Also known as:promises implied in fact · implied-in-fact promise · implied in fact promises · implied promise · implied-in-fact contract
Written by attorneys · grounded in primary & secondary sources — see below
A promise inferred from the parties' conduct and the circumstances of their transaction rather than from explicit words. The law treats the implied promise the same as an express promise when determining formation, performance, and the rights of successors after a transfer.
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How it applies
Common Examples
6
Landlord Services After Sale
Ridgeway College leased classrooms to NightStar Tutoring under a written lease silent on services. For three years Ridgeway supplied evening security and cleaning while NightStar scheduled classes and set prices expecting those services. Ridgeway sold the building to Apex Education. Apex cut the services. NightStar's assignee sued Apex for breach. The court found an implied promise arising from the original transaction and held Apex bound as successor.
Exclusive Agency Arrangement
Lucy granted Wood exclusive rights to market her designs for at least one year. Wood invested time and resources in the agency without any written promise from Lucy to use reasonable efforts. When Lucy placed her own endorsements, Wood sued for breach. The court held that the grant of exclusivity and surrounding circumstances supported an implied promise by Lucy to cooperate, creating an enforceable contract.
Wood v. Lucy, Lady Duff-Gordon222 N.Y. 88, 118 N.E. 214 (1917)
Employment Termination Dispute
Interactive Data hired Foley under an agreement that mentioned termination only for cause in its handbook. Foley performed for years without any express statement that the handbook terms were contractual. When the company fired him without cause, Foley sued. The court examined the parties' conduct and course of dealing to decide whether an implied promise limited termination rights.
Foley v. Interactive Data Corp.47 Cal. 3d 654, 254 Cal. Rptr. 211, 765 P.2d 373
Distribution Agreement Assignment
Nexxus granted Sally Beauty an exclusive distributorship. Sally Beauty later assigned the contract to a competitor of Nexxus. Nexxus refused to continue supplying the assignee. Sally Beauty sued. The court looked to the original parties' conduct and circumstances to determine whether an implied promise limited assignment to non-competitors.
Sally Beauty Co. v. Nexxus Products Co.801 F.2d 1001 (1986)
Third-Party Devise Enforcement
Mrs. Beman devised property to her husband on the condition that he pay a sum to her niece. The husband accepted the devise but later refused payment. The niece sued the estate. The court held that the husband's acceptance of the conditioned devise created an implied promise enforceable by the intended beneficiary.
Seaver v. Ransom224 N.Y. 233, 120 N.E. 639 (1918)
Cohabitant Business Contributions
Sue Ann Watts and James Watts lived together for twelve years, jointly operating a business and acquiring assets. Sue Ann contributed labor and funds without any written agreement. After separation she sought an accounting and division of property. The court examined the parties' conduct and course of dealing to decide whether an implied promise supported her claims.
Watts v. Watts137 Wis. 2d 506, 405 N.W.2d 303 (1987)
Common questions
Frequently Asked
5
How does a court determine whether an implied promise exists in a lease silent on a service?+
A court examines the landlord's prior conduct, the tenant's reliance, and the overall circumstances of the lease transaction. When those facts show the service formed part of the bargain, an implied promise arises and receives the same treatment as an express covenant for purposes of successor liability.
Supporting sources
Does an implied promise bind a successor landlord after the original landlord sells the property?+
Yes. Once an implied promise is found from the facts and circumstances of the lease transaction, the law treats it identically to an express promise. The burden and benefit therefore run with the land to the purchaser of the reversion and to the assignee of the leasehold.
Supporting sources
Can parties form a contract through conduct alone without any spoken or written words of promise?+
Yes. Mutual assent may be manifested by conduct even when no identifiable offer and acceptance can be pinpointed. Courts infer an implied promise when the parties' actions demonstrate agreement to the essential terms of the exchange.
Supporting sources
When an assignment uses broad language such as 'all rights under the contract,' what promise does the assignee make?+
The assignee's acceptance of the broad assignment carries an implied promise to perform the assignor's remaining duties. That promise is enforceable by the other original party to the contract.
Supporting sources
Does an implied promise require proof of a formal writing or explicit statement of intent?+
No. An implied promise arises from objective manifestations of assent through conduct and surrounding circumstances. No signed writing or spoken words are necessary when the parties' behavior demonstrates agreement.
Supporting sources
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implied-in-fact contract
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. The distinction between an
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on a valuable consideration to make provision for the third party by will is discernible but not…
ContractsFormation of contracts · Mutual assent (including offer and acceptance, and unilateral, bilateral, and implied-in-fact contracts)UBEFoundational