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Canadian Address, US Vendor: Which Tax Form and Do You Withhold?
June 2, 2026
Q. We received a W-9 from a vendor with a Canadian address. It seems that he now resides in Canada. The W-9 is marked as individual/sole proprietor or single-member LLC and provided an SSN.
We verified that they are a U.S person for U.S. tax reporting purposes.
The vendor was physically in California while performing services. They were also a California resident before moving to Canada many years ago.
Based on this information, is it correct that the vendor should be included in our Form…
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