Introduction
A Federal Employer Identification Number (FEIN) is a unique identifier assigned by the IRS for businesses. Employers use a FEIN for tax reporting, payroll processing, and compliance. This guide explains what a FEIN is, why employers need it, how to get one, and how to use it effectively.
What Is a FEIN?
A FEIN — also known as Employer Identification Number (EIN) — is a nine-digit number assigned by the Internal Revenue Service (IRS). It functions similarly to a Social Security number but for business entities. A FEIN identifies your business for tax purposes and other official records.
Why Employers Need a FEIN
Employers need a FEIN for a range of purposes, including:
- Filing federal tax returns
- Reporting and withholding payroll taxes
- Opening business bank accounts
- Applying for business licenses and permits
Without a FEIN, employers may not be able to legally operate or comply with federal tax requirements.
How to Obtain a FEIN
Employers can request a FEIN directly from the IRS. The application process typically involves:
- Completing IRS Form SS-4
- Applying online via the IRS website
- Receiving the assignment immediately upon approval
It’s important to provide accurate information during the application to avoid delays or errors.
Using Your FEIN
Once issued, a FEIN is used for a variety of business purposes, such as payroll tax filings, reporting new hires, opening accounts, and dealing with federal agencies. Keep your FEIN secure and accessible for official use.
Frequently Asked Questions
Is a FEIN the same as an EIN?
Yes. FEIN and EIN are commonly used interchangeably to refer to the Federal Employer Identification Number.
Do all employers need a FEIN?
Most employers need a FEIN for tax reporting and payroll; certain small business types may have additional requirements based on their structure and tax obligations.
Can a business have more than one FEIN?
In certain cases, businesses with multiple locations, separate legal entities, or significant structural changes may need more than one FEIN.
Where do I find my FEIN?
Your FEIN is listed on official IRS correspondence, tax documents, and business payroll records. Employers should keep a copy for reference.




