How to Get or Find Your FEIN Number
Last updated November 5, 2026 · Written by the EIN Registration filing team
Never had a FEIN? We prepare and file the application and email you the number.
Start Now →If you have never had one
Apply with the IRS once the business exists. Online answers in the same session when the IRS accepts it, and fax takes about 11 business days. See how to apply for an EIN, or how to get one for an LLC.
If you had one and cannot find it
- The CP 575 letter the IRS sent, or the PDF from your online application.
- A filed federal return for the business.
- Your bank, if you opened the account with the number.
- State registrations and payroll records.
- The IRS, at 1-800-829-4933. An authorized person can ask for it. See how to get a 147C letter.
If you need another company’s FEIN
Ask for a Form W-9. Our free EIN lookup searches the public records where these numbers appear, and how to find a company’s EIN covers the rest.
Quick answers
Is a FEIN different from an EIN?
No. FEIN stands for federal employer identification number. It is the same IRS number, and there is no separate application.
How do I look up my FEIN online?
The IRS has no online lookup. Check your IRS letter, a filed return or your bank, or call the IRS.
Can I get a letter that shows my FEIN?
Yes. If you lost the original CP 575, an authorized person can ask the IRS for a 147C letter.
Does a state issue a FEIN?
No. Only the IRS issues it. A state issues its own, separate numbers.
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Related guides
- FEIN vs EIN: Is There a Difference? FEIN and EIN are the same nine-digit federal number under two names. Why state forms say FEIN or FEI, and which number to put on them.
- How to Apply for an EIN What to check before you apply for an EIN, where to send it, and what happens after you submit.
- Lost EIN? How to Get an IRS 147C Verification Letter The 147C is the letter the IRS sends to confirm an existing EIN when the CP 575 is gone. Who may ask, the exact call, fax or mail delivery, and the five places your EIN is already written down.
- How to Get My EIN Number Lost your EIN, still waiting on one, or never had one? What to do for each.
- How to Verify an EIN: Check That a Tax ID Is Real The IRS has no public lookup, but payers can use TIN Matching, anyone can ask for the CP 575 or 147C letter and a W-9, and nonprofits and public companies are on the public record. Which route fits, and what verification sites actually do.
You can also apply for an EIN directly with the IRS at irs.gov at no cost.