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How To Respond to a CP01F Notice

Silas Bamigbola avatar image
Last updated 10/30/2024 by
Silas Bamigbola
Fact checked by
Ante Mazalin
Summary:
The IRS issues the CP01F Notice to confirm that it has verified an identity theft claim and placed an indicator on the taxpayer’s account. This precautionary measure helps the IRS monitor tax returns that use the taxpayer’s Social Security number (SSN) to prevent future fraud. While the notice doesn’t require immediate action, it advises taxpayers to stay vigilant by monitoring financial accounts, credit reports, and tax filings.
Receiving a CP01F Notice from the IRS can be concerning, especially if it involves identity theft. The notice means the IRS has verified a past identity theft claim and added an indicator to your tax account to help detect future fraud. This step adds a layer of protection, allowing the IRS to monitor tax returns filed with your Social Security number. In this article, we’ll explain what the CP01F Notice is, how it affects you, and what you can do to protect yourself.

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What is the CP01F notice?

The IRS issues the CP01F Notice to taxpayers whose identity theft claims have been validated. It confirms that the IRS has added an identity theft indicator to the tax account to prevent unauthorized use of the SSN in tax-related fraud. This indicator acts as a flag and prompts the IRS to check tax returns filed under the flagged SSN.
The notice does not mean ongoing identity fraud is happening. Instead, it serves as a preventive measure based on a previously reported incident. While the notice does not require immediate action, understanding it and taking steps to protect yourself is important.

Pro Tip

Consider enrolling in the IRS Identity Protection PIN (IP PIN) program to add an extra layer of security to your tax account. The IP PIN helps protect against identity theft by providing a unique number required when filing your tax return.

How the CP01F notice protects you

The CP01F Notice helps protect you from tax-related identity theft by letting the IRS monitor your tax account closely. Here’s how it offers protection:
  • Monitoring tax returns: The identity theft indicator signals the IRS to verify any tax returns that use your SSN.
  • Preventing unauthorized refunds: If the IRS detects a fraudulent tax return, it can block an unauthorized person from receiving a refund using your information.
  • Alerting you to suspicious activity: If the IRS suspects identity theft, they will contact you to confirm the tax return’s authenticity before processing it.
This indicator doesn’t affect your ability to file tax returns or receive refunds. Instead, it ensures extra scrutiny for potential fraud.
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Steps to take after receiving a CP01F notice

After receiving a CP01F Notice, follow these steps to protect your financial information and stay alert:
  • Review the notice details: Read the notice to confirm that it matches a previous identity theft case you reported. Understanding the notice will help you take appropriate action if needed.
  • Monitor your credit report: Regularly check your credit report for unauthorized activity or accounts. You can get a free report from each of the three major credit bureaus once a year at AnnualCreditReport.com.
  • Maintain personal information security: Avoid sharing your SSN and store sensitive documents securely. Use strong passwords for your online accounts.
  • File your tax returns early: Filing your return early can help you avoid identity thieves submitting fraudulent returns with your SSN before you do.

Pro Tip

Set up alerts with your bank and credit card companies to notify you of any unusual activity. This can help you catch signs of identity theft early and take action before significant damage occurs.

How to request a copy of a fraudulent tax return

If you’ve been a victim of tax-related identity theft, you can request a redacted copy of the fraudulent tax return filed with your SSN. Here’s how:
  • Contact the IRS: Call the IRS Identity Protection Specialized Unit at 800-908-4490 to request a redacted copy of the fraudulent return.
  • Submit identification documents: The IRS will ask for a copy of your government-issued ID, such as a driver’s license or passport, to verify your identity.
  • Understand redaction: The IRS will black out certain information to protect the filer’s privacy, but you will still see key details about the compromised information.
Getting a copy of the fraudulent return helps you understand what information was misused and take further steps to secure your data.

Protecting your dependents from identity theft

If the CP01F Notice indicates that your dependents’ information was compromised, take these steps to protect their identities:
  • Report identity theft to the FTC: Visit IdentityTheft.gov to file a report and receive recovery guidance. If internet access is not available, call the FTC at 877-438-4338.
  • Monitor your dependents’ credit reports: Even if your children don’t have active credit accounts, check for any suspicious activity using their SSN periodically.
  • Secure personal documents: Store documents with your dependents’ personal information, such as birth certificates, in a safe place to prevent unauthorized access.
These actions help ensure that your family’s information stays protected from identity theft.

Understanding the identity theft indicator and its impact on your tax account

When the IRS places an identity theft indicator on your tax account, here’s what you need to know:

Does the identity theft indicator affect my ability to file taxes?

No, the indicator doesn’t stop you from filing tax returns, making payments, or receiving refunds. It signals the IRS to verify any tax returns filed under your SSN for legitimacy.

How long does the identity theft indicator remain on my account?

The indicator stays on your account indefinitely to provide ongoing protection against identity theft. You can request removal if you’re certain that the risk of identity theft no longer exists.

What if someone tries to use my SSN to file a tax return?

If a tax return uses your SSN, the IRS will verify its authenticity. If the return is fraudulent, the IRS will not process it and may reach out to you for more information.

Pro Tip

File your tax returns as early as possible each year. Early filing helps reduce the risk of identity thieves using your Social Security number to submit fraudulent tax returns before you do.

Additional steps to safeguard your tax account

Here are more precautions to reduce the risk of identity theft affecting your tax account:
  • Enroll in the Identity Protection PIN (IP PIN) program: The IP PIN is a six-digit number issued to eligible taxpayers each year to help prevent fraudulent returns. You can apply for an IP PIN at IRS.gov.
  • Update your contact information with the IRS: Ensure the IRS has your current address, phone number, and email to notify you of suspicious activity.
  • Consider professional monitoring services: Credit and identity monitoring services alert you to potential identity theft across various accounts, including tax records.

What to do if the CP01F notice is incorrect

If you think the CP01F Notice was sent by mistake, contact the IRS Identity Protection Specialized Unit at 800-908-4490 for assistance. Be ready to provide documentation verifying your identity and any relevant information.
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Frequently asked questions

What is the purpose of the CP01F notice?

The CP01F notice informs taxpayers that the IRS verified an identity theft claim and placed an identity theft indicator on their account to monitor tax returns using their SSN and prevent fraud.

Will the CP01F notice affect my tax return processing time?

The identity theft indicator doesn’t typically delay legitimate tax return processing. The IRS may conduct extra verification if suspicious activity is detected.

Can I still receive my tax refund if there is an identity theft indicator on my account?

Yes, you can receive your tax refund. The identity theft indicator doesn’t prevent the IRS from processing legitimate returns or issuing refunds.

How can I remove the identity theft indicator from my account?

The indicator stays on your account indefinitely for ongoing protection. You can request its removal by contacting the IRS Identity Protection Specialized Unit and providing supporting documentation.

What should I do if I suspect new identity theft activity after receiving a CP01F notice?

If you suspect new identity theft activity, contact the IRS Identity Protection Specialized Unit at 800-908-4490 immediately. Review your credit report for unauthorized activity, file a report with the FTC at IdentityTheft.gov, and place a fraud alert on your credit file.
Need help understanding other IRS letters and notices? Visit our comprehensive guide to IRS Letters and Notices or search for the document you received in the table below.
IRS Letter or Notice Number
Notice Description
CP01The IRS verified your claim of identity theft and will monitor your account.
CP01HThe IRS received a tax return with a social security number that belongs to a dead person.
CP02HMoney is due on an amended return based on a grant received due to Hurricane Katrina, Rita, or Wilma.
CP03CYou received the First-Time Homebuyer Credit for a house you purchased.
CP04You may be eligible for tax deferment because either you or a spouse served in a combat zone, a qualified contingency operation, or a hazardous duty station during the tax year specified on your notice.
CP08You may be entitled to additional money due to the Additional Child Tax Credit.
CP10Your tax return changed due to a miscalculation, and the refund you wanted to apply to an estimated tax payment has changed.
CP10AYour tax return changed due to a miscalculation of the Earned Income Credit, and the refund you wanted to apply to an estimated tax payment has changed.
CP11You owe money because the IRS amended your return due to a miscalculation.
CP11AYour tax return changed due to a miscalculation of the Earned Income Credit, and the refund you wanted to apply to an estimated tax payment also changed.
CP11MYour tax return changed due to a miscalculation of the Making Work Pay and Government Retiree Credit, and the refund you wanted to apply to an estimated tax payment has changed.
CP12You are due a bigger refund because the IRS corrected one or more mistakes on your tax return.
CP12AThe IRS made changes to correct the Earned Income Credit (EIC) claimed on your tax return.
CP12E or CP12FThe IRS corrected a miscalculation on your return.
CP12MThe IRS made changes to the computation of the Making Work Pay and/or Government Retiree Credits on your return.
CP12RThe IRS made changes to the computation of the Rebate Recovery Credit on your return.
CP13The IRS made changes to your return due to a miscalculation. There is no refund or amount due. Your balance is zero.
CP13AThe IRS made changes to your return due to a miscalculation of the Earned Income Credit. There is no refund or amount due. Your balance is zero.
CP13MThe IRS made changes to your return due to a miscalculation of the Making Work Pay credit or the Government Retiree Credit. There is no refund or amount due. Your balance is zero.
CP13RThe IRS made changes to your return due to a miscalculation of the Recovery Rebate Credit. There is no refund or amount due. Your balance is zero.
CP14You owe money on unpaid taxes.
CP16The IRS made changes to your return due to a miscalculation. The refund you were due was applied to other tax debts.
CP21AYou owe money due to the changes you requested that the IRS make on your tax returns.
CP21BYou are due a refund due to the changes you requested that the IRS make on your tax returns. The money should arrive within 2 to 3 weeks.
CP21CThe IRS made the requested changes to your tax return. You will not receive a refund, and there is no tax due. Your balance is zero.
CP21EAs a result of your recent audit, the IRS made changes to your tax return, and you owe money as a result of those changes.
CP21IThe IRS made changes to your tax return relating to the Individual Retirement Arrangement (IRA) taxes. You owe money due to the changes.
CP22AThe IRS made the changes you requested, and you owe money as a result.
CP22EAs a result of your recent audit, the IRS changed your tax return, and you now owe money.
CP22IThe IRS made changes to your tax return relating to the Individual Retirement Arrangement (IRA) taxes. You owe money due to the changes.
CP23The IRS changed your return because there was a difference between the amount of estimated tax payments listed on your tax return and the amount actually posted to your account. You owe taxes due to these changes.
CP24The IRS changed your return because there was a difference between the amount of estimated tax payments listed on your tax return and the amount actually posted to your account. This resulted in an overpayment of estimated taxes.
CP24EThe IRS changed your return because there was a difference between the amount of estimated tax payments listed on your tax return and the amount actually posted to your account. This resulted in an overpayment of estimated taxes.
CP25The IRS changed your return because there was a difference between the amount of estimated tax payments listed on your tax return and the amount actually posted to your account. You are not due a refund, nor do you owe any money. Your balance is zero.
CP31You need to update your address because your refund check was returned to the IRS.
CP45The IRS was unable to apply your overpayment to your estimated tax as you requested.
CP49The IRS used all or part of your refund to pay a tax debt.
CP53Your refund check will be sent by mail because the IRS can’t provide your refund through direct deposit.
CP57The bank declined your payment, so the IRS was unable to draft funds from your bank account.
CP71A reminder of the amount you owe in tax, penalty, and interest.
CP71AA reminder of the amount you owe in tax, penalty, and interest.
CP71CA reminder of the amount you owe in tax, penalty, and interest.
CP71DA reminder of the amount you owe in tax, penalty, and interest.
CP88The IRS is holding your refund because you haven't filed one or more tax returns, and it believes you will owe tax.
CP90The IRS is notifying you of its intent to levy certain assets for unpaid taxes. You have the right to dispute the levy in a Collection Due Process hearing.
CP91The IRS will levy up to 15% of your social security benefits for unpaid taxes.
CP120The IRS needs documentation of your tax-exempt status.
CP120AYour organization’s tax-exempt status has been revoked because it failed to file a Form 990 series return for three consecutive years.
CP130You may no longer need to pay the Alternative Minimum Tax (AMT) because your tax return filing requirements changed.
CP152The IRS received your return.
CP153The IRS will send your refund by mail because your direct deposit did not go through.
CP161You have an unpaid balance due to the IRS.
CP166Your monthly payment to the IRS did not go through due to insufficient funds in your bank account.
CP178You may no longer owe excise tax because your tax return filing requirements changed.
CP231You need to update your address because your refund was returned to the IRS.
CP259You did not file the business tax return identified in the notice.
CP259AYou should have filed these forms but did not – Form 990/990-EZ, Return of Organization Exempt From Income Tax, or Form 990-N (e-Postcard).
CP259BThe IRS requires you to file these forms but did not – Form 990-PF, Return of Private Foundation or Section 4947(a)(1) Nonexempt Charitable Trust Treated as a Private Foundation.
CP259CThe IRS believes that you are a private foundation, but did not file the required Form 990-PF, Return of Private Foundation or Section 4947(a)(1) Nonexempt Charitable Trust Treated as a Private Foundation.
CP259DYou must file this form, but you did not – Form 990-T, Exempt Organization Business Income Tax Return.
CP259EYou should have filed this form, but you did not – Form 990-N (e-Postcard) or Form 990/990-EZ, Return of Organization Exempt From Income Tax.
CP259FThe IRS requires you to file this form but did not – Form 5227, Split-Interest Trust Information Return.
CP259GThe IRS requires you to file this form, but you didn’t – Form 1120-POL, U.S. Income Tax Return for Certain Political Organizations.
CP259HAs a tax-exempt political organization, you must file this form, but you did not – Form 990/990-EZ, Return of Organization Exempt From Income Tax.
CP276AYou submitted your tax liability schedule incorrectly. The IRS typically charges a Federal Tax Deposit (FTD) penalty for this but did not this time.
CP276BThe IRS did not receive the correct amount of tax deposits. It normally charges a Federal Tax Deposit (FTD) penalty but did not this time.
CP297The IRS is notifying you of its intent to levy certain assets for unpaid taxes. You have the right to dispute the levy at a Collection Due Process hearing.
CP297AThe IRS has levied your assets for unpaid taxes. You have the right to dispute the levy at a Collection Due Process hearing.
CP298The IRS notifying you of its intent to levy up to 15% of your social security benefits for unpaid taxes.
CP501You have a balance due on one of your tax accounts.
CP503You have an unpaid balance on one of your accounts, and the IRS has not heard from you.
CP504You have an unpaid amount due on your account. If you do not pay immediately, the IRS will levy your state income tax refund to apply it to the amount you owe.
CP504BYou have an unpaid amount due on your account. If you do not pay immediately, the IRS will levy certain property or rights to property to apply it to the amount you owe.
CP521A reminder that you have an installment agreement payment due.
CP523You have defaulted on your payment agreement. Therefore the IRS is terminating the agreement and will levy your assets.
CP601Usted tiene un saldo pendiente de pago (dinero que le debe al IRS) en una de sus cuentas contributivas.
CP603No hemos recibido respuesta de parte de usted y todavía tiene un saldo sin pagar en una de sus cuentas contributivas.
CP604Usted tiene un saldo sin pagar en su cuenta. De no pagar esta cantidad inmediatemente, el IRS embargará cualquier reembolso de impuestos estatales al que tenga derecho y aplicarlo al pago de su deuda.
CP604BUsted tiene un saldo sin pagar en su cuenta. De no pagar esta cantidad inmediatemente, el IRS embargará ciertas propiedades o derechos de propiedad y lo aplicará al pago de su deuda.
CP621Este aviso es para notificarle que usted tiene un plan de pagos a plazos vencido. Por favor, envíe el pago inmediatamente.
CP623Este aviso es para informarle nuestra intención de cancelar su plan de pagos a plazos y confiscar (embargar) sus bienes. Usted incumplió en su acuerdo.
CP711Nosotros realizamos cambios a su planilla debido a que entendemos que hubo un cálculo erróneo. Como resultado de estos cambios, usted adeuda dinero por sus contribuciones.
CP721Hicimos el(los) cambio(s) que usted solicitó a su declaración de impuestos para el año tributario que aparece en su aviso. Como resultado de éste(estos) cambio(s) usted debe dinero en sus impuestos.
CP722Hicimos el(los) cambio(s) que usted solicitó a su declaración de impuestos para el año tributario que aparece en su aviso. Como resultado de éste(estos) cambio(s) usted debe dinero en sus impuestos.
CP771Usted recibió este aviso para recordarle sobre la cantidad que adeuda en contribuciones, multas e intereses.
CP772Usted recibió este aviso para recordarle sobre la cantidad que adeuda en contribuciones, multas e intereses.
CP773Usted recibió este aviso para recordarle sobre la cantidad que adeuda en contribuciones, multas e intereses.
CP774Usted recibió este aviso para recordarle sobre la cantidad que adeuda en contribuciones, multas e intereses.
CP959Usted no radicó su planilla de contribución de negocios identificada en este aviso.
CP2000The income or payment information on file doesn’t match your tax return. The discrepancy may result in an increase or decrease in your tax due.
CP3219AThe IRS has received information that is different from what you reported on your tax return. This may result in an increase or decrease in your tax.
CP3219NThe IRS didn’t receive your tax return, so it calculated your return based on the information received from employers, financial institutions, and others. If you want to challenge the proposed tax, you have 90 days from the date of this notice. If you are outside the country, you have 150 days.
Letter 0012CThe IRS needs additional information to process your tax return.
Letter 0484CThe IRS wants a completed
Letter 0525Updates you on proposed changes after an IRS examination. Any changes are explained and details the refund due or taxes owed.
Letter 531IRS Notice of Deficiency. The information the IRS received about you was different from what you reported on your return.
Letter 0668D(LP 68)The IRS released their levy.
Letter 0549CYour tax bill was paid.
Letter 0681CThe IRS accepted your payment proposal. However, this is not a formal Installment Agreement.
Letter 0757CYou did not adhere to the terms of your Installment Agreement.
Letter LT 11The IRS plans to seize your property or rights to property.
Letter 1058The IRS has not received your payment. It plans to seize your property or rights to property.
Letter 1615 (LT 18)You must respond to the IRS within 10 days of this notice regarding past due tax returns.
Letter 1737 (LT 27)Complete and sign Form 433F, Collection Information Statement.
Letter 1961CYour application for a Direct Debit Installment Agreement was declined. It explains why and what you need to do to qualify.
Letter 1962CYour application for a
Letter 2050 (LT 16)The IRS is trying to collect unpaid taxes from you from returns that have been filed or from returns that have not been filed.
Letter 2257CThe IRS is providing the payoff amount that you requested.
Letter 226-JAn IRS letter to large employers notifying them that they may be liable for an Employer Shared Responsibility Payment (ESRP).
Letter 2271CA request for an Installment Agreement has been approved. It explains the fees and how to qualify for a Low Income Fee Reduction. The letter may also request missing information.
Letter 2272CAn IRS letter explaining why your request to pay the balance due in installments was declined.
Letter 2273CA confirmation letter of your request to pay the balance due in installments. It contained the amount to pay, fees charged, and where to send payment. Instructions on how to apply for the Low Income Fee Reduction included.
Letter 2318CA response to a request to pay taxes due to payroll deductions. It also explains the fees that are charged.
Letter 2357CThe IRS is admitting that it did not send you the balance due notices that it should have.
Letter 2603CThe IRS accepted your installment agreement. The IRS will file a Notice of Federal Tax Lien on your personal property.
Letter 2604CThe IRS has accepted your request for installment payments. This IRS letter provides the monthly payment, the address where to send it, and the fees charged. The letter also provides instructions on how to apply for the Low Income Fee Reduction.
Letter 2761CThe IRS is requesting your combat zone service dates to ensure that it provides you with the special provisions and protection of the combat zone deferment. Copies of military orders or other documentation to support your time served may be requested. Civilians working in support of the Armed Forces may be required to provide a Letter of Authorization or a letter from their employer.
Letter 2789CAn annual reminder notice, as required by law, of the balance due to the IRS. It explains that penalties and interest continue to accrue until the balance is fully paid.
Letter 2840CConfirms your Installment Agreement request and includes the payment amount and due date. This IRS letter explains the fees charged for paying monthly and explains how to apply for the Low Income Fee Reduction (if you qualify).
Letter 3030CProvides an explanation of the tax, penalty, and interest still due on your account.
Letter 3127CA confirmation of your request to make a change to your Installment Agreement. This IRS letter explains the fees for the change. Changes can be to the payment amount or due date, or it can include additional liabilities.
Letter 3174A reminder of taxes due after the IRS has sent a Notice of Intent to Levy.
Letter 3217CThe IRS has accepted your request to pay the balance in installments. This IRS letter provides your payment amount, the due date, and fees charged. The letter also provides instructions on applying for the Low Income Fee Reduction (if you qualify).
Letter 3228 (LT 39)A request to pay the balance due within 10 days using the envelope provided.
Letter 3500The IRS has received your documents, and it needs additional time to review them.
Letter 3572Your Federal Income Tax Return has been selected for examination. The IRS auditor requests that you call to schedule an audit appointment.
Letter 4883CThe IRS received your federal income tax return but needs more information to verify your identity in order to process your tax return accurately.
Letter 4903 (LT 26)You must file your tax returns immediately. The IRS has previously contacted you, but it did not receive a response.
Letter LP 47The IRS is trying to locate the person identified in the letter and is requesting that you provide their new address.
Letter LP 59The IRS has not received a response to the notice of levy it previously sent.
Audit Letter 2205The IRS manages audits either by mail or through an in-person interview to review your records. The interview may be at an IRS office (office audit) or the taxpayer’s home, place of business, or accountant’s office (field audit).
Letter 915You recently underwent an audit, and the IRS informs you that you now owe taxes.

Key takeaways

  • The CP01F Notice appears after the IRS verifies an identity theft claim, with an indicator placed on your account to prevent future fraud.
  • The notice does not affect your ability to file tax returns, but the IRS will verify the authenticity of returns filed under your SSN.
  • Monitor your credit report and secure your personal information to reduce the risk of further identity theft.
  • You may request a redacted copy of a fraudulent return filed under your SSN to see what information was compromised.

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