Financial accounting standards increasingly require fair value measurements. I experimentally examine how uncertainty affects auditors’ adjustment decisions when evaluating fair values. I manipulate two types of uncertainty, input subjectivity and outcome imprecision , and one reporting choice, supplemental disclosure . I find that auditors are most likely to require adjustments when fair values contain both more input subjectivity and more outcome imprecision, but that this likelihood diminishes when clients supplement recognized fair values with additional disclosure. Thus, consistent with moral licensing, I find that auditors tolerate greater potential misstatement in the financial statements when clients provide disclosure, suggesting that the SEC's preference for supplemental disclosure may have the unintended consequence of affecting fair values recognized in the body of the financial statements. I also provide evidence that auditors determine adjustment size by comparing recorded fair value to the nearest bound, rather than the midpoint, of the auditors’ own range estimate, consistent with strict application of auditing standards.

Regulators now require auditors to provide information about how they evaluate complex estimates. Because users encounter this auditor-provided information alongside management-provided information, we jointly examine the value relevance of these disclosures. We also examine whether visual cues in audit reports influence how nonprofessional investors use these disclosures. We find that disclosures from managers and auditors provide different value-relevant information about the same underlying issue. While users struggle to weight fully narrative auditor disclosures in their valuation judgments without corresponding management disclosures, visual cues facilitate their weighting of information about the audit. Specifically, users take increased price protection when auditor disclosures also include visual cues. However, consistent with market signaling theory, corresponding voluntary disclosures from management attenuate this price protection. This suggests management can mitigate negative valuation effects that may arise from auditor disclosures, and implies that visual cues in audit reports can prompt managers to increase disclosure transparency. Data Availability: Contact the authors.