Inland Revenue Auditors: Permanent, internal civil servants within the FBR who are tasked with auditing tax returns and corporate accounts. Third-Party/Contract Auditors: In recent years, the FBR has expanded its audit capacity by hiring external, third-party auditors (often Chartered Accountants or ACCA professionals) to conduct in-depth reviews.

Key Responsibilities:

Ensuring taxpayers comply with the Income Tax Ordinance (2001), Sales Tax Act (1990), and Federal Excise Act. Investigating discrepancies, identifying high-risk cases using Compliance Risk Management (CRM) tools, and recovering state revenue leakages.