How Long Do Car Accident Cases Take in Illinois?
- HM&M
- Jul 23
- 3 min read

One of the most common questions after a car collision is, "How long will my case take?" Unfortunately, there is no one-size-fits-all answer. Some car accident cases settle in a matter of months, while others may take several years to resolve.
The timeline depends on factors such as the severity of the injuries, whether liability is disputed, and whether the case settles or proceeds to trial. Understanding the typical stages of a car accident case can help set expectations and provide clarity throughout the process.
Phase 1: Case Evaluation and Investigation
Estimated Timeline: 1–3 Months
The first step is determining how the collision occurred and gathering evidence to support your claim.
This phase may include:
Reviewing police reports
Collecting photographs and video footage
Interviewing witnesses
Obtaining medical records and treatment information
Evaluating vehicle damage
Reviewing insurance policies and coverage
In more serious collisions, accident reconstruction experts may also become involved.
Phase 2: Filing the Insurance Claim or Lawsuit
Estimated Timeline: 1–3 Months
Once the initial investigation is complete, your attorney may begin negotiating with insurance companies or formally file a lawsuit.
This stage may involve:
Preparing demand packages
Negotiating with insurance adjusters
Filing a legal complaint if necessary
Serving defendants with notice of the lawsuit
Some cases settle during this stage, while others move into litigation.
Phase 3: Discovery Phase
Estimated Timeline: 6–18+ Months
Discovery is often the longest part of a car accident case.
During this stage, both sides exchange information and evidence, including:
Depositions of drivers, witnesses, and experts
Medical records and treatment updates
Vehicle inspection reports
Requests for documents and communications
Expert analysis regarding liability or damages
Cases involving disputed fault or severe injuries often require more extensive discovery.
Phase 4: Mediation or Settlement Negotiations
Estimated Timeline: 2–6 Months (or ongoing)
Most car accident cases settle before trial.
Settlement discussions may involve:
Negotiating compensation for medical expenses and lost wages
Evaluating future medical care needs
Participating in mediation sessions
Reviewing settlement offers and counteroffers
Negotiations can continue throughout the litigation process and even during trial preparation.
Phase 5: Trial
Estimated Timeline: Several Days to Weeks (Typically 1–3+ Years After Filing)
If the parties cannot reach a settlement, the case may proceed to trial.
At trial:
Evidence and witness testimony are presented
Medical and accident reconstruction experts may testify
A judge or jury determines liability and damages
Although trials themselves are relatively short, reaching trial can take years due to court schedules and case complexity.
Factors That Can Lengthen the Timeline
Several factors can affect how long a car accident case takes, including:
The severity of the injuries
Ongoing medical treatment
Disputes over fault or liability
Multiple vehicles or parties involved
Insurance company disputes
Court scheduling delays
Cases involving catastrophic injuries or commercial vehicles often take longer due to the complexity of damages and evidence.
Is It Worth Waiting?
For many injured individuals, the legal process can feel slow—but taking the time to build a strong case can significantly impact the outcome.
A thorough case can help:
Maximize compensation
Recover future medical costs and lost earning capacity
Hold negligent drivers accountable
Provide long-term financial stability after serious injuries
While every case is different, patience and preparation are often critical to achieving a fair result.
Work With a Car Accident Attorney in Illinois
Car accident cases can become complicated quickly, especially when serious injuries or disputed liability are involved.
At Hurley McKenna & Mertz, P.C., we investigate collisions, work with medical and accident reconstruction experts, and guide clients through every phase of the legal process. Our team is committed to pursuing accountability and full compensation for injured individuals and families throughout Illinois.
If you were injured in a car collision, contact our Illinois car accident attorneys today for a confidential consultation and guidance on your legal options.


