Legally Reviewed By: Robert M. Knowles
Attorney & Partner At Knowles Law Firm
When filing a personal injury claim, proving causation is one of the most critical steps. To hold a liable party responsible for an accident, the plaintiff must establish that the defendant’s actions directly led to the victim’s injuries. However, causation is more complex than simply identifying who caused the accident. Courts use two legal concepts — actual cause and proximate cause — to determine whether a defendant should be held legally responsible for the harm that resulted.
Understanding the difference between actual cause and proximate cause is essential in proving liability in a Nebraska personal injury case. These two standards work together, and a plaintiff who can only establish one but not the other may not be able to recover compensation. A Omaha personal injury attorney with experience presenting causation arguments can make the difference between a successful claim and a dismissed one.
What Is Actual Cause?
Defining Actual Cause (Cause in Fact)
Actual cause, also known as cause in fact or factual cause, refers to the direct reason an injury occurs. It answers the “but for” test: would the plaintiff’s injuries have happened but for the defendant’s negligent actions? If the answer is no — meaning the injury would not have occurred without the defendant’s conduct — then the defendant’s actions qualify as the actual cause.
For example, if a drunk driver runs a red light and crashes into another vehicle, the driver’s impairment and traffic violation are the actual cause of the collision. Without that conduct, the crash would not have occurred.
Proving Actual Cause in a Personal Injury Case
To establish actual cause, plaintiffs must provide strong evidence demonstrating the direct link between the defendant’s negligent action and the resulting injury. This evidence typically includes medical records documenting the injury and its onset, witness statements describing the sequence of events, video surveillance or dashcam footage capturing the incident, police reports and crash reconstructions, and expert testimony connecting the defendant’s conduct to the harm that followed.
Proving actual cause alone, however, is not sufficient to establish legal liability. Courts require plaintiffs to also demonstrate proximate cause — the question of whether the defendant should be legally responsible for the foreseeable consequences of their conduct.
What Is Proximate Cause?
Proximate Cause as Legal Cause
While actual cause identifies the physical chain of events that led to an injury, proximate cause determines legal liability. It asks whether the injury was a foreseeable result of the defendant’s negligent conduct. Courts use this standard to ensure that defendants are not held liable for every conceivable downstream consequence of their actions — only for outcomes that a reasonable person could have anticipated.
A manufacturer who fails to properly test a product that later malfunctions and injures a consumer may face a proximate cause claim. The injury must be a foreseeable outcome of the defendant’s failure to test. If the injury was caused by an entirely unrelated and unforeseeable intervening event, the manufacturer may not be the proximate cause.
The Role of Foreseeability in Determining Proximate Cause
Foreseeability is the central concept in proximate cause analysis. Courts ask whether a reasonable person in the defendant’s position would have anticipated that their conduct could cause the type of harm that occurred. If the injury was a predictable consequence of the defendant’s negligence, proximate cause is typically established. If the harm was too remote, unusual, or dependent on an independent intervening event, a court may find that proximate cause is lacking.
For example: a distracted driver causes a collision. The injured driver is taken to a hospital by ambulance, where a doctor makes a negligent error during treatment. The negligent driver may still be found to be the proximate cause of the original injuries — medical negligence in treating accident injuries is a foreseeable risk. However, whether the negligent doctor becomes a superseding cause of additional harm is a factual and legal question that depends on the specific circumstances.
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The “But For” and “Substantial Factor” Tests
The “But For” Test
The “but for” test is the primary standard for establishing actual cause in most personal injury cases. It asks: would the plaintiff’s injury have occurred but for the defendant’s negligent action? If the injury would not have happened absent the defendant’s conduct, the “but for” standard is satisfied and actual cause is established.
The “but for” test works well in straightforward cases involving a single defendant and a clear causal chain. It becomes more difficult to apply when multiple defendants contributed to the injury, or when the injury might have occurred anyway through an independent cause.
The Substantial Factor Test
When multiple factors contribute to an injury, courts may apply the substantial factor test instead of — or in addition to — the “but for” standard. This approach asks whether the defendant’s actions were a substantial factor in causing the harm, even if other elements were also involved. A defendant whose conduct materially contributed to the plaintiff’s injury may still be held liable even if other causes also played a role.
Nebraska courts apply the substantial factor test in cases involving concurrent causes — situations where two independent forces each would have been sufficient to cause the injury on their own. For example, if two drivers simultaneously ran a red light and both contributed to a collision, either driver’s conduct may be a substantial factor in causing the resulting injuries even though the “but for” test becomes complicated when applied to each independently.
Examples of Actual and Proximate Cause in Action
In car accident cases, actual and proximate cause often work together. If a driver speeds through a red light and hits another vehicle, the speeding and traffic violation are the actual cause. If the injured driver’s injuries are worsened by a defective seatbelt, both the driver and the seatbelt manufacturer may share responsibility under proximate cause analysis — because product failure during an accident is a foreseeable risk.
In slip and fall cases, a business’s failure to address a wet floor is the actual cause of a customer’s fall. Proximate cause is established because the injury — a customer slipping and falling — is precisely the foreseeable outcome that a wet floor warning sign is designed to prevent. The close connection between the negligence and the specific type of harm strongly supports proximate causation.
When causation is disputed, courts look at the totality of the evidence to assess the strength of the causal chain. Weak or indirect connections between the defendant’s conduct and the plaintiff’s injury weaken the proximate cause argument. Strong documentary evidence, consistent medical records, and credible expert testimony all strengthen it.
Why Proving Causation Matters in Nebraska Personal Injury Claims
Establishing both actual and proximate cause is required to recover compensation in Nebraska. Failing to prove either element can result in dismissal of the claim. Nebraska follows a modified comparative negligence system: a plaintiff can recover damages as long as their share of fault is less than 50 percent, but the total recovery is reduced proportionally by their percentage of fault.
Insurance defense attorneys routinely challenge causation by arguing that the plaintiff’s injuries predated the accident, that an intervening cause broke the causal chain, or that the defendant’s conduct was not a substantial factor in causing the claimed harm. Anticipating and rebutting these arguments requires legal experience and the ability to present medical and expert evidence persuasively.
Nebraska’s statute of limitations gives personal injury victims four years from the date of the accident to file a lawsuit under Neb. Rev. Stat. § 25-207. Acting promptly ensures that evidence establishing causation — particularly medical records, accident scene documentation, and expert opinions — is preserved and available to support the claim.
How a Personal Injury Lawyer Can Help Establish Causation
Building a strong causation argument requires collecting and presenting evidence that demonstrates both the factual and legal connection between the defendant’s conduct and the plaintiff’s injuries. An experienced Omaha personal injury attorney can gather and present critical evidence including accident reports, witness statements, medical records, and expert testimony from accident reconstructionists and treating physicians. Attorneys also ensure that the legal principle of foreseeability is properly applied to the facts of the case — a step that is particularly important when the defense argues that an intervening event broke the causal chain.
When multiple parties contributed to the accident, an attorney evaluates the sequence of events, applies the substantial factor test, and pursues all responsible parties. Knowles Law Firm has secured multi-million dollar settlements for Nebraska personal injury victims over 55 years of practice by building comprehensive causation arguments and presenting them effectively to insurance companies and courts.
Frequently Asked Questions About Actual and Proximate Cause
What is the difference between actual cause and proximate cause in personal injury cases?
Actual cause, also called cause in fact, refers to the direct physical connection between the defendant’s actions and the harm that occurred. It is established through the but-for test: would the injury have happened but for the defendant’s conduct? Proximate cause determines legal liability — it asks whether the harm was a foreseeable result of the defendant’s negligence. Both must be proven to hold a defendant legally responsible in a Nebraska personal injury case.
Can there be multiple causes in a personal injury case?
Yes. Courts assess multiple causes using the substantial factor test, which asks whether each defendant’s actions were a material contributor to the plaintiff’s injury. A defendant may still be liable if their conduct significantly contributed to the harm, even if other factors also played a role. Nebraska’s comparative fault system assigns percentages of fault to each responsible party, and defendants pay proportionally to their share.
Why is proving proximate cause important in a personal injury claim?
Proximate cause limits liability to injuries that were foreseeable consequences of the defendant’s negligence. Without establishing proximate cause, even clear evidence of actual cause may not be sufficient to recover compensation. Insurance defense attorneys frequently challenge proximate cause by arguing that an intervening event broke the causal chain or that the injury was too remote from the defendant’s conduct. A strong proximate cause argument is essential to a successful personal injury claim.
How can a personal injury attorney help prove causation in my Nebraska case?
An experienced attorney gathers and presents the medical records, expert testimony, accident scene documentation, and witness statements needed to establish both actual and proximate cause. Attorneys also anticipate and counter defense arguments that challenge the causal chain, ensure the foreseeability standard is properly applied, and build a narrative that connects the defendant’s specific conduct to the specific harm the plaintiff suffered.
How long do I have to file a personal injury claim in Nebraska?
Nebraska law gives personal injury victims four years from the date of the accident to file a lawsuit under Neb. Rev. Stat. 25-207. Acting promptly is important not only to meet this deadline but also to preserve critical causation evidence — medical records, accident scene conditions, and expert opinions are strongest when gathered close to the time of the injury. Contact Knowles Law Firm through the contact form to schedule a free consultation.
About Our Attorney
Robert M. Knowles
Attorney & Partner at Knowles Law Firm
Robert has tried cases in both state and federal courts and was selected as one of the top 100 litigation lawyers in Nebraska for 2014 by the American Society of Legal Advocates. Less than 1.5 percent of lawyers nationally are selected for this recognition. He is rated AV by Martindale-Hubbell which is the highest rating an attorney can obtain. He was also selected by Martindale-Hubbell as a 2019 Top Rated Lawyer.
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