How to Become an Internal Auditor: A Complete Roadmap

An Internal Auditor independently checks that an organization's controls, processes, and risk management actually work — a stable, respected career that increasingly extends into IT and AI audit.

What the role does

• Plans and executes audits of controls and processes
• Tests control effectiveness and gathers evidence
• Documents findings and tracks remediation
• Supports SOX, regulatory, and IT/AI audits

Foundations

The IIA's audit methodology, controls frameworks (COSO), and — for the IT/AI track — ISO 27001, NIST, and the NIST AI RMF.

Certifications

CIA (Certified Internal Auditor) is the profession's standard; CISA for the IT-audit track; add ISACA's AI-audit credential to move into AI assurance. Full credential details and salary data are in the GRC Certifications Guide.

The path

1. Learn audit methodology — the IIA standards and COSO.
2. Practice — walk through a controls test and workpaper.
3. Certify — CIA, then CISA for IT audit.
4. Specialize — IT audit, then AI/algorithm audit.

Step — Apply

Browse live Internal Auditor roles on GRC Careers. Related titles: Internal Auditor, IT Auditor, Senior Auditor, Audit Associate.