Canada Import Customs and Duties for Cross-Border Sellers: Tariffs, GST/HST and CBSA Requirements

Canadian customs duties are calculated on the FOB (Free on Board) value of the goods at the port of direct shipment to Canada. The duty rate depends on the tariff classification under the Customs Tariff and the country of origin. For example, a cotton t-shirt (tariff item 6109.10) from China faces a duty rate of 17%, while the same shirt from the US under CUSMA would be duty-free. Use the CBSA's Customs Tariff lookup (cbsa-asfc.gc.ca) to find your product's classification and applicable rate. Import GST (5%) is calculated on the value for duty plus the duty amount itself.

CUSMA (Canada-United States-Mexico Agreement), known as USMCA in the US and T-MEC in Mexico, replaced NAFTA in July 2020. It provides duty-free treatment for qualifying goods originating from the US, Mexico or Canada. To qualify, goods must meet specific rules of origin — typically, they must be wholly obtained or produced in North America, or undergo sufficient processing to change their tariff classification. You need a valid certification of origin (can be completed by the importer, exporter or producer) to claim CUSMA preferential rates. Goods that do not meet the rules of origin are subject to standard MFN duty rates.

Canada's de minimis threshold is CAD $20 for customs duties and CAD $40 for GST/HST on goods imported by postal courier (e.g., Canada Post). This means postal imports valued at CAD $20 or less are duty-free, and those at CAD $40 or less are tax-free. However, this threshold is among the lowest in the developed world and has significant limitations: it does not apply to commercial shipments cleared through cargo, it does not apply to goods shipped to Amazon FBA warehouses, and it does not apply to excisable goods (alcohol, tobacco). The low threshold means most commercial cross-border sales to Canadian consumers are subject to duty and tax.

Yes. Shipments to Amazon FBA warehouses in Canada are commercial imports and require formal customs clearance through the CBSA. You need a licensed customs broker to prepare a B3 customs coding form and submit it electronically via the CBSA's ACES system. The broker will classify your goods, calculate duty and GST/HST, and arrange payment. You'll need to provide: commercial invoice, packing list, bill of lading/airway bill, and certificate of origin if claiming CUSMA or other FTA preferential rates. Amazon does not act as importer of record for FBA — you remain responsible for import compliance and payment of all duties and taxes.

Several legal strategies exist: (1) Free Trade Agreements — Canada has FTAs with the US and Mexico (CUSMA), EU (CETA), Japan and other CPTPP members, South Korea, and others. Goods originating from these countries may qualify for reduced or zero duty with proper certification. (2) Correct tariff classification — some products may qualify for a lower duty rate under a different classification; request an advance ruling from the CBSA if uncertain. (3) End-use relief — certain goods imported for manufacturing, processing, or specific industrial uses may qualify for duty relief or remission. (4) Temporary importation — goods imported temporarily for repair, exhibition, or testing can be imported duty-free under a temporary import permit or ATA Carnet. (5) Duty drawback — if you import goods and later export them, you can claim a refund of duties paid.