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

Exception:

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

Employees who do not have a six-digit extension will use the extension of their work leader when issuing the letter.

IDT skilled employees must be available and answer incoming calls to their assigned extensions when they are not providing assistance on a toll-free line. IDT skilled employees will sign on to their IDTVA (IDT/RPM) extensions using idle code INVEN1 when they are working cases.

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▸Contents — Internal Revenue Manual Part 25. Special Topics

Internal Revenue Manual Part 25. Special Topics

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