Support
Help with Hexloom Tariff Check Canada, the Shopify app from Hexloom Labs.
Use the Hexloom Labs support page and put your store address (example.myshopify.com) in the message. We usually reply within two business days.
How it works
- Install the app and open it in Shopify admin. It reads your products and the HS code (and any HS codes set for a specific country or region) and country of origin on each variant.
- Each product is checked against 764 HTS lines named in the US Section 338 proclamations (50% additional duty, and from 2026-09-29 some lines barred from import), plus a note on the Section 301 duty by country of origin. For goods entered on or after 12:01 a.m. US Eastern time on 30 October 2026, a proclamation of 23 October 2026 takes 22 of those lines off the list and puts 100 on it; each result shows the dates that apply.
- Open a product to see the matched line, the source in the Federal Register, the as-of date (tables dated 2026-10-23) and options in plain words: reprice, add the duty at checkout, or stop shipping the line.
Plans
- Free, US$0: checks 10 products.
- Basic, US$9 a month: up to 250 products.
- Pro, US$19 a month: up to 2,000 products per scan and CSV export.
Your first paid plan starts with a 7-day free trial; switching plan during the trial keeps the days you have left. Billing is handled by Shopify. To go back to Free, use Switch to Free on the plan card in the app; paid features end at once.
Common questions
Is my whole store hit by a 50% tariff? No. Section 338 covers only the HTS lines named in its annexes. Most products are not on them. The app shows which of yours are.
Why does a product say "No HS code"? Add the code in Shopify admin (the product's Shipping card, More details, Harmonized System (HS) code; the 8 or 10-digit US code goes under HS codes by country/region, United States). Shopify's Help Center calls this area Customs information. Use the lookup in the app if you do not know it.
Does the app check aluminum, steel and copper duties? No. Section 232 duties on aluminum, steel and copper articles and derivatives (Proclamation 11032 of 2026-06-01, 91 FR 34085) are not checked. They can apply in addition to Section 338. For USMCA-qualifying aluminum and steel articles of Canada (Annex I-C), that proclamation applies its duty only to the non-U.S. content, subject to a minimum effective duty set in the same clause; Commerce's definition of U.S. content is in 91 FR 65162 (2026-10-14).
How current are the tables? Dated 2026-10-23. Several lists changed in September 2026, and a proclamation of 23 October 2026 changes the list again for goods entered on or after 30 October 2026. Each result shows its date and source.
What we store is described in the privacy policy.