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 …
Limited liability company (LLC) - Internal Revenue Service
Oct 9, 2025 · Review information about a Limited Liability Company (LLC) and the federal tax classification process.
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
Single member limited liability companies | Internal Revenue Service
Review information about the Limited Liability Company (LLC) structure and the entity classification rules related to filing as a single-member limited liability company.
About Form SS-4, Application for Employer Identification Number …
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, …
S corporations - Internal Revenue Service
In order to become an S corporation, the corporation must submit Form 2553, Election by a Small Business Corporation signed by all the shareholders. See the Instructions for Form 2553 PDF …
2024 Form 10401040 Form 1040 (2024)
Business structures - Internal Revenue Service
Oct 2, 2025 · Your business structure determines which income tax return form you file. Consider legal and tax issues when selecting a business structure.
LLC filing as a corporation or partnership - Internal Revenue Service
Review information about the Limited Liability Company (LLC) structure and the entity classification rules related to filing as a corporation or partnership.
Starting a business - Internal Revenue Service
Find federal tax information for people starting a business, and information to assist in making basic business decisions.