Letter 5664: FTD Alert Field contact Letter- Revenue Officer visited and follow up
Updated: July 15, 2025
Template Category: Notices
Letter 3164-A: Third-Party Contact Letter
Updated: July 15, 2025
Letter 1155: Transmittal Letter for Agreement, Trust Fund Recovery Penalty Assessment Form 2751, Proposed Assessment of Trust Fund Recovery Penalty
Updated: July 15, 2025
Letter 1154: Letter forwarding TFRP case to IRS Appeals
Updated: July 15, 2025
Letter 1153: Notification of Proposed TFRP Assessment (60-day letter)
Updated: July 15, 2025
Letter 903: You Haven’t Deposited Federal Employment Taxes (FTD Alert)
Updated: July 15, 2025
CP15B: Balance Due- Civil Trust Fund Penalty Assessment
Updated: July 15, 2025
Doc. 11734: IRS Transaction Codes Pocket Guide
Common account transcript transaction code explanations.
Latest Version: 5/2012
Updated: July 15, 2025
Letter 5073C: Acknowledgment Letter for Identity Theft Documentation
Acknowledging receipt of the Form 14039 within 30 days of the IRS received date.
Updated: July 15, 2025
Letter 5071C: Potential Identity Theft during Original Processing with Online Option
Taxpayer Protection Program notification to a taxpayer to verify their return online (IRS Identity Verification Service) or by phone. Advises taxpayers that a return was received with their name and SSN and that to protect them from identity theft, their identity needs to be verified before processing the return. Taxpayers receiving this letter have the option to authenticate their identity online using the IRS’s Identity Verification Services website or to call the TPP telephone line.
Updated: July 15, 2025