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

Caution:

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

If the TC 971 AC 506 is not input prior to cycle 47 of the processing year, an IP PIN/CP01A may be delayed for the upcoming filing season. Between cycle 47 and January 1 of the following year, IP PIN information must be provided in a closing letter. Barring any unforeseen circumstances, this additional information will not be required in closing letters issued between January 1 and cycle 47. SERP Alerts should be monitored for information related to IP PINs that may impact this timeframe. Use the appropriate special paragraphs in Exhibit 25.23.4-25, Closing Letter Paragraph Selections, in addition to the paragraphs selected for your closing Letter 4674C.

Be sure any necessary letters are being sent to the correct address. The Correspondex letter system will default to the address of record (CC ENMOD) which may or may not be the correct address. Override the address of record, when appropriate.

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▸Contents — Internal Revenue Manual Part 25. Special Topics

Internal Revenue Manual Part 25. Special Topics

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