ACG4651: Auditing

Course Description

ACG4651, Auditing, is the assurance course of the accounting major. It shifts the student's position: through the intermediate sequence the student prepares financial statements, and here they learn to examine statements someone else prepared and to express an opinion on whether those statements are fairly presented.

The University of West Florida describes it as an "introduction to principles of auditing and other assurance services with an emphasis on attestation standards and ethical requirements promulgated by the American Institute of Certified Public Accountants." Florida International University's version covers "standards and procedures of auditing financial information, ethics and responsibilities of auditors, collection and documentation of audit evidence, reporting and international auditing standards."

The intellectual core is evidence under constraint. An auditor cannot examine every transaction and must reach a defensible conclusion from a sample, within a budget, about an entity whose management has incentives that do not align with the auditor's. Everything in the course — risk assessment, materiality, internal control evaluation, sampling, analytical procedures, documentation — is machinery for doing that responsibly and for being able to demonstrate afterwards that it was done responsibly.

Auditing is also the accounting course with the most explicit professional ethics content, and for a structural reason: the auditor is paid by the client but the opinion serves third parties who are not in the room. Independence is not an abstraction in this field — it is a rule set with definitions, and violating it ends careers.

ACG4651 is offered at approximately 9 Florida institutions and carries 3 credits with roughly 45 contact hours at all of them. It is a 4000-level course taken in the senior year and is required in essentially every Florida accounting major.

⚠ Prerequisites vary widely — and one institution requires it in the final term

Credits are stable; access is not. This is the detail to check early, because these chains are long:

• University of West Florida: ACG3111 and ACG3401.
• Florida Atlantic University: ACG3141 and ACG4401.
• University of Central Florida: accounting major or minor status, plus ACG3141 (Intermediate Financial Accounting II) and ACG4401C (Accounting Information Systems), each with a grade of C (2.0) or better.
• Florida International University: a grade of C or higher in ACG4101 or equivalent, and 60 credits earned — and the course must be completed in the student's final semester.

Two things follow. First, the intermediate accounting sequence is numbered differently across Florida — ACG3111 at UWF, ACG3141 at FAU and UCF, ACG4101 at FIU — and SCNS equivalency does not cross numbers, so a transferring student should confirm which number their receiving institution requires rather than assuming their intermediate credit maps across. Second, FIU's final-semester requirement is a scheduling constraint that can delay graduation if discovered late; check for it wherever you enrol.

Learning Outcomes

Required Outcomes

• Explain the demand for audit and assurance services and the role of the independent auditor in capital markets.
• Distinguish among audits, reviews, compilations, agreed-upon procedures and other assurance and attestation engagements, and state the level of assurance each provides.
• Describe the profession's regulatory structure: the AICPA, the PCAOB, the SEC, state boards of accountancy, and the difference between public-company and private-company audit standards.
• Apply the AICPA Code of Professional Conduct, and evaluate independence in fact and in appearance for a given relationship, including prohibited non-audit services.
• Explain auditor legal liability under common law and the securities acts, and describe the professional consequences of failure.
• Apply the audit risk model, decomposing audit risk into inherent, control and detection risk, and explain how the assessment drives the nature, timing and extent of procedures.
• Determine and apply materiality at the financial statement and account levels, and explain the qualitative factors that make an immaterial amount material.
• Explain management assertions about classes of transactions, account balances and presentation, and link each assertion to the procedures that test it.
• Evaluate internal control over financial reporting using the COSO framework, document control understanding, identify deficiencies, and distinguish a deficiency from a significant deficiency and a material weakness.
• Design and perform tests of controls and substantive procedures, and explain the trade-off between them.
• Apply audit sampling: statistical and non-statistical approaches, attribute sampling for tests of controls, variables and monetary unit sampling for substantive tests, and the evaluation of sample results.
• Apply analytical procedures at the planning, substantive and review stages, and identify unexpected relationships warranting investigation.
• Evaluate the sufficiency and appropriateness of audit evidence, and rank evidence types by reliability.
• Prepare audit documentation that meets professional standards — that a reviewer could follow and that supports the conclusion reached.
• Audit the major transaction cycles: revenue and receipts, acquisition and payment, payroll, inventory and warehousing, and cash.
• Explain the auditor's responsibility for fraud under AU-C 240, apply the fraud triangle, and describe the required brainstorming and response procedures.
• Perform completion procedures: subsequent events, contingencies, management representations, going concern evaluation and the final review.
• Select and justify the appropriate audit report — unmodified, qualified, adverse or disclaimer — and explain emphasis-of-matter and critical audit matter paragraphs.

Optional Outcomes

• Audit information technology environments: general and application controls, and auditing around versus through the computer.
• Apply computer-assisted audit techniques and data analytics to a full population rather than a sample.
• Explain integrated audits of internal control under Sarbanes-Oxley section 404 and PCAOB standards.
• Explain governmental and single audits under the Yellow Book and Uniform Guidance.
• Explain internal auditing, the IIA standards, and the internal audit function's relationship to the external auditor.
• Apply forensic accounting and fraud examination techniques.
• Analyse major audit failures — Enron, WorldCom, Wirecard — and identify what the standards changed in response.
• Explain international standards on auditing and cross-border engagement issues.
• Complete an audit simulation or case using audit software.

Major Topics

Required Topics

• The assurance function: why audits exist, the expectation gap, and what an audit does and does not provide
• The profession and its regulators: AICPA, PCAOB, SEC, state boards; generally accepted auditing standards and the PCAOB standards
• Professional ethics: the AICPA Code, independence rules, integrity and objectivity, confidentiality, acts discreditable, and the conceptual framework approach to threats and safeguards
• Legal liability: common law liability to clients and third parties, statutory liability under the Securities Acts, and the landmark cases
• Audit planning: client acceptance and continuance, engagement letters, understanding the entity and its environment, preliminary analytical procedures
• Materiality: overall, performance and clearly trivial thresholds; qualitative considerations
• The audit risk model and risk assessment procedures; significant risks
• Management assertions and audit objectives
• Internal control: the COSO framework and its five components, documentation methods, walkthroughs, deficiency evaluation
• Tests of controls and the assessment of control risk
• Audit evidence: types, reliability hierarchy, sufficiency and appropriateness; confirmations, observation, inspection, inquiry, recalculation, reperformance
• Audit sampling: attribute and variables sampling, monetary unit sampling, sample size determination, evaluation and projection of misstatement
• Substantive procedures and substantive analytical procedures
• Audit documentation and working paper standards
• Fraud: the fraud triangle, AU-C 240 responsibilities, fraud risk brainstorming, responses to identified risks, and the distinction between fraud and error
• The revenue and collection cycle; accounts receivable and confirmations
• The acquisition and payment cycle; accounts payable and search for unrecorded liabilities
• Payroll and personnel; inventory and warehousing, including observation of physical counts
• Cash and financial instruments; bank confirmations and cut-off
• Completing the audit: subsequent events, contingencies and legal letters, management representation letters, going concern, engagement quality review
• Audit reports: the standard unmodified report, modifications, emphasis-of-matter and other-matter paragraphs, critical audit matters and key audit matters

Optional Topics

• IT auditing: general and application controls, ERP environments, cybersecurity considerations
• Data analytics in auditing; full-population testing; audit software
• Sarbanes-Oxley section 404 and integrated audits
• Governmental auditing: the Yellow Book, single audits, Uniform Guidance
• Internal auditing and the IIA standards
• Forensic accounting and fraud examination
• Audit failure case studies and the regulatory responses they produced
• International standards on auditing; group audits
• Assurance on non-financial information, including sustainability reporting

Resources & Tools

• Auditing and Assurance Services: An Integrated Approach (Arens, Elder, Beasley & Hogan, Pearson) is the dominant text for this course in Florida and nationally, and its transaction-cycle structure is the standard syllabus shape.
• Auditing & Assurance Services (Louwers et al., McGraw-Hill) and Principles of Auditing & Other Assurance Services (Whittington & Pany) are the other major adoptions.
• Auditing: A Risk-Based Approach (Johnstone-Zehms, Gramling & Rittenberg) is common where the course foregrounds risk assessment.
• Case materials: the AICPA case studies, Auditing Cases: An Interactive Learning Approach (Beasley, Buckless, Glover & Prawitt) — widely assigned and built around real failures — and the Deloitte and KPMG academic case programmes.
• Authoritative standards, all free or library-accessible: the AICPA Statements on Auditing Standards (the AU-C sections), the AICPA Code of Professional Conduct, PCAOB auditing standards for public company audits, the COSO Internal Control–Integrated Framework, the SEC independence rules, and the GAO Yellow Book for governmental engagements.
• Tools students encounter: Excel as the working environment for sampling and analytics; IDEA and ACL/Galvanize as the traditional audit data analysis packages; increasingly Power BI, Tableau and Alteryx, which the large firms have adopted and which several Florida programmes now teach; and firm audit platforms encountered in internships.
• Professional bodies and credentials: the AICPA; the Institute of Internal Auditors (CIA); the Association of Certified Fraud Examiners (CFE); ISACA (CISA) for IT audit; and the Florida Institute of CPAs (FICPA), which runs student membership, scholarships and an active campus presence worth joining.
• Florida licensure: the Florida Board of Accountancy, within the Department of Business and Professional Regulation, licenses CPAs in this state and publishes the current education and experience requirements. Verify these directly — see the note below, because they have been in flux.

Career Pathways

• Auditor / Assurance Associate at a public accounting firm — SOC 13-2011 (Accountants and Auditors). The direct destination. The Big Four (Deloitte, PwC, EY, KPMG) all maintain substantial Florida offices, and the national and regional firms — RSM, Grant Thornton, BDO, CBIZ, Crowe, Carr Riggs & Ingram, Cherry Bekaert, Berkowitz Pollack Brant, Kaufman Rossin, MBAF — recruit heavily from Florida programmes.
• Internal Auditor — SOC 13-2011. The CIA credential applies; internal audit is a large employer in Florida's health systems, utilities, hospitality and government sectors.
• IT Auditor — SOC 13-2011 and 15-1212, with the CISA credential.
• Forensic Accountant and Fraud Examiner — SOC 13-2011 and 13-2099, with the CFE credential. ⚠ A notably strong Florida pathway: the state has a persistent volume of financial fraud, elder financial exploitation and insurance fraud work.
• Government Auditor — SOC 13-2011, at the Florida Auditor General, county clerks of court, the Florida Department of Financial Services, and the federal GAO and inspectors general.
• Compliance Officer — SOC 13-1041, particularly in banking, health care and insurance.
• Financial Analyst and Corporate Accountant — SOC 13-2051 and 13-2011. Audit experience is a common two-to-four-year entry point that leads out into industry.
• ⚠ CPA licensure — the credential this course exists to support. Auditing is one of the three core sections of the CPA Examination, and Florida's Board of Accountancy has specific upper-division accounting coursework requirements that this course helps satisfy. Florida's education and experience requirements have been under active revision, as have many states', with new pathways to licensure being introduced. Do not rely on a textbook, an older adviser sheet, or this guide for the current rule — check the Florida Board of Accountancy directly, and check it again before applying. The historically stable elements are that the examination is national (administered through NASBA), that a substantial number of upper-division accounting and business credits is required, and that experience under a licensed CPA is required; the specifics of total hours and pathway options are what have moved.
• Florida employment context: Florida has a very large accounting employment base — no state income tax has drawn corporate and family-office activity, the real estate and hospitality sectors generate substantial audit work, and Miami's international business and financial services concentration supports cross-border practice. Public accounting recruits on a fixed autumn cycle for the following year, so students should be aware that the recruiting timeline runs well ahead of graduation.

Special Information

Position in the curriculum

ACG4651 is a senior-year course and one of the last in the accounting major. It follows the intermediate financial accounting sequence and, at most institutions, accounting information systems — a prerequisite pairing that is not accidental, since modern auditing is largely the audit of systems and the data they produce. It sits alongside advanced accounting (ACG4201), tax and governmental accounting, and precedes or accompanies the capstone.

Prerequisites narrative

See the divergence above. Every institution requires intermediate financial accounting; most add accounting information systems; several require a minimum grade of C in each and restrict enrolment to declared accounting majors. FIU additionally requires 60 earned credits and completion in the final semester. Because the intermediate sequence is long and the numbers differ across Florida, a student intending to transfer into an accounting major should map the whole ACG chain at the receiving institution early — this is not a course to plan around in the senior year.

Course format and workload

Three credits, approximately 45 contact hours, no laboratory. Assessment typically combines examinations with cases, audit simulations, and sampling or analytics exercises in Excel. Expect six to nine hours a week outside class.

Students consistently describe auditing as different rather than harder than intermediate accounting, and the difference is worth naming. Intermediate has right answers derived from rules. Auditing asks how much evidence is enough, and the answer is a professional judgement defended by reference to standards rather than computed. Students who succeeded through the intermediate sequence by learning procedures sometimes struggle here, and students who found intermediate mechanical often prefer this course. Examination questions are typically scenario-based for the same reason.

⚠ The CPA context — plan the degree, not just the course

Accounting is a licensure-gated profession and the licensure requirement shapes the degree. Florida CPA candidates have historically needed substantially more than 120 credit hours, which is why many accounting students pursue a master's degree or a fifth year — and why the decision needs to be made early enough to plan the credits, not in the final semester. Florida's public universities offer accounting master's programmes designed for this purpose.

As noted above, these requirements have been in active revision in Florida and nationally, with alternative pathways being introduced. The practical advice is unchanged by that flux: consult the Florida Board of Accountancy and your programme's accounting adviser, and re-verify before you apply rather than relying on what was true when you started.

Transfer and articulation

ACG4651 is a 4000-level SCNS course: the number is recognised statewide, but upper-division credit is not covered by the A.A. transfer guarantee and applicability inside the major is the receiving department's decision. Three specific constraints apply here beyond the usual. AACSB business school residency requirements commonly require a minimum proportion of upper-division business coursework at the degree-granting institution. Accounting departments frequently impose their own residency rule on major courses. And state boards of accountancy scrutinise the transcript when evaluating education for licensure, so where a course was taken and what it covered can matter beyond the degree audit. The course is not available before transfer from a Florida College System A.A.; the lower-division path is the business common prerequisites including ACG2021 and ACG2071.

Course-code variations across Florida

The accounting prefix family is large and the numbering diverges more than in most disciplines. Principles: ACG2021 (financial) and ACG2071 (managerial) — lower-division common prerequisites that transfer cleanly. Intermediate: ACG3101/ACG3111 at some institutions, ACG3141/ACG3151 at others, ACG4101 at FIU — different numbers for the same place in the sequence, and equivalency does not cross numbers. Accounting information systems: ACG3401 or ACG4401/ACG4401C. This course: ACG4651, with FAU titling it Auditing and Assurance Services 1. Related: ACG4201 (advanced), ACG4501 (governmental and non-profit), ACG4682 (forensic accounting at UWF), TAX-prefix taxation courses, and 5000-level ACG5xxx graduate versions, some co-taught with the undergraduate section.

AI Integration

Auditing is being reshaped by automation faster than most of accounting, and the direction of change is one students should understand before choosing the career, not after entering it.

AI as subject matter — this is now core content. The audit profession has moved substantially toward full-population testing: where sampling exists because examining every transaction was infeasible, data analytics now makes it feasible for many procedures. That is a genuine change to the intellectual core of the course, and good sections say so — sampling theory remains examinable and remains necessary where populations are unstructured or evidence is not machine-readable, but the profession's centre of gravity has shifted. The large firms use machine learning for risk assessment and anomaly detection, natural language processing to review contracts and leases, and robotic process automation for routine confirmation and reconciliation work. Continuous auditing, once theoretical, is operating.

The honest career implication. Much of the routine testing that historically filled a first-year associate's time is automating. That does not eliminate entry-level auditing, but it changes what it consists of: less tick-and-tie, more evaluating what the tool flagged and deciding whether it matters. The graduates who do well are the ones who can interpret analytics output and exercise professional judgement on it — which is precisely the skill this course teaches and precisely the skill that cannot be delegated.

Where AI helps a student. Explaining a standard or a concept a second way, generating practice scenarios, drafting the narrative sections of a case write-up, and writing Excel formulas or analytics scripts for sampling and testing exercises.

Where AI fails, and why it matters especially here. Models misstate professional standards — citing an AU-C or PCAOB section number and giving the wrong requirement, or applying private-company standards to a public-company scenario. They fabricate authoritative citations. They produce a confident conclusion without the evidence to support it, which is the exact failure mode auditing exists to prevent. And they do not know the client, which is where audit judgement actually lives.

The professional standard, which is enforceable. Audit documentation must support the conclusion reached and must enable an experienced auditor with no prior connection to the engagement to understand the work performed. An auditor cannot document "the model concluded there was no material misstatement." Professional scepticism — the requirement to question rather than accept — applies to a tool's output exactly as it applies to management's representations. And confidentiality under the AICPA Code means client data must never be entered into a public AI service: that is a disclosure to an unauthorised party, and in this profession it is a licensing matter, not a policy preference.

Academic integrity. Instructor policies vary; a common arrangement permits AI for concept explanation and coding while prohibiting it on cases and audit judgements, which are the assessed skill. Read the syllabus. Note also that accounting programmes take integrity violations unusually seriously, because a state board of accountancy asks about them.