Start with product facts, not a product title
A product title is usually written for shoppers, not customs review. Titles such as “summer tee,” “gift mug,” or “portable charger” leave out the facts that matter for classification review. A stronger HS lookup starts with what the product is made of, what it does, how it is constructed, and how it will be imported.
- Replace marketing wording with material + function + product type.
- Record variant-level differences instead of treating every SKU as the same product.
- Keep country of origin separate from ship-from warehouse or supplier address.
- Use the same cleaned facts later for invoices, packing lists, and duty estimates.
Minimum field checklist
For most ecommerce products, the minimum HS preparation checklist is small but specific. Missing one of these fields can push a lookup toward a vague candidate or create extra review work when the invoice is prepared.
- Material: main material, secondary material, fiber content, coating, or battery content when relevant.
- Function: what the product does for the buyer, not only the category name.
- Construction: knit versus woven, insulated versus non-insulated, powered versus passive, food-contact versus decorative, or set versus single item.
- Product type: apparel, container, electronic device, accessory, toy, kitchenware, textile article, or other practical category.
- Origin and destination: country of origin and the market where the goods will be imported.
- Catalog reference: SKU, variant ID, product title, barcode, supplier item number, or Shopify product export row.
- Commercial facts: quantity, unit value, currency, weight, and invoice-ready description.
Variant facts matter
HS code preparation often fails when sellers classify the product family instead of the actual variant. A cotton T-shirt and polyester performance shirt may need different review. A stainless steel insulated bottle may need different checks than a plastic sports bottle. A power bank needs battery capacity and watt-hour information that a passive phone case does not need.
- Split variants when material, function, origin, value, battery content, food-contact use, or construction changes.
- Do not use one candidate across bundles that contain different product types.
- Keep a review note for supplier-provided codes so the reason for accepting or rejecting the candidate is visible later.
Source-backed checks
The useful public sources all point in the same direction: classification and document review need real product facts. TariffCatalog should capture those facts before producing candidates or drafts.
- Trade.gov explains HS codes as a standardized way to identify products for duties, statistics, and documentation, with countries extending codes beyond the international six digits.
- Shopify documents HS code and country of origin fields for product and variant customs information.
- DHL customs guidance emphasizes clear goods descriptions that say what goods are, what they are used for, and what they are made of.
- TariffCatalog Sources and Methodology explain why candidates, rates, and document drafts must be checked against official destination sources.
How to use these fields in TariffCatalog
Treat the product facts as a reusable customs data record. Once cleaned, the same record can feed HS lookup, invoice drafts, document checks, and duty estimates.
- Use the AI HS Code Finder with material, function, construction, origin, and destination fields instead of a short product title.
- Use the CSV Catalog Checker to find missing origin, weak descriptions, and incomplete SKU rows before label creation.
- Use the Commercial Invoice Generator after descriptions, origin, quantity, value, and candidate HS fields are cleaned.
- Use the Import Duty Calculator only after the candidate code, origin, value basis, and additional tariff assumptions have been reviewed.
- For a full workflow, pair this answer with How to Prepare a Product Catalog for Customs and Does a Commercial Invoice Need HS Code?.
Ecommerce example
A Shopify seller has one product family called “Travel Bottle,” but the variants include plastic sports bottles, stainless steel insulated bottles, and bottles with straw lids. The seller should not submit only “travel bottle” to an HS lookup. A stronger record would state material, insulation, lid type, food-contact use, SKU, country of origin, destination market, value, and weight for each variant. That lets the HS candidate, invoice description, and duty estimate follow the same facts.
Common mistakes
Most HS preparation errors start before the lookup tool is used. The issue is not only the candidate; it is the missing data behind the candidate.
- Using marketplace titles instead of customs descriptions.
- Copying a supplier code without destination-market review.
- Ignoring material or construction changes between variants.
- Mixing product origin with ship-from country.
- Leaving value, currency, or unit of measure outside the catalog record.
- Treating an HS candidate as binding instead of verifying the full national code.