General tort liability is the body of civil law that requires a person or business whose conduct injures someone else to pay for the harm. It operates privately: the injured party sues, and the remedy is money rather than prosecution or jail. Liability can arise from carelessness, from a deliberate act, or from certain dangerous activities the law treats as the responsible party’s problem regardless of precautions. The burden on the plaintiff is a preponderance of the evidence, meaning their version has to be more likely true than not, a lower bar than the beyond-a-reasonable-doubt standard used in criminal cases.1eCFR. 2 CFR 180.990 – Preponderance of the Evidence
The Four Elements Every Claim Needs
A tort claim stands or falls on four elements. Fail to prove any one and the case is over.
Duty. The defendant owed the plaintiff some obligation to act carefully. Drivers owe other motorists safe driving. Property owners owe visitors reasonably safe premises. The duty doesn’t need to be written down. It flows from the relationship between the parties and from how foreseeable the harm was.
Breach. The defendant failed to meet that duty. A store that leaves a puddle in the aisle for hours has breached its duty to customers. A driver texting through a red light has breached the duty to drive safely. The question is whether the conduct fell below what the situation called for.
Causation. This part has two layers. Cause-in-fact asks whether the harm would have happened without the defendant’s conduct. Proximate cause asks whether the harm was a foreseeable consequence of that conduct. A driver who rear-ends another car is a proximate cause of the whiplash. That same driver isn’t the proximate cause of a stranger’s heart attack on hearing about the crash later. One wrinkle matters here: the eggshell skull rule. A defendant takes the victim as they find them, so if the plaintiff’s existing condition made the injury far worse than it would have been for someone healthy, the defendant still pays for the full extent of the harm.
Actual damages. There must be a real, measurable loss. A near-miss that produces no injury and no property damage isn’t actionable, however reckless the defendant was.
The Three Ways Liability Attaches
Tort claims divide into three families. Which one applies controls what the plaintiff has to prove.
Negligence
Negligence is the most common theory by a wide margin. The measuring stick is the reasonable person: how would a careful, ordinary person have behaved in the same situation? The question isn’t whether the defendant meant harm. It’s whether their conduct matched what a reasonably prudent person would have done.
Two variations change the proof. Negligence per se lets the plaintiff skip the reasonable-person debate when the defendant violated a safety statute, as long as the statute was designed to prevent the kind of harm that occurred and the plaintiff is the kind of person it was meant to protect. A driver who runs a red light and hits a pedestrian fits both conditions, so the only remaining question is causation.
Professional malpractice raises the bar. Doctors, lawyers, engineers, and other licensed professionals are judged not against the ordinary person but against what a reasonably competent professional in the same specialty would do under comparable circumstances. Expert testimony is almost always required, because jurors lack the specialized knowledge to evaluate whether a surgeon’s technique or a lawyer’s strategy fell below professional norms.
Intentional Torts
Intentional torts arise when someone deliberately performs an act that causes harm. The “deliberately” refers to the act, not the damage. Someone who shoves another person during an argument commits an intentional tort even if they didn’t intend to break the other person’s wrist.
Battery is harmful or offensive physical contact without consent. Assault is its psychological counterpart and requires no contact at all: a swung fist that misses, placing the target in reasonable fear of being hit, is enough. False imprisonment covers confinement against the person’s will. Trespass to land covers unauthorized entry onto someone else’s property and doesn’t require any physical damage. Because the conduct is deliberate, courts are more willing to layer punitive damages on top of compensatory ones when the behavior was especially egregious.
Strict Liability
Some activities are so inherently dangerous that liability attaches regardless of how careful the defendant was. If the activity caused harm, the defendant pays. Commercial blasting, storing large quantities of explosives, and handling toxic chemicals are classic examples. A demolition company that follows every safety protocol is still strictly liable if flying debris injures a neighbor.
Product liability works the same way for manufacturers and sellers. There are three recognized categories of defect: design defects, which exist in the product’s blueprint before the first unit is built; manufacturing defects, which affect only some units of an otherwise safe design; and marketing defects, which involve inadequate warnings or misleading instructions.2Legal Information Institute. Products Liability A consumer injured by a defective product doesn’t have to prove the manufacturer was careless.
Animals follow a split rule. Owners of wild animals are strictly liable for injuries no matter how well-trained the animal appears or what precautions the owner took. For dogs, over 35 states apply strict liability for bites, so the owner pays whether or not they knew the dog was aggressive. The remaining states still require the plaintiff to show the owner knew or should have known about the animal’s dangerous tendencies.
When Someone Else Pays: Vicarious Liability
Plaintiffs often sue parties who didn’t cause the harm directly. Vicarious liability makes this possible. The most common form is respondeat superior, under which employers are liable for harm caused by employees acting within the scope of their job duties. A delivery driver who runs a red light during a route delivery puts both themselves and the employer on the hook.
The scope-of-employment question turns on whether the employee was on a detour or a frolic. A minor, temporary departure like stopping for coffee on the way to a delivery is a detour, and the employer remains liable. A substantial departure for purely personal reasons, like abandoning the route to visit a friend two hours away, is a frolic, and the employer is off the hook.
Independent contractors are generally treated differently. A business that hires a contractor usually isn’t vicariously liable for the contractor’s negligence, because it doesn’t control how the work gets done. Exceptions matter, though. If the work involves inherently dangerous activities like demolition or hazardous waste removal, the hiring party can’t dodge liability by outsourcing. Certain safety duties are nondelegable, meaning the hiring party stays responsible for compliance. And if the hiring party was negligent in choosing or supervising the contractor, that’s its own separate basis for liability.
Defenses That Shrink or Kill a Claim
Even when every element is proved, the defendant can reduce or eliminate liability by raising a defense. Most of these turn on the plaintiff’s own conduct.
Comparative and Contributory Negligence
Most states apply comparative negligence, which reduces recovery in proportion to the plaintiff’s share of fault. If a jury finds $100,000 in damages and assigns the plaintiff 30% of the fault, the award drops to $70,000. The versions differ. About a dozen states follow pure comparative negligence and allow recovery even when the plaintiff was 99% at fault, with the award shrinking accordingly. Roughly 23 states use a 51% bar, cutting off recovery entirely once the plaintiff hits 51% or more. Another ten set the cutoff at 50%.3Legal Information Institute. Comparative Negligence
A handful of states and the District of Columbia still use contributory negligence, the harshest rule. Under it, a plaintiff who bears any fault at all, even 1%, recovers nothing.
Assumption of Risk
If the plaintiff voluntarily encountered a known danger, the defendant can raise assumption of risk. Express assumption comes through a written agreement: the waiver signed before skydiving or joining a gym. Implied assumption comes from conduct, like an experienced skier choosing a black-diamond run.
The defense has real limits. It doesn’t apply when the plaintiff didn’t actually understand the danger, when the defendant’s negligence went beyond the risks the plaintiff accepted, or when the plaintiff’s “choice” was coerced. A worker who uses a machine after the employer removed the safety guard and threatened to fire anyone who complained hasn’t voluntarily assumed the risk.
Multiple Defendants and Shared Fault
Injuries often come from the combined actions of more than one party. A highway pile-up might involve three negligent drivers. A defective product might pass through a manufacturer, distributor, and retailer before reaching the consumer. Joint and several liability lets the plaintiff collect the full judgment from any one defendant, regardless of that defendant’s percentage of fault.4Legal Information Institute. Joint and Several Liability The defendant who pays more than their share can seek contribution from the others. Many states have modified this traditional rule, limiting joint and several liability to defendants above a certain fault threshold or restricting it to economic damages. The rules vary widely.
What You Can Recover
Tort damages fall into three categories, and the rules are different for each.
Economic Damages
These cover documented financial losses: medical expenses (hospital bills, surgery, physical therapy, prescriptions, future care), lost wages, lost earning capacity if the injury affects long-term work, and property repair or replacement costs. The figures are objective, and no state caps economic damages.
Non-Economic Damages
These compensate harm that doesn’t come with a receipt: physical pain, emotional distress, anxiety, depression, loss of enjoyment of life, disfigurement. There’s no formula. Juries weigh the severity and duration of pain, the impact on daily life, and whether the condition is permanent. Some states cap non-economic damages in medical malpractice cases, with limits typically ranging from $250,000 to over $750,000. A smaller number of states cap them in all tort cases.
Punitive Damages
Punitive damages punish especially bad behavior and deter similar conduct by others. They’re not available in every case. Most states require proof that the defendant acted with malice, fraud, or conscious disregard for the safety of others. The U.S. Supreme Court has placed constitutional limits on them. In BMW of North America v. Gore, the Court set three guideposts for evaluating excessiveness: how reprehensible the conduct was, the ratio between the punitive award and the actual harm, and how the award compares to civil or criminal penalties for similar misconduct.5Legal Information Institute. BMW of North America Inc v Gore, 517 US 559 (1996) In State Farm v. Campbell, the Court added that punitive damages should generally stay within a single-digit ratio to compensatory damages.6Justia US Supreme Court. State Farm Mut Automobile Ins Co v Campbell, 538 US 408 (2003)
Deadlines and the Government Exception
Every tort claim has a deadline. Statutes of limitations for personal injury range from one year in a few states to six years in others, with two to three years being most common. Miss it and the court will almost certainly dismiss the case, however strong the evidence. The clock usually starts on the date of the injury, though some states use a discovery rule that delays the start until the plaintiff knew or should have known about the harm.
Claims against the government follow a tougher track. The federal government is generally immune from tort suits unless it has waived immunity, which it has done in limited circumstances through the Federal Tort Claims Act. Before suing, you must submit an administrative claim to the responsible agency. The agency has six months to investigate and decide whether to settle. Only after denial or that six-month window passes can you file suit, and you can’t sue for more than the amount claimed in the administrative filing.7Office of the Law Revision Counsel. 28 USC 2675 – Disposition by Federal Agency as Prerequisite The discretionary function exception then blocks liability for government actions that involved a policy judgment or exercise of discretion, even one that turned out badly.8Congress.gov. The Federal Tort Claims Act (FTCA) – A Legal Overview State and local governments have their own immunity rules, and most require a formal notice of claim within a compressed window, often a few months to one year after the injury. Missing that notice deadline is one of the most common and costliest procedural mistakes in tort litigation.
A Note on Volunteers
Federal law shields volunteers at nonprofits and government entities from personal liability for negligent acts within the scope of their responsibilities. The protection doesn’t reach willful misconduct, gross negligence, reckless behavior, harm caused while operating a vehicle, or acts involving a violent crime, sexual offense, hate crime, or civil rights violation.9Office of the Law Revision Counsel. 42 USC 14503 – Limitation on Liability for Volunteers An authorized volunteer who makes an honest mistake at a charity event generally won’t face personal financial exposure for it.