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Handling W-9 and W-8ECI Forms for U.S. and Canadian Vendor Payments
February 18, 2026
Q. We have a legal company we have onboarded that provided a US W-9 (business in NY) originally, but eventually (after paying the US invoices) then received an invoice for services in Canada and were provided a W-8ECI with the EIN from the W-9 in the Part 1 (Identification of Beneficial Owner) section. I'm confused on 1) the tax responsibilities (1099 vs 1092-S), as well as the appropriate way to set up the supplier for the correct results. Would this be viewed as one vendor with multiple…
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