Benefits Contact Information, Carrier Contact, Provider Benefits Guides, Rates, Eligibility Rules & Other Important Information
Notices

Important Information from Benefit Providers

Open Enrollment

Open Enrollment is your opportunity to make/change your plan elections, add/drop dependents for the upcoming year, and enroll in FSA/HSA. Selections made during Open Enrollment will be effective January 1, 2026. You will be able to make changes in Workday October 14th through November 7th, with a January 1, 2026 effective date. 

Open Enrollment for County Retirees

Open Enrollment is your opportunity to make/change your plan elections, add/drop dependents for the upcoming year, and change your monthly sick leave usage (for some groups). You will be able to make changes October 14th through November 7th, with a January 1, 2026 effective date.

Patient Protection & Affordable Care Act Notice

All County of San Mateo Employees, Attached is a new one-time notice that is being sent to you in accordance with the Patient Protection and Affordable Care Act (ACA) of 2010 (sometimes referred to as “Obamacare”). This notice, designed by the Federal Department of Labor, is intended to inform you about the following:

Rules for Coverage Eligibility

SamCERA

SamCERA is the San Mateo County Employee's Retirement Association.

Employee Benefits Self-Service

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Use Workday to view and update your benefits and opt in to receive your tax documents electronically!

Find Out How