How Long Do Vehicle Accident Cases Take in Illinois?
- HM&M
- 5 days ago
- 3 min read

Vehicle accident cases can vary significantly in length depending on the severity of the injuries, the complexity of the crash, and whether the case settles or proceeds to trial.
Some claims may resolve within a few months through insurance negotiations, while others can take several years if litigation becomes necessary. Understanding the stages of a vehicle accident case can help injured individuals know what to expect during the legal process.
Phase 1: Case Evaluation and Investigation
Estimated Timeline: 1–3 Months
The first phase involves investigating the accident and gathering evidence to determine fault and damages.
This may include:
Reviewing police reports
Collecting photographs and video footage
Interviewing witnesses
Evaluating medical records and treatment
Assessing vehicle damage
Reviewing insurance information
In more serious accidents, accident reconstruction experts may also be involved.
Phase 2: Filing the Insurance Claim or Lawsuit
Estimated Timeline: 1–3 Months
Once the initial investigation is complete, a claim may be submitted to the insurance company or a lawsuit may be formally filed.
This stage may involve:
Insurance negotiations
Demand letters
Filing a legal complaint
Serving defendants with notice of the lawsuit
Some cases resolve early during insurance negotiations, while others move into formal litigation.
Phase 3: Discovery Phase
Estimated Timeline: 6–18+ Months
Discovery is often the longest phase of a vehicle accident case.
During this stage, both sides exchange information and evidence, including:
Depositions of drivers, witnesses, and experts
Medical evaluations and treatment records
Requests for documents and communications
Expert analysis regarding fault or damages
If liability is disputed or injuries are severe, discovery may become more extensive.
Phase 4: Mediation or Settlement Negotiations
Estimated Timeline: 2–6 Months (or ongoing)
Many vehicle accident cases settle before trial.
Settlement discussions may involve:
Negotiating compensation for medical expenses and lost wages
Evaluating long-term care needs
Participating in mediation sessions
Negotiations can continue throughout the litigation process.
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 depending on court schedules and the complexity of the case.
Factors That Can Lengthen the Timeline
Several factors can affect how long a vehicle accident case takes, including:
The severity of the injuries
Disputes over fault or liability
Multiple vehicles or parties involved
Insurance company disputes
Ongoing medical treatment
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 lengthy—but building a strong case can significantly affect the outcome.
A thorough case can help:
Maximize financial compensation
Recover future medical and income losses
Hold negligent parties 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 Vehicle Accident Attorney in Illinois
Vehicle accident cases can quickly become complicated, especially when serious injuries, disputed liability, or insurance issues are involved.
At Hurley McKenna & Mertz, P.C., we investigate crashes, work with medical and accident reconstruction experts, and guide injured individuals through every phase of the legal process. Our team is committed to pursuing accountability and full compensation for our clients.
If you were injured in a crash, contact our Illinois vehicle accident attorneys today for a confidential consultation and guidance on your legal options.