Sihnhold v. Missouri State Employees' Retirement System

# Sihnhold v. Missouri State Employees' Retirement System **What Happened** An employee of Missouri's retirement system sued, arguing that a 1999 rule change should be applied retroactively to lower his retirement age from 65 to 62. He claimed this change should apply to work he had already completed before the rule was passed. **What the Court Decided** The court ruled against the employee. It decided that applying the new retirement age to past work violated Missouri's constitution. The constitution prohibits giving extra compensation or benefits for services that employees already performed under different terms. The court upheld the lower court's decision in favor of the retirement system. **Why This Matters for Workers** This ruling establishes that employers cannot retroactively change benefits based on work already completed. Once you've done your job under certain agreed-upon conditions, those conditions generally can't be altered after the fact—even if new rules seem more favorable. Workers cannot claim benefits under rules that didn't exist when they performed their work, which protects the original agreements between employers and employees.