How to Get an EIN for Free: A Step-by-Step Guide (2026)

TL;DR: An Employer Identification Number (EIN) is the tax ID the IRS assigns to your business, and you get it directly from the IRS for free. Apply online and an approved application returns the number immediately. You need an EIN if you have employees, run a corporation or partnership, or file certain excise or retirement-plan returns; a sole proprietor with no employees can keep using a Social Security number instead. The formation-service sites that rank for "how to get an EIN" charge for a filing the IRS gives away, so skip them and go to the source.

Getting an EIN is one of the first tax chores of running a business, and it feeds everything downstream: the W-9 you hand a new client, the 1099s that follow, the business bank account. Set up clean bookkeeping the same week you get the number, so every deduction lands in the right place from day one. A simple business expense tracker beside your EIN paperwork turns the first tax season from a scramble into a review.

What an EIN Is (and What It Isn't)

An EIN is a nine-digit number formatted 12-3456789 that identifies your business to the IRS, the same way a Social Security number identifies you as an individual. The IRS calls it an Employer Identification Number, and you will also see it called a Federal Tax ID Number or FEIN. They are the same thing.

An EIN is a tax identifier, not a license or a legal entity. Getting one does not register a business, form an LLC, or grant a permit. Those are separate steps handled by your state, and an EIN does not replace any of them. It is one of three taxpayer identification numbers the IRS uses, and it helps to know which one applies to you:

A sole proprietor without employees is the one case where an SSN and a business tax ID are the same number. Any other entity that needs a separate business identifier applies for an EIN.

Do You Actually Need an EIN?

Not every one-person business needs an EIN, so start here before you apply. The IRS lists the situations that require one on the instructions for Form SS-4. You need an EIN if any of these is true:

• You have employees, or are about to hire your first one.
• Your business is a corporation or a partnership.
• You file employment, excise, or alcohol, tobacco, and firearms tax returns.
• You have a Keogh or other qualified retirement plan.
• You withhold taxes on income, other than wages, paid to a non-resident alien.
• You are involved with certain trusts, estates, or non-profit organizations.

If none of those applies, you may not need an EIN at all. The IRS treats a single-member LLC as a "disregarded entity" for income tax, and it states plainly that such an LLC "that does not have employees and does not have an excise tax liability does not need an EIN. It should use the name and TIN of the single member owner." The same logic covers a plain sole proprietor: with no employees and no excise or pension filings, your SSN is your business tax ID.

Plenty of solo owners get an EIN anyway, and for good reasons. A bank often wants one to open a business account. Clients issuing you a 1099-NEC prefer it. And it keeps your SSN off every W-9 you send, which is the real privacy win: you hand out the EIN instead of your personal number. If you are still deciding between operating as a sole proprietor or forming an LLC, our guide to sole proprietor vs LLC taxes walks the trade-offs before you commit.

How to Get an EIN for Free, Step by Step

Here is the sentence the top of the search results works hard to bury: the EIN costs nothing. The IRS says it directly on its EIN page, "Beware of websites that charge for an EIN. You never have to pay a fee for an EIN." The formation services ranking above the IRS itself will file the same free application on your behalf and bill you for it. You can do it yourself in minutes.

There are four ways to apply, and which one you use depends on where your business is based and whether you have a U.S. taxpayer number.

Online is the route almost every U.S. business should take. The IRS online application works if your principal business is in the United States or a U.S. territory and the responsible party has a valid SSN, ITIN, or EIN. Complete it in one sitting, since the session does not save, and once the IRS approves it, "we'll issue your EIN immediately." The tool is open during posted hours, Eastern time, so check the page if you are applying late at night.

Fax and mail use the same paper Form SS-4 (the current revision is dated December 2025). Fax the completed form to 855-641-6935 for a domestic business and the IRS generally returns your EIN within four business days. Mail it to the EIN Operation in Cincinnati and expect about four weeks. These exist mostly for applicants the online tool turns away.

Phone is for international applicants only. If you have no U.S. principal business or U.S. taxpayer number, call the IRS at 267-941-1099, a non-toll-free number, 6:00 a.m. to 11:00 p.m. Eastern time, Monday through Friday, and an assistor takes the SS-4 information over the line.

What the application asks for

Whichever method you choose, Form SS-4 wants the same core details: the legal name and mailing address of the business, its structure (sole proprietor, LLC, corporation, partnership), the reason you are applying, and the number of employees you expect in the next year. Two fields trip people up.

The responsible party is the individual who ultimately owns or controls the business, and you give their SSN or ITIN. Since 2018 this must be a person, not another company, unless a government entity is applying. For a solo business, the responsible party is you.

The one-per-day limit is a hard rule the IRS enforces to keep the process fair: "You can apply for only 1 EIN per responsible party per day." If you are setting up several entities, space the applications across days.

Common EIN Mistakes That Cost You Money or Time

A handful of avoidable errors show up again and again.

Paying a third party. The single most common one. A paid site charges $50 to $300 to file a form the IRS processes for free in minutes. There is no faster tier and no premium queue; the EIN is the EIN. If a site asks for payment, you are on the wrong page.

Applying before the business exists. The IRS assigns the EIN to a legal entity, so form your LLC or partnership at the state level first, then apply. Getting the number for an entity that never gets created leaves an orphaned EIN on file.

Confusing the EIN with the business itself. An EIN does not create an LLC, secure a business name, or serve as a license. It is a tax ID and nothing more. You still register the entity and pull any permits separately.

Thinking every change means a new number. This one wastes real time. The IRS is explicit that a sole proprietor does not need a new EIN to "change your business name or locations" or when you "own multiple businesses." You do need a new one if you incorporate, form a partnership, or declare bankruptcy. Moving offices or rebranding keeps the number you have.

Guessing your entity type. The structure you check on the SS-4 tells the IRS how your business is taxed, so match it to how you registered. A single-member LLC that has not elected corporate treatment applies as a disregarded entity, not a corporation.

After You Get Your EIN: Put It to Work

The moment the IRS assigns your EIN, save the confirmation. Online applicants can download the confirmation letter on the spot, and the IRS issues a CP 575 notice that it tells you to "keep in your permanent records." Banks and other institutions accept it as written proof of your EIN, and replacing it later means a separate request, so file it where you will find it.

From there, the EIN threads through the rest of your tax life. You put it on the W-9 you give clients, which lets them issue your 1099s against the business rather than your personal SSN. You use it to open a business bank account, which keeps business and personal money separate, the single habit that makes bookkeeping tractable. And it is the number that ties your records together when you file, whether you report on a Schedule C as a sole proprietor or through a partnership or corporate return.

That last piece is where good records earn their keep. An EIN organizes your business on paper; your bookkeeping proves what happened. Capturing receipts and income as they land, rather than reconstructing them in April, is what lets you claim every deduction the business is entitled to. SparkReceipt was built for exactly this handoff: freelancers and solo owners scan receipts, import them from email, and hand an accountant clean, categorized data instead of a shoebox. If you are also setting aside for quarterly estimated taxes, the same tracked expenses shrink each payment. Get Started once the EIN is in hand and your first tax season is a review, not a rescue.

Frequently Asked Questions

Is an EIN really free? Yes. The IRS issues it at no charge through its own application. Any site charging a fee is a third party filing the free form for you.

How long does it take to get an EIN? Online, immediately upon approval. By fax, generally within four business days. By mail, about four weeks. The online tool is the fastest by a wide margin.

Can a sole proprietor use their SSN instead of an EIN? Yes, if you have no employees and no excise or retirement-plan filings. Many sole proprietors still get an EIN to keep their SSN off client paperwork and to open a business bank account.

Do I need a new EIN if I change my business name or move? No. The IRS does not require a new EIN to change your business name or location. You need a new one only if you incorporate, form a partnership, or declare bankruptcy.

Does an EIN expire? No. An EIN is permanent and is never reused for another business, even if you never file a return under it. It stays assigned to your entity.

What's the difference between an EIN, an SSN, and an ITIN? An SSN identifies you as an individual, an ITIN is for people who must file U.S. taxes but can't get an SSN, and an EIN identifies a business or other entity to the IRS.

Key Takeaways

• An EIN is free and issued directly by the IRS. Skip any site that charges for it.
• Apply online if your business is U.S.-based and you have an SSN or ITIN; the number is issued immediately.
• A sole proprietor with no employees, and a disregarded single-member LLC, can use an SSN instead of an EIN.
• The responsible party must be a person, and the IRS assigns only one EIN per responsible party per day.
• Changing your name or address does not require a new EIN; incorporating, forming a partnership, or bankruptcy does.
• Save the CP 575 confirmation, then track receipts and income against the business from the start so tax season is a reconciliation.