How to Find an HS Code for a Product

No. The first six digits of an HS code are internationally harmonized, but each market then adds its own national digits for duty rates, statistical reporting, and regulatory measures. The same product can carry a different full code in the US HTS, the EU TARIC, the UK Trade Tariff, and the destination national schedule. Use the harmonized six digits as a starting point and verify the rest in the destination tariff database before filing.

A supplier code can be a useful starting reference, but it is not safe to copy it directly. The supplier may have classified under their own export tariff, not the destination tariff; the product may be a different variant; or the destination market may apply a different national extension. Always treat a supplier code as a hint, then verify the final code in the destination tariff database and document why you chose the code you used.

Material, function, construction, and intended use carry the most weight for HS classification. Marketing names, brand names, and SKU labels are not enough. Examples: a T-shirt is classified by fiber (cotton vs synthetic) and knit construction, not by SKU. A phone case is classified by material (plastic, leather, textile) and by whether it includes electronics or a battery. The AI HS Code Finder uses these four detail buckets to suggest candidates.

Most major marketplaces require some form of customs data on cross-border listings, although the field name and depth differ. Shopify, Amazon, eBay, Etsy, and Walmart each have their own product customs fields. Even when a marketplace does not require a code, providing one reduces label rejections, customs delays, and customer-facing duty surprises. Treat the marketplace customs field as a minimum, not a substitute for proper classification.

Pick the heading whose explanatory wording most closely matches what the product is, made of, and how it is used. Compare the candidate text in the official tariff notes, not just the heading number. If two headings still look plausible after that, narrow by subordinate rules such as "primarily of," "kind used with," or specific exclusion notes. When ambiguity remains and the product is regulated or high value, ask a licensed professional to issue a binding ruling or formal advice.

Ask a licensed broker or trade professional when the product is regulated (cosmetics, food, supplements, medical devices, batteries), high value, ambiguous in classification, repeatedly shipped, or destined for a country with strict pre-clearance rules. A one-time consultation or a binding ruling can pay back many times over when the same product is shipped across dozens of orders. TariffCatalog helps prepare inputs for that conversation, not replace it.

No. Candidate codes generated by the AI HS Code Finder are starting points based on product facts, not binding classifications. Only customs authorities and licensed professionals can issue binding rulings. Candidates must be verified against the destination tariff database, and any regulated, high-value, or high-volume shipment should still be reviewed by a qualified professional before filing.

Yes, but in batches rather than one-by-one. The CSV Catalog Checker scans Shopify, WooCommerce, Amazon, or custom CSV exports for missing customs fields and groups products that share material and function. Use the candidate HS code lookup as a first pass, then run a manual review on the top 20 percent of SKUs by volume or revenue, since those typically account for the majority of customs risk.