One of the ways we classify our notices is by the type of tax form they're about. We call notices we send about Form 1040, 1040A, 1040EZ, or any related schedules, forms, or other attachments individual filer notices. Notices we send about business-related tax forms such as Forms 941, 1065, and 1120, are called business filer notices and are listed elsewhere. If the individual filer notice you have isn't listed below, check back often. We'll be adding more on a regular basis.
Here's a list of notices with detailed information available.
CP 09 - Earned Income Credit You May Be Entitled To From IRS
Informs the recipient that, based on information reported on their tax return, they may qualify to take the Earned Income Credit.
CP 10 - Changes to Tax Return, Reduced Amount Applied to Next Year's Estimated Tax
Informs the recipient of one or more changes made to their individual income tax return. The changes resulted in a reduced amount being applied to the following year's estimated tax.
CP 11 - Changes to Tax Return, Balance Due
Informs the recipient of one or more changes made to their tax return during processing. The changes resulted in a balance due on the account.
CP 11A - Changes to Tax Return and Earned Income Credit, Balance Due
Informs the recipient of one or more changes made to their tax return during processing. At least one of the changes affected the Earned Income Credit, and resulted in a balance due on the account.
CP 12 - Changes to Tax Return, Overpayment
Informs the recipient of one or more changes made to their tax return during processing. The changes resulted in an overpayment that will be refunded within six weeks if no other taxes are owed.
CP 13 - Changes to Tax Return, No Refund and No Balance Due
Informs the recipient of one or more changes made to their tax return during processing. The changes resulted in neither a balance due nor an overpayment on the account.
CP 13A - Changes to Tax Return and Earned Income Credit, No Refund and No Balance Due
Informs the recipient of one or more changes made to their tax return during processing. At least one of the changes affected the Earned Income Credit. There is neither an overpayment nor a balance due on the account.
CP 14 - Balance Due
Informs the recipient that there is a balance due on their individual tax account.
CP 16 - Changes to Tax Return, Resulting Overpayment Applied to a Balance Due
Informs the recipient of one or more changes made to their individual income tax return. The changes resulted in an overpayment, all or part of which we've applied to a balance due on another tax year.
CP 21B - Data Processing Adjustment Notice, Overpayment of $1 or more, Balance Due
Informs the recipient of changes made to their account which resulted in an overpayment and recipient is due money back.
CP 22A - Data Processing Adjustment Notice, Bal Due of $5 or more, Balance Due
Informs the recipient of data processing adjustments made to their account which resulted in a balance due.
CP 22E - Examination Adjustment Notice, Balance Due
Informs the recipient of an exam tax adjustment made resulting in a balace due of $5 or more .
CP 23 - Estimated Tax Discrepancy, Balance Due
Informs the recipient that there was a difference between the amount of Estimated Tax Payments claimed on their tax return and the amount posted to their account. This notice may also inform the recipient that we made corrections to their tax return. The notice reflects a balance due on the account.
CP 32A - We Want to Send You a New Refund Check
Explains why we are sending a new refund check, what needs to be done before we can send it, and what we'll do after the recipient replies to us.
CP 45 - Reduced Amount Applied to Estimated Tax
Informs the recipient that we weren't able to fully honor their request to apply a portion of their refund to the subsequent year's estimated tax, explains why, and shows the amount, if any, we did apply.
CP 49 - Overpaid Tax Applied to Other Taxes You Owe
Informs the recipient that we applied all or part of their refund to other taxes they owe, lists the amounts applied, and shows the amount, if any, to be refunded.
CP 54B - Problem With Name and Identifying Number
Informs the recipient that the name and identifying number used on their tax return don't match information we received from the Social Security Administration, gives examples of what might cause such a mismatch, and explains the steps the recipient needs to take to resolve it.
CP 54E - Problem With Name and Identifying Number
Informs the recipient that the name and identifying number used on their estimated tax payment don't match information we received from the Social Security Administration, gives examples of what might cause such a mismatch, and explains the steps the recipient needs to take to resolve it.
CP 54G - Problem With Name and Identifying Number
Informs the recipient that the name and identifying number used on their tax return don't match information we received from the Social Security Administration, gives examples of what might cause such a mismatch, and explains the steps the recipient needs to take to resolve it.
CP 54Q - Problem With Name and Identifying Number
Reminds the recipient that we're holding their refund because the name and identifying number used on their tax return don't match the information given to us by the Social Security Administration, gives examples of what might cause such a mismatch, and explains the steps the recipient needs to take to resolve it.
CP 57 - Notice of Insufficient Funds
Informs the recipient that we are charging a penalty for insufficient funds.
CP 60 - Notice of Credit Reversal
Informs the recipient that we've transferred a credit from their account leaving a balance due.
CP 75 - EIC Portion of Refund Delayed
Informs the recipient that we're delaying the EIC portion of their refund because we may examine parts of their tax return. The notice explains what areas we may examine and what steps we'll take next.
CP 75A - EIC Portion of Refund Delayed
Informs the recipient that we're delaying the EIC portion of their refund because we may examine the Form 8862, Information to Claim Earned Income Credit After Disallowance, filed with their tax return. The notice explains what steps we'll take next.
CP 75B - EIC Portion of Refund Delayed
Informs the recipient that we're delaying the EIC portion of their refund because we haven't received Form 8836, Qualifying Children Residency Statement, or are still reviewing it. The notice asks the recipient to send a copy of Form 8836 if they haven't already and explains what steps we'll take next.
CP 79 - Earned Income Credit Eligibility Requirement
Informs the recipient that they may need to complete an additional form to claim the credit if their Earned Income Credit (EIC) was disallowed or reduced by the IRS for any year after 1996.
CP 79A - Earned Income Credit Two Year Ban
Informs the recipient that they are banned from claiming the Earned Income Credit (EIC) for two years, and must complete an additional form to claim the EIC in the first year after the ban has been lifted.
CP 88 - Delinquent Return Refund Hold
Informs the recipient that we're holding their refund until they file their delinquent return or provide an acceptable explanation for not filing it.
CP 90 - Final Notice of Intent to Levy and Notice of Your Right to a Hearing
Informs the recipient that they still have a balance due on their account and that we intend to levy on certain assets unless they take appropriate action within 30 days.
CP 91 - Final Notice Before Levy on Social Security Benefits
Informs the recipient that they still have a balance due on their account and that we intend to levy on their Social Security benefits unless they take appropriate action within 30 days.
CP 501 - Reminder - Balance Due
Informs the recipient that they still have a balance due on their account and that we can file a Federal Tax Lien if they don't pay the entire amount within 10 days.
CP 503 - IMF 2nd Notice - Balance Due
Informs recipient that immediate action is required. No contact received from previous notice and a balance due is still pending.
CP 504 - Final Notice - Balance Due
Informs recipient when payment has not been made and this is the final notice that a levy will be place on certain assets.
CP 521 - - Balance Due
Notifies the recipient a payment is due and the penalties and interest that have accrued and will continue to accrue until the balance is paid in full.
CP 523 - Notice of Intent to Levy - You defaulted on Your Installment Agreement
Informs the recipient that they defaulted on their installment agreement, provides the reason for the default, and describes the actions we intend to take and what they can do to prevent us from taking those actions.
CP 2000 - We Are Proposing Changes to Your Tax Return
Informs the recipient that we're proposing changes to their tax return based on different information reported to us by their employers, banks, and other payers. The CP 2000 provides detailed information about the differences, the changes we propose, and what to do if they agree or disagree with the proposal
One of the ways we classify our notices is by the type of tax form they're about. We call notices we send about business-related tax forms such as Forms 941, 1065, and 1120, business filer notices. Notices we send about Form 1040, 1040A, 1040EZ, or any related schedules, forms, or other attachments are called individual filer notices and are listed elsewhere. If the business filer notice you have isn't listed below, check back often. We'll be adding more on a regular basis.
Here's a list of notices with detailed information available.
CP 101 - Math Error, Balance Due on Form 940
Informs the recipient of one or more changes made to their Form 940 or 940-EZ return during processing. The changes resulted in a balance due on the account.
CP 102 - Math Error, Balance Due on Form 941, 941SS, 943, or 945
Informs the recipient of one or more changes made to their Form 941, 941SS, 943, or 945 return during processing. The changes resulted in a balance due on the account.
CP 108 - Problem With Your Federal Tax Deposit
Informs the recipient we couldn't determine the tax type or tax period for which a federal tax deposit was intended and explains how we applied the payment.
CP 111 - Math Error, Overpayment on Form 940
Informs the recipient of one or more changes made to their Form 940 or 940-EZ tax return during processing. The changes resulted in an overpayment.
CP 112 - Math Error, Overpayment on Form 941, 941SS, 943, or 945
Informs the recipient of one or more changes made to their Form 941, 941SS, 943, or 945 tax return during processing. The changes resulted in an overpayment.
CP 138 - Overpayment Applied to Other Federal Taxes
Informs the recipient that we applied all or part of their overpayment to other taxes they owe.
CP 139 - You May Not Need to File Forms 940 or 941
Informs the recipient that they won't need to file Form 941 again unless they owe tax for the quarter.
CP 145 - Application of Overpayment Reduced
Informs the recipient that we weren't able to fully honor their request to apply a portion of their overpayment to the subsequent tax period, explains why, and shows the amount, if any, we did apply.
CP 160 - Reminder of Balance Due
Informs the recipient of a balance that is still due on their account.
CP 161 - Balance Due - Request for Payment or Notice of Unpaid Balance
Informs the recipient that there is an unpaid balance due on their account.
CP 165 - Penalty for Dishonored Check (Federal Tax Deposit)
Informs the recipient that a check they sent as payment for their federal tax deposit was returned unpaid by their bank.
CP 166 - EFT - Notice of Insufficient Funds Penalty
Informs the recipient insufficient funds were available for payment to cover their installment agreement..
CP 167 - We are Proposing a Federal Unemployment Tax Increase
Informs the recipient that we're proposing an increase to their federal unemployment tax because of information we received from their state agency.
CP 168 - We are Proposing a Federal Unemployment Tax Decrease
Informs the recipient that we're proposing a decrease to their federal unemployment tax because of information we received from their state agency.
CP 174 - Unemployment Tax Return Incomplete - Exempt Payments Not Explained
Informs the recipient that their explanation for exempt payments listed on their unemployment tax return was missing or unacceptable and requests an explanation.
CP 207 - Proposed FTD Penalty - Request for Correct Information
Asks the recipient to send us a completed Record of Federal Tax Liability (ROFTL).
CP 209 - EIN Assigned in Error
Informs the recipient that we erroneously assigned them more than one EIN.
CP 235 - Federal Tax Deposit Penalty Waived Due to Change in Deposit Requirements
Informs the recipient that we're waiving their FTD penalty because they meet the criteria for penalty relief.
CP 236 - Reminder of Your Semi-Weekly Deposit Requirements
Reminds the recipient that they're subject to semi-weekly deposits.
CP 238 - You Made One or More Late Federal Tax Deposits But We Didn't Charge You a Penalty
Informs the recipient that they made one or more late federal tax deposits and provides guidance on these deposits and how to make them.
CP 253 - Your Wage Reports Do Not Match the Amounts on Your Employment Tax Returns
Informs the recipient that the amounts they reported to the Social Security Administration on Form W-3 differ from the amounts they reported to us on Forms 941, 943, 945, or Schedule H.
CP 260 - Credit Adjustment
Informs the recipient that we removed one or more credits that had been erroneously applied to their account and that the account now has a balance due.
CP 261 - Notice of Acceptance as an S-Corporation
Informs the recipient that we've approved their election to be treated as an S-Corporation and to explain their obligations.
CP 267 - Account Overpaid - Possibly Misapplied Payments
Informs the recipient that they have more credit available on their account than they claimed on their tax return.
CP 268 - Correction and Overpayment Notice
Informs the recipient of one or more changes made to their return during processing and of a discrepancy in the total credits claimed on their return and the total credits available on their account.
CP 297 - Notice of Intent to Levy and Notice of Your Right to a Hearing
Informs the recipient of our intent to levy and of their right to receive appeals consideration.
CP 297A - Notice of Levy and Notice of Your Right to a Hearing
Informs the recipient of our intent to levy and of their right to receive appeals consideration.
CP 298 - Final Notice Before Levy on Social Security Benefits
Informs the recipient of our intent to levy on their social security benefits.
CP 521 - Installment Agreement Reminder Notice
Informs the recipient a payment is due and the penalties and interest that have accrued and will continue to accrue until the balance is paid in full