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CP161A Notice: What It Means for Your Business Taxes

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Last updated 10/30/2024 by
SuperMoney Team
Fact checked by
Ante Mazalin
Summary:
The CP161A notice is an additional tax assessment notice issued by the IRS for business entities. It typically indicates an outstanding balance or discrepancies related to payroll, excise, or other taxes owed. This notice informs the taxpayer of the additional amount assessed, penalties, or interest accrued, and provides instructions on resolving the balance. Understanding and responding promptly to a CP161A notice is crucial for avoiding further penalties or potential enforcement actions by the IRS.
Receiving a CP161A notice from the IRS can be alarming for business owners, as it often signals an issue with tax assessments or unpaid balances. The notice could result from an outstanding tax amount, incorrect calculations, or discrepancies in filed returns. Addressing the notice quickly and accurately is essential to prevent additional interest, penalties, or enforcement actions. This article will guide you through what the CP161A notice entails, its potential implications, and the steps you should take to resolve it effectively.
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.

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What is a CP161A notice?

The CP161A notice is an additional tax assessment notification issued by the IRS to business entities. It is typically sent when there are outstanding balances related to taxes, such as payroll or excise taxes. The notice indicates that the IRS has determined a discrepancy in the taxes owed and assessed an additional amount that must be paid. This could be due to:
  • Underreported tax liabilities.
  • Errors in tax calculations on filed returns.
  • Penalties and interest for late payments or noncompliance.
The IRS issues this notice to inform taxpayers about the extra amount due and to outline steps for payment or dispute resolution. The CP161A notice is not necessarily an indication of wrongdoing but does require prompt action to avoid further penalties.

How does the CP161A notice impact your business?

A CP161A notice can significantly impact a business’s financial health if not addressed promptly. Ignoring or delaying a response may lead to several consequences, including:
  • Increased penalties and interest: Unpaid balances will continue to accrue interest, and additional penalties may be assessed for failure to pay or resolve the notice promptly.
  • IRS enforcement actions: If the outstanding balance remains unresolved, the IRS may initiate enforcement actions, such as liens or levies, to collect the debt.
  • Impact on cash flow: Payment of the additional amount due may strain the business’s finances, especially for small businesses with limited cash reserves.
Addressing the notice promptly can help minimize the financial and operational impact on the business.

Pro tip

Always keep detailed records of your tax filings and payments. If you receive a CP161A notice, having accurate documentation readily available can help resolve discrepancies faster.

Common reasons for receiving a CP161A notice

There are several reasons why a business might receive a CP161A notice. Understanding these can help in determining the appropriate response:

Underreported tax liabilities

The IRS may send a CP161A notice if it finds discrepancies between the tax liabilities reported by the business and what the IRS calculates based on its records. This could result from errors in payroll tax reporting, excise tax filings, or other tax submissions.

Miscalculations or clerical errors

Mistakes in tax filings, such as incorrect amounts entered for taxable income, credits, or deductions, can lead to additional tax assessments. Even minor clerical errors can trigger a CP161A notice.

Penalties for late payments

The IRS imposes penalties for late tax payments, and interest accrues on any unpaid tax amount. If a business fails to pay taxes on time, the CP161A notice may reflect the additional amount owed, including interest and penalties.

Steps to take after receiving a CP161A notice

When you receive a CP161A notice, it’s important to act promptly to avoid further complications. Here’s what you should do:

Review the notice thoroughly

Carefully read the CP161A notice to understand the details of the additional tax assessment. Pay close attention to the amount owed, the tax period in question, and any deadlines for payment or response.

Verify the information

Cross-check the notice details with your tax records to determine if there is an error in the IRS’s calculations. If you identify a discrepancy, you may need to provide documentation to the IRS supporting your original tax filings.

Respond within the given timeframe

The CP161A notice will specify a deadline for payment or response. Make sure to act within this timeframe to avoid additional interest and penalties.

Make the payment or dispute the assessment

  • Pay the amount due: If you agree with the IRS’s assessment, follow the instructions on the notice to pay the outstanding amount.
  • Dispute the assessment: If you believe the assessment is incorrect, you can dispute the notice by providing supporting documents. Contact the IRS immediately to start the dispute process and submit any required documentation.

Pro tip

Consider enrolling in an IRS payment plan before the deadline if you know you can’t pay the full amount. Setting up a payment arrangement early can prevent additional penalties and interest from accruing.

Payment options for resolving a CP161A notice

If you decide to pay the assessed amount, the IRS offers several payment options to suit different circumstances:

Pay online

The IRS provides online payment services through its Electronic Federal Tax Payment System (EFTPS), where you can pay taxes directly from your bank account or via a credit or debit card.

Set up a payment plan

For businesses unable to pay the full amount immediately, the IRS offers installment agreements. You can apply for a payment plan online or by contacting the IRS to arrange manageable monthly payments.

Pay by check or money order

If you prefer to pay by mail, you can send a check or money order to the IRS. Ensure that you include the payment voucher from the CP161A notice and write your Employer Identification Number (EIN) on the payment.

What to do if you disagree with the CP161A notice

If you believe that the CP161A notice is incorrect, you have the right to dispute it. Here’s how:

Contact the IRS

Start by reaching out to the IRS using the contact information provided on the notice. Explain your reasons for disputing the assessment and ask for clarification.

Submit supporting documentation

Provide any relevant documents that support your claim, such as corrected tax filings, payroll records, or other financial statements. This evidence can help to demonstrate discrepancies in the IRS’s assessment.

Consider professional assistance

If the situation becomes complex, or you need help understanding the notice, consult a tax professional. Certified tax professionals can assist with gathering the necessary documentation, negotiating with the IRS, and ensuring compliance with all requirements.

Pro tip

Consult a tax professional before responding to a CP161A notice if the amount owed is significant. A professional can help identify errors, negotiate with the IRS, and provide guidance on reducing penalties.

Potential penalties if you ignore a CP161A notice

Ignoring a CP161A notice can lead to severe consequences, including:
  • Accumulation of interest and penalties: The IRS continues to accrue interest and impose penalties on unpaid balances.
  • Enforcement actions: If the debt remains unresolved, the IRS may pursue collection actions such as levies, liens, or wage garnishments.
  • Credit impact: IRS tax liens can appear on your business credit report, potentially affecting your ability to obtain financing.
Responding quickly can help avoid these outcomes and keep your business’s financial standing intact.
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Frequently asked questions

What should I do if I can’t pay the full amount on the CP161A notice?

If you’re unable to pay the full amount indicated on the CP161A notice, you can set up an installment agreement with the IRS. This allows you to make manageable monthly payments over time. You can apply for a payment plan online through the IRS’s website or contact the IRS directly to discuss other payment options.

Can I get the penalties reduced or waived?

In some cases, the IRS may agree to reduce or waive penalties if you can show reasonable cause for failing to pay or file on time. To request penalty abatement, you’ll need to provide a written explanation of the circumstances that led to the penalty. Documentation supporting your claim, such as medical records or financial hardship evidence, may also be necessary.

How long do I have to respond to a CP161A notice?

The CP161A notice typically specifies a deadline by which you must pay the assessed amount or dispute the notice. This deadline is usually 30 days from the date of the notice. It’s important to act quickly to avoid additional interest, penalties, or enforcement actions.

What happens if my dispute with the IRS is unsuccessful?

If your dispute with the IRS is unsuccessful and the agency determines that the assessment is accurate, you’ll still be responsible for paying the amount due. The IRS will provide instructions on how to proceed with payment or set up a payment plan. You may also consider appealing the decision if you believe there are valid grounds for further review.

Will receiving a CP161A notice affect my business credit score?

While the notice itself won’t impact your business credit, failure to resolve the outstanding balance could. If the IRS files a tax lien against your business, it may appear on your business credit report and negatively affect your credit score. Addressing the notice promptly can help prevent such actions and protect your business’s credit standing.
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

  • The CP161A notice is an additional tax assessment for business entities, often related to payroll or excise taxes.
  • Common reasons for the notice include underreported liabilities, miscalculations, or late payment penalties.
  • Respond promptly to avoid further penalties, interest, and potential enforcement actions by the IRS.
  • Payment can be made online, through installment agreements, or by check. Disputes can be initiated if the assessment is incorrect.
  • Professional assistance may be beneficial in complex cases or when large amounts are involved.

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