CP 09 - Earned Income Credit You May Be Entitled To From IRS
CP 10 - Changes to Tax Return, Reduced Amount Applied to Next Year's Estimated Tax
CP 11 - Changes to Tax Return, Balance Due
CP 11A - Changes to Tax Return and Earned Income Credit, Balance Due
CP 12 - Changes to Tax Return, Overpayment
CP 13 - Changes to Tax Return, No Refund and No Balance Due
CP 13A - Changes to Tax Return and Earned Income Credit, No Refund and No Balance Due
CP 14 - Balance Due
CP 16 - Changes to Tax Return, Resulting Overpayment Applied to a 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
CP 23 - Estimated Tax Discrepancy, Balance Due
CP 32A - We Want to Send You a New Refund Check
CP 45 - Reduced Amount Applied to Estimated Tax
CP 49 - Overpaid Tax Applied to Other Taxes You Owe
CP 54 and CP 54B - Problem with Name and Identifying Number
CP 54E - Problem with Name and Identifying Number
CP 54Q - Problem with Name and Identifying Number
CP 57 - Notice of Insufficient Funds
CP 60 - Notice of Credit Reversal
CP 75 - EIC Portion of Refund Delayed
CP 75A - EIC Portion of Refund Delayed
CP 75B - EIC Portion of Refund Delayed
CP 79 - Earned Income Credit Eligibility Requirement
CP 79A - Earned Income Credit Two Year Ban
CP 88 - Delinquent Return Refund Hold
CP 90 - Final Notice of Intent to Levy and Notice of Your Right to a Hearing
CP 91 - Final Notice before Levy on Social Security Benefits
CP 501 - Reminder - Balance Due
CP 503 IMF 2nd Notice - Balance Due
CP 504 Final Notice - Balance Due
CP 521 - Installment Agreement Reminder Notice
CP 523 - Notice of Intent to Levy - You defaulted on Your Installment Agreement
CP 2000 - We Are Proposing Changes to Your Tax Return
For additional information about IRS Notices, you can visit
http://www.google.com/search?client=safari&rls=en&q=individual+filer+notices&ie=UTF-8&oe=UTF-8

Tax Problem Resources 

