Submit an individual Identity Theft Affidavit when no IRS notice provides a different fax route

Use the number only for the documented purpose and routing rule below.

Just One Fax is not affiliated with Internal Revenue Service.

This listing does not guarantee delivery, processing, acceptance, or deadline treatment. Recheck the official instructions before sending.

Route decision

Is this the right fax route?

Match all three checks before using the number.

01 Purpose: Submit an individual Identity Theft Affidavit when no IRS notice provides a different fax route
02 Region or eligibility: Individuals submitting Form 14039 who are not required to use a fax or mailing address printed on an IRS notice and are not attaching the affidavit to a paper tax return after an identity-theft e-file rejection.
03 Required form or document: Completed Form 14039, Identity Theft Affidavit, with clear copies of any additional information included.

Submission notes

What to put on the route.

Routing instructions

Choose one submission method only and include a cover sheet marked “Confidential” when faxing. If an IRS notice or letter provides a fax number, use the number in that notice instead.

Official source and check date

Recheck the route before sending.

Recipient: Internal Revenue Service
Fax: 855-807-5720
Last checked: August 25, 2026
Source: Form 14039, Identity Theft Affidavit (Rev. February 2026)

As of August 25, 2026, the linked Internal Revenue Service source listed this number for the purpose shown. Just One Fax is not affiliated with or endorsed by Internal Revenue Service.

Before transmission

Questions to answer before sending.

What is the Internal Revenue Service fax number for this purpose?

855-807-5720 is the fax number published in the cited official source for this specific purpose: Submit an individual Identity Theft Affidavit when no IRS notice provides a different fax route. Recheck the source immediately before sending.

How do I know whether this is the right regional route?

Individuals submitting Form 14039 who are not required to use a fax or mailing address printed on an IRS notice and are not attaching the affidavit to a paper tax return after an identity-theft e-file rejection.

What should I send to this fax number?

Completed Form 14039, Identity Theft Affidavit, with clear copies of any additional information included. Choose one submission method only and include a cover sheet marked “Confidential” when faxing. If an IRS notice or letter provides a fax number, use the number in that notice instead.

Does this listing guarantee acceptance?

No. The linked source listed this route on August 25, 2026, but only the recipient can determine delivery, eligibility, processing, acceptance, or deadline treatment.

Number prefilled, decision still yours

Prepare one careful fax.

Open the send flow with 855-807-5720 prefilled. Compare it with the official source again before checkout.

Send to 855-807-5720