IRS forms W-8 and W-9 serve distinct purposes in the tax system and are used by different groups to fulfill their tax obligations. A W-8 form is typically required ...

All foreign suppliers new to UB are required to submit a completed W-8 tax ID form and an Order Preferences, Sourcing & Contact form to Procurement Services as confirmation of their business identity.

Form W-8 is used by foreign individuals and businesses to certify their non-U.S. status and to claim tax treaty benefits, if any are available, for income received from U.S. payers. The purpose of the ...