Amazon Canada uses the same FBA structure as Amazon US but has separate fulfillment centers, a different fee schedule, and its own FNSKU namespace. You cannot use US-prepped inventory in Canada FCs without re-labeling.
Cross-border shipping from the US to Canada requires a commercial invoice, country of origin, and HS code for each product. Canada Border Services Agency (CBSA) uses these documents for duty and tax assessment.
USMCA (formerly NAFTA) provides duty-free treatment for most goods manufactured in the US or Mexico. If your products qualify, ensure the commercial invoice includes the appropriate USMCA certification.
A 3PL in South Florida can handle both US FBA prep and Canadian cross-border dispatch from one inbound shipment — splitting inventory and applying the correct labels for each market before dispatch.