP and provide certainty about the duty rate and classification. They can be requested through the CBP website at cbp.gov. This is highly recommended for high-value or high-volume shipments where classification is uncertain.
No. CustomsValidator provides AI-assisted HTS recommendations to help identify potential issues and guide your classification research. It is not a substitute for a licensed customs broker. All HTS classifications used in formal CBP entry filings should be verified by a licensed customs broker or other qualified trade professional. You are legally responsible for the accuracy of your customs entries.
The Harmonized System is updated every 5 years by the World Customs Organization, with the most recent update in 2022. The U.S. HTSUS is updated more frequently — typically annually — to reflect changes in trade policy, new products, and administrative corrections. Section 301 tariff lists are also updated periodically. It's important to verify that the HTS codes you're using reflect current rates and classifications, especially for ongoing import programs.
Catch HTS Errors Before CBP Does
Upload your commercial invoice and get instant HTS code validation with confidence ratings, duty rates, and specific fix recommendations for every line item.