To obtain an ITIN, you must complete IRS Form W-7, IRS Application for Individual Taxpayer Identification Number. The Form W-7 requires documentation substantiating foreign/alien status and true identity for each individual. Form W-7(SP), Solicitud de Número de Identificación Personal del Contribuyente del Servicio de Impuestos Internos is available for use by Spanish speakers. Most U.S. financial institutions require […]