Personal Injury · Civil Litigation

Negligence Law in Pennsylvania: What Injured People Need to Prove


Most personal injury lawsuits in Pennsylvania are built on one legal concept: negligence. The law does not require someone to act perfectly, but it does require people and businesses to act reasonably under the circumstances. When a person fails to meet that standard and someone is injured as a result, Pennsylvania law allows the injured party to seek compensation for the harm that followed.

Negligence claims arise in many everyday situations. Motor vehicle collisions, unsafe property conditions, dangerous construction sites, and careless professional conduct can all create the same basic legal question: did someone fail to exercise reasonable care, and did that failure cause an injury that should have been prevented?

At Lebovitz & Lebovitz, P.A., our Pittsburgh personal injury practice evaluates negligence claims by examining how the injury occurred, what duty was owed, and whether the evidence supports a viable claim. We represent injured individuals throughout Allegheny County and Western Pennsylvania in cases involving vehicle accidents, dangerous property conditions, and other preventable injuries.

The two-year statute of limitations on negligence claims in Pennsylvania is a hard deadline. Once it passes, the claim is permanently barred regardless of how strong the evidence may be.

Call 412-351-4422 or schedule a consultation to discuss the circumstances of your injury.

What Negligence Means Under Pennsylvania Law

Negligence refers to conduct that falls below the level of care a reasonably prudent person would exercise under similar circumstances. The law does not demand perfection. Instead, it asks whether the conduct in question created an unreasonable risk of harm to others.

When a person or business fails to take reasonable precautions and someone is injured as a result, the law may impose responsibility for the resulting damages. Determining whether negligence occurred depends on the specific facts surrounding the incident, including what the defendant knew, what precautions were available, and whether the risk of harm was foreseeable.

The Four Elements of a Negligence Claim

To succeed in a negligence case, an injured party must prove four elements. First, the defendant must have owed a duty of care to the plaintiff. Drivers owe duties to other motorists and pedestrians. Property owners owe duties to people lawfully on their premises. Businesses owe duties to customers and visitors. The scope of the duty depends on the relationship between the parties and the circumstances of the situation.

Second, the plaintiff must show that the duty was breached. A breach occurs when the defendant fails to act with reasonable care. A driver who runs a red light, a property owner who ignores a known hazard, or a contractor who cuts safety corners has each breached the duty of care owed to others.

Third, the breach must have caused the injury. Pennsylvania law requires both actual cause and proximate cause. The negligent conduct must have been a substantial factor in bringing about the harm, and the type of injury must have been a reasonably foreseeable consequence of the conduct.

Fourth, the plaintiff must demonstrate actual damages. These may include medical expenses, lost income, pain and suffering, diminished earning capacity, and other losses recognized by Pennsylvania law. Without demonstrable harm, there is no negligence claim regardless of how careless the conduct may have been.

Comparative Negligence in Pennsylvania

Under 42 Pa.C.S. §7102, Pennsylvania follows a modified comparative negligence rule. An injured person can still recover damages even if they were partially at fault for the incident. However, recovery is reduced in proportion to the plaintiff’s percentage of responsibility. If a plaintiff is found to be more than fifty percent responsible, recovery is barred entirely.

Determining how fault is allocated is often one of the central disputes in negligence litigation. Insurance carriers regularly argue comparative negligence to reduce payouts. In rear end collision cases, defendants may claim the lead driver stopped suddenly. In sidewalk fall cases, the defense may argue the plaintiff was not watching where they walked. Strong evidence of the defendant’s conduct is essential to counter these arguments.

Negligence Per Se

When the defendant’s conduct violates a specific statute or regulation designed to protect the public, courts may treat the violation itself as evidence of negligence. This doctrine is known as negligence per se. For example, a driver who causes a crash while violating a traffic law may face a presumption of negligence rather than requiring the plaintiff to prove the standard of care independently.

Negligence per se does not eliminate the need to prove causation and damages. It simplifies the duty and breach analysis by substituting the statutory standard for the general reasonable care inquiry.

Vicarious Liability and Respondeat Superior

In many negligence cases, the person who directly caused the injury is not the only party who may be held responsible. Under the doctrine of respondeat superior, an employer may be liable for injuries caused by an employee acting within the scope of employment. A delivery driver who causes an accident while making rounds, or a maintenance worker who creates a hazard on a client’s property, may expose the employer to liability.

Identifying all potentially responsible parties is an important early step in evaluating a negligence claim. The party with the deepest insurance coverage is often the employer or property owner rather than the individual whose conduct caused the injury.

Damages Available in Negligence Cases

When negligence causes injury, Pennsylvania law allows recovery of several types of damages. These may include medical expenses, rehabilitation costs, lost income, diminished earning capacity, and compensation for pain and suffering. In serious cases, damages may also include long-term care needs or permanent impairment.

The severity of the injury often determines whether the case justifies the cost and effort of litigation. Cases involving surgery, extended rehabilitation, or permanent limitations are the ones most likely to produce meaningful recoveries. The limited tort vs full tort election on the injured person’s auto insurance policy may also affect what categories of damages are available in vehicle accident cases.

The Pennsylvania Statute of Limitations

Most negligence claims in Pennsylvania must be filed within two years of the date of the injury. Failing to file within that period usually results in the claim being permanently barred. Claims against government entities may involve additional notice requirements with shorter deadlines, including a six-month written notice requirement under the Political Subdivision Tort Claims Act.

Because investigation, medical documentation, and insurance analysis all take time, injured parties should address potential claims promptly rather than assuming two years provides ample time.

Frequently Asked Questions

What must be proven in a negligence case in Pennsylvania?

A plaintiff must prove that the defendant owed a duty of care, breached that duty, caused the injury, and that the plaintiff suffered actual damages as a result.

Is Pennsylvania a comparative negligence state?

Yes. Under 42 Pa.C.S. §7102, Pennsylvania follows a modified comparative negligence rule. A plaintiff may recover damages as long as their share of fault does not exceed fifty percent. Recovery is reduced by the plaintiff’s percentage of responsibility.

How long do you have to file a negligence lawsuit in Pennsylvania?

Most negligence lawsuits must be filed within two years of the date of the injury. Claims against government entities may require written notice within six months.

What damages are available in negligence cases?

Damages may include medical expenses, lost income, rehabilitation costs, pain and suffering, diminished earning capacity, and long-term care needs resulting from the injury.

Can you recover damages if you were partly at fault?

Yes. Pennsylvania allows recovery if the plaintiff’s share of responsibility is fifty percent or less. The recovery amount is reduced by the percentage of fault assigned to the plaintiff.

What is negligence per se?

When a defendant’s conduct violates a specific statute designed to protect the public, courts may treat the violation itself as evidence of negligence. The plaintiff must still prove causation and damages.

Can an employer be liable for an employee’s negligence?

Under the doctrine of respondeat superior, an employer may be liable for injuries caused by an employee acting within the scope of employment.


This page was written by Stephen H. Lebovitz, attorney at Lebovitz & Lebovitz, P.A., a Pittsburgh law firm representing clients in personal injury, negligence, and civil litigation throughout Allegheny County and Western Pennsylvania.

This page relates to our work in personal injury and negligence and premises liability. For specific injury types, see our articles on sidewalk fall liability, rear end collision fault, limited tort vs full tort, and uninsured driver accidents.

Personal Injury · Pittsburgh

If you have been injured through someone else’s negligence, the evidence and the timeline matter from the start.

Lebovitz & Lebovitz represents injured individuals throughout Pittsburgh and Western Pennsylvania in negligence, premises liability, and motor vehicle accident claims.

Negligence law does not require proof of intent or malice. It requires proof that someone failed to act with reasonable care and that the failure caused a preventable injury.