Check the customs side of selling online across borders. Ask "what EU duty applies to my 6 order lines shipped under IOSS?", "which products in my Shopify inventory export have no HS code or country of origin?", "find candidate tariff codes for these 15 products" or "what is the landed cost of this item shipped to the UK?". Shop Duty Desk estimates the EUR 3 per item EU customs duty on low-value consignments (Council Regulation (EU) 2026/382, with the item definition in Commission Delegated Regulation (EU) 2026/1022), and shows how many items a set of order lines counts as, with and without merging identical lines. It checks a Shopify Inventory CSV (the file that holds HS code and country of origin) or product CSV for missing or malformed HS codes, origins, item identifiers and barcodes, and lists the rows to fix. It suggests candidate tariff codes for product titles from the UK Trade Tariff and the US Harmonized Tariff Schedule, and estimates the landed cost of an item from a tariff line using those official duty rates and a small dated VAT table with a source for each rate. Every HS code it returns is a candidate, not a binding classification; confirm it with customs or a customs broker. For the US, when origin is given, it also adds the extra duties that the US tariff lists in its chapter 99 (for example Section 301 duties on goods from China), read from the chapter 99 headings and notes of the Harmonized Tariff Schedule at hts.usitc.gov, and says which ones it skipped. It adds the merchandise processing fee and, for ocean freight, the harbor fee. Order lines carry no customer data: lines with a name, address or other customer field are refused. Nothing you send is stored; there is no account and no IP address is kept, only a daily count of calls per tool. Does not: look up EU TARIC duty rates or Canadian rates, apply the EUR 3 rule to consignments over EUR 150, give a binding classification, or file anything with customs.
