An action in equity is a lawsuit that asks a court to order someone to do something, stop doing something, undo a transaction, or declare who has what rights, rather than simply pay money damages. Courts hear these claims when a dollar figure cannot fix the problem. The judge, not a jury, decides the case and has broad discretion to shape the remedy.
The label survives from a time when English courts of law and courts of equity were separate institutions. In the United States, the Federal Rules of Civil Procedure collapsed that split in 1938, and Rule 2 now states that “there is one form of action — the civil action.”1Office of the Law Revision Counsel. Federal Rules of Civil Procedure Rule 2 – One Form of Action The merger was procedural. The substantive rules — when equitable relief is available, who gets a jury, what defenses apply — still track the old divide.
What Counts as Equitable Relief
Equitable remedies are the tools a court uses when writing a check will not put the plaintiff in the right position. They share that trait; beyond it they vary widely.2LII / Legal Information Institute. Equitable Relief
Injunctions
An injunction is a court order compelling a party to act or forbidding them from acting. It is the most familiar equitable remedy and comes in three timeframes. A temporary restraining order holds the status quo for days or weeks. A preliminary injunction lasts through the litigation. A permanent injunction is entered as the final remedy after trial.
The Supreme Court’s test for a preliminary injunction, from Winter v. Natural Resources Defense Council, requires the plaintiff to show four things: likelihood of success on the merits, irreparable harm without the injunction, a balance of equities in the plaintiff’s favor, and that the injunction serves the public interest.3Justia. Winter v Natural Resources Defense Council Inc, 555 US 7 (2008) Irreparable harm means harm that money cannot adequately fix after the fact.4Legal Information Institute. Irreparable Harm
Federal Rule of Civil Procedure 65 adds one practical requirement. Before a court issues a preliminary injunction or temporary restraining order, it can make the moving party post a security bond to cover costs and damages to the other side if the injunction turns out to have been wrongly granted.5Cornell Law School Legal Information Institute. Federal Rules of Civil Procedure Rule 65 – Injunctions and Restraining Orders
When it comes to shaping a permanent injunction, courts also weigh the parties’ good faith, prior conduct, and public interest concerns like whether an order would shut down a business or affect a community.6Legal Information Institute. Injunction7LII / Legal Information Institute. Preliminary Injunction
Specific Performance
Specific performance forces a party to do exactly what they promised under a contract. Courts use it when the subject of the deal is unique or irreplaceable. Real estate is the standard example: every parcel is treated as one of a kind, so a seller who backs out can be ordered to transfer the property rather than write a damages check.
To get specific performance you have to show you performed your side of the bargain and that the contract terms are clear enough for a court to enforce. Courts generally will not order specific performance of personal service contracts, because compelling a person to work for a specific employer raises real liberty concerns. Damages, or a negative injunction preventing the person from working for a competitor, are the usual substitutes.
Rescission
Rescission unwinds a contract entirely and returns both sides to where they started. It is the fit when the contract itself is tainted by fraud, significant misrepresentation, undue influence, or a fundamental mistake about the subject matter. If you bought a business based on fabricated financials, rescission voids the deal rather than measuring damages against a hypothetical fair price.
Two conditions attach. You have to act promptly once you learn about the problem — keep performing or keep taking the benefits, and a court can treat that as ratification. You also have to return whatever you received under the contract, so no one walks away with a windfall.
Reformation
Reformation rewrites a written contract to reflect what the parties actually agreed to. It applies when a drafting mistake or mutual misunderstanding caused the document to miss the real deal. Rescission kills the contract; reformation saves it by fixing the error. The evidentiary bar is high — clear and convincing evidence of the prior agreement is required — and the strongest proof is often how the parties actually performed. Reformation is also available when one party was tricked into signing a document with different terms than agreed.
Constructive Trusts
A constructive trust is not a trust anyone chose to create. It is an order the court imposes to prevent unjust enrichment, treating the wrongful holder of property as a trustee who has to hand the asset to its rightful owner. Typical situations involve assets acquired through fraud, theft, or delivery to the wrong person. Like other equitable remedies, a constructive trust will not be imposed when an adequate legal remedy exists.8LII / Legal Information Institute. Constructive Trust
Declaratory Judgments
A declaratory judgment orders no one to do anything. It states who has what rights. That can be enormously practical when two parties disagree about whether a contract covers a situation, or whether an insurance policy applies to a loss, and neither wants to act on the wrong assumption. Federal courts can issue declaratory judgments under 28 U.S.C. § 2201 in any “case of actual controversy” — the dispute has to be real and concrete, not hypothetical.9Office of the Law Revision Counsel. 28 US Code 2201 – Creation of Remedy
One thing sets declaratory relief apart from other equitable remedies. The statute specifically provides that “the existence of another adequate remedy does not preclude a declaratory judgment that is otherwise appropriate.”10Legal Information Institute. Federal Rules of Civil Procedure Rule 57 – Declaratory Judgment You do not have to show that money damages would be inadequate.
The Threshold: No Adequate Remedy at Law
For every equitable remedy other than a declaratory judgment, the first question is whether money damages could fully compensate the plaintiff. If they could, the court will not step into equity. An adequate legal remedy is one that gives “complete relief with respect to the particular matter in controversy” and is “practical and efficient.”11Legal Information Institute. Adequate Remedy
Some situations clear the threshold easily. Real property is treated as unique, so a breach of a real estate contract routinely qualifies for specific performance. Ordinary commercial goods do not, because the buyer can source the same goods elsewhere.11Legal Information Institute. Adequate Remedy Where the harm is ongoing — a neighbor dumping pollutants on your land every day — no series of after-the-fact payments matches a court order that stops the dumping.
Who Decides, and How
The Seventh Amendment preserves the right to a jury trial “in Suits at common law, where the value in controversy shall exceed twenty dollars.” That phrase attaches the jury right to legal claims, not equitable ones.12Law.Cornell.Edu. Cases Combining Law and Equity When you seek equitable relief, a judge decides the case alone, weighing evidence, assessing credibility, and choosing the remedy. That gives the judge more flexibility than in a legal action, and it means the outcome is shaped by the judge’s assessment of fairness in ways a damages formula would not permit.
A judge handling an equity case can empanel an advisory jury under Federal Rule of Civil Procedure 39(c). The advisory verdict is not binding — the judge can accept it, reject it, or modify it — but it gives the court a second read on the facts.13Legal Information Institute. Federal Rules of Civil Procedure Rule 39 – Trial by Jury or by the Court
Defenses That Can Sink the Claim
Even a plaintiff who proves everything can lose an equity case on defenses that turn on their own conduct or timing. Equity is discretionary, and judges use these doctrines to deny relief when granting it would be unfair.
Unclean Hands
The clean hands doctrine bars equitable relief when the plaintiff has acted in bad faith or unconscionably in connection with the same dispute. The misconduct does not need to be criminal — a breach of good faith tied to the transaction is enough. But it has to connect to the subject matter of the lawsuit. Unrelated past bad acts do not count. Related maxims like “he who seeks equity must do equity” give judges a broader framework to weigh the plaintiff’s own behavior in the underlying transaction.14Legal Information Institute. Clean-Hands Doctrine
Laches
Laches is equity’s answer to unreasonable delay. A defendant raising laches has to show two things: that the plaintiff waited too long to bring the claim, and that the delay caused real prejudice — lost evidence, changed circumstances, or investments the defendant made in reliance on the plaintiff’s inaction. Courts weigh the length of the delay and whether there was any good reason for it. Laches is distinct from a statute of limitations, which imposes a hard deadline; laches is more flexible and more subjective, and it fills the gap for equitable claims that carry no explicit statutory cutoff.
Adequate Remedy at Law
A defendant can also press the threshold question as a defense: if money damages would fully compensate the plaintiff, the equitable claim fails no matter how strong its merits.11Legal Information Institute. Adequate Remedy
How the Case Moves
Procedurally an equity case looks like other civil litigation, with a few differences worth flagging.
The complaint identifies the equitable remedy sought and explains why money damages would not be enough. When the situation is urgent — a company about to destroy documents, a demolition set for next week — the plaintiff can seek a temporary restraining order or preliminary injunction at the outset, and the court may hold a hearing within days. Discovery then proceeds as usual: depositions, document requests, interrogatories. Trial is before the judge alone.
Enforcement comes through the court’s contempt power. Federal courts can punish contempt by fine, imprisonment, or both for “disobedience or resistance to [a court’s] lawful writ, process, order, rule, decree, or command.”15Office of the Law Revision Counsel. 18 US Code 401 – Power of Court Civil contempt is coercive and ends when the party complies. Criminal contempt is punitive, with fixed sanctions and a higher standard of proof. Courts often start with civil contempt to give the non-complying party a chance to obey before escalating.
Appeals in equity are reviewed deferentially. Because the trial judge exercised discretion in shaping the remedy, the appellate court asks whether that discretion was abused, not whether it would have decided the case the same way. There is one significant procedural shortcut. Under 28 U.S.C. § 1292, a party can immediately appeal a ruling that grants, denies, or modifies an injunction without waiting for final judgment. The right exists because injunctions can impose serious burdens right away, and waiting years for a final judgment to appeal would not be a meaningful remedy for a business ordered to shut down. Outside the injunction context, an interlocutory appeal requires the trial judge to certify that the order involves a controlling question of law with substantial ground for difference of opinion and that immediate appeal could materially speed the case.16Office of the Law Revision Counsel. 28 US Code 1292 – Interlocutory Decisions
The practical implication of deferential review is that getting the remedy right at the trial level matters. An appellate court can disagree with how the trial judge balanced the equities and still affirm, because “wrong” and “abuse of discretion” are different standards.