IRS Letter 5071C is an identity verification notice. The IRS sends it when a return filed under your Social Security Number needs identity confirmation before processing. Verify online at idverify.irs.gov or call the number on the letter. After successful verification, the IRS states it can take approximately 9 weeks to process the return and issue any refund owed.
- Letter 5071C requires action. An unverified return will not be processed and any refund will be held.
- Two options: verify online at idverify.irs.gov (available 7 days a week) or call the phone number on the letter.
- For online verification, you will need a government-issued photo ID and an email address for the ID.me identity proofing process.
- After successful verification, expect approximately 9 weeks for the IRS to process the return and issue a refund.
- If you did not file the return, do not verify. Use idverify.irs.gov or call the number on the letter to report you did not file. Per IRS guidance, Form 14039 is not required unless the IRS directs you to file it.
- The IRS sends this letter only by U.S. mail. Emails and texts claiming to be from the IRS requesting identity verification are scams.
What Is IRS Letter 5071C?
IRS Letter 5071C is a notice the IRS mails when a tax return filed under your Social Security Number has been flagged for identity verification. The IRS will not process the return until your identity is confirmed.
The letter is part of the IRS identity theft prevention program. Receiving it does not mean you made an error or are suspected of fraud. It means the IRS needs to confirm that you are the person who filed the return before releasing a refund or completing processing.
The letter includes a notice number (5071C), your partial Social Security Number, the tax year in question, and instructions for completing verification. It also includes a response deadline. Respond before that date to avoid delays.
For context on how a 5071C hold affects your refund timeline, see the IRS Refund Processing Stages guide.
Why Did You Receive Letter 5071C?
The IRS uses automated filters to detect potentially fraudulent returns. When a return triggers a flag, the IRS pauses processing and sends a verification letter before proceeding.
The IRS does not disclose which specific factor triggered the letter. Common circumstances that can lead to a 5071C include returns with large refund claims, returns that reflect a significant change from prior years, first-time filers, and returns with discrepancies between reported income and third-party documents such as W-2s or 1099s.
None of these circumstances by themselves indicate fraud or a filing problem. The verification requirement applies to legitimate returns as well as fraudulent ones. Completing the process confirms your return is legitimate and restarts processing.
How to Verify Your Identity Online
Online verification is available seven days a week through the IRS Identity Verification Service.
Step 1: Go to idverify.irs.gov. This URL directs you to the IRS identity verification portal. You will be prompted to create or sign in to your IRS online account. The IRS uses ID.me for account authentication.
Step 2: Complete the ID.me identity proofing process. This requires a government-issued photo ID (such as a driver's license or passport) and access to your email address. You may also be asked to take a selfie for facial recognition matching during the process.
Step 3: Answer questions about your tax return. After identity proofing, the portal will ask questions related to the return in question. Have your Letter 5071C nearby along with the tax return the letter references.
Step 4: Submit and receive confirmation. After you complete verification, the IRS will resume processing. You will receive a confirmation on-screen and, in some cases, a follow-up notice by mail.
Have the following ready before you begin:
- IRS Letter 5071C
- Your Social Security Number and date of birth
- Your filing status and mailing address from the return
- A government-issued photo ID (driver's license, state ID, or passport)
- Access to your email address
- Your prior year tax return, if you filed one
If you encounter problems with the ID.me process, the IRS also offers phone verification as an alternative.
How to Verify Your Identity by Phone
If online verification is not available to you or you prefer to speak with a representative, call the phone number listed on your Letter 5071C. Each 5071C letter includes the correct Taxpayer Protection Program hotline for your case. That number is printed on the letter itself.
Phone lines are available Monday through Friday during IRS business hours. Wait times are longer during peak filing season. Have the following documents ready before calling:
- Your Letter 5071C
- Your current year tax return (the one the letter references)
- Your prior year tax return, if available
- Any supporting documents referenced on the return, such as W-2s or 1099s
The IRS representative will ask questions to confirm your identity and verify that you filed the return. Do not guess at answers. If you do not know a specific figure from the return, tell the representative.
What Happens After Identity Verification?
After successful verification, the IRS will resume processing your return.
Per IRS guidance, expect approximately 9 weeks for the return to be processed and a refund issued after identity verification is complete. This is longer than the standard e-file refund window because the return restarts processing from the verification point.
Where's My Refund will update as processing progresses. After verification, the tool may initially show "Return Received" or reflect a delay before updating. This is normal. The IRS is processing the return; the status will advance when processing milestones are reached.
In some cases, the IRS may request additional documentation after verification. If so, it will send a separate notice by mail. Respond promptly to that notice to avoid further delays.
At LMN Tax Inc, we frequently see clients contact us after completing 5071C verification expecting an immediate refund update. The 9-week window is the IRS standard. Calling before that window closes typically does not accelerate processing and can add to wait times for other callers.
For a full explanation of refund stages after processing restarts, see the IRS Refund Timeline guide.
What If You Did Not File the Return?
If you receive Letter 5071C but did not file a tax return for that year, someone may have filed a fraudulent return using your Social Security Number.
Do not complete online verification for a return you did not file. Instead, go to idverify.irs.gov or call the phone number on the letter and tell the IRS you did not file the return. Per IRS 5071C guidance, Form 14039 (Identity Theft Affidavit) is not required at this stage unless the IRS specifically directs you to complete it. The IRS will flag the fraudulent return and secure your account after you report the non-filing.
After reporting to the IRS, consider these additional protective steps:
- Report to the FTC. File a report at identitytheft.gov. The FTC provides a personalized recovery plan and can assist with credit-related steps.
- Consider a credit freeze. Contact Equifax, Experian, and TransUnion to place a freeze on your credit files. This prevents additional fraudulent accounts from being opened in your name.
- Request an Identity Protection PIN. The IRS IP PIN program assigns you a six-digit PIN required on any future return filed under your SSN. Enroll at IRS.gov to prevent repeat fraudulent filings.
The IRS will notify you by mail at each stage. Continue monitoring IRS correspondence and respond to any additional notices promptly.
For more on how identity-related holds affect your refund, see the IRS "Still Being Processed" guide.
How Letter 5071C Differs from Other IRS Identity Verification Letters
The IRS sends several different identity verification letters depending on the situation. Knowing which letter you have determines the verification options available to you.
| Letter | Verification Method | Key Difference |
|---|---|---|
| 5071C | Online or phone | Most common identity verification letter; online option available at idverify.irs.gov |
| 4883C | Phone only | No online verification option; must call the number on the letter |
| 5747C | In-person | May require a visit to an IRS Taxpayer Assistance Center with identity documents |
| 5447C | Online or phone | Sent when the taxpayer may be outside the United States; some online features may be limited |
If you received a letter other than 5071C, follow the instructions specific to that letter. Do not use the idverify.irs.gov portal for letters that require phone or in-person verification only.
If your refund is delayed due to a separate hold unrelated to identity verification, see the Why Is My Tax Refund Delayed guide for other common causes. Self-employed taxpayers and 1099 recipients may be more likely to receive a 5071C due to income discrepancies. For a full estimate of your self-employment tax liability, see the 1099 Tax Calculator and the Self-Employment Tax Guide.
Is IRS Letter 5071C a Scam?
Legitimate IRS Letter 5071C letters arrive by U.S. mail only. The IRS does not send identity verification requests by email, text message, phone call, or social media.
If you receive an email or text claiming to be from the IRS and asking you to verify your identity or click a link, it is a phishing attempt. Do not click any links or provide personal information.
To confirm a letter is from the IRS, check the following:
- The return address shows the IRS with an Austin, TX; Ogden, UT; Kansas City, MO; or other IRS processing center address
- The letter includes your name, address, and partial Social Security Number
- The notice number in the upper right corner reads 5071C
- The letter references a specific tax year
- The IRS website at IRS.gov confirms the notice number is legitimate
If you are still uncertain, call the IRS directly at 800-829-1040 to confirm whether a 5071C was issued for your account. Do not call any number listed in a suspicious letter or email.
Practitioner Insight
In practice, the 5071C letter is the most urgent piece of IRS correspondence a client can receive during filing season. At LMN Tax Inc, we regularly see clients who set it aside for weeks assuming it is routine correspondence. It is not. Failing to respond within 30 days can result in the IRS closing the return without processing and requiring a manual resubmission. Responding online through idverify.irs.gov is the fastest path. Most identity verifications complete within minutes when done online.
Real-World Scenario
Patricia, single filer, e-filed, TY 2024: Patricia e-filed her 2024 return on February 10, 2025 and expected a $3,100 refund within 21 days. On February 21, her Where's My Refund status switched from "Return Received" to "Still Being Processed." On March 1, a Letter 5071C arrived by mail. The letter explained the IRS needed to verify her identity before processing the return.
Patricia completed the online identity verification at idverify.irs.gov on March 3. She provided her Social Security number, date of birth, filing status, and a copy of her 2024 return. The verification completed successfully in 12 minutes. The letter stated the IRS would contact her if additional information was needed, and that if she did not file the return referenced in the letter, she should report it as potential identity theft using the IRS Form 14039.
After verification, Patricia's Where's My Refund status updated to "Refund Approved" on March 21, 18 days after completing verification. Her deposit arrived March 26. Total time from filing to deposit: 44 days, compared to the standard 15 to 21 days for e-filed returns without a verification hold.
When the 5071C Response Process Does Not Resolve Quickly
- Failing to respond within 30 days: The IRS may close the return without processing if no response is received within the deadline printed on the letter. A closed return must be resubmitted, which restarts the processing clock and may require paper filing.
- Online verification fails due to identity data mismatch: The online tool at idverify.irs.gov uses credit bureau data to verify identity. If your credit file has incorrect information, a thin file, or a freeze, the online verification may fail. In that case, call the number on the letter to complete phone verification or schedule an in-person appointment at an IRS Taxpayer Assistance Center.
- Refund remains on hold after successful verification: After completing verification, processing typically resumes and a refund issues within 9 weeks. If the refund has not appeared 9 weeks after your verification date and no notice has arrived, call 800-829-1040 for a status update.
- Receiving a 5071C for a return you did not file: If you receive a 5071C but did not file a tax return, do not complete the verification. Submit IRS Form 14039 (Identity Theft Affidavit) and contact the IRS Identity Protection Unit. This situation requires a different response from the normal verification path.
- Confused with other identity letters: Letter 4883C requires phone verification only (no online option). Letter 6330C and Letter 5747C have different verification procedures. The response path differs by letter code. Check the letter code before proceeding to ensure you are following the correct instructions for the specific letter received.
Frequently Asked Questions
Next Step
If you received Letter 5071C, respond as soon as possible at idverify.irs.gov or by calling the number printed on the letter. Do not wait for your refund to appear first. Processing resumes after successful verification. For related guidance on the full refund timeline and what status changes to expect after verification completes, see the IRS Refund Processing Stages guide.