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Letter 593C: Understanding IRS Discrepancy Notices

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Last updated 11/19/2024 by
SuperMoney Team
Fact checked by
Ante Mazalin
Summary:
IRS Letter 593C is sent to taxpayers as a follow-up communication when the IRS identifies potential inaccuracies, missing information, or issues with a taxpayer’s submitted Form 1099, Form W-2, or other income documentation. This letter requests the taxpayer to verify or correct specific information to ensure compliance and accurate tax reporting. Failure to address this letter promptly can lead to processing delays, incorrect tax assessments, or additional scrutiny. This article will guide you through understanding Letter 593C, its purpose, how it affects you, and the steps to respond effectively.
Receiving a letter from the IRS can be unsettling, especially when it involves discrepancies in your income records. IRS Letter 593C serves as an official notice for taxpayers to address inconsistencies in their submitted income documentation, such as Form 1099 or W-2. Understanding the letter’s purpose and acting quickly is essential to prevent processing delays, avoid penalties, and maintain compliance. In this guide, we’ll explain the details of Letter 593C, its potential impacts, and how to respond efficiently to ensure your tax matters remain in good standing.

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What is IRS Letter 593C?

IRS Letter 593C is an informational letter requesting clarification or corrections on discrepancies between your submitted tax return and income records reported by employers, payers, or other entities. This letter typically arises when:
  • The IRS detects mismatched or incomplete information in your Form W-2, 1099, or similar tax documents.
  • Income reported on your return doesn’t match third-party records from employers or financial institutions.
  • Additional documentation is required to verify the accuracy of your reported income.
The IRS sends Letter 593C to ensure taxpayers resolve these discrepancies before proceeding with tax assessments or audits. While the notice does not always indicate wrongdoing, it’s important to address it promptly to avoid further complications.
Struggling with IRS notices? If you’ve received an IRS letter and aren’t sure how to handle it, you might want to explore professional tax relief options. Optima Tax Relief has helped thousands of people resolve their tax issues and get back on track with the IRS. Learn more about how they can assist you with your situation.

How does Letter 593C affect you?

Letter 593C has several potential implications depending on the nature of the discrepancies and how promptly you respond:

Delays in tax processing

If the IRS cannot verify your income or other tax details, your return may be delayed. This could impact refunds or delay the resolution of pending matters.

Additional scrutiny

Failure to resolve issues highlighted in the letter may increase the likelihood of a more detailed audit or investigation into your tax filings.

Penalties or adjustments

In some cases, unresolved discrepancies can lead to changes in your tax liability, such as additional taxes owed or penalties for underreporting income.
Responding to the letter promptly helps mitigate these risks, ensures your return is processed smoothly, and demonstrates compliance with tax regulations.

Pro Tip

Keep a folder with all your tax-related documents, including W-2s, 1099s, and IRS correspondence. Having organized records can make responding to discrepancies easier and faster.

Why did I receive Letter 593C?

The IRS typically issues Letter 593C for the following reasons:

Inconsistent or mismatched records

The information reported by a third party, such as your employer or financial institution, doesn’t match the data you provided in your tax return.

Missing or incomplete documents

Key forms like Form W-2, Form 1099, or other income statements may not have been included or were incomplete in your submission.

Errors in reported income

Mathematical errors, misreported amounts, or incorrect filing status may trigger the letter.

Potential identity theft

Unusual activity or inconsistent reporting could also flag the IRS to send a letter to verify your identity and tax details.

What should you do when you receive IRS Letter 593C?

Taking timely action is critical when you receive Letter 593C. Follow these steps to resolve the issue effectively:
  • Read the letter thoroughly: Understand the specific issues flagged by the IRS and identify what is required of you.
  • Review your records: Cross-check your tax return and supporting documents, such as Form 1099 and Form W-2, for accuracy.
  • Gather supporting documentation: Compile any additional records needed to substantiate your claims, such as receipts, corrected forms, or employer statements.
  • Correct discrepancies: If errors exist, file an amended tax return or provide the necessary corrections to the IRS.
  • Respond promptly: Use the response address or instructions provided in the letter to submit your corrections or explanations within the designated timeframe.

Pro Tip

Double-check your tax return before filing to ensure all information matches your W-2s, 1099s, and other income forms. Preventing errors upfront reduces the chances of receiving a notice like Letter 593C.

How to respond to Letter 593C

Step-by-step guide to responding

When responding to Letter 593C, follow these steps for a seamless resolution:
  • Contact your employer or payer: Verify the accuracy of the income statements they provided, such as W-2 or 1099 forms.
  • Submit a written explanation: If you believe the IRS made an error, include a detailed letter explaining your position.
  • Include corrected forms if applicable: If your employer or payer issued a corrected form, attach it to your response.
  • Provide supporting documents: Include any additional documents that substantiate your claims, such as pay stubs or bank statements.
  • File an amended return if necessary: Use Form 1040-X to amend your tax return for any significant changes or corrections.
  • Mail your response: Send your response to the address provided in the letter, ensuring it’s postmarked within the specified deadline.

Alternative ways to respond

You can also contact the IRS directly by phone if the letter includes a contact number. For complex cases, consult a tax professional to ensure your response is accurate and comprehensive.

Pro Tip

If you’re unsure about how to respond to Letter 593C, consult a certified tax professional or contact the IRS’s Taxpayer Advocate Service for personalized assistance.

What happens if you ignore Letter 593C?

Failing to respond to Letter 593C can lead to the following consequences:
  • Delays in processing your tax return, potentially holding up refunds.
  • Changes to your tax liability, including penalties or additional taxes owed.
  • Increased scrutiny, possibly triggering an audit or further investigation.
Timely response is crucial to avoid these outcomes and maintain compliance.
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Frequently asked questions

What is the purpose of IRS Letter 593C?

IRS Letter 593C serves as a notification to taxpayers that discrepancies exist between their tax return and income information reported by third parties, such as employers or financial institutions. The purpose is to resolve these discrepancies before the IRS processes or adjusts your return.

Can I respond to Letter 593C electronically?

In most cases, the IRS requires taxpayers to respond via mail with supporting documents, corrected forms, or written explanations. However, some issues may be resolved through the IRS’s secure online portal, depending on the details provided in the letter. Check the specific instructions in your notice.

What happens if my employer or financial institution made the error?

If the discrepancy originates from an incorrect W-2 or 1099 issued by your employer or financial institution, you should contact them immediately to request a corrected form. Attach the corrected form to your response when sending it to the IRS.

How long does it take the IRS to process my response?

The IRS typically takes 4-6 weeks to review and process responses to Letter 593C. Delays may occur during peak tax season or if additional information is required. Responding promptly and providing complete documentation can help expedite the process.

What should I do if I suspect identity theft related to Letter 593C?

If you suspect that the discrepancies in your records are due to identity theft, notify the IRS immediately. File Form 14039, Identity Theft Affidavit, to alert the IRS of fraudulent activity. Additionally, consider placing a fraud alert with credit bureaus and monitoring your financial accounts for suspicious activity.
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 593C is sent when discrepancies arise in income documentation or tax returns.
  • Responding promptly is crucial to avoid delays, penalties, or increased scrutiny.
  • Review your tax records, provide supporting documents, and resolve discrepancies with the IRS.
  • Seek professional assistance if necessary for complex cases or identity theft concerns.

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