HTS Codes Explained: How to Classify Your Products for US Customs

If you're importing products into the United States, you will encounter HTS codes. Getting them right is critical — the wrong classification can mean paying the wrong duties, triggering regulatory holds, or facing CBP penalties. This guide explains exactly what HTS codes are, how to find the right one, and the consequences of getting it wrong.

What is an HTS Code?

HTS stands for Harmonised Tariff Schedule. It's a 10-digit number assigned to every product that crosses a US border. The first six digits are internationally standardised (part of the "Harmonised System" used by 200+ countries), while the last four digits are specific to the US.

The HTS code determines three things:

• The import duty rate — what percentage of the product's value you pay to US Customs
• Regulatory requirements — whether your product requires FDA registration, CPSC safety testing, USDA inspection, or other compliance
• Trade agreement eligibility — whether your product qualifies for reduced duties under agreements like USMCA

How HTS Codes Are Structured

HTS codes are organised hierarchically. Let's use a vitamin C supplement as an example:

• 21 — Chapter: Miscellaneous edible preparations
• 2106 — Heading: Food preparations not elsewhere specified
• 210690 — Subheading: Other food preparations
• 2106.90.99 — US-specific: Further classification

How to Find Your HTS Code

Method 1: USITC HTS Search

The official free resource is the US International Trade Commission's HTS search tool at hts.usitc.gov. You can search by keyword or browse the chapter structure. This is always the most authoritative source.

Method 2: CBP Binding Ruling

If you're unsure about your classification — particularly for complex or novel products — you can request a binding ruling from US Customs and Border Protection. CBP will officially classify your product, and that classification is legally binding. This process takes 30–90 days but gives you complete certainty.

Method 3: Licensed Customs Broker

A licensed customs broker can classify your products based on their expertise and database of past rulings. This is the most practical option for most importers — brokers classify products every day and know the nuances that trip up first-timers.

Common HTS Code Categories for Consumer Brands

Health & Supplements

Most dietary supplements fall under Chapter 21 (Miscellaneous Edible Preparations) or Chapter 30 (Pharmaceutical Products). Duty rates for supplements are typically 0–6.4%, and FDA registration is required for the manufacturing facility.

Cosmetics & Personal Care

Cosmetics generally fall under Chapter 33 (Essential Oils, Perfumery, Cosmetics). Duty rates range from 0–5.3%. FDA compliance under MoCRA is required for products sold in the US.

Food & Beverages

Food products span multiple chapters depending on their nature — Chapter 17 for sugars, Chapter 18 for cocoa, Chapter 22 for beverages. FDA Prior Notice is mandatory for all food imports.

Home & Household Goods

Household items span Chapters 39–96 depending on material composition (plastics, wood, glass, metal). Some categories require CPSC (Consumer Product Safety Commission) compliance, particularly children's products.

The Consequences of Wrong Classification

Misclassifying products is more common than you might think — and the consequences range from inconvenient to severe:

• Underpayment of duties — CBP can collect unpaid duties plus interest going back five years
• Overpayment of duties — you're paying more than you legally owe (recoverable, but requires a protest filing)
• Regulatory violation — if the correct code triggers a requirement you're not meeting (e.g., FDA registration), CBP can refuse entry of your goods
• CBP penalties — intentional or negligent misclassification can result in penalties of 20–40% of the unpaid duties

The First Sale Rule

One advanced strategy worth knowing: under the First Sale Rule, importers can declare customs value based on the price the manufacturer sold to a middleman, rather than the higher price the middleman charged you. For brands buying through trading companies or agents, this can significantly reduce the dutiable value of goods — and therefore your duty bill.

Working with a Customs Broker

For most brands, the practical answer is to work with a licensed customs broker from day one. A good broker will:

• Classify your products correctly based on their expertise and research
• File all CBP entry documents on your behalf
• Handle any CBP queries or examinations
• Advise on duty-saving strategies
• Keep you compliant as regulations change

ImportIQ works with licensed customs brokers for every shipment, handling all HTS classification and customs filing as part of our standard import process. Our brand partners never need to deal with CBP directly.