What Free EIN Lookup Tools Exist?
Exactly 2 free public tools: SEC EDGAR for public companies and the IRS Tax Exempt Organization Search for nonprofits. Both cost $0. Every other free route reads an EIN off a document the business already handed you.
| Tool | Covers | Cost | Where the EIN appears |
|---|---|---|---|
| SEC EDGAR | Public companies | $0 | Cover of Form 10-K and 10-Q |
| IRS Tax Exempt Org Search | 501(c)(3) nonprofits | $0 | Organization record and Form 990 |
| The business itself | Any business | $0 | On a Form W-9 you request |
| Your own records | Your business | $0 | CP-575, tax return, bank file |
| IRS 147C letter | Your business | $0 | Faxed or mailed by the IRS |
Source: SEC EDGAR, IRS Tax Exempt Organization Search, verified August 2026.
SEC EDGAR has indexed public-company filings since 1993, holds more than 800,000 filers, and its full-text search reaches back to 2001, and a public company prints its EIN on the cover of every Form 10-K and Form 10-Q. The IRS search covers 501(c)(3) nonprofits, which also disclose the EIN on the annual Form 990, mirrored free across more than 1.8 million organizations. Both return a result in under 2 minutes. The public-company disclosure traces to the Securities Exchange Act of 1934: a 10-K is filed 60 to 90 days after the fiscal year ends, and the 10-Q follows within 40 to 45 days. More on each route sits on LLC EIN number lookup and EIN lookup.
How Do You Get Your Own EIN for Free?
Call the IRS Business and Specialty line at 800-829-4933 and request a 147C letter for $0. Check 5 free sources first: the CP-575, a filed tax return, a business bank application, a prior Form W-9, and your accountant's file. If none survive, the 147C is the free replacement.
The CP-575 is the fastest source, because the 9-digit number sits at the top of the letter the IRS mailed when the EIN was assigned. A filed Form 1065, 1120, or 1040 with Schedule C carries it in the identification block. If every copy is gone, the 147C costs $0 and is released only to the responsible party, faxed during the call or mailed in 4 to 6 weeks. The line runs Monday through Friday, 7 a.m. to 7 p.m. local time. If you never received an EIN at all, we file it for $97 standard or $127 fast. The full recovery route sits on EIN lookup and lost LLC EIN.
The 147C letter is the IRS's official confirmation of an EIN already on file, and it carries no fee. The agent faxes it during the same call or mails a copy that lands in 4 to 6 weeks. Because the IRS releases the letter only to the responsible party listed on the account, keep the entity's exact legal name and address in front of you when you dial 800-829-4933. For the full call script and the 3 verification questions the agent asks, read the 147C letter guide, and compare it against the original assignment notice on the LLC CP-575 letter page.
Before you place the call, sweep the 5 free sources in order, since 4 of them return the number in under 1 minute. Old bank onboarding files, a signed Form W-9 you sent a client, a prior-year Form 1099, the CP-575 PDF, and your bookkeeper's records each carry the 9 digits. Only when every copy is gone does the 147C become the fallback. A full checklist of every place the number hides sits on how to find your EIN.
No SSN. No passport upload.
Do Paid EIN Lookup Services Work?
Only for EINs a business already disclosed. No paid service can read the IRS master file, so a data broker returns an EIN only when it came from a public filing that a $0 SEC or nonprofit search already covers.
Dun and Bradstreet, LexisNexis, and similar databases compile business records and sometimes surface an EIN, but the number is confidential at the IRS, so no vendor has authorized access to it. For the 2 cases where an EIN is genuinely public, the free searches return the same result at $0, whether the paid tier charges $10 or $100. For a private company, the paid search fails for the same reason the free one does. To confirm a number you already hold, see how to verify an EIN.
The failure is structural, not a matter of finding the right vendor. An EIN is issued and stored on the IRS master file under 26 U.S.C. section 6109, and no commercial database holds authorized read access to that file. A paid broker resells only a number that already escaped into a public record — an SEC filing, a Form 990, a court docket, or a press release. When a seller charges $10 to $100 for a public company's EIN, you pay for a lookup the free SEC EDGAR search runs at $0. For a private LLC that filed nothing public, the paid tier returns nothing an official source would. Confirm an IRS EIN number for your own entity through the IRS directly.
If the goal is written proof rather than raw digits, an official EIN verification letter from the IRS carries more weight than any $50 broker report a bank or lender will not accept. The letter states the exact 9-digit EIN and the legal name on file, printed on IRS letterhead, at no cost. A paid report is a screenshot of secondhand data; the 147C is the primary record, which is why the 2 are not interchangeable for a loan, a merchant account, or a 1099 correction.
Why Is There No Free Registry for Private EINs?
Because federal law keeps a private EIN confidential. The IRS publishes no searchable list of all EINs, so the 1 reliable route to a private company's number is a Form W-9, required once you pay it $600 or more in a year.
Public companies and 501(c)(3) nonprofits are the exception: disclosure rules force the EIN onto a Form 10-K or Form 990, which is why those 2 cases are free. A private LLC files nothing public that carries the number, so it never enters a free registry. When you pay a contractor $600 or more, the Form W-9 supplies the EIN, and a missing or wrong number triggers 24% backup withholding on every payment — a rate that fell from 28% to 24% for payments after 2017. The LLC path is detailed on LLC EIN number lookup.
For a new LLC, the practical takeaway is to keep your own records airtight from day 1, because the number will never surface in a public registry later. Store the CP-575 PDF, print the EIN into the operating agreement, and record it in the business bank file, so any of the 3 recovers it in seconds. A private LLC files no 10-K and no Form 990, which is exactly why it stays out of the 2 free public tools that serve public companies and nonprofits. If you have not filed Form SS-4 yet, we return the 9-digit EIN and CP-575 for $97 standard or $127 fast — see how to get an EIN.
If you are still deciding whether the LLC even needs its own number, the test is simple: an LLC needs an EIN once it hires an employee, elects corporate or S-corporation tax treatment, or opens a business bank account that requires 1. A single-member LLC with no employees runs on the owner's Social Security number until 1 of those triggers fires. The full decision path, with the 4 common triggers, sits on what is an EIN number for an LLC.
This page states federal rules current as of August 2026. It is not legal or tax advice. Confirm your position with a licensed CPA or attorney.