The Consolidated Omnibus Budget Reconciliation Act (COBRA) is a federal law that mandates employers to keep you covered under your current employer-provided health plan for up to 18 months after you leave.
Of course, COBRA doesn’t apply to all employers, so you have to check in your specific case (there generally has to be over 20 employees). In some cases, you might have to pay the entire premium for the insurance, plus some sort of administrative fee (and this can be more expensive than purchasing an individual plan).
Can I Purchase Individual Health Insurance?
Does My Spouse Need Separate Health Insurance When I Retire?
If I Retire, Can I Keep the Health Plan My Employer Offered?