Notice pages help readers identify the letter type, locate the response date, and decide what records to gather first.
Start with the page closest to the letter or problem in front of you. Then compare it with a form page, a checklist, and an official source before deciding what to send.
For large balances, payroll tax, levy action, Tax Court deadlines, or possible criminal questions, use these pages to prepare for professional advice rather than to handle the matter alone.
How to read a CP14 Balance Due issue, separate payment questions from disputes, and prepare a cleaner response file.
How to read a CP501 Reminder Notice issue, separate payment questions from disputes, and prepare a cleaner response file.
How to read a CP503 Second Reminder issue, separate payment questions from disputes, and prepare a cleaner response file.
How to read a CP504 Intent to Levy issue, separate payment questions from disputes, and prepare a cleaner response file.
How to read a LT11 Final Notice issue, separate payment questions from disputes, and prepare a cleaner response file.
How to read a Letter 1058 Final Notice issue, separate payment questions from disputes, and prepare a cleaner response file.
How to read a CP90 Final Notice issue, separate payment questions from disputes, and prepare a cleaner response file.
How to read a CP91 Social Security Levy issue, separate payment questions from disputes, and prepare a cleaner response file.
How to read a CP2000 Underreported Income issue, separate payment questions from disputes, and prepare a cleaner response file.
How to read a CP11 Math Error Balance issue, separate payment questions from disputes, and prepare a cleaner response file.
How to read a CP12 Refund Adjustment issue, separate payment questions from disputes, and prepare a cleaner response file.
How to read a CP22A Tax Change issue, separate payment questions from disputes, and prepare a cleaner response file.
How to read a CP23 Estimated Tax issue, separate payment questions from disputes, and prepare a cleaner response file.
How to read a CP49 Refund Applied issue, separate payment questions from disputes, and prepare a cleaner response file.
How to read a CP71 Annual Balance issue, separate payment questions from disputes, and prepare a cleaner response file.
How to read a CP59 Unfiled Return issue, separate payment questions from disputes, and prepare a cleaner response file.
How to read a CP518 Final Return Request issue, separate payment questions from disputes, and prepare a cleaner response file.
How to read a CP2566 Substitute Return issue, separate payment questions from disputes, and prepare a cleaner response file.
How to read a Letter 3219 Deficiency Notice issue, separate payment questions from disputes, and prepare a cleaner response file.
How to read a Letter 525 Examination Report issue, separate payment questions from disputes, and prepare a cleaner response file.
How to read a Letter 566 Audit Start issue, separate payment questions from disputes, and prepare a cleaner response file.
How to read a Letter 2205 Field Audit issue, separate payment questions from disputes, and prepare a cleaner response file.
How to read a Letter 3172 Federal Tax Lien issue, separate payment questions from disputes, and prepare a cleaner response file.
How to read a Form 668 W Wage Levy issue, separate payment questions from disputes, and prepare a cleaner response file.
How to read a Form 668 A Bank Levy issue, separate payment questions from disputes, and prepare a cleaner response file.
How to read a Form 668 Y Tax Lien issue, separate payment questions from disputes, and prepare a cleaner response file.
How to read a Letter 2800C Withholding issue, separate payment questions from disputes, and prepare a cleaner response file.
How to read a Letter 12C Missing Information issue, separate payment questions from disputes, and prepare a cleaner response file.
How to read a Letter 4883C Identity Verification issue, separate payment questions from disputes, and prepare a cleaner response file.
How to read a Letter 5071C Identity Verification issue, separate payment questions from disputes, and prepare a cleaner response file.
How to read a Letter 6331C Collection Contact issue, separate payment questions from disputes, and prepare a cleaner response file.
How to read a Letter 692 Proposed Adjustment issue, separate payment questions from disputes, and prepare a cleaner response file.
How to read a Letter 915 Exam No Change issue, separate payment questions from disputes, and prepare a cleaner response file.
How to read a Letter 950 Thirty Day Letter issue, separate payment questions from disputes, and prepare a cleaner response file.
How to read a Notice of Deficiency issue, separate payment questions from disputes, and prepare a cleaner response file.
How to read a Notice of Federal Tax Lien issue, separate payment questions from disputes, and prepare a cleaner response file.
How to read a Notice of Levy issue, separate payment questions from disputes, and prepare a cleaner response file.
How to use this section
- Keep the notice number and response date visible while reading.
- Separate amount disputes from ability-to-pay issues.
- Gather records before making broad explanations.
- Verify current forms and instructions on an official IRS page.
Official places to verify details
IRS rules, form instructions, mailing addresses, program terms, and deadlines can change. Use these official pages to check the current version before mailing forms, making payments, or letting a response date pass.