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How to Fax IRS Form 14039 Online (Identity Theft Affidavit) | SecurelyFax

Form 14039 is the IRS Identity Theft Affidavit — the form you file when someone has used your Social Security Number to file a tax return in your name, or when the IRS has notified you of suspected identity theft on your account. The IRS lists fax as an accepted submission method in the form's current instructions. Time matters: the faster the IRS has the affidavit, the faster they can flag the account and protect future refunds. SecurelyFax sends the signed Form 14039 from email, browser upload, or a phone scan and returns a delivery confirmation.

When to file Form 14039

File Form 14039 in two main situations. First, when you go to file your own return and the IRS rejects it because a return has already been filed in your name — a clear sign someone used your SSN. Second, when the IRS sends you a letter (Notice CP01, Letter 4883C, 5071C, etc.) saying they detected suspicious activity and need you to verify your identity. The notice will tell you what to do; sometimes that means Form 14039, sometimes it means a phone call to the Identity Protection unit.

Why fax instead of mail

Tax-related identity theft is time-sensitive. Every day the affidavit isn't on file, a fraudulent return could process and trigger a refund to a thief. Mail takes a week or more in transit; fax gets the affidavit onto the IRS record in hours. The delivery confirmation also gives you a documented send timestamp — useful if a fraudulent refund later does need to be reversed and you need to show when you reported the theft.

How to fax Form 14039 through SecurelyFax

  1. 1
    Download the current Form 14039
    Use the latest version from IRS.gov, not an older copy.
  2. 2
    Complete all required fields
    Your information, the identity-theft type (Section A or Section B), and a clear narrative of what happened in Section D.
  3. 3
    Attach a copy of identification
    Form 14039's instructions usually require a copy of a government-issued ID (driver's license, passport).
  4. 4
    If you have a police report or FTC IdentityTheft.gov report, attach a copy
    Not required, but it speeds up the IRS's review and is recommended when available.
  5. 5
    Look up the destination fax number for your situation
    The destination differs depending on whether the IRS has already sent you a notice (use the number on the notice) or whether you're reporting unprompted (use the current general 14039 destination). Pull the current numbers from the latest Form 14039 instructions.
  6. 6
    Send through SecurelyFax
    Email the signed affidavit + attachments, upload in your browser, or photograph the pages with your phone.
  7. 7
    Save the delivery confirmation
    Keep the SecurelyFax receipt — it's evidence you reported the theft when you did, which matters for any later disputed-refund process.

What happens after you submit

The IRS adds an identity-theft indicator to your account, which slows down (and ideally blocks) future fraudulent returns under your SSN. You may receive an Identity Protection PIN (IP PIN) for future filings — a 6-digit code you'll use alongside your SSN on every tax return going forward. Treat the IP PIN like an additional password and keep it confidential.
SecurelyFax is not affiliated with the IRS and cannot file Form 14039 on your behalf. It transmits the signed affidavit to the destination you provide and returns a delivery confirmation. For ongoing identity-theft response, also consider reporting at IdentityTheft.gov and to your state tax authority — Form 14039 only addresses federal IRS implications.

Frequently asked questions

When should I file Form 14039?
Whenever you believe someone used your SSN to file a tax return in your name, or whenever the IRS has notified you they suspect identity theft on your account.
Can I fax Form 14039?
Yes. The current Form 14039 instructions list fax as an accepted submission method.
Which fax number do I use?
If the IRS sent you a notice asking about suspected identity theft, use the fax number on that notice. Otherwise, use the current general 14039 destination from the latest instructions.
Should I attach a police report?
Not required, but recommended when available. The IRS instructions list the supporting documents that strengthen your submission.
Will the IRS give me an Identity Protection PIN?
Eligible taxpayers — including victims who file Form 14039 — can receive an IP PIN. The IRS will follow up with details after processing your affidavit.
Send Form 14039 now
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Last reviewed: 2026-05-30

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