An Employer Identification Number (EIN) is a nine-digit number the IRS uses to identify a business — think of it as a Social Security number for your company. The good news for new business owners: getting one is free, fast, and done directly through the IRS. The number of websites that charge $50–$300 to “file” an EIN for you are selling a service you never need to pay for.
Do You Even Need One?
Not every business needs an EIN. A sole proprietor with no employees can usually use their own Social Security number for taxes. But you are required to get an EIN if any of the following apply:
- You have employees
- Your business is a corporation or a multi-member LLC (taxed as a partnership)
- You file certain excise or employment tax returns
- You have a Keogh or solo 401(k) retirement plan
Even when it isn’t required, many sole proprietors get one anyway — and it’s a smart move. An EIN lets you open a business bank account, gives clients a number to put on a 1099 instead of your SSN, and reduces how often you have to hand out your personal Social Security number.

How to Get One (Free, in Minutes)
- Go to IRS.gov — search for “EIN” and use the official online EIN Assistant. The application is free
- Apply online during operating hours — the tool is available Monday through Friday, typically 7 a.m. to 10 p.m. Eastern. You must complete it in one session (it times out after about 15 minutes of inactivity)
- Have your information ready — your legal name and SSN (or ITIN), the business’s legal name and structure, and the reason you’re applying
- Receive your EIN immediately — on completion, the number is issued on screen. Download and save the confirmation letter (CP575) right away — the IRS won’t email you another copy
If you don’t have an SSN or ITIN, or you prefer not to apply online, you can apply by fax (Form SS-4) or by mail, which takes longer — about four business days by fax and four to five weeks by mail.
Common Mistakes to Avoid
- Paying a third-party site — the IRS application is always free. Sites that charge are reselling a free government service
- Applying before you’ve chosen a structure — if you plan to form an LLC, set it up first, then get the EIN in the LLC’s name
- Losing the confirmation letter — banks and lenders ask for it. Save a copy the moment it’s issued
- Getting multiple EINs by mistake — you generally only need one per business entity. Applying repeatedly creates confusion
The Bottom Line
An EIN is free, takes a few minutes to get directly from the IRS, and is worth having even when it isn’t strictly required — it keeps your Social Security number off client paperwork and is required to open a business bank account. Apply through IRS.gov, save the confirmation letter, and never pay a third-party site for what the government provides at no cost.