What You'll Learn

  • Repudiation and assurances
  • Impossibility
  • Impracticability
  • Frustration of purpose
  • Comparative exam framework

Educational information only; not legal advice. This article is a general study aid and should be checked against current authority and course materials.

Impracticability, Frustration

1. Prospective Nonperformance and Anticipatory Repudiation

Anticipatory repudiation requires a clear and unequivocal statement or voluntary act showing that a party will commit a breach serious enough to support damages. Mere worry, delay, or a request to renegotiate is not necessarily repudiation.

● The nonbreaching party may treat the repudiation as an immediate breach, stop its own performance, and sue. ● Remaining conditions on the nonbreaching party’s performance may be excused. ● The injured party may instead wait for the due date, subject to mitigation and any justified reliance by the repudiator. ● A repudiation may be retracted before the other party materially changes position or treats it as final, as described in the outlines’ discussion of waiting for performance.

Adequate assurances

When reasonable grounds for insecurity exist but the other party has not clearly repudiated, the insecure party may demand adequate assurance and reasonably suspend performance. Failure to provide adequate assurance within a reasonable time can be treated as repudiation.

2. Impossibility

Objective impossibility discharges a duty when no one can perform because of a supervening event, the event’s nonoccurrence was a basic assumption, the party seeking excuse did not cause it, and the risk was not allocated to that party.

● Death or incapacity of a necessary person in a personal-performance contract. ● Destruction or failure of a specific subject matter essential to performance. ● Supervening illegality created by a new law, regulation, or court order.

3. Impracticability

Impracticability does not require literal impossibility. It addresses extreme and unreasonable difficulty, expense, injury, or loss caused by a supervening event. Ordinary market shifts, reduced profit, financial hardship, and predictable cost increases are not enough.

1 A supervening event makes performance extremely difficult or expensive. 2 The event’s nonoccurrence was a basic assumption of the contract. 3 The party claiming excuse was not at fault. 4 The agreement or surrounding circumstances did not allocate that risk to the claimant.

4. Frustration of Purpose

Frustration applies when performance remains possible, but an unforeseen event substantially destroys the principal purpose for which a party entered the contract. The purpose must have been central, the frustration nearly total rather than a mere reduction in value, nonoccurrence must have been a basic assumption, and the party seeking discharge must not have caused or assumed the risk.

Doctrine Core problem Typical claimant

Impossibility No one can render the promised performance. The performer or supplier.

Impracticability Performance is technically possible but commercially extreme and unjust. The performer or supplier.

Frustration Performance can occur, but the bargain’s principal value to the recipient has collapsed. The buyer, tenant, or party obliged to pay.

Key Takeaway

A theater rents a hall for a championship celebration. Before the event, the championship is canceled for reasons neither party caused. The hall still exists and can be used, so impossibility is weak. The renter argues frustration: the celebration was the known principal purpose, its value was nearly destroyed, and cancellation was a basic assumed nonoccurrence.

Exam Tip

For repudiation, quote the statement or act and decide whether it is unequivocal; then discuss assurances, suspension, retraction, and mitigation. For changed circumstances, identify the event, basic assumption, fault, foreseeability, and risk allocation; then select impossibility, impracticability, or frustration based on what actually failed.

Common Mistake

Calling doubt a repudiation; skipping the right to adequate assurances; treating financial inability as objective impossibility; equating less profitability with impracticability; and using frustration when the purpose merely became less valuable.

Primary Authorities

  • ● Restatement (Second) of Contracts: repudiation, impossibility, impracticability, and frustration principles.

  • ● UCC adequate-assurance, repudiation, and impracticability principles reflected in the uploaded Contracts outlines.

Exam-ready conclusion

Repudiation concerns a party’s announced future breach. Impossibility, impracticability, and frustration concern supervening events. Each doctrine demands a basic assumption, no fault, and careful risk allocation - not sympathy for a bad outcome.