CISA Certification Overview
Reviewed by Fully Compliance editorial team
CISA — Certified Information Systems Auditor — is the standard credential for IT auditors, requiring five years of documented IT audit experience and passing an exam with a 40-50% pass rate. CISA is preferred or required by banking regulators, healthcare compliance organizations, and financial services firms, carrying salary premiums of $10,000-$25,000 driven by regulatory preference that makes the credential's market value unusually stable across economic cycles.
If you're considering a career in IT audit, if your organization requires auditors to hold CISA, or if you're wondering whether CISA, CISSP, or CISM is the right fit, you need to understand what CISA actually certifies. Unlike CISSP, which covers broad security, or CISM, which focuses on security management, CISA is specifically focused on auditing — evaluating whether organizations have adequate controls, whether controls work as designed, and whether they're aligned with frameworks and regulations.
CISA stands for Certified Information Systems Auditor, created by ISACA. It's designed for people whose job is evaluating and testing controls from an auditor's perspective, not for security professionals building controls.
CISA Requires Actual IT Audit Experience — Not General Security Work
ISACA reports over 165,000 CISA holders globally, making it the most widely held IT audit credential worldwide. CISA requires five years of IT audit experience — not five years of security work generally, and not five years of general IT work. Five years of audit work specifically. If you've been in internal audit, external audit, compliance auditing, or regulatory audit roles, you're on track. If you've been in security operations or security engineering, you need to transition into audit first.
The five-year requirement can be reduced to three years with a relevant advanced degree. The exam tests IT audit fundamentals, governance and management of IT, information systems acquisition and development, operations and maintenance, and protection of information assets. The exam assumes you understand audit methodology, frameworks like COSO and COBIT, and how to evaluate controls from an auditor's perspective.
The pass rate is roughly 40 to 50 percent. Study time is four to six months for experienced auditors. The exam costs $550 to $750. CISA requires 40 continuing education credits annually — lighter than CISSP's 120 every three years.
CISA positions you for IT audit roles: internal auditor, external auditor, compliance auditor, lead auditor. The career progression: junior auditor, senior auditor, audit manager, audit director, chief audit executive. The credential is particularly valued in regulated industries where external audits are common — finance, healthcare, insurance.
Regulators and audit firms actively prefer CISA. Banking regulators, healthcare compliance organizations, and financial services firms expect auditors to hold it. This regulatory preference translates to real career advantage and salary premiums of $10,000 to $25,000 above non-credentialed peers. The market value is more stable than some certifications because it's driven by regulatory preference, not just market sentiment.
CISSP is fundamentally different — it's for security leaders who design and implement controls. CISA is for auditors who evaluate and test controls. Budget four to six months of study, $550 to $750 for the exam, $300 to $1,500 for study materials, and $2,000 to $4,000 for formal courses. Total out-of-pocket: $1,000 to $3,000.
You're a good candidate for CISA if you have five years of IT audit experience, work in a regulated industry, or want to formalize audit competency with a credential carrying regulatory weight. Skip CISA if you're not interested in audit as a career, your background is security rather than audit, or you're early in your career without audit roles.
Frequently Asked Questions
Can I substitute security experience for the CISA audit experience requirement?
Only partially. ISACA allows substituting up to two years of general information security or IT experience for audit experience, but at least three years of actual IT audit work is required. The credential explicitly values audit methodology and control testing experience, not just security knowledge.
How does CISA compare to CIA (Certified Internal Auditor)?
CIA is the broader internal audit credential covering all audit disciplines — financial, operational, compliance. CISA is specifically IT-focused. If your specialization is IT audit, CISA is stronger and more recognized in technology-related audit work. If you're a general internal auditor needing some IT controls knowledge, CIA is more broadly applicable. Some auditors hold both.
Is CISA valuable outside of audit roles?
CISA carries limited value outside audit. It's designed for and recognized by the audit community. If you're in compliance, GRC, or security management roles, CISM or CRISC are more relevant. CISA's value is concentrated in audit — if that's not your career direction, the investment doesn't make sense.
What industries value CISA the most?
Financial services (banking, insurance, investment management), healthcare, government, and public accounting firms. These are heavily regulated industries where external IT audits are frequent and regulators explicitly expect auditors to hold CISA. Auditors in these industries see the strongest salary premiums and the most consistent demand for the credential.