A common law right is a legal protection that comes from judges’ decisions in past cases rather than from a statute passed by a legislature. These rights grew out of centuries of English court rulings, were adopted by nearly every U.S. state after independence, and still give you the ability to sue, defend yourself, or hold someone accountable in situations where no written law directly addresses what happened. Self-defense, the right to be free from unwanted physical contact, protection against trespass and nuisance, the ability to enforce a contract, privacy against intrusion, and the right to recover for someone else’s carelessness are all common law rights.
Where Common Law Rights Come From
After independence, each state needed a working legal system right away. Rather than invent one, states passed reception statutes that formally adopted English common law as the default, except where it conflicted with the state’s own constitution or legislation. Those statutes are still on the books in most states. California’s Civil Code, for instance, declares that the common law of England is the rule of decision in state courts unless it conflicts with the U.S. Constitution or California statutes. Similar provisions exist across nearly every other state.
Louisiana is the exception. Because of its French and Spanish colonial history, Louisiana uses a civil law system built on codified statutes rather than judge-made precedent, and its Civil Code governs private law in the state. If your dispute is in Louisiana, the rights described below apply differently or may not apply at all in the same form.
The Main Common Law Rights You Have
Personal Rights
Self-defense is one of the oldest common law protections. It lets you use reasonable force to protect yourself when you face an immediate physical threat. The force has to be proportional to the danger, and you generally can’t be the one who started the fight. If those conditions are met, self-defense shields you from both criminal prosecution and civil liability for the harm you caused. Every state recognizes some version of it, though the details vary, especially around whether you have to retreat before using force.
Bodily integrity is the related right to decide what happens to your own body. Courts have long held that a competent adult cannot be subjected to unwanted physical contact or medical procedures without informed consent, including the right to refuse life-saving treatment. This principle underpins modern informed consent rules in healthcare and is the basis of a battery claim when someone touches you without permission.
Property Rights
Trespass lets you bring a claim against anyone who enters your land without authorization, even if they cause no damage. The unauthorized entry itself is the violation. Nuisance law protects your ability to use and enjoy your property by letting you take action against neighbors or businesses whose activities unreasonably interfere with that enjoyment. Courts weigh the severity of the interference, how long it has lasted, and whether the activity serves a useful purpose before deciding whether something qualifies as a nuisance.
Conversion protects your personal belongings. If someone takes your property and refuses to return it, sells it, or substantially damages it without your consent, you can sue. You have to show you had a legal right to the property, the other person intentionally interfered with your possession, and their actions caused you to lose it. Conversion traditionally applies to physical items like vehicles, equipment, and electronics, though some courts have extended it to intangible property merged into a physical form, such as stock certificates.
Contract Rights
Breach of contract is probably the most common type of common law claim filed in American courts. To win, you prove four things: a valid contract existed, you held up your end, the other side failed to perform, and that failure caused you actual financial harm. Courts developed these elements over centuries of commercial disputes, and they remain the standard test in nearly every jurisdiction. Written contracts are easier to enforce, but oral agreements can also be binding under common law if you can prove the terms were agreed on.
Privacy Rights
Privacy protections under common law developed later than property or contract rights, but they are firmly established. Courts recognize several distinct privacy violations: intruding on someone’s solitude or private affairs, publicly disclosing embarrassing private facts, placing someone in a false light through misleading publicity, and using someone’s name or likeness without permission for commercial gain. These judge-made protections fill gaps where no statute addresses a specific grievance, and they have grown more important as technology creates new ways to surveil, record, and expose private information.
Negligence
Negligence is the common law’s workhorse for accidents and carelessness. To win, you prove the other party owed you a duty of care, they breached that duty, the breach actually caused your injury, and you suffered real harm. Car accidents, slip-and-fall injuries, medical malpractice, and product defects all run through this framework. The flexibility of the four-part test is the point: judges don’t need a specific statute prohibiting every type of careless behavior, because duty, breach, causation, and damages adapt to nearly any factual scenario.
How Precedent Decides Whether Your Right Applies
Common law rights depend on the doctrine of stare decisis, Latin for “to stand by things decided.” When a higher court rules on a legal issue, that decision binds all lower courts in the same jurisdiction. A federal district court in New York has to follow rulings from the Second Circuit, and every federal court has to follow the U.S. Supreme Court. This hierarchy keeps the law predictable. You can look at how courts have ruled on similar facts and make a reasonable prediction about how your case will come out.
Not all precedent carries the same weight. Decisions from courts outside your jurisdiction are persuasive authority rather than binding authority. A court in one state might find another state’s reasoning compelling but isn’t required to follow it. That distinction matters when your legal question hasn’t been addressed by your own jurisdiction’s courts.
Stare decisis is a strong presumption, not an unbreakable rule. Courts can overturn their own precedent when circumstances warrant it, and the U.S. Supreme Court has described stare decisis as a “principle of policy” rather than an “inexorable command.”1Congress.gov. The Supreme Court’s Overruling of Constitutional Precedent Courts can also sidestep precedent without formally overturning it by “distinguishing” the case, pointing to factual differences that make the old rule inapplicable.
When a Statute Can Take a Common Law Right Away
Common law sits below statutory law. When a legislature passes a statute that directly conflicts with a judge-made rule, the statute wins. This power is called abrogation. A legislature can replace, narrow, or abolish a common law right entirely if it does so clearly and intentionally. Workers’ compensation laws are the classic example: they replaced the common law negligence system for workplace injuries with a no-fault administrative process, eliminating employees’ right to sue their employers in tort but guaranteeing benefits regardless of fault.
Courts push back on this power through a well-established rule of interpretation. If a statute could be read to either preserve or eliminate a common law right, judges choose the reading that preserves it. The legislature’s intent to change the common law has to be unmistakable. Ambiguous language gets resolved in favor of the existing right.
Federal law adds another layer. Under the Supremacy Clause, a valid federal statute can displace state common law when the two conflict. This is called federal preemption, and it can be explicit, where Congress says federal law occupies a field, or implied, where federal regulation is so comprehensive that no room is left for state rules. Preemption disputes come up often in product safety, pharmaceuticals, and banking, where federal agencies have built detailed regulatory frameworks that can override state tort claims.
One more point about federal courts. There is no general federal common law. The Supreme Court established this in Erie Railroad Co. v. Tompkins in 1938, holding that federal courts hearing cases between citizens of different states must apply the law of the relevant state rather than create their own common law rules.2Justia Law. Erie Railroad Co. v. Tompkins, 304 U.S. 64 (1938) A narrow band of federal common law still exists in areas tied to uniquely federal interests, most notably maritime and admiralty law.3Constitution Annotated. ArtIII.S2.C1.12.1 Overview of Admiralty and Maritime Jurisdiction
What You Can Actually Recover
Money Damages
The most common remedy in a common law lawsuit is monetary damages. Compensatory damages aim to put you back in the financial position you would have been in if the wrong hadn’t happened. In a contract case, that means the value of what you were promised but didn’t get. In a personal injury case, it covers medical bills, lost wages, and compensation for pain. Punitive damages are rarer. They punish especially reckless or malicious conduct and discourage others from acting the same way. Not every case qualifies, and many states cap them.
Court Orders
When money alone can’t fix the problem, courts can order equitable remedies. An injunction is a court order requiring someone to do something or stop doing something. To get a permanent injunction, you have to show you’ve suffered harm that can’t be adequately fixed with money, the balance of hardship tips in your favor, and the injunction wouldn’t harm the public interest. Courts take injunctions seriously because violating one carries contempt sanctions.
Specific performance is an equitable remedy unique to contract disputes. Instead of damages, the court orders the breaching party to actually perform the contract as promised. Courts reserve this for situations where the subject of the contract is unique enough that no amount of money would be a fair substitute. Real estate is the classic case, since every piece of property is treated as legally unique. Courts have also ordered specific performance for works of art, custom-made goods, and items in short supply.
Deadlines That Can End Your Claim
Every common law claim has a filing deadline. Statutes of limitations set these windows, which vary by jurisdiction and claim type. Personal injury claims often carry shorter deadlines than contract disputes. The clock usually starts on the date of the injury, but when the harm wasn’t immediately apparent, many jurisdictions use a discovery rule that starts the clock when you knew or should have known about the injury. Miss the deadline, and the court will dismiss your case regardless of its merits. This is where people who try to handle legal matters without professional help most often get burned.
Even within the limitations period, unreasonable delay can cost you. The defense of laches lets a defendant argue that your foot-dragging made it unfair to proceed. Laches requires the defendant to show your delay was unreasonable and that it caused real prejudice, such as lost evidence or changed circumstances. Unlike a statute of limitations, which is a hard cutoff, laches is flexible and weighs the reasons for your delay against the harm it caused. A delay explained by lack of information or active concealment is less likely to trigger laches than one caused by simple neglect.
What Enforcing a Common Law Right Looks Like
A common law lawsuit begins with a complaint. In federal court, the rules require three things: a statement of why the court has jurisdiction, a plain statement of facts showing you’re entitled to relief, and a description of the remedy you’re seeking.4United States Courts. Federal Rules of Civil Procedure State courts have similar requirements. The complaint doesn’t have to prove your case; it has to lay out a plausible claim that, if the facts are true, would entitle you to win. You file it with the court clerk along with a filing fee that varies by court and case type, and then you formally deliver it to the opposing party through a process called service.
Once served, the defendant has a limited window to respond. In federal court, that window is 21 days after service to file an answer or a motion to dismiss, extended to 60 days if the defendant waived formal service.5Legal Information Institute. Federal Rules of Civil Procedure Rule 12 – Defenses and Objections State deadlines vary but commonly fall in the 20-to-30-day range. A motion to dismiss argues that even if everything in the complaint is true, it doesn’t add up to a valid legal claim. If the case survives, the defendant files an answer admitting or denying each allegation.
Then both sides enter discovery, the phase where each party gathers evidence from the other. The main tools are interrogatories (written questions answered under oath), depositions (live testimony taken outside of court and recorded), requests for production of documents, and requests for admissions. Subpoenas can compel third parties to produce documents or testify. Discovery is often the most expensive and time-consuming phase of litigation, and it is the stage where many parties decide to settle rather than continue toward trial, particularly when discovery reveals strengths or weaknesses that weren’t apparent from the complaint.