How to Get an EIN From the IRS (Free, Step by Step)

An EIN is one of the first and most important steps in setting up a real business, and it is the identifier your business credit file will be built under. The good news is that getting one is free, fast, and something you can do yourself in about fifteen minutes. This guide walks you through exactly how, and warns you away from the single most common mistake: paying a third-party service for something the government gives you for nothing.

Why you need an EIN

An EIN, or Employer Identification Number, is a nine-digit number the IRS assigns to your business. Think of it as a Social Security number for your company. You need it to open a business bank account, to file business taxes, to hire employees, and, crucially for building credit, to establish a business credit file that is separate from your personal credit. Every business tradeline, bureau record, and lender file attaches to your EIN, which is why getting one is the foundation of building business credit under your EIN rather than your Social Security number.

Before you start

• Have your business's legal name and address ready, exactly as you want them on record.
• Know your entity type (LLC, corporation, sole proprietorship, and so on). If you are forming an LLC, do that first.
• Have the responsible party's Social Security number or ITIN. The responsible party is the person who controls the business.
• Be ready to finish in one sitting: the online session does not save, and it times out after inactivity.

How to get your EIN, step by step

1. Go to the IRS EIN Assistant at irs.gov. Search for 'apply for an EIN online' on irs.gov to reach the official tool, and make sure you are on the irs.gov domain, not a look-alike site.
2. Start the application during operating hours. The tool runs on a posted schedule, roughly 6 a.m. to 1 a.m. Eastern on weekdays with more limited weekend hours, so apply within that window.
3. Select your entity type, such as LLC or corporation, and confirm the details the tool asks about your structure.
4. Enter the responsible party's name and SSN or ITIN. This is the individual who controls the business.
5. Enter your business's legal name, address, and the reason you are applying (for example, started a new business).
6. Answer the remaining questions about your business, such as whether you expect to have employees.
7. Review everything carefully, then submit. If approved, the tool issues your EIN immediately on screen.
8. Download and save your EIN confirmation letter (Form CP 575) right away. Store it somewhere safe; you will need your EIN constantly.

Common issues

• The session timed out. The online tool does not save progress and times out after about fifteen minutes of inactivity. Complete it in one sitting.
• You already used your one EIN for the day. The IRS limits you to one EIN per responsible party per day.
• You do not have an SSN or ITIN. Applicants without one generally cannot use the online tool and must apply by mail or fax with Form SS-4.
• You reached a site asking for payment. That is not the IRS. Close it and go directly to irs.gov.

Common mistakes to avoid

• Paying a third party. The single most common mistake is paying a website to 'get' your EIN. The IRS issues it for free; there is no faster or more official route than irs.gov.
• Applying before forming your entity. If you intend to be an LLC or corporation, form it first so the EIN attaches to the right legal business, not to you as a sole proprietor.
• Using inconsistent business details. The name and address on your EIN application should match your formation documents exactly. A mismatch here echoes through every future application.
• Losing the confirmation letter. Your CP 575 confirmation is hard to replace. Save a digital copy the moment it is issued.
• Applying multiple times. You are limited to one EIN per responsible party per day, and duplicate entities can muddy your records. Apply once, carefully.

How your EIN fits into building business credit

Getting the EIN is not the finish line, it is the starting line. On its own, an EIN is just an identifier; it carries no credit and no score. What it does is create the container that your entire business credit file will live in. Once you have it, the real work begins: opening a business bank account in the business's name, getting your D-U-N-S number so Dun & Bradstreet can build your file, and then opening reporting accounts in the right order so on-time payments start showing up on your bureau reports.

This is exactly where most owners stall. They get the EIN, maybe open one vendor account, and then guess at what comes next, often applying for cards they do not yet qualify for and burning inquiries in the process. A structured approach removes the guesswork. Company Base OS takes your EIN as the foundation and maps the precise sequence of accounts to open so your new business credit file fills in cleanly and in the order lenders reward. If you want to see where you stand and what to do next, the free Fundability quiz is the fastest way to start.