CP12 Notice: What Is It and How Should You Respond?
Summary:
The IRS sends a CP12 Notice when it corrects a miscalculation on your tax return. This notice informs you that the IRS has adjusted your refund or overpayment amount. If you agree with the changes, no response is necessary, and you should receive your updated refund within 4-6 weeks. If you disagree, you must contact the IRS within 60 days of receiving the notice.
When the IRS sends a CP12 Notice, it signals that a miscalculation was identified on your tax return, prompting the agency to make corrections. This adjustment could lead to a different refund amount than you expected, or even an overpayment when you thought you had a balance due. While the notice might initially cause concern, understanding its purpose and knowing how to respond can help alleviate any confusion and ensure that your tax situation is handled correctly.
What is a CP12 Notice?
The IRS issues a CP12 Notice when it identifies mistakes on your tax return that require correction. These errors could stem from a variety of factors, including miscalculations, inaccurate income reporting, or the failure to claim a credit or deduction. After adjusting the necessary figures, the IRS sends the CP12 Notice to inform you of the changes made.
The notice outlines the discrepancies and provides you with a revised tax refund amount. In some cases, it may also notify you of an overpayment when you initially believed you owed money. If the IRS adjustments affect your refund, the notice will specify the new amount you should expect to receive.
Pro Tip
Double-check your tax documents before filing, especially for common errors like incorrect Social Security numbers or missed deductions. This can prevent a CP12 Notice from being issued in the first place.
What does the CP12 Notice mean for you?
When you receive a CP12 Notice, it means the IRS has reviewed your tax return and corrected errors that impacted the amount you owe or the refund you expected. If you initially anticipated receiving a refund, this notice lets you know that the amount has changed. If you believed you owed money or had a zero balance, the IRS might have determined that you actually overpaid, and you are now eligible for a refund.
Although receiving this notice can be surprising, it’s crucial to carefully review the details. The IRS will provide a clear breakdown of the changes made, enabling you to compare the corrected figures with your original filing. If you agree with the IRS’s adjustments, no further action is required.
Reasons for receiving a CP12 Notice
The IRS sends a CP12 Notice when it detects one or more errors on your income tax return. Common reasons include:
- Miscalculations related to income, deductions, or credits.
- Missing or incorrect details regarding tax credits, such as the Earned Income Tax Credit (EITC).
- Discrepancies in reported taxable income or filing status.
- Incorrect Social Security numbers or other identifying information.
These errors usually occur due to unintentional mistakes, such as math errors or entering incorrect information when reporting income. The IRS automatically fixes these mistakes and sends a CP12 Notice to inform you of the changes.
Pro Tip
Set up direct deposit with the IRS to speed up the refund process after receiving a CP12 Notice, ensuring faster receipt of any adjusted refund amounts.
How to handle a CP12 Notice
When you get a CP12 Notice, the first step is to review it carefully. The notice will explain the changes made to your return and provide a comparison between your original filing and the corrected amounts.
Here’s what you should do:
- If you agree with the changes: No further action is required. Keep the notice for your records, and you should receive your updated refund within 4-6 weeks. Update your own copy of the tax return to reflect the corrections.
- If you disagree with the changes: Contact the IRS within 60 days of receiving the notice. You can call the IRS directly (the number is listed on the notice) or respond by mail, including a copy of the notice and supporting documents to dispute the adjustments.
It’s essential to act promptly if you disagree, as the IRS gives you a limited window to contest the corrections. If you fail to respond within 60 days, the changes will be considered final.
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Pro Tip
If you receive a CP12 Notice and are unsure of the IRS changes, consult a certified tax professional to review your return and provide guidance on the best course of action.
Steps to respond if you disagree with the notice
If you think the IRS made an error with the adjustments, follow these steps to contest the CP12 Notice:
- Review the notice to pinpoint the specific changes made by the IRS.
- Collect supporting documentation that proves your original tax return was accurate. This may include W-2s, 1099s, or receipts for deductions.
- Call the IRS using the number provided on the CP12 Notice. Speaking with an IRS representative is often the quickest way to resolve the issue. Be prepared to explain why you disagree with the changes and provide documentation to support your claim.
- If calling doesn’t resolve the issue, submit a formal dispute in writing. Include a copy of the CP12 Notice, a letter detailing your disagreement with the IRS’s changes, and any supporting documentation. Mail this information to the address listed on the notice.
Once you’ve submitted your dispute, it may take 30-60 days for the IRS to review your case and respond.
What happens if you ignore the CP12 Notice?
Ignoring a CP12 Notice can lead to complications with your taxes. Here’s what might happen:
- Your tax return will remain as corrected by the IRS, even if their calculations contained an error.
- Your refund adjustment will stand, which could result in receiving a smaller refund or missing an overpayment correction.
- If you disagree with the corrections but fail to respond within 60 days, you forfeit your right to contest the changes, and the IRS will consider the matter closed.
It’s always best to address the notice promptly to avoid unnecessary issues.
How long the CP12 Notice resolution typically takes
The length of time required to resolve a CP12 Notice largely depends on whether you agree or disagree with the changes made by the IRS:
- If you agree: No further action is necessary. You can expect to receive your adjusted refund within 4-6 weeks.
- If you disagree: You should allow 30-60 days for the IRS to review your dispute and issue a resolution. This timeframe may be extended if additional documentation or clarification is required.
It is important to keep in mind that response times may be slower during tax season, as the IRS handles a higher volume of returns and inquiries.
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Frequently asked questions
What should I do if I agree with the changes on the CP12 Notice?
If you agree with the adjustments made by the IRS, no further steps are needed. You can simply wait for your refund to be processed, which typically takes 4-6 weeks, or for your overpayment to be handled.
What should I do if I disagree with the notice?
If you do not agree with the notice, you must contact the IRS within 60 days. You can either call the number provided on the notice or submit a written dispute, along with any supporting documents, to the IRS.
How long will it take to receive my refund after getting a CP12 Notice?
Once you agree with the IRS’s changes, you should receive your adjusted refund within 4-6 weeks. However, if you choose to dispute the notice, the resolution process could take 30-60 days or even longer, depending on the complexity of the case.
Can I appeal the changes if I miss the 60-day deadline?
If you miss the 60-day deadline, the IRS will finalize the adjustments, and you may lose your opportunity to contest them. However, you might still be able to file an amended return to correct any errors on your tax return.
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.
| CP01 | The IRS verified your claim of identity theft and will monitor your account. |
| CP01H | The IRS received a tax return with a social security number that belongs to a dead person. |
| CP02H | Money is due on an amended return based on a grant received due to Hurricane Katrina, Rita, or Wilma. |
| CP03C | You received the First-Time Homebuyer Credit for a house you purchased. |
| CP04 | You 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. |
| CP08 | You may be entitled to additional money due to the Additional Child Tax Credit. |
| CP10 | Your tax return changed due to a miscalculation, and the refund you wanted to apply to an estimated tax payment has changed. |
| CP10A | Your 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. |
| CP11 | You owe money because the IRS amended your return due to a miscalculation. |
| CP11A | Your 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. |
| CP11M | Your 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. |
| CP12 | You are due a bigger refund because the IRS corrected one or more mistakes on your tax return. |
| CP12A | The IRS made changes to correct the Earned Income Credit (EIC) claimed on your tax return. |
| CP12E or CP12F | The IRS corrected a miscalculation on your return. |
| CP12M | The IRS made changes to the computation of the Making Work Pay and/or Government Retiree Credits on your return. |
| CP12R | The IRS made changes to the computation of the Rebate Recovery Credit on your return. |
| CP13 | The IRS made changes to your return due to a miscalculation. There is no refund or amount due. Your balance is zero. |
| CP13A | The 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. |
| CP13M | The 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. |
| CP13R | The 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. |
| CP14 | You owe money on unpaid taxes. |
| CP16 | The IRS made changes to your return due to a miscalculation. The refund you were due was applied to other tax debts. |
| CP21A | You owe money due to the changes you requested that the IRS make on your tax returns. |
| CP21B | You 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. |
| CP21C | The 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. |
| CP21E | As a result of your recent audit, the IRS made changes to your tax return, and you owe money as a result of those changes. |
| CP21I | The IRS made changes to your tax return relating to the Individual Retirement Arrangement (IRA) taxes. You owe money due to the changes. |
| CP22A | The IRS made the changes you requested, and you owe money as a result. |
| CP22E | As a result of your recent audit, the IRS changed your tax return, and you now owe money. |
| CP22I | The IRS made changes to your tax return relating to the Individual Retirement Arrangement (IRA) taxes. You owe money due to the changes. |
| CP23 | The 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. |
| CP24 | The 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. |
| CP24E | The 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. |
| CP25 | The 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. |
| CP31 | You need to update your address because your refund check was returned to the IRS. |
| CP45 | The IRS was unable to apply your overpayment to your estimated tax as you requested. |
| CP49 | The IRS used all or part of your refund to pay a tax debt. |
| CP53 | Your refund check will be sent by mail because the IRS can’t provide your refund through direct deposit. |
| CP57 | The bank declined your payment, so the IRS was unable to draft funds from your bank account. |
| CP71 | A reminder of the amount you owe in tax, penalty, and interest. |
| CP71A | A reminder of the amount you owe in tax, penalty, and interest. |
| CP71C | A reminder of the amount you owe in tax, penalty, and interest. |
| CP71D | A reminder of the amount you owe in tax, penalty, and interest. |
| CP88 | The IRS is holding your refund because you haven't filed one or more tax returns, and it believes you will owe tax. |
| CP90 | The 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. |
| CP91 | The IRS will levy up to 15% of your social security benefits for unpaid taxes. |
| CP120 | The IRS needs documentation of your tax-exempt status. |
| CP120A | Your organization’s tax-exempt status has been revoked because it failed to file a Form 990 series return for three consecutive years. |
| CP130 | You may no longer need to pay the Alternative Minimum Tax (AMT) because your tax return filing requirements changed. |
| CP152 | The IRS received your return. |
| CP153 | The IRS will send your refund by mail because your direct deposit did not go through. |
| CP161 | You have an unpaid balance due to the IRS. |
| CP166 | Your monthly payment to the IRS did not go through due to insufficient funds in your bank account. |
| CP178 | You may no longer owe excise tax because your tax return filing requirements changed. |
| CP231 | You need to update your address because your refund was returned to the IRS. |
| CP259 | You did not file the business tax return identified in the notice. |
| CP259A | You 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). |
| CP259B | The 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. |
| CP259C | The 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. |
| CP259D | You must file this form, but you did not – Form 990-T, Exempt Organization Business Income Tax Return. |
| CP259E | You 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. |
| CP259F | The IRS requires you to file this form but did not – Form 5227, Split-Interest Trust Information Return. |
| CP259G | The IRS requires you to file this form, but you didn’t – Form 1120-POL, U.S. Income Tax Return for Certain Political Organizations. |
| CP259H | As 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. |
| CP276A | You submitted your tax liability schedule incorrectly. The IRS typically charges a Federal Tax Deposit (FTD) penalty for this but did not this time. |
| CP276B | The IRS did not receive the correct amount of tax deposits. It normally charges a Federal Tax Deposit (FTD) penalty but did not this time. |
| CP297 | The 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. |
| CP297A | The IRS has levied your assets for unpaid taxes. You have the right to dispute the levy at a Collection Due Process hearing. |
| CP298 | The IRS notifying you of its intent to levy up to 15% of your social security benefits for unpaid taxes. |
| CP501 | You have a balance due on one of your tax accounts. |
| CP503 | You have an unpaid balance on one of your accounts, and the IRS has not heard from you. |
| CP504 | You 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. |
| CP504B | You 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. |
| CP521 | A reminder that you have an installment agreement payment due. |
| CP523 | You have defaulted on your payment agreement. Therefore the IRS is terminating the agreement and will levy your assets. |
| CP601 | Usted tiene un saldo pendiente de pago (dinero que le debe al IRS) en una de sus cuentas contributivas. |
| CP603 | No hemos recibido respuesta de parte de usted y todavía tiene un saldo sin pagar en una de sus cuentas contributivas. |
| CP604 | Usted 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. |
| CP604B | Usted 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. |
| CP621 | Este aviso es para notificarle que usted tiene un plan de pagos a plazos vencido. Por favor, envíe el pago inmediatamente. |
| CP623 | Este aviso es para informarle nuestra intención de cancelar su plan de pagos a plazos y confiscar (embargar) sus bienes. Usted incumplió en su acuerdo. |
| CP711 | Nosotros 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. |
| CP721 | Hicimos 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. |
| CP722 | Hicimos 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. |
| CP771 | Usted recibió este aviso para recordarle sobre la cantidad que adeuda en contribuciones, multas e intereses. |
| CP772 | Usted recibió este aviso para recordarle sobre la cantidad que adeuda en contribuciones, multas e intereses. |
| CP773 | Usted recibió este aviso para recordarle sobre la cantidad que adeuda en contribuciones, multas e intereses. |
| CP774 | Usted recibió este aviso para recordarle sobre la cantidad que adeuda en contribuciones, multas e intereses. |
| CP959 | Usted no radicó su planilla de contribución de negocios identificada en este aviso. |
| CP2000 | The 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. |
| CP3219A | The 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. |
| CP3219N | The 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 0012C | The IRS needs additional information to process your tax return. |
| Letter 0484C | The IRS wants a completed |
| Letter 0525 | Updates you on proposed changes after an IRS examination. Any changes are explained and details the refund due or taxes owed. |
| Letter 531 | IRS 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 0549C | Your tax bill was paid. |
| Letter 0681C | The IRS accepted your payment proposal. However, this is not a formal Installment Agreement. |
| Letter 0757C | You did not adhere to the terms of your Installment Agreement. |
| Letter LT 11 | The IRS plans to seize your property or rights to property. |
| Letter 1058 | The 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 1961C | Your application for a Direct Debit Installment Agreement was declined. It explains why and what you need to do to qualify. |
| Letter 1962C | Your 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 2257C | The IRS is providing the payoff amount that you requested. |
| Letter 226-J | An IRS letter to large employers notifying them that they may be liable for an Employer Shared Responsibility Payment (ESRP). |
| Letter 2271C | A 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 2272C | An IRS letter explaining why your request to pay the balance due in installments was declined. |
| Letter 2273C | A 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 2318C | A response to a request to pay taxes due to payroll deductions. It also explains the fees that are charged. |
| Letter 2357C | The IRS is admitting that it did not send you the balance due notices that it should have. |
| Letter 2603C | The IRS accepted your installment agreement. The IRS will file a Notice of Federal Tax Lien on your personal property. |
| Letter 2604C | The 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 2761C | The 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 2789C | An 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 2840C | Confirms 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 3030C | Provides an explanation of the tax, penalty, and interest still due on your account. |
| Letter 3127C | A 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 3174 | A reminder of taxes due after the IRS has sent a Notice of Intent to Levy. |
| Letter 3217C | The 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 3500 | The IRS has received your documents, and it needs additional time to review them. |
| Letter 3572 | Your Federal Income Tax Return has been selected for examination. The IRS auditor requests that you call to schedule an audit appointment. |
| Letter 4883C | The 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 47 | The IRS is trying to locate the person identified in the letter and is requesting that you provide their new address. |
| Letter LP 59 | The IRS has not received a response to the notice of levy it previously sent. |
| Audit Letter 2205 | The 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 915 | You recently underwent an audit, and the IRS informs you that you now owe taxes. |
Key takeaways
- A CP12 Notice is issued when the IRS corrects a miscalculation on your tax return.
- If you agree with the changes, no action is required, and you should receive your adjusted refund within 4-6 weeks.
- If you disagree with the changes, you must contact the IRS within 60 days, either by phone or by mail, to dispute the changes.
- Ignoring the CP12 Notice can result in the changes being finalized, which may lead to an incorrect refund or overpayment adjustment.
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