A manufacturer orally agrees to build a custom piece of equipment for a client for $20,000. No papers are signed. Before production begins, the manufacturer gets a better offer and backs out. Is the oral contract enforceable?
Answer now, before you read on. If your answer is "No, it's for goods over $500 so it fails the Statute of Frauds," you've just identified a critical blind spot the REG exam is designed to exploit. The correct answer is yes, and understanding why is the key to passing this section.
Contracts on the CPA REG exam test your judgment on the formation, performance, and enforceability of agreements under two different rule sets: Common Law for services and real estate, and the Uniform Commercial Code (UCC) for the sale of goods. Mastering the distinction between them is non-negotiable.
Key facts
- Governing Law
- Common Law (services, real estate) and UCC Article 2 (sale of goods).
- Exam Section
- Regulation (REG), within the Business Law area (15-25% of the exam).
- Question Types
- Primarily Multiple-Choice Questions (MCQs), with principles tested in Task-Based Simulations (TBS).
- Statute of Frauds Threshold
- Contracts for the sale of goods for $500 or more must generally be in writing to be enforceable.
- Core Formation Elements
- Offer, Acceptance, Consideration, and Legal Purpose.
- Official Body
- The AICPA's Uniform CPA Examination Blueprints define the testable content.
The AICPA reports the cumulative REG pass rate was 49.6% as of Q1 2024 (AICPA), which proves that precision on topics like Contracts is essential.
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Which Law Governs? The Most Important Question in CPA Contracts
Every contracts question on the REG exam is a test of your initial judgment. Before you analyze offer, acceptance, or anything else, you must determine which body of law applies. Get this wrong, and every subsequent step will be wrong.
- Common Law: This is the default. It governs contracts for services (like an audit engagement), real estate, and intangible assets. Its rules are generally strict and formal.
- Uniform Commercial Code (UCC), Article 2: This specifically governs contracts for the sale of goods—tangible, movable property. The UCC is designed to be more flexible to facilitate business.
Mixing these up is the single most common mistake candidates make. Try VoraPrep's free CPA practice questions to see how the exam forces you to make this distinction under pressure.
How Is a Valid Contract Formed?
For a contract to be legally binding, four core elements must exist. The exam will give you a scenario and test whether you can spot a missing element or a valid defense.
The Four Essential Elements
- Offer & Acceptance (Mutual Assent): One party makes a clear offer, and the other party accepts it. This creates a "meeting of the minds."
- Consideration: Both parties must exchange something of legal value. A one-sided promise of a gift is not a contract.
- Legal Purpose: The subject of the contract must be legal. A contract to commit a crime is void from the start.
Common Defenses to Formation
Even if the elements appear to be present, a contract may be unenforceable if a valid defense exists. The exam tests these heavily. Key defenses include:- Lack of Capacity: A party was a minor or mentally incompetent.
- Duress or Undue Influence: A party was forced into the agreement.
- Fraud or Misrepresentation: A party was deceived about a material fact.
- Mistake: A mutual mistake about a fundamental assumption of the contract.
Notice that capacity is a defense, not an element of formation. This is a fine point of law that the exam uses to separate passing candidates from the rest.
The table below highlights the crucial differences between Common Law and the UCC. This is not for memorization; it's for judgment.
| Feature | Common Law (Services, Real Estate) | UCC Article 2 (Sale of Goods) |
|---|---|---|
| Acceptance | Mirror Image Rule: Acceptance must be identical to the offer. Any change is a counteroffer. | Battle of the Forms (UCC 2-207): An acceptance with new terms is still valid. Between merchants, new terms are included unless they are material. |
| Contract Modification | Requires new consideration to be valid. | Does not require new consideration, only good faith. |
| Missing Terms | Contract will likely fail for being too indefinite. | Contract can be valid even if terms like price or delivery date are missing. The UCC provides "gap-fillers." |
| Firm Offers | An option contract requires consideration to be irrevocable. | A merchant's signed, written offer is irrevocable for a stated time (or up to 3 months if no time is stated) without consideration. |
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When Must a Contract Be in Writing? The Statute of Frauds
The Statute of Frauds dictates that certain contracts are unenforceable unless they are in writing. The mnemonic MY LEGS is the best way to remember the six categories.
- Marriage: Contracts made in consideration of marriage.
- Year: Contracts that cannot possibly be performed within one year.
- Land: Contracts for the sale or transfer of an interest in real property.
- Executor: An executor's promise to personally pay an estate's debts.
- Goods: Sale of goods for $500 or more.
- Surety: A promise to pay the debt of another person.
- Specially manufactured goods not suitable for sale to others.
- Written confirmation between merchants that is not objected to within 10 days.
- Admission in court that a contract was made.
- Performance to the extent that payment has been made or goods have been accepted.
This brings us back to the opening question. The oral contract for the $20,000 custom machine is enforceable under the "Specially manufactured goods" exception. The surface-level rule says "no," but the deeper UCC exception says "yes." That's where points are won or lost.
Worked Example: Deconstructing an Exam Question
Let's walk through a classic REG scenario. The goal is to apply the rules methodically, just as you would on exam day.
On June 5, Apex emailed Keystone: "We accept your offer for 1,000 X-5 drills at $50 per unit. Please include our standard shipping insurance on the invoice."
On June 6, before reading Apex's email, Keystone's CEO called Apex's purchasing manager and said, "I'm sorry, we have to revoke the offer. A major client just bought our entire inventory." Apex insists they have a contract. Does a valid contract exist?
This problem is a minefield of potential errors if you don't think precisely.
Step 1: Identify the Governing Law
The contract is for drills—tangible, movable goods. Therefore, UCC Article 2 governs. This is the only correct first step.
Step 2: Analyze the Offer
Keystone, a merchant, made a signed, written offer that promised to keep it open. This is a merchant's firm offer under the UCC. It is irrevocable for the time stated (until June 10). Keystone's attempted revocation on June 6 was legally ineffective.
Step 3: Analyze the Acceptance
Apex accepted on June 5, before the offer expired and before the invalid revocation attempt. The issue is the new term: "Please include our standard shipping insurance."
- The tempting wrong answer (Common Law thinking): Applying the strict "mirror image rule," this new term would make Apex's response a counteroffer that rejects Keystone's original offer. No contract would exist. This is the classic trap for candidates who fail Step 1.
- The correct answer (UCC thinking): Under UCC 2-207, an acceptance with additional terms is still a valid acceptance. Since both parties are merchants, the new term (shipping insurance) automatically becomes part of the contract unless it materially alters the deal, the original offer forbade new terms, or Keystone objects in a reasonable time. A request for standard insurance is not a material alteration.
Step 4: Conclude
A valid contract was formed on June 5 when Apex sent its acceptance. Keystone's attempted revocation on June 6 was invalid.
This single problem tests firm offers, the UCC's flexible acceptance rules, and the core distinction from common law. The VoraPrep adaptive engine has over 9,500 questions designed to train you on exactly these kinds of multi-step judgment calls.
How to Study Contracts Effectively
The key is active application, not passive reading. Your goal is to build the mental muscle to spot the governing law and apply the correct framework instantly.
Weekly Drill: For one week, diagnose every transaction you encounter. Your coffee purchase? Sale of goods, UCC. Your apartment lease? Interest in land, Common Law. Your cell phone plan? A mix of goods (the phone) and services (the network access). For each, ask: "What law governs? What are the key terms? Is it in writing?" This trains your brain to make the crucial first-step classification automatically. Connect to Other REG Topics: Contract law is foundational. For example, understanding what constitutes a binding agreement is essential for grasping the rules in our complete study guide to CPA REG taxpayer penalties, where penalties often arise from contractual failures. Final Week Review: Create a one-page "cheat sheet" comparing Common Law and UCC rules side-by-side for offer, acceptance, modification, and the Statute of Frauds. Review it daily. This is far more valuable than re-reading a textbook chapter.