When someone is injured due to another person’s actions, one of the key legal concepts in determining fault is duty of care. In an injury claim, duty of care refers to the responsibility individuals or businesses have to act in a way that prevents harm to others. If someone fails to uphold this duty, they may be considered negligent and held liable for damages.
Understanding how duty of care works is crucial in personal injury claims, as it directly impacts who is responsible for an accident and what compensation the victim may be entitled to receive. Without proving a breach of duty of care, it can be challenging for an injured party to recover damages, making it an essential component of any successful claim. By recognizing how this concept applies across various cases, individuals can better understand their legal rights when seeking compensation.
Call our Chicago injury law firm at (312) 300-2515 today to talk with a lawyer about your case and what steps to take next.
Duty of care is a legal obligation requiring individuals, businesses, and professionals to act with reasonable care to prevent harm to others. This means taking necessary precautions to avoid accidents, injuries, or dangerous situations. The standard of care expected in different situations varies depending on the relationship between the parties and the level of responsibility involved.
For example:

If a person or business fails to uphold their duty of care, they may be held legally responsible for any injuries that result from their negligence. Proving that this duty existed and was violated is the foundation of most personal injury lawsuits. This concept applies across a wide range of claims, ensuring that those responsible for harm are held accountable.
To successfully file a personal injury claim, the injured party (plaintiff) must prove negligence by showing that:
The first step in an injury claim is proving that the at-fault party owed the injured person a duty of care. This means showing that the defendant had a legal responsibility to act in a way that would prevent harm. Without this element, an injury claim cannot proceed, as courts require proof that the responsible party had an obligation to prevent harm.
For example:
Proving fault is critical for an injury claim because it directly impacts whether the injured person can receive compensation. A skilled attorney can help gather evidence to demonstrate the existence of duty and how the at-fault party failed to meet their legal obligation.
A breach of duty occurs when a person or business fails to meet their legal obligation to act safely and responsibly. Courts determine whether a breach occurred by evaluating what a reasonable person would have done in the same situation.
Examples of breach of duty include:
Proving that someone failed to act responsibly is essential in holding them accountable. The more evidence available to support the claim, such as surveillance footage or witness testimony, the stronger the case becomes.
Even if duty of care was breached, the plaintiff must prove that this directly caused their injury and led to financial damages. This requires showing a clear link between the negligent actions and the harm suffered.

This can include:
A lawyer can help your injury claim by getting evidence to connect the breach of duty to the injury and demonstrate the full impact of the harm caused. Insurance companies often try to dispute causation, making it necessary to have detailed medical records, accident reports, and expert testimony to support the claim.
Depending on the type of injury case, the duty of care may look very different. Here are some of the most common ways that duty of care applies:
All drivers must operate their vehicles responsibly to protect others on the road. This means:
When a driver fails to meet this duty of care, they may be liable for any injuries or damages caused in a crash. Insurance companies often evaluate the driver's actions before the accident to determine if negligence played a role.
Property owners must ensure their premises are free from hazards that could cause injury. Examples of negligence in premises liability cases include:
Victims injured due to unsafe premises may have a valid personal injury claim if they can prove the property owner knew about the danger but failed to address it.
Healthcare professionals owe a duty of care to their patients. When they fail to meet accepted medical standards, serious injuries can occur. Examples of medical malpractice include:
Patients who suffer due to medical negligence must prove that their doctor's actions were below the accepted standard of care, often requiring expert medical testimony.
In Chicago, which follows Illinois’ modified comparative negligence rule, the duty of care in a car accident injury claim is closely tied to how much each party is at fault.
Under Illinois law, if you’re injured in a car accident, you can still recover damages as long as you are not more than 50% at fault. But your compensation will be reduced by your percentage of fault.
For example, if a court finds you 20% responsible for the accident, your damages will be reduced by 20%. If you’re 51% or more at fault, you can’t recover anything.
Everyone on the road has a legal duty to drive safely and responsibly. Comparative negligence doesn’t change that duty—it affects how fault is divided and how much each person is held financially responsible.

In a personal injury claim, proving someone breached their duty of care is key. But if the other driver can show you also breached your duty (like by texting while driving), your share of fault goes up—and your potential compensation goes down.
In a Chicago injury claim, comparative negligence doesn’t erase your right to seek damages, but it can limit what you get—or block it entirely if your fault exceeds 50%. That’s why establishing who acted negligently—and how much each party contributed to the crash—is so important in these cases.
Duty of care is a critical element in personal injury claims, helping to establish who is responsible for an accident. When a person or business fails to uphold their duty, they may be liable for damages, including medical costs, lost wages, and pain and suffering.
If you have been injured due to someone else’s negligence, seeking legal guidance is essential. An experienced personal injury attorney can help you prove duty of care was violated, gather strong evidence, and fight for the compensation you deserve.
If you or a loved one has been injured in Chicago, contact Ktenas Injury Attorneys today for a free consultation to discuss your case.