What Does the IRS Notice Numbers Mean?

• 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 BanM

• 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

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