Sick leave law in the US is a patchwork. No federal statute requires paid sick leave (the one pandemic-era exception expired), but as of 2026 more than half the US population lives in a state, county, or city with its own paid sick leave requirement. The rules vary on accrual, carryover, family care, reasons for use, and documentation, and employers with workforces in multiple jurisdictions can end up tracking five or six different sick-leave accruals concurrently. Getting this wrong creates two kinds of exposure: wage-and-hour claims from employees who were denied leave they were entitled to, and class actions from plaintiffs' firms that audit sick-leave records for systemic violations.
How Sick Leave Typically Works Most state and city sick-leave laws follow a similar structure. Employees accrue sick time based on hours worked, typically at a rate of one hour of leave per 30 or 40 hours worked. Accrual begins on day one of employment, though use may have a 90-day waiting period. Annual caps limit accrual to between 40 and 80 hours. Unused leave typically carries over to the following year, subject to a cap. Leave is paid at the employee's regular rate.
Qualifying reasons for use generally include the employee's own illness, routine medical care, family member illness or care, and safe leave for domestic violence situations. Some laws cover funeral and bereavement leave; others don't.
Which States and Cities Require Paid Sick Leave? As of 2026, the states with paid sick leave laws include California, Colorado, Connecticut, Illinois, Maine, Maryland, Massachusetts, Michigan, Minnesota, Nevada, New Jersey, New Mexico, New York, Oregon, Rhode Island, Vermont, Washington, and Arizona. Washington DC also has a law. Many cities (including NYC, Seattle, Philadelphia, and several California cities) have their own sick-leave laws that are stricter than or supplement the state law. Multi-state employers should maintain a current map of requirements.
Administering Sick Leave Across Jurisdictions Employers with workers in multiple jurisdictions have two common approaches. The first is to adopt the strictest applicable standard company-wide, simplifying administration but increasing total leave cost. The second is to administer jurisdiction-specific accruals, which minimizes cost but requires payroll systems and HR staff that can track multiple concurrent sick-leave buckets per employee.
Large multi-state employers often use a combined PTO policy that subsumes sick leave into a single PTO bank, assuming the total bank meets the strictest jurisdictional requirement. That approach works as long as the PTO policy lets employees use PTO for sick-leave-qualifying reasons and doesn't impose qualifying conditions stricter than the underlying law.
Can Employers Require Documentation for Sick Leave? Most state and city laws permit documentation (like a doctor's note) only for absences of three or more consecutive days. Shorter absences generally can't require medical certification. Employers who require notes for single-day absences often run afoul of the law, especially in California and New York. When documentation is allowed, employees typically have a reasonable time to provide it, often 7 to 15 days.
Sick Leave and Other Types of Leave Sick leave overlaps with FMLA, ADA accommodation, and state-level family and medical leave programs. A qualifying absence may draw from multiple leave types simultaneously. For example, an employee on protected FMLA leave may also be using accrued sick time to cover the otherwise unpaid FMLA period, with STD benefits paying a portion of the wage replacement. HR teams need to communicate clearly which leave categories are running at any time.
State paid family and medical leave programs (California's PFL, New York's PFL, Washington's PFML) are separate from sick-leave laws and cover longer absences for serious conditions or family bonding. Sick leave usually covers shorter absences.
Staying Compliant With Sick Leave Laws in 2026 Sick leave compliance requires current knowledge of every applicable law, payroll systems that track accrual and usage accurately, and training for managers on what they can and can't require. The Department of Labor sick leave resource summarizes federal framework and state programs, and most state labor departments publish compliance guides on their sites. For a related protected leave, see FMLA . For how sick leave fits into broader paid time off, see sick leave pay . Audit your sick leave accrual records annually; the plaintiffs' bar audits them too, and catches errors employers missed.
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