This study aimed to investigate how independent auditors and users of audit services in Iran perceive the factors affecting audit quality. The researchers administered a questionnaire to 47 auditors and 47 users of services to assess how they view the impact of auditing firm characteristics and client characteristics on audit quality. The results showed that both groups believe both the auditing firm features and the client's characteristics influence audit quality. However, each group perceived the other group's features to be more important to audit quality based on their roles. Auditors viewed client features as more important, while users saw auditing firm characteristics as more determinant of quality. The researchers tested these differences in perceptions through two hypotheses.