IRS CP5071 Notice: How to Verify Your Identity and Next Steps

An IRS CP5071 notice means the agency has paused your federal tax return because something on it tripped an automated fraud filter, and it will stay paused until you confirm you are the person who filed it.¹ Ignore the letter and your refund stays frozen and your return stays unprocessed indefinitely. Respond and, in most cases, verification takes a single online session.

Why the IRS Sent You This Letter

Every return filed with the IRS runs through automated filters built to catch identity theft before a refund goes out. When a return matches a suspicious pattern, the agency holds the refund and mails a CP5071 series notice asking the taxpayer to prove the return is theirs.¹

Getting one of these letters is not an accusation. The filters cast a wide net and have historically produced high false positive rates, meaning most recipients filed legitimate returns that happened to look unusual to the system.² Filing from a new address, claiming different dependents than in prior years, or reporting income that looks off compared with your history are common triggers.

The CP5071 series comes in three variants: CP5071, 5071C, and CP5071F. All three ask you to verify your identity, but the verification methods available differ by variant. Your specific letter spells out which options apply to you. Follow the instructions on whichever version you actually received.

What to Gather Before You Start

Pull everything together before you begin. Stopping mid-verification to hunt for a document can mean starting over.

The CP5071 notice itself. It contains a control number the verification system will ask for.
The tax return referenced in the notice, including any schedules you filed with it.³
A prior-year return, if you filed one. The IRS cross-references your identity against previous filings.
Supporting income documents: W-2s, 1099s, and any other records behind the figures on your return.¹
A government-issued photo ID for online verification: driver’s license, state ID, passport, or passport card.⁴

The system asks for exact dollar amounts from your return and prior filings. Approximations will not clear you.

How to Verify Your Identity

Your notice lists the verification methods available. Most taxpayers have up to three.

Online

The fastest route is irs.gov/verifyreturn. You sign in through an ID.me account, which requires uploading a government-issued photo ID and taking a video selfie so the system can match your face to the ID.⁴ If you don’t have an IRS online account yet, you create one during the process. Once you’re signed in, you enter the control number from your notice and answer questions drawn from your tax history.³

If the automated selfie match fails because of lighting, an outdated ID photo, or any other reason, ID.me offers a live video call as a fallback. You upload your documents and connect with an agent who reviews them on camera and confirms your details in real time. You can schedule the call for later if the wait is long.⁵

Phone

If online verification isn’t an option, call the toll-free number printed on your notice. An IRS agent walks you through the same identity questions. Have all your documents in front of you before you dial. Wait times from February through April can be long, so plan for it. The number on your notice handles identity verification only. The agent cannot check your refund status or discuss other account issues.¹

In Person

If neither online nor phone verification works, your notice may direct you to a local Taxpayer Assistance Center. Call ahead to schedule an appointment. Walk-ins may face long waits or be turned away.⁶ Bring the notice, a government-issued photo ID, and the same supporting documents you would need for the other methods.

If You Did Not File the Return

If someone filed a return under your Social Security number, you are likely dealing with tax-related identity theft. You still have to respond to the CP5071. During verification, indicate that the return is not yours.¹

After that, you may need to file Form 14039, Identity Theft Affidavit. The IRS will tell you whether it’s required. Form 14039 documents the fraud and starts the process of clearing your tax account. You can submit it online, by fax, or by mail.⁷ If your situation is identity theft that is not tax-related, the IRS points you to the Federal Trade Commission at IdentityTheft.gov instead.

Do not simply ignore the notice because the return isn’t yours. Leaving a fraudulent return in limbo under your Social Security number creates problems when you go to file your own legitimate return.

Spotting a Fake CP5071

Scammers use identity verification letters because urgency is what makes phishing work. A few tests to run before you respond to anything claiming to be a CP5071:

Real notices arrive by mail. The IRS does not open identity verification contact by email, text, or social media. If your first contact came electronically, it’s a scam.
The only legitimate verification URL is irs.gov/verifyreturn. Any link pointing elsewhere is fraudulent.¹
A CP5071 asks you to verify your identity, not to pay money. Any letter threatening arrest or demanding gift cards, wire transfers, or cryptocurrency is fake.
If you’re unsure about a phone number on a letter, look up the IRS identity verification number on irs.gov directly instead of dialing the one printed on the notice.

The same caution applies to unexpected ID.me video call links. Don’t click one unless you started the verification yourself through irs.gov/verifyreturn.⁵

What Happens After You Verify

Once verification clears, the IRS resumes normal processing. Refunds generally take several weeks after that point, and most taxpayers report waits of three to nine weeks depending on whether other issues sit on the return. Math errors, missing forms, or additional flags can push the timeline further.

The “Where’s My Refund?” tool on irs.gov refreshes once every 24 hours, but it may not immediately reflect your verified status.⁸ If the tool still says your return is processing several weeks after you verified, give the full window time to close before calling. Phone agents see the same status information you do.

When Waiting Isn’t an Option

If the delay from verification is causing real financial harm, such as inability to pay rent, utilities about to be cut off, or an eviction on the horizon, the Taxpayer Advocate Service can step in. TAS is an independent organization inside the IRS that helps taxpayers stuck in the system when the consequences are serious.⁹ You don’t need to document the hardship upfront. TAS staff record your situation during intake. The standard “wait nine weeks” advice assumes you can afford to wait; if you can’t, TAS is the way to push a case forward faster.

Avoiding a Repeat Next Year

An Identity Protection PIN is the strongest defense against having to do all of this again. The IP PIN is a six-digit number you enter on your federal return each year, and the IRS rejects any return filed under your Social Security number without it.¹⁰

Anyone with a Social Security number or ITIN can enroll. You do not need to have been a victim of identity theft. The fastest route is through your IRS online account, where the PIN appears in your profile starting in mid-January. The IRS generates a new one each year, and parents can request PINs for their dependents as well.

One catch: if you enroll online, the IRS will not mail the PIN to you. You have to log in each year to retrieve it. Losing access to your online account turns getting a replacement into its own project, so keep your login credentials somewhere secure. A missing or incorrect IP PIN will get your e-filed return rejected or slow a paper return down.¹⁰

1
Internal Revenue Service. Understanding Your CP5071 Series Notice
2
Taxpayer Advocate Service. Fraud Detection Filters
3
Internal Revenue Service. Verify Your Return
4
Internal Revenue Service. Creating an Account for IRS.gov
5
ID.me Help Center. Verifying With an Extended Video Call
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Internal Revenue Service. Contact Your Local IRS Office
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Internal Revenue Service. Form 14039, Identity Theft Affidavit
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Taxpayer Advocate Service. Where’s My Refund?
9
Internal Revenue Service. Taxpayer Advocate Service (TAS) Case Criteria
10
Internal Revenue Service. Get an Identity Protection PIN