Team science research in the organizational behavior (OB) literature shows that successful teams must elicit “voice” from its members, i.e., the willingness to speak up and share information with the team. We propose a framework that recognizes when leaders exhibit their own “voice” behaviors, it creates psychological safety for the team – i.e., it allows team members to feel safe and encouraged to speak up about important audit matters. Analysis of data from 127 audit engagement teams with 754 auditors indicates the following. First, there is a positive and dominant effect on an audit team’s psychological safety (and ultimately on team voice climate and team performance) when managers engage in voice role modeling behavior. However, when the manager is also seen to engage in negative counterproductive behaviors, such as taking “short cuts” during the audit, the positive effects of his / her voice modeling behaviors are lost. This finding shows the importance of avoiding “mixed messages” from the manager, as this leads audit team members to question whether it is safe to speak up. Second, our findings reveal that when the partner and manger differ in emphasizing voice behaviors (one high, one low), these mixed (inconsistent) messages did not diminish perceived team psychological safety. Thus, if at least one leader (either the partner or the manager) is enacting high levels of voice role modeling behavior, the team still has high psychological safety and team voice climate. The results emphasize the need for leadership training to help partners and managers demonstrate, through their own “voice” leadership behaviors, that there is an environment of psychological safety that enables voice for the audit team. However inconsistent signals from team leaders can potentially compromise the team’s sense of psychological safety.