Legal Glossary
Negligence: Meaning, Elements and Examples
Negligence is a failure to use legally required care that causes harm. A successful claim usually requires proof of duty, breach, causation, and damages—not merely proof that an accident occurred.
Written by The Law Basics Editorial Team
Reviewed under our Editorial Policy · Last updated: June 1, 2026 ·
10 min read
Quick definition
Negligence is a failure to use the level of care required by law under the circumstances. A negligence claim commonly requires duty, breach, causation, and damages, but exact rules and defenses vary by jurisdiction.
Negligence is a central concept in civil injury law. It is not simply carelessness in the everyday sense. A negligence claim normally requires proof of specific legal elements, and the details can change by state, relationship, activity, and type of harm.
An accident by itself does not automatically prove negligence. The claimant generally must connect an applicable duty, an unreasonable act or omission, legally sufficient causation, and actual damages.
What Does Negligence Mean?
Negligence generally means failing to use the level of care that a reasonably careful person would use under similar circumstances. It is a type of tort liability and can arise from an action or a failure to act when a legal duty exists.
Plain-English meaning: Negligence is a legally unreasonable failure to take proper care that causes compensable harm.
The Four Common Elements
| Element | Question | What usually must be shown |
|---|---|---|
| Duty | Did the defendant owe a legal duty of care? | A relationship or situation created a duty recognized by law. |
| Breach | Was the required standard violated? | The conduct fell below reasonable care or another applicable standard. |
| Causation | Did the breach legally cause the harm? | Both factual cause and sufficiently close legal cause may be required. |
| Damages | Was there a recognized loss? | Injury, property loss, expense, lost income, or another recoverable harm. |
Duty and the Standard of Care
The standard often asks what a reasonably prudent person would have done under similar circumstances. But specialized rules may apply to professionals, property owners, product sellers, employers, drivers, caregivers, and people with statutory duties.
Children, emergencies, industry customs, professional practice, and relationships can affect the analysis. A duty may be limited by foreseeability, public policy, status, location, or statute.
Actual Cause and Proximate Cause
Actual cause
The harm would not have happened without the defendant’s breach, using the applicable causation test.
Proximate or legal cause
The connection is close enough and the kind of harm sufficiently foreseeable for liability.
Intervening events
Later conduct or events may affect whether the original breach remains a legal cause.
Multiple causes
More than one person or condition can contribute to the same injury.
What Is Negligence Per Se?
Some jurisdictions use negligence-per-se principles when a defendant violates a safety statute or regulation designed to protect a class of people from a type of harm. The effect of the violation varies: it may establish breach, create a presumption, or merely serve as evidence.
State law controls. A rule violation does not always decide the entire case; causation, damages, protected class, protected harm, excuses, and defenses may remain disputed.
Comparative and Contributory Fault
A plaintiff’s own conduct can reduce or sometimes bar recovery. Most jurisdictions use a form of comparative fault, allocating percentages of responsibility. A smaller number use strict contributory-negligence rules or special variations.
| Concept | General effect | Important caution |
|---|---|---|
| Pure comparative fault | Damages may be reduced by the plaintiff’s percentage of fault | Exact rules vary |
| Modified comparative fault | Recovery may be barred at or above a stated fault threshold | Threshold differs by jurisdiction |
| Contributory negligence | Any qualifying plaintiff negligence may bar recovery | Exceptions and doctrines may apply |
Related Forms of Negligence
Evidence in a Negligence Case
Relevant evidence can include photographs, video, incident reports, medical records, expert opinions, maintenance logs, policies, inspection records, witness accounts, contracts, messages, vehicle data, and proof of financial loss. Evidence should be preserved promptly and lawfully.
Experts may be required when the standard of care or causation is beyond ordinary knowledge, particularly in professional or technical cases.
Deadlines and Legal Help
Negligence claims are subject to statutes of limitations and may also involve shorter notice requirements, especially for government defendants or particular professional claims. See statute of limitations.
Key takeaway: Negligence is not proved by showing only that something bad happened. A claimant generally must establish duty, breach, causation, and legally recognized damages, subject to jurisdiction-specific defenses and deadlines.
Sources Used for This Definition
This glossary page uses official court, government, bar-association, copyright, and legal-education sources. Legal meanings and procedures can vary by jurisdiction, claim, court, document, and individual facts.
Learn how we research and review legal topics in our editorial process.
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Legal Disclaimer
This glossary page provides general legal information for educational purposes only. It is not legal advice and does not create an attorney–client relationship.
Definitions, elements, deadlines, privileges, defenses, procedures, eligibility rules, and remedies vary by jurisdiction and facts. Speak with a licensed attorney or qualified legal-aid organization about a specific legal problem.