The rule
Promising unchanged work already owed does not supply new consideration for higher pay. Angel permits a fair voluntary adjustment before completion in light of unanticipated circumstances. For goods, 2-209 removes consideration but preserves other enforceability requirements.
Elements
- An identified existing obligation.
- A comparison of the promised performance and alleged new exchange.
- Any supported exception under the governing law.
Exceptions and limits
- Angel requires more than a voluntary promise or a price increase alone.
- For goods, separately check agreement, good faith, required form and waiver.
When the issue arises
State the original obligation first. When a contractor threatens to stop unchanged work, a service provider encounters an unexpected burden, or a goods seller seeks a higher price after agreement, the proposed adjustment must be compared with what was already owed under the governing law. New words alone are not a new exchange. Assess coercion, any supported exception and the goods rule’s separate enforceability requirements.
What was new in the proposed exchange?
Alaska Packers found that the workers promised the work they already owed. The defective-net claim did not supply a new burden on the trial findings, and the court did not treat the pressured wage paper as a voluntary replacement of the original bargain.
Adding words of agreement does not create new consideration. Identify any actual additional work or surrendered right, then examine any separate defense to that supposed change.
Why Angel reached a different result
Angel accepted a rule permitting a fair voluntary modification before either side fully performs when unanticipated circumstances justify it. The unexpected increase in housing and the city's voluntary adjustment mattered.
The opinion also examined municipal authority separately. A common-law exception to consideration does not establish an official's authority to commit public funds, or prove that a threatened adjustment was voluntary.
Goods change the consideration question
Section 2-209 does not require new consideration for a goods modification. Check agreement, good faith, the modified contract's statute of frauds and any signed restriction; the absence of consideration is not the goods seller's problem.
An ineffective attempted modification can still raise waiver, but retraction and reliance then require their own analysis. Do not turn the waiver qualification into a declaration that every oral price demand binds the buyer.
A simple fact pattern
Facts. A painter owes completion of a house for $8,000. Without any new work or changed circumstances, the painter demands $2,000 more and threatens to leave the exposed house unfinished; the owner has no timely replacement and agrees.
Analysis. The promised completion is the existing duty, and the facts supply neither a new exchange nor Angel's voluntary fair response to an unanticipated burden. Alaska Packers supports rejecting the extra-pay claim on this record, apart from any additional duress analysis.
A harder fact pattern
Facts. A city service contractor encounters a large unanticipated increase in collection work. Before completion, the city voluntarily approves additional pay after reviewing the added burden. The signed original agreement did not price the extra growth, but an ordinance may limit the approving official's authority.
Analysis. Analyze the original scope and Angel's timing, voluntariness, unexpected circumstances and fairness requirements. Then separately read the ordinance and identify who could approve the change; satisfying the consideration exception does not decide public authority.
Compared with nearby doctrines
| Doctrine | How it differs |
|---|---|
| Contract modification | Modification includes agreement and formality questions in addition to the consideration issue. |
| Duress | The circumstances producing apparent agreement may supply a separate avoidance claim. |
Common exam mistakes
- Finding a new exchange solely because a second paper was signed.
- Treating any increase in costs as automatically unanticipated or automatically anticipated.
- Using the common-law consideration rule to reject a goods modification.
- Stopping after consideration while ignoring coercion, authority or required form.
Practice questions
Two merchants sign a goods-sale agreement that permits modifications only in a signed writing. They later discuss a higher price orally, offering no new consideration.
Assume model UCC 2-209 governs and no waiver has been established. Which analysis is strongest?
Answer and explanations
Correct answer: B.
Authority: UCC 2-209(1), (2) and (4): modification versus waiver
- A. Wrong. Subsection (1) dispenses with consideration for an agreement modifying a contract within Article 2. That is not the decisive defect here.
- B. Correct. Subsections (1) and (2) address different requirements. The signed restriction still matters even though new consideration is unnecessary.
- C. Wrong. A failed modification can operate as a waiver, but the stem does not establish one. Identify facts supporting waiver rather than assuming it.
- D. Wrong. The question expressly concerns an Article 2 transaction. Its modification rule cannot be transferred automatically to a transaction outside that Article.
Under model UCC 2-209(5), a supplier has waived a delivery term for an unperformed portion of a goods contract. The customer materially changes position in reliance on that waiver.
The supplier then gives reasonable notice demanding strict performance. What issue remains?
Answer and explanations
Correct answer: D.
Authority: UCC 2-209(5): retraction and material reliance
- A. Wrong. The specified subsection makes reliance and unjust retraction relevant. It does not require fresh consideration as the test posed here.
- B. Wrong. The provision allows retraction affecting an executory portion under stated conditions. It does not make every waiver permanently irrevocable.
- C. Wrong. Notice is important, but the statutory qualification concerning material reliance can still prevent an otherwise timely retraction.
- D. Correct. Reasonable notice alone does not resolve the question. Explain how the customer's changed position could make renewed strict performance unjust.
More contracts practice questions and essays
Quick answers
Does a voluntary promise of extra pay always need a new exchange?
Angel recognizes a defined exception for a fair voluntary modification in light of unanticipated circumstances before completion. Voluntariness alone does not establish all of those requirements.
Does no consideration mean no writing is needed for goods?
No. Section 2-209 separately preserves applicable writing requirements. Removing one requirement does not remove the others.
Did Alaska Packers decide every difficult job must remain at the original price?
No. It addressed unchanged promised work and a coerced demand on its findings. An actual scope change or supported exception needs separate analysis.