Illinois Workers' Comp · Injury Claim
Head & Brain Injury (TBI) at work in Illinois?Here's what the law actually says you're owed.
Reviewed by: David K. Warren, Esq.
Occupational Injury Attorney · IL Bar #6320145 · 11 yrs exp.
Last reviewed: January 2026 · Verified against state DWC regulations
Find out what your head & brain injury (tbi) claim is worth. Illinois workers typically receive $14,000–$100,000. Free, no-obligation assessment.
$14,000
Avg low
$100,000
Avg high
3 years
Deadline
Estimate your Illinois-specific benefits:
Which state were you injured in?
Workers' comp laws vary significantly by state.
Max weekly benefit: $1,897/week
Filing deadline: 3 years from injury
Compensation system: PERCENTAGE-OF-PERSON
67%
of avg weekly wage (TTD)
$1,897
max weekly benefit
20%
typical attorney fee
3
filing deadline
Illinois Workers' Comp Law — Key Facts
Governing statute: Illinois Workers' Compensation Act (820 ILCS 305)
TTD rate: 67% of average weekly wage
Maximum weekly benefit: $1,897
Statute of limitations: 3 years from injury
Filing deadline: Report to employer within 45 days
Key features of Illinois's system:
- ✓ Percentage-of-person disability system (no scheduled loss)
- ✓ No cap on PPD weeks for non-scheduled injuries
- ✓ Petitioner can choose treating physician
Illinois Workers' Compensation Commission (IWCC) administers a system notable for its high impairment benefit multipliers — permanent disability is calculated as a percentage-of-person disability, with payments at 60% of average weekly wage for the applicable number of weeks. Illinois has no maximum number of weeks for non-scheduled injuries, which can result in very high PPD awards for significant impairments. Attorney contingency fees are capped at 20% of disputed amounts.
What to Expect with Head & Brain Injury (TBI) in Illinois
25%
Average impairment rating
$85,000
Average medical costs
Traumatic brain injuries (TBI) represent some of the most complex and high-value workers' compensation claims. Even mild TBI (concussion) can produce persistent post-concussion syndrome — headaches, cognitive impairment, light sensitivity, and emotional dysregulation — that prevents return to skilled work for extended periods. Moderate and severe TBI can result in permanent cognitive deficits, seizure disorders, and the need for long-term care. TBI claims require multidisciplinary documentation from neurologists, neuropsychologists, and occupational therapists. Average settlement values for significant TBI are well above $100,000 and can exceed $1 million in severe cases with permanent total disability. Falls from elevation (construction) and vehicle accidents are the leading causes of work-related TBI.
Common treatments
- ✓ Acute hospitalization and neurosurgical evaluation
- ✓ CT and MRI neuroimaging
- ✓ Neuropsychological testing (baseline and follow-up)
- ✓ Cognitive rehabilitation therapy
- ✓ Occupational therapy for daily living skills
- ✓ Psychiatric treatment for mood disorders and PTSD
Documentation needed
- ✓ Emergency room and hospital records
- ✓ CT scan and brain MRI reports
- ✓ Neuropsychologist evaluation reports
- ✓ Neurologist treatment notes
- ✓ Witness statements and incident report
- ✓ Pre-injury employment and academic records (for cognitive comparison)
How Much Is a Head & Brain Injury (TBI) Workers' Comp Settlement in Illinois?
In Illinois, head & brain injury (tbi) workers' comp settlements typically range from $14,000 to $100,000. The average settlement is approximately $57,000, though severe cases involving surgery or permanent disability can exceed $100,000. Illinois pays TTD at 67% of your average weekly wage, capped at $1,897/week under Illinois Workers Compensation Act 820 ILCS 305. Filing deadline: 3 years from injury from date of injury.
Illinois Head & Brain Injury (TBI) Workers' Comp Settlement Ranges by Severity
| Severity Level | Typical Settlement Range |
|---|---|
| Minor (no surgery, returned to work < 2 weeks) | $14,000 – $39,800 |
| Moderate (PT required, partial restrictions) | $39,800 – $65,600 |
| Severe (surgery or 3+ months off work) | $65,600 – $100,000 |
| Catastrophic (permanent disability) | $100,000+ — attorney required |
What Determines a Head & Brain Injury (TBI) Workers' Comp Settlement in Illinois?
- ✓Impairment rating assigned by your doctor
- ✓Average weekly wage before injury
- ✓Illinois’s TTD rate (67%)
- ✓Whether claim was accepted or denied
- ✓Treatment status (pre-MMI vs. post-MMI)
- ✓Whether you have legal representation
How to File a Workers' Comp Claim in Illinois After Head & Brain Injury (TBI)
- 1Report your injury to your employer within 45 days
- 2Seek medical treatment from an authorized provider
- 3File DWC claim form within 3 years from injury of the injury date
- 4Document all symptoms, treatments, and work limitations
- 5Do not sign any settlement without attorney review
What if my head & brain injury (tbi) claim was denied in Illinois?
Denied claims are common — and most are overturned with the right documentation. In Illinois, you have the right to appeal to the IL Workers Compensation Commission within 3 years from injury of the original injury date under Illinois Workers Compensation Act 820 ILCS 305. Common reasons for denial include late reporting, missing medical documentation, or employer disputes.
- →Request a copy of the denial letter and reason
- →File an appeal with the IL Workers Compensation Commission
- →Gather all medical records and doctor notes
- →Contact a workers’ comp attorney — most take cases on contingency
Workers' comp coverage by employment type in Illinois
Frequently asked questions
How much is a head & brain injury (tbi) workers' comp settlement in Illinois?
In Illinois, head & brain injury (tbi) workers' comp settlements typically range from $14,000 to $100,000, depending on impairment rating and treatment status. Illinois pays TTD at 67% of your average weekly wage, capped at $1,897/week under Illinois Workers Compensation Act 820 ILCS 305.
What is the average workers' comp settlement for head & brain injury (tbi) in Illinois?
Illinois workers with head & brain injury (tbi) typically settle between $14,000 and $100,000, depending on impairment rating, treatment costs, and lost wages. Cases involving surgery, permanent disability, or denied claims that are later appealed tend to settle higher.
How long do I have to file a workers' comp claim in Illinois?
In Illinois, you have 3 years from injury from the date of injury to file a workers' compensation claim under Illinois Workers Compensation Act 820 ILCS 305. You must also report your injury to your employer within 45 days. Missing these deadlines can permanently bar your claim.
Does my employment type affect my workers' comp claim in Illinois?
Yes. In Illinois, full-time employees are fully covered. Part-time employees may receive prorated benefits. Independent contractors and gig workers may qualify if misclassified — coverage depends on the degree of employer control over work performance under Illinois Workers Compensation Act 820 ILCS 305.
What can I do if my workers' comp claim was denied in Illinois?
If your claim is denied in Illinois, you have the right to appeal to the IL Workers Compensation Commission. Most denials are overturned with proper documentation. You have 3 years from injury from the original injury date to pursue an appeal. An attorney can file on your behalf at no upfront cost — most work on contingency.
Do I need a lawyer for workers' comp in Illinois?
You are not required to have an attorney, but representation significantly increases average settlement amounts. Studies show workers with attorneys receive 2× higher settlements on average. Most workers' comp attorneys work on contingency — no fee unless you win. Typical fees in Illinois are 20% of settlement.
Other Education injuries in Illinois:
Head & Brain Injury (TBI) workers' comp in other states:
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This calculator provides estimates for informational purposes only and does not constitute legal advice. Results are based on state law formulas and statistical averages. Actual compensation depends on the specific facts of your case. Always consult a licensed workers' compensation attorney.