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  1. File Form SS-4 if the applicant entity doesn’t already have an EIN but is required to show an EIN on any return, statement, or other document.1 See also the separate instructions for each line on Form SS-4.

  2. About Form SS-4, Application for Employer Identification Number (EIN)

    Information about Form SS-4, Application for Employer Identification Number, including recent updates, related forms, and instructions on how to file. Form SS-4 is used by sole proprietors, corporations, …

  3. General Instructions Use these instructions to complete Form SS-4, Application for Employer Identification Number (EIN). Also, see Do I Need an EIN? on page 2 of Form SS-4.

  4. IRS Apply for an Employer Identification Number (EIN) online

    If you are not comfortable sending information via the Internet, download the Form SS-4 PDF file and the instructions for alternative ways of applying. About the EIN Assistant

  5. Instructions for Form SS-4 (12/2023) - Internal Revenue Service

    General Instructions Use these instructions to complete Form SS-4, Application for Employer Identification Number (EIN). Also, see Do I Need an EIN? on page 2 of Form SS-4.

  6. Forms & instructions | Internal Revenue Service

    Sep 17, 2025 · Form W-4 Employee's Withholding Certificate Complete Form W-4 so that your employer can withhold the correct federal income tax from your pay. Form W-4 PDF

  7. Presente el Formulario SS-4 si el solicitante no tiene actualmente un EIN, pero tiene que incluir tal número en cualquier declaración u otro documento1. Vea además las instrucciones por separado …

  8. Get an employer identification number | Internal Revenue Service

    Aug 8, 2025 · If you are forming a legal entity (LLC, partnership, corporation or tax exempt organization), form your entity through your state before you apply for an EIN. If you don’t form your entity with your …

  9. Tools | Internal Revenue Service

    Sep 16, 2025 · Use your best estimates for the year ahead to determine how to complete Form W-4 so you don’t have too much or too little federal income tax withheld. Sales Tax Deduction Calculator

  10. Use Form SS-4 to apply for an employer identification number (EIN). An EIN is a nine-digit number (for example, 12-3456789) assigned to sole proprietors, corporations, partnerships, estates, trusts, and …