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IRS Letter 556B: What It Means for Your Taxes

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Last updated 11/27/2024 by
Silas Bamigbola
Fact checked by
Ante Mazalin
Summary:
IRS Letter 556B is a notification that your tax return has been selected for audit. The letter specifies areas under examination, requests documentation to verify the reported information, and includes Form 4549, which outlines proposed changes if sufficient evidence is not provided. Acting promptly to address the letter can help avoid penalties and ensure the audit process concludes efficiently.
Receiving IRS Letter 556B can be intimidating, but understanding its purpose and taking the right steps can make the process manageable. This letter informs taxpayers that their return has been selected for examination and requests supporting documentation for specific items. In this guide, we’ll explain what IRS Letter 556B entails, how to respond effectively, and what to expect during the audit process.

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Understanding IRS Letter 556B

What is IRS Letter 556B?

IRS Letter 556B is an official notification indicating that the IRS has selected your tax return for examination. This letter specifies the items under review and provides instructions for submitting supporting documents. It’s part of the IRS’s efforts to ensure compliance and accuracy in tax filings.
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.

Why does the IRS issue this letter?

Tax returns may be flagged for audit due to:
  • Discrepancies: Differences between your return and third-party information, such as employer-reported income.
  • High-risk deductions: Claims that appear unusual or exceed standard thresholds.
  • Random selection: The IRS audits a certain number of returns at random for compliance checks.

Pro Tip

Respond to IRS Letter 556B promptly. Timely responses show your willingness to cooperate and may prevent additional penalties or escalation of the audit process.

What does Letter 556B include?

The letter contains:
  • Details of the examination: Specific items or deductions under scrutiny.
  • Documentation requests: A list of documents needed to verify reported information.
  • Form 4549: Proposed tax changes if discrepancies are found or documentation is insufficient.
  • Deadline: A date by which you must respond to avoid penalties.

Immediate steps after receiving Letter 556B

Read the letter carefully

Understand the specific issues the IRS is examining and note any deadlines or required actions.

Confirm the letter’s authenticity

Ensure the letter is genuine by checking the IRS contact information and calling their official helpline if necessary.

Gather supporting documentation

Collect all relevant records, such as:
  • Receipts
  • Invoices
  • Bank statements
  • W-2s or 1099s

Consider consulting a tax professional

If the issues are complex, seeking advice from a tax attorney or Certified Tax Resolution Specialist can be helpful.

Responding to IRS Letter 556B

How to organize your response

  • Organize your documents: Group your records by the items under examination for clarity.
  • Include a cover letter: Summarize your response and reference the specific concerns addressed.
  • Be concise: Avoid providing unnecessary information that may prompt further inquiries.

Pro Tip

Keep all documentation well-organized. Presenting clear and concise records makes it easier for the IRS to process your case and reduces the chances of misunderstandings.

Submitting your response

  • Follow the instructions in the letter, including the address and method of delivery.
  • Send your response via certified mail with a return receipt.
  • Retain copies of all submitted documents for your records.

Meeting the response deadline

Ensure your response is delivered by the stated deadline to prevent penalties or escalation.

Understanding Form 4549

What is Form 4549?

Form 4549 outlines proposed changes to your tax return based on the IRS’s findings. It includes adjustments to income, deductions, and credits.

Reviewing the form

  • Cross-reference the IRS’s findings with your records.
  • Note any discrepancies or errors that need clarification.

Agreeing or disputing the changes

  • If you agree: Sign the agreement form and pay any additional tax owed.
  • If you disagree: Follow the instructions to appeal the changes or request further review.

Common outcomes of an IRS audit

No changes

If the IRS finds no discrepancies, the examination will conclude with no adjustments to your return.

Agreed changes

You may accept the IRS’s proposed changes and settle any outstanding liabilities.

Disputed changes

You can appeal or dispute the findings if you disagree with the proposed adjustments.

Consequences of not responding to IRS Letter 556B

Failing to respond to IRS Letter 556B can lead to serious financial and legal issues. The IRS uses audits to ensure compliance, and ignoring their requests may escalate the situation. Here are the potential consequences:
  • Increased tax liability: If you do not provide the requested documentation, the IRS may assume the reported information is inaccurate. This can result in additional taxes owed, penalties, and interest.
  • Enforcement actions: The IRS can take aggressive measures to collect unpaid taxes, including wage garnishments, bank levies, and placing liens on your property.
  • Loss of appeal rights: If you don’t respond or dispute the proposed changes within the specified time frame, you forfeit your right to appeal the IRS’s decision.
  • Ongoing audits: Non-compliance in one audit can increase the likelihood of future audits, placing a continued strain on your finances and time.

Pro Tip

Seek professional help if the audit involves complex issues. Tax professionals can handle communications with the IRS and provide strategic guidance to resolve your case effectively.

Seeking professional help

Responding to an IRS audit can be complex, especially if the requested items involve substantial financial data or technical tax issues. In such cases, seeking professional assistance can make a significant difference in the outcome.

Benefits of hiring a tax professional

  • Expertise: Tax professionals such as CPAs, enrolled agents, and tax attorneys have experience navigating audits and understand IRS procedures.
  • Representation: A qualified representative can handle communications with the IRS on your behalf, reducing stress and avoiding potential missteps.
  • Strategic guidance: Professionals can analyze your case, identify weaknesses, and develop a response strategy to mitigate potential liabilities.

When to seek professional help

Consider hiring a professional if:
  • The audit involves complex tax issues or large amounts of money.
  • You’re unsure how to collect or present the required documentation.
  • You disagree with the IRS’s proposed changes and wish to file an appeal.
  • You want to minimize the risk of errors and ensure your case is handled correctly.

How to find the right professional

When seeking assistance, look for professionals with:
  • Relevant credentials, such as CPA, EA (Enrolled Agent), or tax attorney.
  • Experience handling IRS audits and appeals.
  • Positive reviews and testimonials from past clients.
Looking for the best way to reduce your tax burden? We’ve compiled a list of the Best Tax Relief Companies to help you navigate tax challenges and save money. Click here to discover trusted experts who can assist you with tax resolution, IRS negotiations, and more!

Frequently asked questions

What happens if I ignore IRS Letter 556B?

Ignoring IRS Letter 556B can have serious consequences. The IRS may proceed with their proposed changes without your input, which could result in additional tax liabilities, penalties, and interest. Failure to respond could also lead to enforcement actions such as wage garnishments or liens.

How can I request an extension to respond to the letter?

If you need more time to respond, you can call the phone number provided in the letter to request an extension. Be prepared to explain why you need additional time and ensure that the extension request is submitted before the response deadline.

Will hiring a tax professional help me with the audit process?

Yes, hiring a tax professional can be highly beneficial, especially for complex audits or if you’re unsure how to provide the required documentation. Professionals like CPAs, tax attorneys, or Certified Tax Resolution Specialists have experience dealing with IRS audits and can represent you to ensure the best possible outcome.

Can I resolve the audit entirely online?

While some steps, such as accessing IRS records and uploading documents, can be completed online, many audits require a formal written response and submission of hard copies of documents. Check the specific instructions in IRS Letter 556B to determine the permitted submission methods.

What should I do if I discover errors on my tax return during the audit?

If you find errors on your tax return while preparing your response, you should acknowledge them in your reply to the IRS. Provide corrected information and supporting documentation. In some cases, the IRS may adjust your return, and you may owe additional taxes or be entitled to a refund.
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 556B notifies taxpayers of an audit and requests supporting documentation.
  • Act promptly to respond and provide necessary evidence to avoid penalties.
  • Seek professional assistance if the issues are complex or unclear.
  • Ignoring the letter can lead to further action, including fines or additional tax assessments.

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IRS Letter 556B: What It Means for Your Taxes - SuperMoney