Missouri Workers' Compensation Laws

Written notice of injury must be given to the employer within 30 days, including time, place, nature of injury, and name/address of injured person. Failure does not bar the claim if the employer was not prejudiced.

For occupational diseases, the limitations period begins when the disease becomes reasonably discoverable and its connection to employment is apparent.

TTD benefits are 66 2/3% of average weekly wage (based on 13 weeks of gross wages before injury). Maximum: $1,280.84/week (July 2025-June 2026, 105% of SAWW). Minimum: $40/week. Duration capped at 400 weeks.

General employers: 5 or more employees must carry coverage. Construction industry: 1 or more employees.

Compensates when a current work injury combines with a pre-existing disability to create enhanced disability. Employer liable only for current injury; Fund covers the synergistic increase. Post-2014 reforms limit Fund claims to PTD only, requiring the pre-existing disability to equal 50+ weeks of body-as-a-whole disability.

Workers' compensation is the exclusive remedy for workplace injuries. Employer is liable irrespective of negligence and released from all other liability. Exceptions: intentional torts and third-party claims.