Use this form to apply for an employer identification number (EIN). An EIN is a nine-digit number (for example, 12-3456789) assigned to employers, sole proprietors, corporations, partnerships, estates, trusts, certain individuals, and other entities for tax filing and reporting purposes.
Other Items You May Find Useful
Formulario SS-4PR, Solicitud de Número de Identificación Patronal (EIN)
Publication 15 (Circular E), Employer's Tax Guide
Publication 51 (Circular A), Agricultural Employer's Tax Guide
Publication 80, Federal Tax Guide for Employers in the U.S. Virgin Islands, Guam, American Samoa, and the Commonwealth of the Northern Mariana Islands
Comment on Form SS-4
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