An Employer Identification Number is the Social Security number of your business — and like a Social Security number, it is free from the government. Yet a small industry of websites charges $50 to $300 to “file” your EIN application, doing nothing the IRS would not do for you in fifteen minutes online. This guide shows exactly how to get an EIN from the IRS for free, who actually needs one, and how to avoid the traps.
Table of Contents
- What an EIN Is
- Who Needs an EIN (and Who Does Not)
- The “Free” Warning: Avoiding EIN Scams
- How to Apply Online: Step by Step
- Other Application Methods
- After You Get Your EIN: Next Steps
- Key Takeaways
What an EIN Is
An Employer Identification Number (EIN), also called a Federal Tax Identification Number, is a unique nine-digit number (formatted XX-XXXXXXX) the IRS assigns to business entities for tax administration. It identifies your business on tax returns, payroll filings, and information returns the way your SSN identifies you personally. Banks require it to open business accounts, and most states reference it in their own registration systems.
Crucially, an EIN is not a business license, not a state registration, and not permission to operate — it is purely a federal tax identifier. Forming an LLC with your state and obtaining an EIN from the IRS are separate steps, and you generally need the state entity (or a firm start date) before the EIN application makes sense. Many founders conflate the two and wonder why their “registered business” cannot open a bank account: the missing piece is usually the EIN.
One EIN per entity is the rule. If you operate multiple distinct businesses as separate LLCs or corporations, each gets its own EIN. A sole proprietor who later forms an LLC needs a new EIN for the LLC — the old sole-proprietorship EIN (if any) does not transfer. Keep the IRS confirmation letter (CP 575) permanently; it is the official proof of your number that banks and agencies may request.
Who Needs an EIN (and Who Does Not)
You are required to have an EIN if your business has employees, operates as a corporation or partnership, withholds taxes on non-wage income paid to nonresident aliens, has a solo 401(k) plan, or deals with certain specialized tax situations (estates, trusts, nonprofits, and others). If any of these apply, the EIN is mandatory, not optional.
Even when not strictly required, an EIN is strongly advisable for most businesses. Single-member LLCs with no employees are not federally required to have one, but banks will demand it for a business account, wholesalers and vendors often request it, and using an EIN instead of your SSN on W-9 forms and invoices meaningfully reduces identity-theft exposure. Freelancers filing Schedule C can operate on their SSN legally — but handing your SSN to every client is an unnecessary risk that a free EIN eliminates.
The only businesses that can comfortably skip it are casual sole proprietorships with no employees, no business bank account, and no plans to grow — the proverbial lemonade stand. Everyone else should get one. Since it costs nothing and takes minutes, there is no reason to operate without one, a point echoed across new-business checklists and freelancer finance guides.
The “Free” Warning: Avoiding EIN Scams
Here is the single most important fact in this guide: the IRS never charges for an EIN. Not online, not by fax, not by mail — never. Any website charging a “filing fee,” “processing fee,” or “expedited service fee” for an EIN is a private company inserting itself as a middleman between you and a free government service. Some are legitimate document-preparation services that disclose what they are; many are designed to look official, with names, seals, and URLs crafted to mimic the IRS.
Red flags include any price attached to the EIN itself, countdown timers pressuring you to “file today,” and sites that bundle the EIN with state filings at inflated prices without clearly itemizing what is government fee versus markup. The official application lives only on irs.gov — check that the domain is exactly irs.gov before entering your Social Security number anywhere.
Also beware of “EIN lookup” and “EIN verification” upsells. Your EIN confirmation arrives directly from the IRS the moment your online application completes; you do not need a third party to retrieve or verify it. If you lose the confirmation letter, the IRS can provide verification by phone — again, free. Identity protection starts with not handing your SSN to unnecessary intermediaries, a principle that applies to credit freezes and every other financial interaction.
How to Apply Online: Step by Step
The IRS online EIN application is the fastest method — most applicants receive their number immediately upon completion. It is available during IRS operating hours (generally weekdays, with nightly and weekend maintenance windows), and the session times out after inactivity, so gather your information first. You will apply as the “responsible party”: the individual or entity that controls the business, identified by SSN or ITIN.
- Confirm eligibility: the responsible party must have a valid Taxpayer Identification Number (SSN or ITIN), and you may apply for only one EIN per responsible party per day.
- Go to the official IRS EIN assistant on irs.gov — navigate from the IRS homepage rather than clicking search-engine ads, which are often paid placements by middlemen.
- Select your entity type (sole proprietorship, LLC, corporation, partnership, etc.) and answer the interview-style questions about what the business does and why you need the EIN.
- Enter the responsible party information exactly as it appears on tax records — mismatches are the top cause of rejections.
- Review and submit. The system validates your answers in real time; upon approval, your EIN displays immediately.
- Save the confirmation. Download or print the confirmation notice (and the IRS will mail the official CP 575 letter). Store it with your formation documents permanently.
The whole process typically takes 10–15 minutes. International applicants without an SSN or ITIN cannot use the online system and must apply by phone or mail, which takes longer — plan accordingly if that is your situation.
Other Application Methods
If the online system is down or you are ineligible to use it, the IRS accepts EIN applications by fax and mail using Form SS-4. Fax is meaningfully faster than mail (days versus weeks), and the IRS publishes dedicated fax numbers for domestic and international applicants. Mail remains the slowest option — allow several weeks — but it works from anywhere.
Phone applications are available for international applicants. Whichever method you choose, the information required is identical: legal name, trade name if any, mailing address, responsible party details, entity type, reason for applying, start date, and expected employee counts. Preparing Form SS-4 as a worksheet — even if you ultimately apply online — ensures you have every answer ready and reduces session-timeout risk.
Timing tip: apply for the EIN after your state entity is formed (for LLCs and corporations) so the legal name matches exactly, but before you open bank accounts, hire employees, or file your first business tax return. The SBA’s startup guidance at sba.gov places the EIN in this sequence within its broader launch checklists.
After You Get Your EIN: Next Steps
With EIN in hand, the typical next steps are: open a business bank account to separate finances from day one, register for state tax accounts (sales tax, employer withholding) if applicable, set up payroll or contractor-payment systems before the first hire or payment, and provide the EIN on W-9 forms instead of your SSN.
Update your records everywhere the business identity matters: vendor accounts, payment processors, business licenses, and insurance policies. If you elected or plan to elect S corporation taxation, the EIN is required before the election filing. And calendar your ongoing obligations — the EIN does not file your taxes for you; quarterly estimates, payroll deposits, and annual returns all still apply on their own schedules.
Finally, guard the number. An EIN in the wrong hands enables business identity theft: fraudulent tax returns, bogus credit accounts, and phantom payroll schemes filed under your business name. Store the confirmation letter securely, share the EIN only where legitimately required, and monitor your business credit file periodically — the same vigilance you apply to personal financial data extends to the business.
