Code 640: advance payment of determined deficiency or underreporter proposal all:.

Credit (PJ) I/B Advance Payment of Determined Deficiency or Underreporter Proposal All: 17, 18, 19, 24, 58, I/B: 34 Credits the tax module with an advance payment of a determined deficiency. BMF/IMF: Overpayment interest is never allowed on TC 640 (blocked 990-999) “Cash Bonds” which are in excess of the audit deficiency to which it is applied. Overpayment interest is not allowed even if the deficiency is subsequently abated in whole or in part. Also refer to Revenue Procedure 2005-18 for more information. Tax module frozen from refunding, offsetting out or credit elect when TC 640 posted and no TC 300 present or TC 300 has disposal code 7 or 11 or the 23C date of TC 300 (not disposal code 7 or 11) is earlier than transaction date of TC 640. Freeze is released when TC 640s are reversed, posting of TC 300 (not disposal code 7 or 11), TC 29X blocking series 500-519, 540-589, 600-619 or 640-679, or module balance becomes zero or debit. (MFT 55 640 freeze released when TC 640s are reversed or total module balance becomes zero or debit). Module is frozen from offsetting in when TC 640 posts and there is not a TC 300 with a 23C date prior to the transaction date of the TC 640. Freeze is released when TC 640s are reversed, posting of TC 29X (except PC 6 or 7 or B.S. 500-519/600-619) or 30X for an amount, module becomes zero or debit balance, TC 846/706/826/896/736/340/341/780 or 856 posts. Also used to post URP CP-2000/Stat. Notice Payments, etc.