Canadian eCommerce entrepreneurs selling on US platforms — Amazon.com, Shopify, Etsy, eBay, TikTok Shop — generate US-source income that has tax implications. An ITIN is the foundation of proper US tax compliance for Canadian eCommerce sellers across all major platforms.
US Tax Obligations for Canadian eCommerce Sellers
When a Canadian sells on US platforms to US buyers, they generate US-source income. The tax implications depend on business structure and platform:
- Amazon.com FBA: Inventory in US = potential nexus; seller proceeds require W-8BEN with ITIN
- Shopify: Shopify Payments may request W-8BEN for significant US revenue
- Etsy: US company requiring W-8BEN + ITIN for non-US sellers
- eBay: W-8BEN + ITIN for non-US sellers with significant US sales
- TikTok Shop: US company requiring tax documentation
Platform-by-Platform ITIN Submission
Each platform has a different process, but all accept W-8BEN with your ITIN:
- Amazon Seller Central: Account Settings → Tax Information → Tax Interview
- Etsy: Shop Manager → Finances → Tax Information
- eBay: Account Settings → Personal Information → Tax Information
- Shopify: Settings → Payments → Tax Information
Canadian eCommerce and US Sales Tax
US sales tax (state-level) is separate from US income tax. Canadian eCommerce sellers may need to collect and remit US state sales tax if they have nexus in that state (through FBA inventory, physical presence, or economic nexus thresholds). Your ITIN is for US income tax — use TaxJar or Avalara for US state sales tax compliance.
ITIN Plus for Canadian eCommerce Sellers
$99, 8–14 weeks, IRS Certified Acceptance Agent. ITIN Plus serves Canadian eCommerce sellers across all platforms and provinces. Email apply@itinplus.com.
Frequently Asked Questions
Do all Canadian eCommerce sellers need an ITIN?
Any Canadian selling on a US platform (Amazon.com, Etsy, eBay, Shopify, TikTok Shop) as an individual should have an ITIN for proper W-8BEN documentation. Without it, platforms may withhold 30% from proceeds.
Does the Canada-US Treaty help eCommerce sellers?
Yes. For business income (product sales) from Canadian residents with no US permanent establishment (except FBA inventory), the treaty typically provides treaty protection. Your ITIN enables you to claim this position via W-8BEN.
Do I need both ITIN and EIN for eCommerce?
If you sell as an individual, ITIN alone suffices for W-8BEN. If you sell through a US LLC, the LLC has its own EIN for the seller account, and your personal ITIN is needed for Form 5472 compliance.
How long does it take to get an ITIN?
8–14 weeks from the IRS submission date. Apply through ITIN Plus for $99.
Is Amazon FBA nexus the same as US permanent establishment?
No, but they are related concepts. FBA inventory in a US warehouse may create nexus for state sales tax but doesn't necessarily constitute a US permanent establishment for federal income tax purposes. Consult a US CPA specializing in eCommerce for your specific situation.