What Form 14039-B does
Form 14039-B reports suspected identity theft involving a business, estate, trust, or exempt organization. It also has a separate option for someone who did not request an EIN but receives IRS notices about an unknown business in their name.
Check the form before faxing
- Choose the correct box in Section A. The form identifies different sections to complete for an unknown EIN and for an affected business or other entity.
- Sign Section F. If reporting theft involving an entity, review Section E for the supporting identity and business documents required for that entity type.
- If the IRS sent a notice, read its response instructions before entering any fax number.
Where to fax Form 14039-B
When an IRS notice or letter about this issue provides a fax number, use that number. If it does not show a fax number, follow the mailing instructions on the notice or letter.
If you did not receive a notice or letter about this issue, the IRS form lists the general fax number below. It suggests a cover sheet marked “Confidential.”
No IRS notice or letter: 855-807-5720
Only for a Form 14039-B submission when you received no notice or letter related to the issue.
Use this number after checking the IRS pageSend your completed form
Upload your completed PDF or scan, enter the IRS fax number you confirmed, then review the prepared pages and price before payment. Standard web faxing starts at $3.50 for 1–10 pages, with no account or subscription. You are charged only after successful fax delivery.
Send Form 14039-BOneFaxNow sends outbound faxes only. It does not prepare the IRS form or confirm IRS acceptance.
After the fax is delivered
Save the completed form, copies of required supporting documents, and delivery confirmation. The IRS will review the report separately; delivery is not confirmation that the account has been corrected.
Questions about Form 14039-B
Is Form 14039-B for an EIN I did not request?
Yes. Section A includes an option for a person who is not a business owner but receives IRS notices about an unknown business and EIN in their name.
Can I use the general number if my notice has no fax number?
No. For a notice about this issue without a fax number, the form directs you to follow the notice’s mailing instructions.