IRS Form 14039 fax number (identity theft affidavit)
Where to fax Form 14039, Identity Theft Affidavit, to the IRS.
Verified October 21, 2026Checked against Form 14039 (February 2026), Identity Theft Affidavit, Instructions for Submitting this Form.
| Who uses it | Office | Fax |
|---|---|---|
| Everyone who is not answering an IRS notice or letter (Section A, Box 2) | IRS identity theft affidavit fax (toll-free) | 855-807-5720 |
Before you fax
- If you checked Box 2 in Section A because you are answering an IRS notice or letter, use the fax number on that notice or letter; if it shows none, follow its mailing instructions.
- Always include a cover sheet marked "Confidential".
- Choose one way to send the form: online, by mail or by fax, not all of them.
- Do not use this fax number to file an original tax return.
- Submit Form 14039 onlineThe IRS calls online submission the preferred method. Attachments are not available online.