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                            About Form SS-4, Application for Employer Identification 
                            Feb 19, 2025 Use Form SS-4 to apply for an employer identification number (EIN). An EIN is a 9-digit number (for example, 12-3456789) assigned to employers.
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                            Annual Return of Withheld Federal Income Tax docHub
                            You may also apply for an EIN by faxing or mailing Form SS-4 to the. IRS. If you havent received your EIN by the due date of. Form 945, write Applied For
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                            Form-SS-4.pdf
                            File Form SS-4 if the applicant entity does not already have an EIN but is required to show an EIN on any return, statement, or other document. See also the
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