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, …

Nov 1, 2025 · Explore what IRS Form SS-4 is, why it's important, and how to fill it out correctly to get your Employer Identification Number (EIN).

Aug 20, 2025 · Form SS-4 is an application for an Employer Identification Number (EIN), also known as a Federal Tax Identification Number, from the IRS. The IRS assigns a unique nine-digit number to …

Oct 28, 2020 · What is IRS Form SS-4? IRS Form SS-4, “Application for Employer Identification Number,” is the form businesses use to apply for an employer identification number (EIN).

Jul 16, 2025 · Form SS-4 is the application you fill out to get an employer identification number (EIN) from the IRS. You need this form when you're starting a new business, hiring your first employee, …

Find detailed instructions & comprehensive overview for Form SS-4 (2026) for free. Understand its importance and how to fill it out correctly.

Nov 12, 2025 · What Is an SS-4 Form? An SS-4 form, also known as an Application for Employer Identification Number (EIN), lets you apply for a unique nine-digit EIN. This IRS form helps a …

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.

Apr 25, 2025 · You can think of it as your company’s social security number. In order to know what your EIN is, you’ll need to file Form SS-4 with the IRS. Once the IRS has assigned an EIN to your …

If you're a small business owner or a solopreneur, at some point, you may need to fill out IRS form SS-4. We explain what it is, who needs one, & much more!