Unjust Enrichment in Florida: The Elements and How Courts Apply Them

October 23 2026

Matthew Fornaro

Business Litigation Attorney · Coral Springs, FL

Matthew Fornaro is a Florida business law attorney serving Coral Springs, Parkland, and Broward County. He represents small businesses in commercial litigation, contract disputes, and business torts. Schedule a consultation →

Key Takeaways

Florida business law protects companies from unfair competition, contract breaches, and partner disputes.
Acting early saves time, money, and business relationships.
An experienced business attorney helps you assess risk and choose the right legal strategy.

To win an unjust enrichment claim in Florida, you must prove four things. You conferred a benefit on the defendant. The defendant knew about it. The defendant accepted and kept it. And it would be inequitable for the defendant to keep it without paying you its value. Florida appellate courts state the test the same way, for example in Della Ratta v. Della Ratta and a more recent Third District opinion.

The four elements are the easy part. The hard questions come afterward. Is there a contract that blocks the claim? Did the benefit come from you directly? Have you waited too long? This guide walks through each, using Florida case law and the business situations where these claims actually arise.

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TL;DR

Florida requires four elements: a benefit conferred, the defendant’s knowledge of it, voluntary acceptance and retention, and circumstances that make retention inequitable without payment.
Unjust enrichment is a quasi-contract remedy. It fills a gap where no enforceable agreement covers the dispute, so an express contract on the same subject usually defeats it.
The benefit generally has to flow directly from you to the defendant, not through a third party.
Florida’s four-year limitations period under section 95.11(3) is the deadline most often cited for these claims. Confirm how it applies to your facts before you wait.
Plead it as an alternative to breach of contract when the existence or scope of a contract is disputed.

What unjust enrichment actually is
The four elements, one by one
The express contract rule
The benefit must come directly from you
Unjust enrichment versus quantum meruit
The statute of limitations
Defenses to expect
What recovery looks like
Our perspective
A practical checklist before you file
How we help
FAQ
Sources

What unjust enrichment actually is

Unjust enrichment is an equitable doctrine. Florida courts describe it as a “contract implied in law” or quasi-contract: a legal fiction that lets a court order payment when someone has been enriched at another’s expense, even though the parties never made a deal covering it. The Florida Bar’s treatment of the standard jury instruction frames it the same way: the claimant must show it gave a benefit to the defendant, and that the defendant should pay for it.

That is different from enforcing a bargain. In a breach of contract case, the court holds a party to the terms it negotiated. In an unjust enrichment case, there are no negotiated terms to enforce. The court asks only whether keeping the benefit without paying is unfair, and the usual measure of recovery is the reasonable value of what the defendant received.

For a business owner, that distinction matters in practice. If you can point to a signed agreement, your case is probably a contract case. If you did the work on a handshake, on a deal that fell through, or outside the scope of the paper you signed, unjust enrichment may be the theory that fits. Our guide to how Florida courts tell breach of contract from business torts covers how the choice of claim shapes strategy.

The four elements, one by one

1. You conferred a benefit on the defendant

The benefit does not have to be cash. It can be services, goods, labor, access, a customer list, an improvement to property, or money paid by mistake. What matters is that the defendant received something of value that came from you.

Examples we see in business disputes:

A consultant builds a sales channel for a company on the strength of a promised equity stake that was never papered.
A contractor performs extra work at an owner’s request that was never added to the written scope.
A founder funds startup expenses that the other founder’s company later absorbs.
A vendor delivers goods after the purchase order expired, and the buyer keeps and resells them.

2. The defendant knew about the benefit

Knowledge is rarely the contested element. A company that approved the invoices, attended the meetings or used the work product usually cannot say it did not know. Emails, texts, purchase orders and payment records tend to settle this element, which is why preserving them early matters.

3. The defendant voluntarily accepted and retained it

The defendant must have accepted the benefit or kept it when it could have returned it or refused it. A party who did not ask for the work and could not have declined it is in a weaker position to be charged. A party who watched the work happen, took the result and said nothing is in a stronger one.

Watch the timing. If a defendant objected at the outset and you went ahead anyway, the defense will argue you were a volunteer, and a volunteer generally cannot demand payment for a benefit nobody agreed to receive.

4. It would be inequitable to keep the benefit without paying

This is the fairness element, and judges treat it as a question of the whole picture. The Fourth District has described the doctrine as one that prevents the wrongful retention of a benefit in violation of good conscience and fundamental principles of justice, in a case involving a hospital system. Courts look at what the parties expected, whether you were paid anything, whether the defendant profited, and whether you acted in good faith.

Expect the defense to argue that you were already compensated, that you did the work for your own purposes, or that you took a business risk and it did not pay off. Losing a bet is not the same as being shortchanged.

The express contract rule

The most common reason an unjust enrichment claim fails in Florida is that a contract already governs the subject. Courts will not imply a contract in law where an express one exists, because it would let a party rewrite a bargain. The Fifth District put the other side of the rule plainly: when there is no enforceable express or implied-in-fact contract, a party may recover on a quasi-contract claim such as unjust enrichment.

In practice, that creates three scenarios.

Situation	Likely result for an unjust enrichment claim
A valid written contract covers the exact benefit	Usually barred. Sue for breach of contract.
The contract is disputed, void, unenforceable or never formed	Can be pleaded in the alternative.
The benefit falls outside what the contract covers	May proceed, but the defendant will argue the contract speaks to it.

That second row is why lawyers plead both theories. You do not have to choose before discovery shows whether the contract holds up. If the court finds the agreement unenforceable, the quasi-contract claim is still alive. If the court finds it enforceable, you go forward on breach.

If you are unsure which side of the line you are on, our Florida contract dispute FAQ and our guide to how to enforce a contract in Florida are good places to orient yourself before a first call.

The benefit must come directly from you

Florida courts read the first element to require a direct benefit. In Kopel v. Kopel (2017), the Florida Supreme Court held that a plaintiff must have directly conferred the benefit on the defendant, and that indirect benefits that flow through third-party dealings generally do not qualify.

Recent appellate decisions keep applying that limit. In one Third District opinion reviewing summary judgment, the court’s analysis turned on whether the record established that a direct benefit was conferred. The practical lessons:

A subcontractor who works for a general contractor will have difficulty claiming unjust enrichment against the property owner, because the owner’s benefit came through the general contractor. Construction disputes are where we see this most. If that is your situation, see our work on construction litigation.
A lender or investor who dealt with one entity may struggle to reach a related entity that ended up with the value. A Florida bank lost at trial on this kind of theory in Flatirons Bank v. Alan W. Steinberg Limited Partnership, where the trial court found the bank had not established its claim after an evidentiary hearing.
A founder who contributed to one company usually cannot sue a different company for the value it gained from the first one, unless the facts show the benefit passed to it directly.

If your chain of dealing includes an intermediary, plan around this early. Sometimes the right defendant is the intermediary, and sometimes the claim needs a different theory such as breach of contract, fraud or a statutory remedy.

Unjust enrichment versus quantum meruit

The two terms get blurred, and Google results mix them. Both are quasi-contract concepts. Quantum meruit generally refers to payment for the reasonable value of services rendered. Unjust enrichment is the broader label and covers any benefit, including money, goods, property or services. Florida’s elements and defenses overlap heavily, and for services cases the two claims are often pleaded together. The label matters less than whether you can prove the elements and show the value of what you provided.

The statute of limitations

Many readers ask how long they have. Florida’s limitations statute is section 95.11, and the four-year period in subsection (3) is the one generally applied to unjust enrichment claims, which are treated as actions on an obligation not founded on a written instrument. Read the current text of the statute directly, because the legislature amends this section and subsection lettering has shifted over the years.

Three cautions:

When the clock starts is a fact question. It generally runs from when the cause of action accrues, which can be disputed. Do not assume it starts on the day you finish the work or the day you discover the problem.
A related claim may have a different deadline. Written contracts, fraud, and statutory claims follow other periods under the same statute, so a claim pleaded in the alternative may not expire on the same date.
Delay costs evidence even before it costs the claim. Witnesses move, email accounts are closed and records are discarded under retention policies.

If you are anywhere near four years from the event, speak with a Florida business litigation attorney now rather than after you finish negotiating.

Defenses to expect

A defendant in an unjust enrichment case will typically raise some mix of the following:

An express contract governs. The most common and often the strongest.
No direct benefit. The value reached the defendant through someone else.
Voluntary conduct or gift. You provided the benefit without expecting payment.
Payment already made. The defendant argues the benefit was paid for, or offset by what you received.
Unclean hands. The defendant says your own misconduct disqualifies you from an equitable remedy, because the claim is equitable.
Limitations. The period expired.

Build your file with these in mind. Show that you expected payment, that the defendant knew it and that no one paid.

What recovery looks like

The typical measure is the reasonable value of the benefit conferred, not the profit you hoped to make. If you can show the market rate for your services or the cost of the goods, that evidence will anchor the number. In some cases a court may order the defendant to give up gains obtained at your expense. Unjust enrichment will not generally deliver the benefit of a bargain you never made, such as lost future profits under a deal that was never signed.

Attorney’s fees are another planning point. Fees in Florida generally require a contract or statute that provides for them, so a pure quasi-contract claim may not carry fee-shifting. Our explainer on Florida prevailing party fees shows how that changes settlement leverage.

Our perspective

Most unjust enrichment disputes we are asked about began with a good relationship and a missing document. Two business people agreed on a scope, started work and trusted each other to finalize the paperwork later. Eighteen months on, the relationship has soured and there is no agreement to point to.

Three things follow from that. First, treat unjust enrichment as a safety net, not a plan. It is a stop-gap remedy for when the contract is missing or fails, and the better path is always a clear written agreement before you spend money or time. Second, when you are already in the dispute, plead the contract and the quasi-contract theory together so the case does not turn on a single legal label. Third, move on evidence immediately: emails, invoices, time records, proof of the value the other side received.

We also encourage clients to consider early resolution before litigation hardens positions. A demand letter, mediation or a negotiated payment can often recover the value in far less time than a trial. Our piece on early resolution techniques for Florida contract disputes lays out how we approach it.

— Matthew

A practical checklist before you file

Gather the paper trail. Emails, texts, purchase orders, invoices, drafts of agreements, payment records.
Check for any contract. Read every document that touches the subject, including terms on invoices and online portals.
Map who got the benefit. If it went through a third party, evaluate that link carefully.
Put a value on it. Market rates, time records and receipts matter more than estimates.
Calendar the deadline. Do not guess when the limitations period began.
Consider a demand. A well-documented demand letter sometimes ends the matter.

How we help

If you believe another business has kept the value of your work, money or property, or you have been served with an unjust enrichment claim, we can review the facts and the documents and tell you plainly how strong the case is. Our business litigation practice represents small businesses, startups and entrepreneurs across South Florida, and where a negotiated outcome makes sense, we also handle arbitration and mediation. Matthew Fornaro has more than 20 years of experience and an AV® Preeminent rating.

FAQ

What are the three elements of unjust enrichment?

You will often see a short version with three elements: a benefit conferred, the defendant’s appreciation or knowledge of it, and inequitable retention without payment. Florida courts usually state four, splitting acceptance and retention out as its own element. The substance is the same.

Can I sue for unjust enrichment if there is a written contract?

Usually not on the subject the contract covers. Florida courts generally will not imply a contract where an express one governs. If the contract’s existence, validity or scope is disputed, you can plead unjust enrichment as an alternative claim.

What is the statute of limitations for unjust enrichment in Florida?

Florida generally applies a four-year period under section 95.11(3). When the clock starts depends on the facts, so have an attorney confirm the date before you rely on it.

Do I have to prove the defendant did something wrong?

No. Unjust enrichment focuses on whether keeping the benefit is unfair, not on wrongdoing. Bad conduct can strengthen the fairness element, but you can succeed where the defendant simply took the value and did not pay.

Can I recover from someone who benefited indirectly?

Generally not. Florida requires that you directly conferred the benefit on the defendant, so value that reached them through a third party often fails the first element. Another theory or a different defendant may fit better.