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, …

IRS Form SS-4 is the primary document used to request an EIN from the Internal Revenue Service. An EIN identifies your business entity for federal tax purposes, allowing you to file returns, pay …

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).

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).

Find detailed instructions & comprehensive overview for Form SS-4 (2025) for free. Understand its importance and how to fill it out correctly.

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 …

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!

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.

Aug 13, 2025 · You may apply online or by using Form SS-4. In this article, we’ll go over SS-4 in depth, including how to complete and submit the form, frequently asked questions, and other important details.

It's a nine-digit number the IRS assigns to identify your entity for tax purposes, and you'll use it on virtually every tax form, business document, and financial account. Form SS-4 is the application …