Internal auditing is not a high-profile position, but it is a vital part of company's infrastructure, in order to ensure smooth operations and compliance with laws and regulations.

As of 2017, the job market is bright with continued healthy demand for the profession in most parts of the country for the next several years, making internal auditing an attractive career choice for those with a natural inclination toward math.

Job Description

The role of the internal auditor is that of an impartial watchdog, continuously making sure the company is in compliance with laws and regulations, as well as that departments and employees follow proper procedures. An internal auditor audits fiscal statements, expense reports, inventory and pretty much anything else that needs to be impeccable in case of an external audit by the Securities and Exchange Commission (SEC) or other governmental regulatory body.

Another aspect of the job is asset protection through risk management. These risks can range from fraud and legal exposure to internal policy lapses and mismanagement. Internal auditors create risk assessments for each department, using a master plan with a set schedule down to the most minuscule details to ensure nothing falls by the wayside. They build checklists and supervise audit work schedules. It also falls on the internal auditor to continuously check the internal accounting procedures and operating systems.

The internal auditor is not personally engaged in any department and is, thus, expected to approach each area impartially and objectively. In publicly traded companies, the CEO is legally required to have an internal auditor reporting directly to him.


The 2017 national median salary is $56,902, according to PayScale. Internal auditors report receiving bonuses that can reach upward of $7,000 and profit-sharing programs paying close to $6,000 annually.

The salary for internal auditors varies greatly depending on location and experience. The coastal areas such as New York City, Los Angeles, Seattle, Washington D.C. and Houston have significantly higher average salaries across the board, while inland locations generally trend lower. One exception to the rule is Jacksonville, Florida, where salaries are reportedly 11% below the national average. The starting salary for entry-level auditors typically ranges between $41,000 and $45,000, increasing fairly rapidly with experience. 


A bachelor's degree in accounting or finance is the most common job requirement. In rare cases, people with lower education have earned the position by starting out in a junior accounting position and growing into the role through experience. These people are unable to earn Certified Public Accountant (CPA) or similar accreditations, usually making the role of internal auditor as high as they get in the corporate hierarchy. Master's and doctorate degrees are mostly found among those aiming to move into management. Business- and math-related fields dominate this type of degree.


Many internal auditors find that achieving CPA status greatly helps their careers and salary prospects. It is also a requirement in order to file reports with the SEC. The CPA requirements vary by state, but the common minimum requirement is a bachelor's degree, at least one year of experience working under the guidance of a CPA and passing the grueling CPA exam.

The Certified Internal Auditor (CIA) designation is granted by the Institute of Internal Auditors (IIA) after passing a four-part test. The CIA also requires a bachelor's degree and two years working experience as an internal auditor.

The IIA also offers the following specialized accreditations: Certified in Control Self-Assessment (CCSA), Certified Government Auditing Professional (CGAP) and Certified Financial Services Auditor (CFSA). These industry-specific certifications can greatly improve employability in these fields.

Those wishing to specialize in auditing software can pursue the Certified Information Systems Auditor (CISA) accreditation offered by the nonprofit organization ISACA.

The Certified Management Accountant (CMA) designation is conferred by the Institute of Management Accountants (IMA) and focuses on financial statement analysis, valuation and capital structure.


The most important quality of the internal auditor is great attention to detail. A significant part of the job is meticulously following detailed checklists and spending hours upon hours scanning vast reams of numbers to catch anything that stands out. Having a natural head for math is an obvious advantage in this task.

Integrity is another must for the job, as the company and its owners rely on the auditor to catch everything suspicious or amiss. The auditor's primary allegiance is to hard facts and numbers rather than a manager.

Sound judgment and common sense are of great importance, as it is the auditor's job to find a healthy balance between risk and flexibility. The ability to understand the underlying business processes makes the control of policies a fluid part of the workflow rather than a bottleneck.

The ability to communicate clearly is also important. Despite the job being largely centered on numbers, the auditor also needs to communicate the findings and conclusions effectively. Certain diplomacy and people skills come in handy when implementing new business controls and procedures. A good grasp of generally accepted accounting principles (GAAP) and Sarbanes-Oxley (SOX) is also a preferable skill.

Career Path

After some years as an internal auditor, the natural, and most common, next step is to become a senior internal auditor. This position has a median salary of $75,654 and shifts the focus more onto policy creation rather than policy enforcement.

The next step is internal auditing manager with a median salary of $97,589. This job focuses on managing the audit team and to act as liaison with external auditors. Larger firms also offer the position of senior auditing manager, at a median salary of $87,453, or internal audit director, at a median salary of $126,656. The final step is either partner or CFO.

Another path from internal auditor is to first make a largely lateral move to senior accountant, at a median salary of $65,360, and then go for the position of financial controller, at a median salary of $80,074, followed by the CFO position. Even at later stages in a person's career, the field has a fairly even gender balance with a slight majority of women at the entry level.

Want to learn how to invest?

Get a free 10 week email series that will teach you how to start investing.

Delivered twice a week, straight to your inbox.