Missouri Paid Sick Leave Law (Proposition A) Effective May 2025

St. Louis Gateway Arch and skyline at sunset representing 2025 employment law updates impacting staffing firms, payroll compliance, and workforce regulations.

Missouri’s new paid sick leave law, approved by voters under Proposition A, will require many employers to provide earned paid sick time beginning May 1, 2025. The law establishes minimum accrual standards, usage limits, and employee notification requirements that businesses must follow. Employers operating in Missouri should review their leave policies and payroll procedures to ensure they are prepared to comply with the new statewide sick leave requirements.