Topic: Audit Assistant IRS Notice Listing

Below is a list of common IRS Notices. The notice number will appear on page 1 in the upper right-hand corner. Click on the notice number below that matches the one on your notice and you will be provided information on what to do when you receive this type of notice along with a sample copy of the notice.

IRS Notices

  • CP 09 - Earned Income Credit You May Be Entitled To
  • CP 10 - Changes to Tax Return, Reduced Amount Applied Toward Payment of Your Estimated Tax
  • CP 11 - Changes to Tax Return, Balance Due
  • CP 11A - Changes to Tax Return and EIC, Balance Due
  • CP 12 - Changes to Tax Return, Overpayment
  • CP 13/CP 13A - Changes to Tax Return, No Refund and No Balance Due
  • CP 14 - Balance Due, No Math Error
  • CP 16 - Changes to Tax Return, Overpayment Applied to Balance Due
  • CP 21B - Data Processing Adjustment Notice, Overpayment of $1 or More
  • CP 22A - Data Processing Adjustment Notice, Balance Due of $5 or More
  • CP 22E - Examination Adjustment Notice, Balance Due
  • CP 23 - Estimated Tax Payment Discrepancy, Balance Due
  • CP 32A - We Want to Send You a New Refund Check
  • CP 45 - Reduced Amount Applied Toward Payment of Your Estimated Tax
  • CP 49 - Overpaid Taxes Applied to Other Taxes You Owe
  • CP 54B/CP 54E/CP 54G/CP 54Q - Problem with Name and Identifying Number
  • CP 59 - First Notice Request for Your Tax Return
  • CP 75/CP 75A/CP 75B - EIC Portion of the Refund Delayed
  • CP 79 - Earned Income Credit Eligibility Requirement
  • CP 79A - Earned Income Credit Two Year Ban
  • CP 90/CP 297 - Final Notice - Notice of Intent to Levy and Notice of Your Right to a Hearing
  • CP 91/CP 298 - Final Notice Before Levy on Social Security Benefits
  • CP 161 - Balance Due - Request for Payment or Notice of Unpaid Balance
  • CP 501 - Balance Due Reminder Notice
  • CP 504 - Urgent Notice - Balance Due
  • CP 523 - Notice of Intent to Levy - You Defaulted on Your Installment Agreement
  • CP 2000 - Notice of Underreported Income
  • Letter 531 - Notice of Deficiency
  • Letter 525 - Examination Report
  • Letter 12C - Information Request