IRS Form SS-4, “Application for Employer Identification Number,” is the form businesses use to apply for an employer identification number (EIN). A business's EIN is its business tax ID number ...

Form SS-4 is used when applying for an Employer Identification Number (EIN). An EIN is a nine-digit number the Internal Revenue Service (IRS) assigns to employers, sole proprietors, corporations ...

Filing your Form SS-4 online is the faster and cleaner way to process your application. Visit the IRS website, navigate to the online registration process, and follow the step-by-step instructions.

Form SS-4 is a form from the Internal Revenue Service (IRS) that you can use to apply for an Employer Identification Number (EIN). An EIN is a nine-digit number that employers, corporations ...