deficiency notice
noun[C]
USukus(alsonotice of deficiency)TAX
anofficialdocumentsaying that theamountoftaxrecordedin someone'sfinancialrecordsis less than thetaxtheyactuallyowe:
Thecourttrimmedthetotalof his untaxedfraudulentincometo $31,500 from the $53,000listedby theIRSinitsdeficiencynotice.