UNDERTAXED is a playable word

undertax Scrabble® Dictionary

verb
undertaxed, undertaxing, undertaxes
to tax less than the usual amount
287 Playable Words can be made from "UNDERTAXED"
   2-Letter Words (22 found)
   8-Letter Words (6 found)
   9-Letter Words (2 found)
   10-Letter Words (1 found)