Introduction
If you’re starting a business, hiring employees, or opening a business bank account, you’ve probably come across the term what is FEIN. Many new business owners are confused about what a FEIN is, why it matters, and whether they actually need one. Understanding this important tax identification number can save you time, simplify tax filing, and help your business stay compliant with federal regulations.
A Federal Employer Identification Number (FEIN) is one of the most important identifiers assigned to businesses in the United States. Similar to how individuals use a Social Security Number (SSN), businesses use a FEIN for tax reporting and official government purposes.
This guide explains what is FEIN, who needs one, how to apply, its benefits, and answers the most common questions people search online.
What Is FEIN?
A FEIN, or Federal Employer Identification Number, is a unique nine-digit number issued by the Internal Revenue Service (IRS). It identifies businesses for federal tax purposes and is sometimes called an Employer Identification Number (EIN).
When people ask what is FEIN, they’re referring to the same number as an EIN. The terms are used interchangeably, although FEIN emphasizes that it is issued by the federal government.
A typical FEIN looks like this:
12-3456789
Each business receives its own unique identification number, which remains associated with that business throughout its existence unless ownership or structure changes significantly.
Why Is a FEIN Important?
Understanding what is FEIN also means understanding why businesses rely on it every day.
A FEIN allows businesses to report taxes accurately, pay employees, file payroll tax returns, and communicate with federal agencies. It also helps separate business finances from personal finances, improving financial organization and legal protection.
Many financial institutions require a FEIN before allowing a business to open checking accounts or apply for loans.
Who Needs a FEIN?
Not every business is legally required to have a FEIN, but many are.
Corporations almost always need one because they are separate legal entities. Partnerships also require a FEIN since multiple owners are involved.
Businesses that hire employees must obtain a FEIN to report payroll taxes and employment information correctly.
Trusts, estates, nonprofits, and many limited liability companies (LLCs) also need a FEIN depending on their tax classification.
Even sole proprietors without employees often choose to obtain a FEIN instead of using their Social Security Number for added privacy and professionalism.
Who May Not Need a FEIN?
Some sole proprietors who operate alone and have no employees can legally use their Social Security Number instead of a FEIN.
However, many still obtain a FEIN because it helps reduce the need to share personal identification information with vendors, clients, and financial institutions.
As a business grows, obtaining a FEIN becomes increasingly beneficial.
How Does a FEIN Work?
To understand what is FEIN, think of it as a permanent identification number for your business.
Whenever your business files federal tax returns, submits payroll reports, or communicates with government agencies, the FEIN identifies your company.
Banks, lenders, payroll providers, and many government agencies also use this number when verifying your business identity.
How to Apply for a FEIN
Getting a FEIN is usually straightforward.
The IRS provides an online application system that allows eligible businesses to receive a FEIN immediately after completing the application.
Applicants provide information such as the business name, legal structure, responsible party, address, and reason for applying.
Applications may also be submitted by fax or mail, although those methods generally take longer to process.
Is There a Fee to Get a FEIN?
One of the biggest misconceptions surrounding what is FEIN is that obtaining one costs money.
The IRS issues FEINs completely free of charge.
While some third-party companies charge fees to submit applications on behalf of businesses, using those services is entirely optional.
When Should You Apply for a FEIN?
It’s best to apply before beginning major business activities.
Many businesses obtain a FEIN immediately after registering their company because banks, payroll providers, and licensing agencies often request it.
Applying early helps avoid delays when opening business accounts or hiring employees.
FEIN vs Social Security Number
Although both numbers identify taxpayers, they serve different purposes.
A Social Security Number identifies individual taxpayers, while a FEIN identifies businesses and organizations.
Using a FEIN instead of your personal Social Security Number can improve privacy when completing tax forms, working with vendors, or issuing invoices.
FEIN vs EIN
Many people search for the difference between FEIN and EIN.
In reality, there is no practical difference.
FEIN stands for Federal Employer Identification Number, while EIN simply stands for Employer Identification Number.
Both refer to the exact same IRS-issued number.
Benefits of Having a FEIN
Obtaining a FEIN offers several practical advantages beyond tax compliance.
A FEIN helps establish your business as a separate legal entity and supports stronger financial organization. It also makes opening business bank accounts much easier and can simplify applying for commercial credit.
Using a FEIN instead of your Social Security Number reduces the amount of personal information you must share with customers, suppliers, and contractors. This added privacy is especially valuable for small business owners.
Many payroll services, accounting software providers, and government agencies also require a FEIN before providing services.
Can You Change Your FEIN?
Generally, a FEIN remains with your business permanently.
However, certain major business changes may require obtaining a new FEIN. Examples include changing from a sole proprietorship to a corporation, creating a new partnership, or restructuring the legal ownership of the company.
The IRS determines whether a new FEIN is required based on the specific business change.
How Long Does It Take to Receive a FEIN?
Businesses applying online typically receive their FEIN immediately after completing the IRS application.
Applications submitted through fax or mail usually require additional processing time.
For most entrepreneurs, the online application is the fastest and most convenient option.
Common Mistakes Businesses Make
Many first-time business owners misunderstand what is FEIN and make avoidable mistakes.
Some accidentally apply multiple times because they believe the first application failed. Others use their Social Security Number even after receiving a FEIN, creating unnecessary confusion during tax filing.
Businesses should also keep their FEIN confirmation notice in a secure location since banks and government agencies may request it in the future.
How to Keep Your FEIN Secure
Although a FEIN is less sensitive than a Social Security Number, it should still be protected.
Avoid sharing it publicly unless required for legitimate business purposes. Store official IRS documents securely and verify requests before providing your FEIN to unfamiliar organizations.
Understanding what is FEIN is essential for anyone starting or managing a business in the United States. A Federal Employer Identification Number serves as your business’s official tax identity, making it easier to file taxes, hire employees, open bank accounts, and establish business credibility.
What Is P&L – P&L stands for Profit and Loss, a financial statement that shows a business’s revenues, expenses, and net profit or loss over a specific period. It helps business owners measure financial performance, track profitability, and make informed decisions to improve growth and manage costs effectively.
FAQs
What is FEIN used for?
A FEIN is used to identify businesses for federal tax reporting, payroll processing, opening business bank accounts, and filing IRS documents.
Is FEIN the same as EIN?
Yes. FEIN and EIN refer to the same Employer Identification Number issued by the Internal Revenue Service.
Do sole proprietors need a FEIN?
Not always. Sole proprietors without employees may use their Social Security Number, although many choose to obtain a FEIN for privacy and business purposes.
Can I get a FEIN for free?
Yes. The IRS issues FEINs at no cost through its official application process.
How long does it take to get a FEIN?
Online applications are typically approved immediately, while mailed or faxed applications may take several business days or weeks.
Can I use my FEIN instead of my Social Security Number?
For many business-related transactions, yes. A FEIN allows businesses to avoid using the owner’s personal Social Security Number in many situations.
Do I need a FEIN if I have no employees?
It depends on your business structure. Some businesses without employees are still legally required to have a FEIN, while others obtain one voluntarily for convenience and privacy.
