Section A: Select One Box
Box 1 for a person receiving notices for an unknown business with an EIN in their name, with a space for that nine-digit EIN. Box 2 for a business, estate, trust or exempt organization that may be a victim.
14039-B
Business Identity Theft Affidavit
- Agency
- IRS
- Revision
- Rev. 5-2021
- Fillable fields
- 48
- Pages
- 2
- Official source
- IRS form page
- Checked
- October 21, 2026
Form 14039-B: Business Identity Theft Affidavit
Form 14039-B is the IRS affidavit for reporting suspected identity theft involving a business entity, estate, trust or exempt organization. Its privacy notice says the primary purpose of the form is to provide a means for reporting the theft of your identity to the IRS, so the IRS can help resolve the federal tax issues it caused and protect the account in the future.
The form covers two situations. In the first, a person who is not a business owner and has not applied for an Employer Identification Number (EIN) is receiving IRS notices for an unknown business in their name with an assigned EIN. In the second, the person suspects the entity listed on the form is a victim of identity theft. In that case the form is completed by someone with the legal authority to act for the entity.
The form carries its own submission instructions on page 2. You can fill out Form 14039-B free in your browser on this page and download the result without an account.
What's on Form 14039-B
Section B: My Business Information
Legal name, approximate date established, EIN, address, tax forms and periods affected, previous names, whether the EIN is active, and a box if no return was required for the period.
Section C: Individual Submitting This Form
The submitter's position with the entity, name, SSN or ITIN, mailing address if different, phone number and best times to call.
Section D: Reason for Filing
A required brief explanation with relevant dates. Extra pages can be attached.
Section E: Supporting Documentation
Any known details about the person misusing the EIN or name, such as a police report, plus check boxes for the identity documents being sent by entity type.
Section F: Signature
The person in Section C signs under penalties of perjury and enters the date signed as mm/dd/yyyy.
How to fill out Form 14039-B
- 1
Section A
Check one box. The form says box 1 goes on to Sections C, D and F, and box 2 goes on to Sections B, C, D, E and F.
- 2
Section B
Enter the entity's legal name, EIN and address, the tax forms and years or quarters affected, and any previous names. Check whether the EIN is active or not active, and give the final return period if operations ceased.
- 3
Section C
Check the position that applies, or Not applicable if box 1 was checked in Section A. Enter your name, nine-digit SSN or ITIN, phone number and the best times to call.
- 4
Section D
Write a brief explanation of what happened with relevant dates. The form marks this section as required.
- 5
Section E
Add any known information about who is misusing the EIN or name. A sole proprietor sends two documents: a government photo ID with signature and a document supporting business operation. Other entities send one or more of the listed entity documents.
- 6
Section F
The person named in Section C signs and dates the form.
Why fill Form 14039-B on indox
You get the real form, filled in a browser tab, with nothing standing between you and the finished PDF.
- Fill the form right in your browser, no software to install
- Free to fill and free to download, with no account
- The official blank straight from the IRS, not a copy someone retyped
- Works on a phone, tablet or computer
How to submit it
By mail with an IRS notice
The form says to attach Form 14039-B to the back of the notice and mail it to the address provided on the notice.
By mail without a notice
The form gives this address: Internal Revenue Service, Ogden, UT 84201.
By fax
Use the fax number on the IRS notice or letter, if it shows one. Without a notice, the form gives the toll-free fax number 855-807-5720 and suggests a cover sheet marked 'Confidential'.
In person
Appointments at a Taxpayer Assistance Center are made by calling toll-free 844-545-5640, Monday through Friday, 7 a.m. to 7 p.m., your local time. Bring the form, at least one required document and an original government photo ID with signature.
Avoiding delays
The form says a missing document, an incomplete form or photocopies that are not legible may delay processing.
Scam emails
The form says the IRS does not initiate contact with taxpayers by e-mail and to forward IRS-related scam emails to [email protected].
Related forms
Who fills out Form 14039-B?
Section C asks for the position of the person submitting the form. It says that person needs the legal authority to act for the entity and to receive return information per IRC 6103.
Official sources and the blank
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Questions about Form 14039-B
Who can sign Form 14039-B?
The person named in Section C. The form says that person needs the legal authority to act for the entity and to receive return information per IRC 6103.
What if I am not a business owner but get notices for an EIN in my name?
The form says to check box 1 in Section A, enter the EIN, follow the guidance at www.irs.gov/notmyein and complete Sections C, D and F.
Which documents go with the form?
A sole proprietor sends two: a government issued ID with signature and a document supporting business operation. A corporation, partnership, LLC, exempt organization, estate or trust sends one or more listed entity documents.
Where do I send Form 14039-B?
To the address or fax number on the IRS notice, if you have one. Otherwise the form lists Internal Revenue Service, Ogden, UT 84201, or fax 855-807-5720.
Does the IRS share this with the FTC?
No. The form says the IRS does not share taxpayer information with the Federal Trade Commission, and points to www.identitytheft.gov for FTC resources.
How long does the form take?
The form estimates an average of 15 minutes per response, including reviewing instructions and gathering the data.