Unlocking Your Business Identity: How to Apply for an IRS EIN
The essential first step for new businesses: Master the Form SS-4 and the IRS portal
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Obtaining an Employer Identification Number (EIN) is often the first "official" step in transforming a business idea into a legal entity. While the process is free and relatively straightforward, the IRS has specific guardrails to ensure these numbers are issued to legitimate responsible parties.
Determining Your Eligibility
Before navigating to the IRS portal, you must ensure you meet the basic requirements. An EIN is necessary if you have employees, operate as a corporation or partnership, or file specific tax returns (such as employment or excise taxes).
To apply, your principal business must be located in the United States or U.S. Territories. Additionally, the person applying—known as the "Responsible Party"—must have a valid Taxpayer Identification Number, typically a Social Security Number (SSN) or an Individual Taxpayer Identification Number (ITIN). The IRS limits EIN issuance to one per responsible party per day to prevent system abuse.
The Preferred Path: Online Application
The most efficient method is the IRS.gov online application. This service is available Monday through Friday, from 7:00 a.m. to 10:00 p.m. Eastern time.
Real-Time Validation: The online system validates your information during the session.
Immediate Issuance: Unlike paper forms, the online application generates your EIN immediately upon successful completion.
Session Limits: You must complete the application in one sitting; the session will expire after 15 minutes of inactivity for security purposes.
Once you receive your number, it is vital to download and save the confirmation notice (CP 575) immediately, as the IRS does not provide a digital "reprint" later without a formal request by mail.
Alternative Methods: Fax and Mail
If you prefer traditional methods or do not have a valid SSN/ITIN (common for international applicants), you can use Form SS-4, Application for Employer Identification Number.
Fax: You can fax the completed Form SS-4 to the appropriate state fax number. If you provide your own fax number for a return, you typically receive your EIN within four business days.
Mail: This is the slowest route. Mailing a completed SS-4 to the IRS service center can take four to five weeks for processing.
Avoiding Common Pitfalls
A frequent point of confusion is the cost. Applying for an EIN is a free service provided by the IRS. Many third-party websites look official and offer to "process" your EIN for a fee ranging from $50 to $300. These are private filing services, not the government. To avoid unnecessary costs, ensure you are on a .gov website.
Finally, remember that your EIN is a permanent identifier. While you can close your business account with the IRS later if the entity becomes inactive, the number itself is never reused or reassigned to another business. It remains attached to that entity's legal history indefinitely.
Information published to or by The Industry Leader will never constitute legal, financial or business advice of any kind, nor should it ever be misconstrued or relied on as such. For individualized support for yourself or your business, we strongly encourage you to seek appropriate counsel.
