Request for Taxpayer
Instead, use the appropriate Form W-8 or Form 8233 (see Pub. If you are a nonresident alien or a foreign entity, give the requester the appropriate completed Form W-8 or Form 8233.
Requirements for Obtaining and Verifying a Global Intermediary Identification Number (GIIN). Presumption Rules. When To Request a New Form W-8. Foreign TINs. Alternative Certifications Under an Applicable IGA. Rules for Specific Types of Forms W–8.