Auto Apply to hundreds of jobs in a few hours

Español

日本語

Internal Auditor skills: what to learn first, and what can wait

Internal audit asks for a different toolkit than audit at a firm, because your client is your own employer and the scope runs well past the financial statements. You'll test a warehouse cycle count one month and a user access review the next. Learn the control basics first, then the data and interviewing skills, and save the audit committee polish for later.

177 open jobs

Step one

Gets you the interview

COSO and the idea of a key controlEvery SOX program you'll join is built on the COSO framework. Be ready to explain what a control objective is and why a preventive control sometimes beats a detective one.

Process narratives and flowchartsYour first real task is often turning a messy conversation with the accounts payable lead into a narrative and a Visio or Lucidchart flow that marks each control.

Segregation of dutiesSpotting that the same person can create a vendor and approve its payment is the bread and butter of the job. Interviewers love to hand you a short scenario and ask what's wrong with it.

Excel that survives a big extractSystem exports from SAP or Oracle arrive with extra headers, merged cells and dates stored as text. Cleaning one with Power Query, then matching it to a population with XLOOKUP, is the Excel skill that actually gets tested.

Step two

Gets you the offer

Testing design and operating effectivenessDesign asks whether the control could catch the problem. Operating effectiveness asks whether it did, every time, across the period. Candidates who explain that split with a real example, like a three-way match, sound like they've done the work.

IT general controlsAccess provisioning, terminations, change management and backups sit under every financial control now. You don't need to be an IT auditor, but you should know what a user access review is and why a developer with production access worries people.

SQL or ACL for full-population testsInternal teams get direct access to company data, which firm auditors rarely have. A query that finds duplicate vendor bank accounts or invoices paid twice shows a hiring manager you can test everything instead of a sample.

Working in AuditBoard or TeamMateMost departments run plans, workpapers and issue tracking in one of these. Knowing how requests and review notes flow through it makes you useful in week one.

Step three

Gets you promoted

Building a risk-based audit planSeniors help decide what gets audited at all. That means asking leaders about new systems, acquisitions and turnover, then ranking areas by risk instead of rotating through last cycle's list.

Operational audits beyond SOXDirectors want auditors who can review a plant's scrap process or a sales team's commission calculations, where there's no framework handed to you. Scoping one of those from scratch is how you get noticed.

Root cause and remediation follow-upA finding that comes back every cycle is a finding nobody fixed. Finding the real cause, like a missing system setting or an understaffed team, and chasing the action plan to closure earns management's trust.

Writing for the audit committeeBoard members read a summary, not your workpapers. Turning a long report into a few lines that say what's broken, why it matters to the business and who owns the fix is the skill that gets you in the room.

Certificates worth your time

Certificate	Best for	Effort	Worth it?
Certified Internal Auditor (CIA)	Anyone planning to stay in internal audit past the first few years	A few months of steady evening study across the exam parts, plus an experience requirement to hold it	The first one to get. Many departments pay for it, and it maps directly to how the job is run.
Certified Information Systems Auditor (CISA)	Internal auditors who keep getting pulled onto IT general controls and system reviews	A couple of months of focused study, plus work experience before certification	Strong second credential. It moves you into IT audit work, where teams struggle to hire.
Certification in Risk Management Assurance (CRMA)	Senior auditors heading toward manager, advising leadership on risk	A few weekends of study once you already hold the CIA	Nice to have later, not a hiring filter. Only chase it once the CIA is done.
Certified Fraud Examiner (CFE)	Auditors who end up handling hotline tips and internal investigations	A few weekends to a couple of months, depending on your background	Worth it if your department runs investigations. Skip it if your work is mostly SOX testing.

Exam formats, fees and experience rules change, so check the Institute of Internal Auditors, ISACA or the ACFE directly before you register.

Put it on your résumé like this

Weak

Assisted with SOX testing and internal audits across the company.

Strong

Tested 64 SOX key controls across 5 business processes, wrote a SQL duplicate-payment test over 180,000 invoices that recovered $310K, and closed 11 of 12 prior-year findings with process owners.

Questions people ask

What's the first skill to learn for internal audit?

Reading a process and finding the control in it. Once you can walk a purchase-to-pay flow and point to where an approval should stop a bad payment, everything else builds on that habit.

Do internal auditors need to know SQL?

Not always to get hired, but it's quickly becoming the thing that separates candidates. Even basic joins and GROUP BY queries let you test a whole population. If your team uses ACL, Alteryx or Python instead, the same thinking carries over.

How are internal audit skills different from external audit skills?

External audit leans on accounting standards and the financial statements. Internal audit leans on process knowledge, operational risk and follow-through, because you'll still be at the company when the fix is due.

Can I pick up IT audit skills without a technical background?

Yes. Start with user access reviews and change management, since those follow the same logic as any financial control. Sit in on an ITGC walkthrough before deciding on the CISA.

Got step one? Start applying. HeroApply matches you to roles that fit.

Start your trial