HS Tariff Classification: Common Mistakes and How to Avoid Them
January 2024 · 10 min read
Why Tariff Classification Matters
The Harmonized System (HS) tariff number assigned to your imported goods determines the duty rate, applicable trade agreements, and whether any import controls or permits are required. An incorrect classification can result in underpayment of duties (triggering CBSA penalties) or overpayment (costing your business unnecessarily).
Common Classification Mistakes
1. Using a Supplier's Classification Without Verification
Many importers simply copy the HS code provided by their foreign supplier — but suppliers classify goods for their own country's export schedule, which may differ from Canada's import tariff schedule. Always verify classifications independently.
2. Classifying by Description Rather Than Function
The HS system classifies goods by their primary function and composition, not just their name. A product described as a "cleaning brush" could be classified very differently depending on its material, intended use, and design.
3. Missing Section or Chapter Notes
The Canadian Customs Tariff includes legal notes at the section and chapter level that override seemingly obvious classifications. Ignoring these notes is a common — and expensive — mistake.
4. Applying the Wrong Rules of Interpretation
The General Rules for the Interpretation of the Harmonized System (GRI) must be applied in sequence. Many importers skip straight to GRI 4 (most akin to) without working through GRIs 1–3 first.
5. Not Updating Classifications After Product Changes
If your supplier changes the materials or manufacturing process of a product, the tariff classification may change. Regular classification reviews are essential for importers dealing with evolving product lines.
How Viacan Ensures Accurate Classification
Viacan's licensed brokers conduct thorough product classification analyses using official CBSA rulings, the World Customs Organization Explanatory Notes, and Canadian case law. Where classification is uncertain, we can apply for an Advance Ruling from the CBSA for certainty before your goods arrive.