4 - Erroneous AbatementThe timely filed TC 150 return for TY 2018 is determined to be a nullity. The valid taxpayer filed a return reporting tax of $.00 and withholding of $2,500 which posted as a TC 976. Form 14039 is included with the return. The ASED for the valid return is expired. Based on the original return, the account shows TC 150 tax of $5,000, and withholding of $6,000. A CP 2000 proposing a tax increase of $2,000 based on unreported income is issued to the valid taxpayer’s last known

Reminder:

Internal Revenue Manual Part 25. Special Topics · 2026-10-03 edition · updated 2026-10-04 · United States

IP PIN issues must be addressed in ALL closing letters to the taxpayer(s).

Case Scenario

Special Paragraph(s)

(1) For claims processed up to and including cycle 46:Automatic Enrollment: Taxpayers who are victims of tax-related identity theft will be placed into the IP PIN Program automatically when a TC 971 AC 501/506 is input.

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▸Contents — Internal Revenue Manual Part 25. Special Topics

Internal Revenue Manual Part 25. Special Topics

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