What do you call a person who audits?

A person who audits is called an auditor, which is the most common and general term used in accounting, finance, and government contexts. An auditor is a professional who examines and verifies financial records, tax returns, business operations, or compliance with laws and standards to ensure accuracy and honesty. There are different types of auditors with more specific titles, an IRS auditor or IRS revenue agent is an employee of the Internal Revenue Service who audits tax returns, an internal auditor works inside a company to review its internal controls and processes, an external auditor works for an independent accounting firm to audit companies' financial statements for investors, a certified public accountant or CPA often performs audits, a forensic auditor investigates fraud and financial crimes, a compliance auditor checks adherence to regulations, and a quality auditor examines manufacturing or service quality standards. In general business language you might also hear the term examiner or inspector for someone who audits operations. The verb form is to audit, meaning to conduct an official examination, and the person doing it is always called an auditor regardless of industry.