This research examines how experience and missing information affect judgments of tax return preparers. Tax return preparers may often be faced with the problem of incomplete information, and their responses to this problem may be conditioned by whether or not they recognize information is missing. Based on the Holland et al.'s cognitive theory of induction as applied to tax judgment by Marchant et al., it was hypothesized that experienced tax preparers would correctly classify more items as to their relevance to a specific tax issue than novice tax preparers. Additionally, it was hypothesized that the strength of recommendations of tax preparers who had no relevant information missing would be greater than the strength of recommendations of tax preparers who had relevant information missing and were prompted that information was missing. Lastly, it was hypothesized that prompting that relevant information was missing would have a greater effect on the strength of recommendations of tax return preparers with lesser specific experience than it would on the strength of recommendations of tax return preparers with greater specific experience. The results suggest that experienced tax preparers do recognize the relevance of information to a greater degree than novice tax preparers. There was no significant difference, however, in the strengths of recommendation of tax preparers who had no missing information and those who were prompted that information was missing. There was a significant difference in the strengths of recommendations of tax preparers with lesser specific experience who had been prompted that relevant information was missing and those who had not been prompted that relevant information was missing. Among tax preparers with greater specific experience, however, there was no significant difference between the two groups. These results suggest that tax preparers with greater specific experience recognized that relevant information was missing without being prompted, while tax return preparers with lesser specific experience did not.