Illinois exam glossary
Unenforceable contract: meaning, examples and Illinois rules
A buyer and seller may reach a bargain, yet a court may decline to enforce the claim brought before it. The obstacle might be a required signed writing, a filing period or a specific licensing restriction. First identify the obstacle. Then decide which contract label fits.
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The short answer
An unenforceable contract is an agreement on which a court will not grant the requested enforcement because an applicable rule or defense blocks it. That is not necessarily the same as no agreement ever forming. For Illinois real estate exam questions, distinguish a missing required signed writing, a late claim and a statutory compensation bar. Then check the rule's scope, exceptions and effect; one label does not decide every remedy or every clause.
PSI lists void, voidable and unenforceable contracts at national V.A.6, with related enforceability and writing topics in V.A.3-5. The whole Contracts category has 19 of 100 scored national broker questions, not a separate quota for this glossary entry. The examples teach classification and statutory reading. They do not calculate a live filing deadline or decide a private contract dispute.
Ask four questions before calling an agreement unenforceable
- Did an agreement form? Separate a failure of offer, acceptance or another required element from a rule that blocks recovery on an otherwise established bargain. A factual disagreement about formation is not automatically the same issue as a writing defense.
- What claim and relief are being pursued? Identify the claimant, the promise, the requested remedy and the legal barrier. Land-contract writing, a deadline to sue and a licensing restriction address different questions.
- Read the controlling rule. Which transaction does it cover? What writing, signature, filing period or licensing status does it require? Check the relevant dates and any exception before deciding the effect of a violation.
- How far does the consequence extend? Determine whether it concerns the claim, one term or the whole bargain. An exception or alternative theory must meet its own requirements. Preserve the records and obtain qualified legal review for actual defenses, deadlines or remedies.
| Issue | Rule to identify | Do not assume |
|---|---|---|
| Covered land agreement | 740 ILCS 80/2: sufficient written contract or memorandum and the required signature/authority | Every oral bargain is automatically void, or a deposit automatically proves an exception |
| Qualifying written-contract or written-lease action | 735 ILCS 5/13-206: general ten years after accrual, with statutory qualifications | Every claim involving a signed paper gets ten years from signing |
| Unwritten-contract action within the general provision | 735 ILCS 5/13-205: general five years after accrual, with stated exceptions | Every real-estate dispute uses this general period |
| Compensation for unlawfully unlicensed brokerage activity | 225 ILCS 454/10-15(a)-(b): prohibited compensation and recovery restriction | A promised percentage or later license cures the violation |
| A claim met with a defense | 735 ILCS 5/2-613(d) and 2-619: appropriate pleading and specified dismissal grounds | The broker can cancel the agreement or decide litigation procedure from this table |
| An alleged statutory violation | Read the statute and controlling interpretation; K. Miller illustrates the distinction | Every violation automatically destroys every contract claim |
The distinctions that matter
| Distinction | How it works | What to notice |
|---|---|---|
| No agreement and an enforcement barrier | Formation may fail because a required element is missing. Alternatively, a bargain may be established but the particular action faces a defense. | Ask both questions instead of using unenforceable for every defect. |
| Void and unenforceable | In the usual exam distinction, void means the law treats the purported bargain as having no binding legal effect. Unenforceability concerns a barrier to the requested enforcement. | The controlling statute and case can use more specific language; a textbook label does not override them. |
| Voidable and unenforceable | Voidable describes an agreement that a protected party can avoid under the applicable rule. Unenforceability describes a bar to recovery or enforcement. | Do not turn a protected election into an automatic conclusion that every agreement was void from the start. |
| Statute of Frauds and limitations | The Frauds Act concerns required written evidence for covered bargains. A limitation period concerns when the action must be commenced. | A signed contract can still face a late-filing defense. |
| Signing and accrual | Signing records the bargain. Accrual is when the relevant cause of action arises under the governing law. | Do not count a litigation period from the signature date merely because it is the easiest date to find. |
| A clause and the whole contract | The legal rule may address a particular term or a wider bargain. Whether lawful terms survive depends on the governing law and agreement. | A severability clause does not automatically save prohibited essential terms. |
| Contract recovery and quantum meruit | A contract claim seeks relief on the bargain. Quantum meruit is a different theory requiring its own factual and legal basis. | Renaming the demand does not automatically bypass a statutory bar. |
Work through the facts
1. The bargain and the writing defense
An exercise establishes an oral land-sale bargain, but no sufficient signed memorandum. The seller raises Section 2 of the Frauds Act, and no established exception or other modifying fact is supplied.
- The stated writing barrier is distinct from the premise that a bargain was reached.
- A proven exception would need its own facts.
Answer: The land-sale enforcement claim faces the Frauds Act barrier on those assumptions. Do not conclude that every legal consequence of the parties' conduct disappears.
2. Electronic form is not the defect
The exercise establishes agreement to electronic transactions, an attributable electronic signature adopted by the party to be charged, and connected records containing the necessary land-contract terms. All relevant writing and signature requirements are assumed satisfied.
- Electronic records can meet writing and signature requirements under current Illinois UETA.
- The conclusion depends on the stipulated facts, not merely on seeing a typed name in an inbox.
Answer: Do not call the claim unenforceable solely because the qualifying records are electronic.
3. A late qualifying written-contract action
Assume Section 13-206's general ten-year rule governs this claim, the cause of action accrued in 2014, the first action is brought in 2026 and no exception, different applicable period or modifying event applies.
- The year-only facts put the action more than ten years after accrual.
- The barrier concerns this filing, not whether the historical agreement existed.
Answer: The claim is late under the supplied rule and assumptions. This is not a method for determining a real filing date.
4. Signing is not the stipulated accrual event
A contract was signed in 2010. The exercise states that the relevant claim first accrued on the 2024 breach. A student declares a 2026 action late by counting only from signing.
- The question supplies accrual in 2024.
- The relevant claim arose two years before the 2026 action in these year-only facts. Sixteen years since signing is a different interval.
Answer: The student used the wrong event. The relevant period and any other applicable rule still must be identified.
5. A license obtained afterward
An individual negotiates a sale for someone else for a promised fee while unlawfully unlicensed. No exemption or other authorization applies. The individual later obtains a broker license and sues for that earlier work.
- Section 10-15(b) refers to licensing when the act was done or service performed.
- The later credential does not change the stipulated status during that work.
Answer: The promised fee and later license do not establish a right to recover that prohibited compensation.
6. An exception is not established by a payment alone
A prospective buyer points to one partial payment and says that every oral land deal must therefore be enforceable. No other exception facts are established.
- Payment is a fact to analyze, not a universal substitute for the required writing.
- An actual exception and the remedy sought require the applicable legal test.
Answer: The blanket conclusion does not follow. Berkowitz illustrates why partial payment and the timing of alleged performance need careful analysis.
7. What K. Miller actually shows
In K. Miller Construction v. McGinnis, the Illinois Supreme Court considered a home-remodeling writing violation and whether contract and quantum-meruit claims could proceed.
- The court did not treat the statutory violation as an automatic bar to both theories.
- Its interpretation of that Act does not repeal another profession's express recovery restriction.
Answer: Read the particular statute and holding. The remand was not an automatic money award or permission to ignore writing obligations.
8. Different licensing statutes, different consequences
A student applies the brokerage compensation bar to conclude that a residential mortgage must always be invalid if a participant lacked a required mortgage license.
- Section 10-15 addresses brokerage compensation for specified unlicensed activity.
- Current 205 ILCS 635/1-3(e) says a mortgage loan is not invalid solely because of a violation of that section.
Answer: Do not transfer a consequence from one statute into a different regime. The mortgage provision does not authorize unlicensed activity or decide every defense to a particular loan.
Mistakes to avoid
- Every defect means void. Separate formation, protected avoidance and a specific enforcement bar.
- Signed means enforceable forever. The claim can still face a time limit or another applicable defense.
- Every typed name is a sufficient signature. Attribution, adoption, electronic agreement and the required terms still matter.
- Five or ten years always starts at signing. Identify the claim, applicable law and legally correct accrual event.
- Any later license or refund label cures the fee. Use Section 10-15's actual scope and time-of-service requirement.
- Quantum meruit always saves the claim. A separate theory needs its own basis and cannot automatically evade a protective statute.
- An old case settles the current law. Check its actual holding, precedential status and later statutory changes.
Check your understanding
These are original teaching questions, not recalled or predicted PSI questions. Answer first, then explain why the other choices fail.
1. An agreement is established, but an applicable rule blocks the requested contract recovery. Which label fits the stated distinction?
- Unenforceable as to that claim
- Fully performed
- Recorded
- Automatically nonexistent
Show answer and explanation
Answer: A. Unenforceable as to that claim
The question supplies an agreement and a barrier to recovery. Nonexistence contradicts the supplied formation fact; neither full performance nor recording follows. The exact rule and scope still control the legal consequences.
2. Which statement best distinguishes unenforceability from a failure of formation?
- An agreement may be established while an enforcement barrier still applies
- They always mean the same thing
- A failed formation claim can never involve disputed facts
- A writing always proves every formation element
Show answer and explanation
Answer: A. An agreement may be established while an enforcement barrier still applies
The two questions are distinct. A signed paper does not automatically prove every element, and factual disputes can concern formation. The appropriate analysis starts with the facts supplied, not a universal label.
3. On a covered Illinois land-sale claim, which writing fact matters under Section 2 of the Frauds Act?
- Any photograph of the parcel
- An unsigned property-tax bill
- A sufficient contract or memorandum with the required signature of the party charged or the properly authorized agent
- The presence of a yard sign
Show answer and explanation
Answer: C. A sufficient contract or memorandum with the required signature of the party charged or the properly authorized agent
The statute concerns the required written evidence and signature/authority, not a sign, tax bill or photograph alone. Connected records and any claimed exception still need the governing test. A different transaction or a proven exception can change the analysis.
4. The facts establish that electronic agreement, attribution, adopted signature and required written terms all satisfy applicable law. What follows?
- All emails are always sufficient
- No land agreement can use electronic records
- Electronic form alone does not make the claim unenforceable
- A typed name anywhere always binds its owner
Show answer and explanation
Answer: C. Electronic form alone does not make the claim unenforceable
The conclusion follows from the stipulated qualifications. It does not validate every email or typed name, while the blanket ban on electronic land records ignores UETA. Missing attribution or material terms would present different facts.
5. Assume the general Illinois written-contract provision applies with no exception. What period does Section 13-206 state?
- Five years from signing
- No filing period
- Thirty days after closing
- Ten years after the cause of action accrued
Show answer and explanation
Answer: D. Ten years after the cause of action accrued
The stated general rule is ten years after accrual, not five years from signing, a universal closing deadline or unlimited time. This does not classify every signed document or displace special statutes and the section's other provisions.
6. Assume Section 13-205's general unwritten-contract rule applies with no exception. What is its period?
- Twenty years after recording
- Ten years after any signature
- Five years after the cause of action accrued
- One year after possession
Show answer and explanation
Answer: C. Five years after the cause of action accrued
The general unwritten-contract provision states five years after accrual. The other triggers and periods are not the stipulated rule. Claim classification, specialized law and any modifying event must be checked in an actual matter.
7. The contract was signed in 2010, but the facts stipulate that this claim first accrued in 2024. Which event starts the supplied accrual-based rule?
- The 2010 signature in every case
- The date the claimant first reads this glossary
- The 2026 lawsuit
- The stipulated 2024 accrual
Show answer and explanation
Answer: D. The stipulated 2024 accrual
The rule uses the cause of action's accrual, which the exercise supplies as 2024. Signing, filing and reading the page do not replace that stated event. A different claim could have a different legally relevant start; this answer does not calculate a live deadline.
8. A person was unlawfully unlicensed when performing regulated brokerage services for compensation, with no exemption. A license was obtained later. Which fact matters under Section 10-15(b)?
- Only licensing on the lawsuit date
- Only whether payment was to be made in cash
- Only whether the fee was promised in writing
- Licensing when the acts or services were performed
Show answer and explanation
Answer: D. Licensing when the acts or services were performed
Section 10-15(b) addresses licensing at the time of the acts or services giving rise to the compensation claim. Later licensing, a written fee promise or cash payment does not cure the stipulated violation. Lawful exemptions or materially different services would need separate analysis.
9. What is the correct lesson from K. Miller's treatment of the home-remodeling writing violation?
- All brokerage compensation restrictions disappeared
- Every statutory violation always makes every contract void
- Read the particular statute and its controlling interpretation; the violation did not automatically bar those claims
- Every contractor automatically wins the entire demanded price
Show answer and explanation
Answer: C. Read the particular statute and its controlling interpretation; the violation did not automatically bar those claims
The Supreme Court allowed the relevant claims to proceed and remanded; it did not automatically award the full demand. Its statutory interpretation rejects the blanket invalidity claim, but does not erase Section 10-15 or authorize ignoring writing rules.
10. A claimant changes the label on the same demand to quantum meruit after an enforcement objection. What should happen next?
- Automatic cancellation of every defense
- Automatic recovery at the contract price
- Independent analysis of that theory and the controlling statutory policy
- Automatic transfer of the property
Show answer and explanation
Answer: C. Independent analysis of that theory and the controlling statutory policy
An alternative label does not supply the theory's required facts or defeat the governing policy. Neither automatic payment, cancellation of defenses nor conveyance follows. A particular statute and proven facts can permit alternative recovery, as K. Miller illustrates within its scope.
Common questions
What is an unenforceable contract?
It is an agreement for which the requested judicial enforcement is blocked by an applicable rule or defense. A writing requirement or an expired filing period can raise that issue. Specify the claim and the barrier rather than assume the label removes every consequence of the parties' conduct.
How is it different from a void or voidable contract?
In the usual exam distinction, void means no binding legal effect; voidable means a protected party has a legally recognized choice to avoid the agreement. Unenforceability concerns a bar to the requested enforcement. Read the actual statute and holding because their language and consequences can be more specific than a textbook classification.
Is every oral real estate agreement automatically void?
No. Identify the transaction and its writing rule. Section 2 of the Illinois Frauds Act addresses enforcement of covered land agreements and the required signed written evidence. Calling every oral bargain void for every purpose goes too far. Do not promise that an exception exists in an actual file.
Can emails satisfy a land-contract writing requirement?
Qualifying electronic records and signatures can satisfy writing and signature requirements under current Illinois UETA. Agreement to electronic dealings, attribution, adoption and the required terms still matter. A typed name somewhere in a message is not an automatic answer. This page does not determine whether a private email chain is sufficient.
Does paying a deposit automatically overcome the Frauds Act?
No. A payment is not a universal exception. The actual agreement, acts of performance, timing, requested relief and applicable doctrine need analysis. The published Berkowitz opinion illustrates limits on treating partial payment or acts preceding an alleged agreement as the required performance. It does not supply a shortcut for every land dispute.
What are the general Illinois written and unwritten contract periods?
Section 13-206 generally provides ten years after accrual for the written-contract and written-lease actions it covers; Section 13-205 generally provides five years after accrual for the unwritten-contract actions it covers. These are not universal periods for every real-estate claim. Other statutes, the claim's classification and modifying events can matter.
Does the filing period start when the contract is signed?
Not automatically. The cited general provisions use accrual of the cause of action. The signature date can precede the relevant breach by years. Accrual, discovery rules where applicable, tolling, repose, special statutes and procedural issues require the actual facts and law. Have qualified counsel determine a real deadline promptly.
Does any later payment or new promise restart a period?
Do not assume any later payment restarts the clock. Section 13-206 contains a specific provision for a payment or new promise to pay made in writing, as well as particular promissory-note rules. The obligation, written record and applicable law must satisfy the relevant provision. Get legal advice before relying on an alleged revival.
Can later licensing make an earlier prohibited commission recoverable?
Section 10-15(b) looks to licensing when the relevant acts or services were performed. A later license alone does not cure the stipulated earlier violation. Section 10-15 also has specific consumer and transaction-party provisions; those are not general permission to pay an outsider for unlawfully unlicensed brokerage work.
Does every statutory violation make the entire contract unenforceable?
No. K. Miller directs attention to statutory language and the controlling policy analysis. In that home-remodeling case, the Supreme Court did not treat the writing violation as an automatic bar to the contract and quantum-meruit claims. It remanded for further proceedings, rather than automatically awarding the claimed money or excusing all regulatory obligations.
Does the same licensing consequence apply to brokers and mortgage lenders?
Different statutes can impose different consequences. Section 10-15 restricts brokerage compensation for specified unlicensed work. Under 205 ILCS 635/1-3(e), the stated mortgage-licensing violation alone does not invalidate the mortgage loan. That rule does not excuse unlicensed activity or resolve every other defense to a particular loan.
Can a clause fail while other terms survive?
The scope of the consequence depends on the rule and the agreement. A provision may raise a distinct issue from the whole bargain, but a severability label does not automatically preserve prohibited essential terms. Identify what the law actually invalidates instead of declaring every clause enforceable or every agreement destroyed.
Can quantum meruit or restitution still be available?
Sometimes a separate theory can proceed, but it is not automatic and requires its own basis. K. Miller illustrates why a specific writing violation did not foreclose the claims there. Do not use that result to bypass another statute's express restriction or assume that the contract price must be awarded under a different label.
Who decides whether a defense actually bars recovery?
Courts apply the governing law to the claim and evidence. Sections 2-613(d) and 2-619 illustrate the procedural requirements for defenses and dismissal grounds. Preserve the agreement, communications and performance records for legal review. This glossary cannot determine a private filing deadline, decide whether a defense was waived or authorize an escrow release.
Keep practising
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Official sources and scope
The statutes address different enforcement questions. K. Miller and Berkowitz illustrate their particular holdings; neither supplies a universal exception for every oral agreement or unlicensed service. The filing examples use supplied years and assumptions. They do not determine a real deadline, an escrow release or the validity of a private agreement.
- PSI June 24, 2026: Contracts and enforceability outline
- 740 ILCS 80/2: land-contract writing and signature
- 815 ILCS 333/5, 7 and 9: electronic records and signatures
- 735 ILCS 5/13-206: qualifying written-contract filing period
- 735 ILCS 5/13-205: general unwritten-contract filing period
- 225 ILCS 454/10-15: compensation and licensing when services were performed
- Berkowitz v. Urso: limits on partial-payment and performance arguments
- K. Miller Construction v. McGinnis: a violation does not automatically bar both claims
- 735 ILCS 5/2-613(d): facts supporting affirmative defenses
- 735 ILCS 5/2-619: specified defenses and procedure
- 205 ILCS 635/1-3(e): a distinct mortgage-licensing consequence
This is exam preparation, not advice for a specific transaction. State law and the applicable facts control. Our editorial and corrections process explains how to report an issue.