What does my IRS letter mean?
Type the code from the top-right corner of your IRS notice (like CP2000 or LT11) and get a plain-English answer: what it means, your deadline, and exactly what to do next.
Income Discrepancy notices
- CP2000Proposed Changes to Your Return (Underreported Income)Urgent
- CP2501Income Discrepancy — Initial InquiryImportant
- CP3219AStatutory Notice of Deficiency (90-Day Letter)Critical
Balance Due notices
- CP14Balance Due — First NoticeAttention
- CP501Reminder — Balance DueAttention
- CP503Second Reminder — Immediate Action RequiredImportant
- CP71CAnnual Reminder of Balance DueAttention
Collections / Levy notices
- CP504Intent to Levy — State Tax RefundUrgent
- LT11Final Notice of Intent to Levy & Right to a HearingCritical
- CP90Final Notice of Intent to Levy (Certified)Critical
- CP523Installment Agreement Default — Intent to TerminateUrgent
- CP508CPassport Certification — Seriously Delinquent Tax DebtUrgent
- CP40Account Assigned to Private Collection AgencyAttention
- LETTER-3172Notice of Federal Tax Lien FiledCritical
- CP91Intent to Levy Social Security BenefitsCritical
Refund notices
- CP49Refund Applied to Other Taxes OwedInformational
- CP05Refund Hold — Return Under ReviewAttention
- CP05AReview Follow-Up — Documents RequiredImportant
Return Adjustment notices
- CP12Math Error Correction — Refund AdjustedInformational
- CP11Math Error Correction — Balance DueAttention
- CP23Estimated Payment Discrepancy — Balance DueAttention
- CP22AReturn Changed Per Your Request — Balance DueAttention