What is a federal ID number for a business?
James Craig
Published Mar 24, 2026
An Employer Identification Number (EIN) is also known as a Federal Tax Identification Number, and is used to identify a business entity. Generally, businesses need an EIN. You may apply for an EIN in various ways, and now you may apply online.
How do I find a federal tax ID number for a company?
Use one of the following options to find another business’s federal tax ID number:
- Ask the company. Someone in the payroll or accounting department should know the company’s tax ID.
- Search SEC filings. Source: SEC.gov.
- Inquire with a credit bureau.
- Use a paid EIN database.
- Use Melissa Database for nonprofits.
What is federal tax ID for an LLC?
When forming a limited liability company (LLC), you’ll need to apply for a federal tax ID number, or employer identification number (EIN), for tax purposes. This nine-digit number is similar to a Social Security number and is issued by the Internal Revenue Service (IRS).
How do I get an EIN number for self employed?
Decide how to want to obtain your EIN You can use the IRS Business & Specialty Tax Line listed above (800-829-4933) You can manually fill out Form SS-4 and mail it to the IRS. You can submit an online application for a tax ID number yourself.
How to get a state business ID number?
Links to SBA sponsored sites, where businesses will be able to receive both state and federal id numbers. If you need a business registration number from one of the states listed on this page, all you need to do is click on one of the links below. You will leave the IRS website and enter the state website.
How to apply for an Employer Identification Number?
You must complete each EIN application individually instead of using any automated process. An Employer Identification Number (EIN) is also known as a Federal Tax Identification Number, and is used to identify a business entity. Generally, businesses need an EIN. You may apply for an EIN in various ways, and now you may apply online.
Where can I get my federal tax ID number?
Apply for an EIN with the IRS assistance tool. It will guide you through questions and ask for your name, social security number, address, and your “Doing Business As” (DBA) name. Your nine-digit federal tax ID becomes available immediately upon verification. What’s your number?
How does a state tax ID work for a small business?
Your state tax ID and federal tax ID numbers — also known as an Employer Identification Number (EIN) — work like a personal social security number, but for your business. They let your small business pay state and federal taxes.