Area I
Ethics, Professional Responsibilities & Federal Tax Procedures
Circular 230, preparer penalties, federal tax procedures, and the legal duties of a CPA.
4 topics · Notes + 30 MCQs
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REG Study Hub
Regulation, free during beta. Pick an Area to read the notes and practice original MCQs. Each card opens a study dashboard with a recommended flow.
Exam map & what to expect
4 hrs
exam length
72
MCQs · 50% of score
8
task-based sims · 50%
Core
section (CPA Evolution)
| Blueprint Area | Title | Approx. weight |
|---|---|---|
| I | Ethics, Professional Responsibilities & Federal Tax Procedures | 10–20% |
| II | Business Law | 15–25% |
| III | Federal Taxation of Property Transactions | 5–15% |
| IV | Federal Taxation of Individuals | 22–32% |
| V | Federal Taxation of Entities | 23–33% |
2026 update
REG is a Core section under CPA Evolution. It tests the federal tax law in effect for your testing window. The 2026 tax-law changes (OBBBA) phase in around July 1, 2026, so confirm the rules for your exam date against the current AICPA REG Blueprint.
Weights are the AICPA's stated ranges; confirm against the current official blueprint before exam day.
Area II
Business Law
Agency, contracts, sales, negotiable instruments, secured transactions, bankruptcy, and business structures.
10 topics · Notes (2 parts) + 30 MCQs
Area III
Federal Taxation of Property Transactions
Basis, holding period, gains and losses, cost recovery, and C-corporation formation.
3 topics · Notes + 30 MCQs
Area IV
Federal Taxation of Individuals
Filing status, gross income, adjustments, itemized deductions, §199A QBI, and credits.
7 topics · Notes + 30 MCQs
Area V
Federal Taxation of Entities
C corporations, distributions, liquidations and reorganizations, partnerships, S corporations, and exempt organizations.
8 topics · Notes + 30 MCQs