Letter 105C: What It Means When the IRS Denies Your Refund

Last updated 10/30/2024 by

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Summary:

Letter 105C is issued by the IRS when a taxpayer’s request for a refund is denied. This may happen due to various reasons, such as mistakes on the tax return, missed deadlines, or an issue with the taxpayer’s eligibility for the claimed refund. Receiving this notice can be unsettling, but it provides important details about why the refund was denied and outlines the steps taxpayers can take to address the issue or dispute the decision if necessary.

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Receiving a notice from the IRS can be a nerve-wracking experience, particularly when it involves the denial of a tax refund claim. The IRS Letter 105C indicates that the IRS has denied your claim for a refund due to issues such as filing errors, missed deadlines, or ineligibility for certain tax credits. Understanding why you received this letter and knowing how to respond can help you avoid further complications and possibly reverse the denial. This article will guide you through everything you need to know about Letter 105C, including common reasons for refund denials and the steps you should take next.

What is IRS letter 105C?

Letter 105C is a formal notification from the IRS informing taxpayers that their request for a refund has been denied. The letter provides specific reasons for the denial and details any corrections made to the taxpayer’s return. It often results from errors found on the submitted tax return or discrepancies in the taxpayer’s reported information. Understanding the contents of the letter can help taxpayers identify what went wrong and determine the next steps.

Common reasons for receiving a 105C letter

Several factors can trigger the issuance of Letter 105C:

Filing errors: Mistakes in calculations, missing information, or mismatched Social Security numbers can lead to a denial.
Missed deadlines: Filing a claim for a refund outside of the IRS’s established time frame, typically within three years of the original filing date, can result in denial.
Ineligibility for certain credits: Claiming tax credits or deductions that do not apply based on your financial situation or filing status can also trigger a denial.
Insufficient documentation: If the IRS requests additional information to support your claim, and it’s not provided, they may deny the refund.

In some cases, the IRS might find that you owe additional taxes instead, based on the corrections they made to your tax return.

How does receiving a 105C letter affect you?

When you receive Letter 105C, it means that your refund will not be processed as expected, and any anticipated payment will not be issued. This can be a significant setback, especially if you were relying on the refund to cover expenses or manage debts. Furthermore, if the IRS made corrections that resulted in additional taxes owed, you may need to pay the new balance promptly to avoid accruing interest and penalties.

Possible consequences of not addressing a 105C letter

Ignoring Letter 105C can lead to further complications, including:

Accumulation of interest and penalties on any additional tax owed.
Delays in processing future tax returns or refunds.
Potential enforcement actions, such as wage garnishments or tax liens, if the situation is not resolved.

Taking immediate steps to address the issues raised in the letter is crucial to avoid these consequences.

Pro Tip

Keep copies of all correspondence with the IRS, including the original 105C letter, appeals, and any supporting documents. This can be helpful for future reference and in case of a dispute.

What should you do when you receive Letter 105C?

Upon receiving a 105C letter, it is important to take prompt action. Follow these steps to resolve the situation:

Review the letter carefully: Understand why your refund was denied and what corrections the IRS made to your tax return. Pay attention to the specific reasons provided in the letter.
Check your original tax return: Compare the information on the original return with the IRS’s corrections to identify any discrepancies or mistakes.
Provide additional documentation if required: If the letter requests further information to support your claim, gather and submit the necessary documents to the IRS.
Pay any additional taxes owed: If the IRS indicates that you owe more taxes, make arrangements to pay the balance as soon as possible to avoid interest and penalties.

How to appeal the denial

If you believe the IRS made an error in denying your claim, you have the right to appeal the decision. Follow these steps to dispute the denial:
1.Prepare a written protest: Include a statement explaining why you disagree with the denial and attach any supporting documentation.
2. Submit the protest to the IRS office that issued the letter: Follow the instructions provided in Letter 105C for submitting an appeal.
3. Consider professional assistance: Engaging a tax professional, such as a CPA or tax attorney, can help strengthen your case and navigate the appeal process.

Pro Tip

If you’re unsure about your tax return accuracy, consider using a reputable tax software or consulting a tax professional before filing. This can reduce the likelihood of errors that lead to refund denials.

How to prevent receiving a 105C letter in the future

To avoid the hassle of dealing with a 105C letter, consider taking the following precautions:

Double-check your tax return: Verify all calculations, Social Security numbers, and other details before submitting your return.
File on time: Make sure to submit any claims for refunds within the IRS’s established deadlines.
Keep accurate records: Maintain documentation of all deductions, credits, and income reported on your tax return in case you need to support your claims.
Seek help if needed: Consult a tax professional to review your return for accuracy before filing, especially if you have a complex tax situation.

Pro Tip

Respond to any IRS requests as soon as possible. Timely action can help resolve issues faster and may prevent additional penalties, interest, or delays in processing your tax returns.

What to do if you believe you are entitled to a refund

If you still believe you are entitled to a refund after receiving Letter 105C, follow these steps to strengthen your case:

Gather evidence: Collect any documents that support your original refund claim, such as receipts, statements, or other relevant records.
Submit a formal request for reconsideration: Provide a detailed explanation of why you believe you are entitled to a refund, along with the supporting documentation.
Contact the IRS for assistance: You can call the IRS helpline to discuss the situation and clarify any questions you may have about the denial.

If necessary, consider seeking help from a tax professional to review your situation and advise on the best course of action.

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Frequently asked questions

Why did I receive a 105C letter?

You received this letter because the IRS denied your request for a refund. Common reasons include errors on your tax return, missing documentation, or claims filed after the deadline.

Can I appeal the IRS’s decision to deny my refund?

Yes, you can appeal the decision by submitting a written protest with supporting documentation to the IRS office that issued the 105C letter.

What happens if I ignore the 105C letter?

Ignoring the letter can result in interest and penalties on any taxes owed and may cause delays in processing future tax returns or refunds.

How long do I have to respond to a 105C letter?

The IRS usually provides a specific time frame for responding to the letter, which will be indicated in the notice. It is important to respond promptly to avoid further issues.

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

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

Letter 105C notifies taxpayers when a claim for a refund has been denied by the IRS.
Common reasons for denial include filing errors, missed deadlines, and ineligibility for certain credits.
Acting quickly is important to resolve the issue, avoid penalties, and prevent future complications.
Taxpayers have the right to appeal the IRS’s decision and should provide additional documentation if necessary.

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