Unjust Enrichment Claims in New York: How to Recover When There's No Contract
Updated: 20 hours ago
Updated October 21, 2026
You wired $750,000 to a Brooklyn developer to buy out a co-investor's stake in a Bushwick warehouse project. The closing fell apart. The developer kept your money for nine months and used it to pay off unrelated debts. There's no signed purchase agreement — just emails, a term sheet, and a wire confirmation. Can you still get your money back?
Yes. That's exactly what unjust enrichment claims in New York are designed to address. When someone holds onto value that belongs to you (money, property, or the fruits of your labor) and there's no enforceable contract requiring its return, equity steps in. At Yassi Law, we use unjust enrichment claims to recover funds in deals that collapsed, services that went unpaid, and assets that were diverted to the wrong pocket. Here's how the doctrine works in New York, when courts will entertain it, and the strategic mistakes that get these claims dismissed before discovery.
Key takeaways
Unjust enrichment lets you seek the value of a benefit someone else unfairly kept when no enforceable contract covers it.
You must show the other party was enriched at your expense and that fairness requires giving the benefit back.
There must be a real connection between you and the other party; a distant stranger usually cannot be sued.
If a valid written contract covers the same subject, courts usually dismiss an unjust enrichment claim.
The deadline often runs six years from when the enrichment happened, not when you discovered it, so act early.
What is an unjust enrichment claim in New York?
An unjust enrichment claim in New York is an equitable cause of action that lets you recover the value of a benefit you conferred on another party when keeping that benefit would be unfair. It's not a breach of contract claim. It's not a fraud claim. It sits in the gap where one party has something that, in good conscience, belongs to someone else.
To plead it, you must allege three things: the defendant was enriched, the enrichment came at your expense, and equity and good conscience require restitution. Courts also look at the relationship between the parties: there must be a connection that's not too attenuated. In Georgia Malone & Co. v. Rieder, 19 N.Y.3d 511 (2012), the Court of Appeals applied that requirement and dismissed a broker's unjust enrichment claim against a rival brokerage because the two firms had no dealings with each other. A pure stranger who happens to benefit from your work probably can't be sued for unjust enrichment unless there's some link tying them to the transaction.
The doctrine traces back centuries to the law of quasi-contract. Courts created it so that a wrongdoer couldn't hide behind the absence of a signed document. If you fix your neighbor's roof at his request and he refuses to pay because you never wrote up a contract, equity allows recovery. The same principle scales up to large commercial deals where parties exchange value before paperwork is finalized.
One thing to understand from the start: New York courts have narrowed unjust enrichment in the last fifteen years. Under well-established New York law, unjust enrichment is not a catchall remedy for every situation that feels unfair. It exists to fill gaps, not to duplicate other claims. If you can sue for breach of contract, fraud, or conversion on the same facts, you usually cannot also sue for unjust enrichment — at least not as a standalone count that survives a motion to dismiss.
When can you bring unjust enrichment claims in New York alongside a breach of contract case?
You can bring unjust enrichment claims in New York alongside a breach of contract case only when there is a genuine dispute about whether a valid, enforceable contract governs the subject matter. It is well established that a quasi-contract claim cannot stand when the parties have an express written contract covering the same subject. Courts dismiss those duplicative counts routinely. In Blank v. Acker, 2025 NY Slip Op 05059 (App. Div. 2d Dep't 2025), a plaintiff who paid to improve a house could not recover for those improvements in unjust enrichment. The leases he signed addressed improvements and said they revert to the landlord when the lease ends.
That rule has a major exception. CPLR § 3014 expressly allows pleading in the alternative. So if you genuinely don't know whether the contract is enforceable (maybe the defendant claims it was never signed, maybe statute of frauds is in play, maybe a key term is missing), you can plead breach of contract as Count One and unjust enrichment as Count Two. The complaint should make clear that the unjust enrichment count is an alternative theory in case the contract claim fails. The Second Department applied this exception in Matter of Toyota Lease Trust v. Perfection Auto Serv., Inc., 2024 NY Slip Op 04560 (App. Div. 2d Dep't 2024). It held that a party may plead quasi-contract claims as an alternative when there is a bona fide dispute over whether the contract is valid or enforceable, even if no one disputes that the contract exists.
The alternative-pleading exception only works if the complaint actually flags the dispute, and plaintiffs often overlook this. If you just plead both counts side by side without explaining why the contract might fail, judges in the Commercial Division will lop off the unjust enrichment count on a CPLR 3211 motion and you'll never see discovery on it.
The exception also applies when a contract exists but does not cover the specific benefit you conferred. Imagine you have a supply agreement with a Long Island City distributor for boxes. The distributor also asks you, off-contract, to handle emergency rush shipments at no agreed price. Those rush shipments are outside the four corners of the supply agreement. An unjust enrichment claim for the value of the extra services can survive even though the supply contract is otherwise valid. We've explained the related pleading mechanics in our post on pleading fraud with particularity under CPLR 3016(b), where alternative theories run into similar dismissal traps.
In our practice, we're seeing more disputes over contracts drafted with AI tools. AI can produce a polished generic contract, but if you don't know what you need it to say, it may leave out the terms that protect you, and that gap has become a real source of litigation.
What's the difference between unjust enrichment and quantum meruit in New York?
Unjust enrichment and quantum meruit are similar legal claims in New York, but they serve different purposes.
Quantum meruit applies when someone performs services in good faith and expects payment, even without a written contract. It focuses on the value of the work performed.
Unjust enrichment is broader and applies when one party unfairly benefits from money, property, services, or another benefit at someone else’s expense.
The two claims overlap, and a contract can defeat both. In Auquilla v. Villa, 2025 NY Slip Op 02053 (App. Div. 2d Dep't 2025), the Second Department set out the elements of each claim. It held that a lender whose mortgage agreement governed its right to recover property-preservation costs could not recover those costs under either theory.
When Should Each Claim Be Used?
Use quantum meruit when:
Services were provided without a written agreement
Payment was expected
The other party accepted the work
Use unjust enrichment when:
Money or property was unfairly retained
Someone benefited without proper payment or authorization
What's the statute of limitations on unjust enrichment claims in New York?
The statute of limitations on unjust enrichment claims in New York is generally six years under CPLR § 213(1), the catch-all six-year period for actions where no specific limitation is prescribed. But the deadline isn't always six years — courts borrow the limitations period of whatever underlying claim the equitable count parallels.
If the unjust enrichment claim mirrors a tort like fraud or conversion, courts may apply the shorter three-year period under CPLR § 214. If the underlying conduct sounds in fraud, the six-year fraud period may apply, or the two-year discovery rule for fraud, whichever expires later. The Court of Appeals has not laid down a single rigid rule; the analysis is fact-specific and looks at the gravamen of the claim.
For a clean unjust enrichment claim seeking restitution of money — like the $750,000 Bushwick scenario above — six years is the right number to plan around. The clock generally starts running when the enrichment occurred, not when you discovered it. That's a meaningful distinction. If you wired funds in 2020 and discovered the diversion in 2025, you have one year left to sue, not six. We covered the analogous timing issues in our post on conversion claims for stolen money and business assets.
Tolling can extend the deadline. If the defendant fraudulently concealed the wrongdoing, equitable estoppel may pause the clock. If the defendant left New York for a significant period, CPLR § 207 may toll the statute during the absence. But don't count on tolling to save a stale case. The best practice is to identify the enrichment event early and file well before any limitations period could plausibly run.
How do New York courts measure damages in unjust enrichment claims?
New York courts measure damages in unjust enrichment claims by the benefit received by the defendant, not by the loss suffered by the plaintiff. This is the central feature that distinguishes restitution from compensation. In a breach of contract case you recover what you lost. In an unjust enrichment case you recover what the defendant unjustly gained.
Those two numbers are often the same. If you wired $750,000 to the Bushwick developer, the developer was enriched by $750,000 and you were out $750,000. Easy math. But the numbers can diverge dramatically. Imagine you spent $200,000 building software prototypes for a Midtown fintech company under no written contract. The company then deployed your code in a product line that generated $4 million in revenue over two years. Your reliance damages are $200,000. An unjust enrichment claim looks instead at what the company gained, which can include the profits attributable to your contribution, because the law focuses on what the defendant unjustly retained.
Courts also have flexibility to order equitable remedies beyond money. A constructive trust can be imposed when the defendant holds specific property that should belong to you. An accounting can be ordered when the defendant has commingled funds and the precise amount of enrichment isn't yet known. These remedies pair well with unjust enrichment because both spring from the same equitable principle: a wrongdoer should not keep the fruits of unfairness.
Prejudgment interest is available on unjust enrichment awards under CPLR § 5001 at the statutory nine percent rate. On a claim that takes years to litigate, interest can add a meaningful amount on top of the principal, which is one more reason to file early. The Commercial Division routinely awards prejudgment interest from the date of the enrichment, not the date of filing.
One strategic note for defendants. If you're on the receiving end of an unjust enrichment claim, your strongest defenses usually aren't substantive — they're about the existence of an express contract that governs the subject matter, the statute of limitations, or the lack of a sufficient relationship under Mandarin Trading. The earlier you raise these defenses, the better your shot at a CPLR 3211 dismissal before discovery costs balloon. Our post on stopping business harm before trial covers parallel pretrial mechanics that often run alongside these dismissal motions.
Frequently Asked Questions
Can I sue for unjust enrichment if I already have a signed contract?
Usually no, but with important exceptions. If a valid written contract covers the same subject matter, New York courts will dismiss a duplicative unjust enrichment claim under the rule in Clark-Fitzpatrick. You can plead it in the alternative under CPLR 3014 if there's a genuine dispute about contract validity, or if the contract doesn't cover the specific benefit at issue.
Do I have to prove the defendant acted in bad faith to bring an unjust enrichment claim?
No. An unjust enrichment claim doesn't require fraud, intent, or bad faith. It only requires that retaining the benefit would be against equity and good conscience. That said, evidence of bad-faith conduct often strengthens your case and supports equitable remedies like constructive trust or punitive-flavored fee awards in egregious circumstances.
Can a third party who wasn't part of the original transaction be sued for unjust enrichment?
Sometimes, but only if there's a sufficient connection. The relationship between plaintiff and defendant cannot be too attenuated. A third party who knowingly received and retained funds traceable to your loss may be liable, but a pure stranger who happens to benefit downstream usually isn't. The closer the link, the stronger the claim.
Does unjust enrichment work when piercing the corporate veil?
Often yes. If a controlling shareholder drained value from a corporation to himself personally, an unjust enrichment claim against the individual can pair with a veil-piercing theory. We explained those mechanics in detail in our post on when New York courts pierce the corporate veil. The combined approach lets you reach the individual's personal assets while sidestepping the limitations of pure tort theories.
The bottom line on unjust enrichment claims in New York
Unjust enrichment claims in New York remain a powerful equitable tool — but a narrow one. They work best when no enforceable contract governs the transaction, when the defendant holds something of yours that fairness requires returning, and when you plead the elements with care and avoid duplicating other counts. The case law since Corsello has tightened the doctrine, and judges in the Commercial Division will dismiss sloppy claims at the pleading stage. Filed correctly, though, an unjust enrichment count can seek the return of large transfers, support a constructive trust over diverted property, and reach assets that conventional contract or tort theories can't touch.
If you or your business is trying to recover money, property, or the value of services transferred without a binding contract, the team at Yassi Law PC is ready to help. Call us today at 646-992-2138 for a consultation.
This article is for informational purposes only and does not constitute legal advice. Although I am an attorney, I am not your attorney, and reading this article does not create an attorney-client relationship. Laws vary by jurisdiction and may have changed since the publication of this article. For advice specific to your situation, consult a qualified attorney.
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