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Letter 3404C: What Is It and How Should You Respond?

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Last updated 11/11/2024 by
SuperMoney Team
Fact checked by
Ante Mazalin
Summary:
The IRS issues Letter 3404C to inform taxpayers about “Third Party Contact” inquiries. This letter notifies taxpayers that the IRS is reaching out to third parties, such as banks or employers, to verify or obtain information related to their tax filing. While it doesn’t imply wrongdoing, Letter 3404C ensures transparency about third-party checks and offers steps to address any concerns or respond if additional information is needed. This article will help you understand what IRS Letter 3404C means, why it’s issued, and what actions you should take to stay compliant with IRS requests.
Receiving a letter from the IRS can raise concerns, especially when it’s about third-party contacts related to your tax records. IRS Letter 3404C serves as an informational notice, alerting taxpayers that the IRS plans to gather information from third parties, such as banks, employers, or financial institutions. This process often supports routine checks or confirms details in tax returns. It’s important to understand how this notice works, why it’s issued, and how you should respond if you receive one. In this article, we’ll explore the purpose of Letter 3404C, the “Third Party Contact” concept, and what it means for you as a taxpayer.
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What is IRS Letter 3404C?

IRS Letter 3404C informs taxpayers about the IRS’s intent to reach out to third parties for information relevant to their tax matters. This contact doesn’t mean there is an issue or penalty involved; instead, it’s a part of the IRS’s verification processes. Through Letter 3404C, the IRS maintains transparency by notifying you before they contact entities like banks, employers, or other financial organizations to gather information about your finances or tax situation.

Why does the IRS send Letter 3404C?

The IRS sends Letter 3404C to comply with federal law, which mandates notifying taxpayers of potential third-party contacts. These inquiries often help the IRS clarify or verify information on tax returns, particularly if there are discrepancies, missing data, or unusual deductions. The goal is to ensure tax compliance without surprising taxpayers about external information gathering.
This notice doesn’t imply suspicion of fraud or penalties, but it allows taxpayers to be informed about steps the IRS may take to verify details. For instance, if a reported income source appears inconsistent, the IRS may confirm this information with the relevant employer or financial institution to avoid misunderstandings.

Pro Tip

Set up IRS account alerts online to get real-time notifications on any changes to your tax return or account. This helps you stay updated on adjustments and due dates.

How does Letter 3404C affect you?

Receiving Letter 3404C indicates that the IRS may contact other entities to validate the information in your tax records. While this doesn’t directly impact your current tax filings, it’s a reminder to review your documents for accuracy and respond promptly to any further IRS requests.
The IRS uses third-party verifications to address common issues like mismatched income reports or unusual deductions. If the IRS finds inconsistencies after these inquiries, you may receive follow-up letters with requests for clarification or additional documents.

What does “Third Party Contact” mean?

“Third Party Contact” refers to the IRS’s legal authority to reach out to entities other than the taxpayer to verify details related to tax filings. Common contacts include:
  • Financial institutions: Banks and lenders may confirm account details, loan status, or transaction records.
  • Employers: Employers may verify income, employment dates, or withheld taxes.
  • Service providers: Contracted businesses or independent contractors may be asked to validate invoices or service charges.
These contacts help the IRS gather a comprehensive view of your financial profile, ensuring that the tax records match your reported information.

Pro Tip

Keep copies of your previous IRS correspondence. If you receive Letter 3404C, having prior documents can help you quickly reference and verify information, making it easier to respond.

What should you do if you receive Letter 3404C?

When you receive Letter 3404C, here’s how to approach it:
  • Read the notice carefully: Understand that the letter is informational. It serves as a heads-up about potential third-party inquiries, so take note of its details.
  • Review your tax documents: Verify that all your information is accurate and up-to-date. Double-check income sources, deductions, and other reported figures to avoid issues during IRS verifications.
  • Contact the IRS if needed: If you have questions or believe the IRS may reach out to a specific third party incorrectly, contact the IRS at the number provided in the letter.
Generally, no action is required from you unless you believe there’s an error in your tax records. The notice is primarily informational, ensuring that you are aware of the IRS’s transparency practices.

Responding to potential follow-up requests

If the IRS identifies discrepancies through third-party contact, you may receive a follow-up letter requesting clarification. In this case:
1. Review the letter thoroughly: Note any specific items or records requested.
2. Gather supporting documents: Prepare documentation to clarify discrepancies, such as pay stubs, bank statements, or loan records.
3. Submit a clear response: Provide the requested documents in a timely and organized manner, following any instructions in the letter to avoid delays in processing.

Pro Tip

If you suspect an error in the IRS’s information, consult a tax professional before contacting the IRS. A professional can help clarify and correct issues efficiently, saving you time and stress.

How to stay compliant with IRS procedures

Maintaining tax compliance goes beyond responding to IRS notices; it includes proactive measures to ensure accurate tax filings. Here are a few tips to help you remain compliant:
  • Maintain thorough records: Keep receipts, invoices, and documents that support your income and deductions.
  • Double-check tax forms: Review your tax returns to ensure accuracy and completeness before submission.
  • Stay informed on tax regulations: Tax laws evolve frequently, so staying updated helps avoid unintentional errors.

Potential penalties or issues if you ignore Letter 3404C

If you ignore follow-up requests after receiving Letter 3404C, the IRS could assess penalties or additional taxes. Here’s what could happen:
  • Increased scrutiny: Failure to respond may lead to more in-depth reviews of your tax filings.
  • Penalties for underreported income: If third-party contacts reveal unreported income, you could face fines or back taxes.
  • Legal action in serious cases: Prolonged discrepancies without response may escalate to enforcement actions.
While Letter 3404C itself doesn’t impose penalties, ignoring subsequent follow-up inquiries can lead to complications.

What outcomes can you expect after responding?

After you respond to Letter 3404C or related follow-ups, here are some common outcomes:
  • No further action: If all details are verified, the IRS will accept your filing as accurate.
  • Request for additional information: The IRS may ask for more documents to clarify discrepancies.
  • Resolution with adjustments: If discrepancies are found, the IRS may adjust your return and provide an updated tax balance.
Your timely and organized response is key to resolving issues and avoiding further complications.
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Frequently asked questions

What does it mean if I receive IRS Letter 3404C but have no errors on my tax return?

Receiving IRS Letter 3404C doesn’t necessarily mean there are errors on your tax return. The IRS sends this letter as a courtesy to inform you that they may contact third parties to verify information, even if everything appears correct. It’s simply part of their standard process to ensure accuracy and doesn’t imply any wrongdoing on your part.

Will the IRS notify me of the specific third parties they contact?

Generally, the IRS does not provide specific details about which third parties they contact after sending Letter 3404C. However, the IRS is legally required to notify you of their intent to gather information from third parties, which is why you received this letter. You may receive further information if additional clarification is required.

How should I respond if I believe the IRS’s information may be incorrect?

If you believe that the information the IRS has is incorrect or that a third-party contact could be based on outdated data, you can contact the IRS directly using the phone number provided in Letter 3404C. Addressing discrepancies proactively can help you resolve issues efficiently and prevent delays in any future processing of your returns.

Does receiving IRS Letter 3404C mean I’m under an official audit?

No, receiving Letter 3404C does not mean you are under an official audit. This letter is informational and related to third-party contact. An audit would involve a more formal process with specific requests for detailed documentation and would be communicated through separate IRS notices.

Can I request a copy of the information the IRS receives from third parties?

Yes, you can request a copy of the information the IRS gathers from third-party contacts. This request can be made under the Freedom of Information Act (FOIA). Contact the IRS’s FOIA service for instructions on how to submit your request if you would like access to these details for your records.
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

  • IRS Letter 3404C is a notification about the IRS’s intent to contact third parties, such as employers or financial institutions, to verify your tax information.
  • This letter does not mean you are under audit or facing penalties; it’s primarily for transparency about the IRS’s verification process.
  • “Third Party Contact” allows the IRS to reach out to entities for information that may help clarify or confirm items on your tax return.
  • No immediate action is required from you unless the IRS follows up with a specific request or if you believe there’s an error in your tax records.
  • Ignoring subsequent inquiries after receiving Letter 3404C could lead to additional scrutiny or penalties if discrepancies are found.

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