This study examines the association between free cash flow (FCF) and audit fees. The association is expected given Jensen’s argument that managers of low growth/high FCF firms engage in non-value-maximizing activities. These activities increase auditors’ assessments of inherent risk and, in turn, audit effort and fees. Jensen also argues debt mitigates the non-value-maximizing activities. Thus, the positive FCF/audit fees association is expected to be weaker for low growth firms with high debt than for similar firms with low debt. Regression results for a sample of low growth Hong Kong firms support these hypotheses.