ABSTRACTBased on a belief revision model recently proposed by Hogarth and Einhorn [35], the present research investigates the effects of information presentation orders on tax professionals’ belief revisions about ambiguous tax treatments. Also examined in the study are the impacts of the tax professionals’ experience and the client's tax preference on the belief revision. The results show that the experienced tax professionals’ belief revisions are affected by the presentation order manipulations, but unaffected by the client preference manipulations. In contrast, the inexperienced tax professionals’ belief revisions display a reverse