Also known as:merger clauses · integration clause · entire agreement clause
Written by attorneys · grounded in primary & secondary sources — see below
A contractual provision declaring that the writing contains the entire agreement between the parties and supersedes all prior negotiations or representations. The clause establishes the writing as a complete integration. It triggers the parol evidence rule to bar evidence of prior or contemporaneous terms that would add to or contradict the writing.
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How it applies
Common Examples
3
Access Road Promise After Closing
North Ridge Wireless contracted to buy a rural parcel from Olivia Lane. The purchase agreement contained a merger clause and granted only the hilltop. Lane's agent had texted that he would arrange a permanent access road. At closing Lane delivered a deed conveying only the hilltop. After closing North Ridge cannot enforce the road promise because the merger clause and deed control.
Haunted House Disclosure Dispute
Meredith Maxwell bought a house from Maurice Marshall. The contract contained a merger clause stating it was the complete agreement. Marshall had advertised the house as haunted but the deed and contract were silent on that fact. After closing Maxwell cannot introduce evidence of the advertising to rescind because the merger clause bars prior representations.
Stambovsky v. Ackley572 N.Y.S.2d 672
Price Adjustment Claim in Supply Deal
Mirage Hotels contracted with Morgan Financial for fuel supply. The writing contained a merger clause and fixed prices. Earlier trade usage allowed price adjustments in declining markets. After signing Mirage cannot introduce evidence of that usage to vary the fixed-price term because the merger clause establishes complete integration.
Nanakuli Paving & Rock Sales, Inc. v. Shell Oil Co.664 F.2d 772 (9th Cir. 1991)
Common questions
Frequently Asked
4
Does a merger clause conclusively establish that a writing is fully integrated?+
A merger clause is strong evidence of complete integration but is not always conclusive. Courts treat it as one factor among others when the writing appears complete on its face. The clause strengthens the presumption that the parties intended the writing to be the final and exclusive statement of their agreement.
Supporting sources
Can a merger clause bar a fraud claim based on prior misrepresentations?+
A merger clause does not automatically bar a fraud claim. Some courts hold that a specific disclaimer of reliance can defeat justifiable reliance. Other courts refuse to enforce a merger clause when it would shield intentional fraud. The outcome depends on the specificity of the clause and the jurisdiction's approach to the parol evidence rule in fraud cases.
How does a merger clause interact with the doctrine of merger into the deed in real estate transactions?+
A merger clause in the purchase contract bars enforcement of prior negotiations under the parol evidence rule. After closing the separate doctrine of merger into the deed extinguishes contract promises not restated in the deed. Both doctrines limit post-closing claims unless an exception such as fraud or a collateral agreement applies.
Supporting sources
Does a merger clause prevent evidence of course of performance or usage of trade under the UCC?+
A merger clause does not necessarily exclude evidence of course of performance, course of dealing, or usage of trade. The UCC permits such evidence to explain or supplement a writing even when the writing contains a merger clause. Courts may still admit the evidence unless the clause expressly addresses those sources of meaning.
Supporting sources
said that there were no oral
agreement
s. The court explained that its ruling “reflects the reality of the marketplace and avoids the overly legalistic interpretations which the Code seeks…
, which provides that the box-top license is the final and complete expression of the terms of the parties's
agreement
. (5) The box-top license states: "Opening this package indicates your…
or
integration clause
stating that “[t]his
Agreement
constitutes the
entire
agreement
between the parties concerning the subject matter hereof.” SmartDownload’s license terms contained the same
clause
. Such…
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