UNDERTAXING is a playable word

undertax Scrabble® Dictionary

verb
undertaxed, undertaxing, undertaxes
to tax less than the usual amount
647 Playable Words can be made from "UNDERTAXING"
   2-Letter Words (30 found)
   3-Letter Words (103 found)
   9-Letter Words (3 found)
   10-Letter Words (2 found)
   11-Letter Words (1 found)