Worker's compensation laws are complex and include various time limits that must be strictly met to preserve your claim following a work injury. Generally, you must notify your employer of a work injury within 20 days. If you fail to give notice of your injury after 20 days you could lose some of your benefits. Importantly, if you wait longer than 120 days to give your employer notice of a work injury, you could forfeit all benefits. Once your employer has been notified of the injury, you generally will have up to three years to file a claim with the Department of Labor. Given these strict time periods, it is best to contact an attorney immediately following any work injury or accident.