Accounting estimates are susceptible to managerial errors and bias, thereby generating audit risk. Quantifying and understanding the determinants and consequences of auditors’ influence on clients’ accounting estimates is therefore important. Using a novel econometric technique, we estimate...

We propose that auditor-provided tax services (tax NAS) improve internal control quality by accelerating audit firm awareness of transactions material to the financial statements. Using data from 2004 to 2012, we find robust evidence that companies purchasing tax NAS are significantly less...