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Tax Problems and Solutions Handbook

LT3172: Notice of Federal Tax Lien and Right to a Hearing under IRC §6320

Notifies taxpayers that a Notice of Federal Tax Lien has been filed and their right to request a Collection Due Process Hearing within 30 days

Updates: July 14, 2025

LT16: Account Has Been Assigned for Collection Enforcement

Notifies taxpayers that they are assigned to IRS Collection for enforcement (lien and levy)

Updated: July 14, 2025

LT11: Final Notice of Intent to Levy (Automated Collection System)

Notifies taxpayers that they are subject to levy in 30 days and their right to request a Collection Due Process Hearing within 30 days

Updated: July 14, 2025

CP523: Notice of Intent to Levy and Intent to Terminate Your Installment Agreement

Notifies taxpayers that they are in default of their installment agreement

Updated: July 14, 2025

CP521: Monthly Installment Agreement Reminder

Notifies taxpayers of monthly installment agreement payment due (with payment voucher)

Updated: July 14, 2025

CP508R: Reversal of Notice of Certification of Your Seriously Delinquent Federal Tax Debt to the State Department

Notifies taxpayers that they are in good standing and not subject to passport restrictions

Updated: July 10, 2025

CP508C: Notice of Certification of Your Seriously Delinquent Federal Tax Debt to the State Department

Notifies taxpayers that they are subject to passport restrictions on past tax debt owed

Updated: July 14, 2025

CP504: Notice of Intent to Levy

Fourth balance due notice; notice of intent to levy state income tax refund

Updated: July 14, 2025