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20.2.3.1
(11-18-2008)
PINEX Overview
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When interest is computed by Master File, the Penalty and Interest Notice and Explanation (PINEX) Command Code (CC) may be
used to explain the debit or credit interest computations when a taxpayer questions those calculations. If the Master File
module is restricted, CC PINEX cannot be used. A transcript (e.g., TXMOD, IMFOL, BMFOL, MFTRA), will reflect a - I Freeze
or Transaction Code (TC) 340/341. See Document 6209 Section 8 for further explanations.
20.2.3.1.1
(11-18-2008)
PINEX Computations
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PINEX computations are IDRS calculations of penalties and interest using both posted and pending transactions. The specific
tax module requested must be on the IDRS TIF (Taxpayer Information File) database in order for PINEX to return a calculation
and at least one unreversed penalty or interest transaction must be posted. PINEX is not available for MFT's 13, 40, 42, 46,
55, 68, and 74, and for tax periods 198212 and prior.
Caution:
Prior to mailing any notices, ensure only the last four digits of the taxpayer's SSN is reflected in the document being mailed
(per OMB Memorandum M-07-16).
See IRM 2.4.43, Command Code PINEX, for instructions to:
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