How Does COBRA Health Insurance Continuation Work?
Losing a job usually means losing employer health coverage on the same day, and COBRA exists to keep that coverage from disappearing entirely, at least for a while and at a real cost.
The short answer
COBRA continuation lets someone who loses eligibility for employer-sponsored health insurance, often due to a job change or reduction in hours, keep the exact same plan for a limited period afterward. The catch is cost: the employer typically stops covering its share of the premium, so the person continuing coverage usually pays the full cost themselves, plus sometimes a small administrative fee. The specific eligibility rules and time limits are set by law and can vary by situation, so they’re worth confirming directly rather than assuming a fixed number applies.
Why the price jumps so much
While employed, most workers only see a fraction of what their health coverage actually costs, since an employer typically covers a significant share of the premium as a benefit. COBRA removes that subsidy: the continuing member generally pays the full premium the employer had been covering, on top of the portion they were already paying, which is why COBRA bills often come as a shock to someone comparing them to a paycheck deduction from a few months earlier. Understanding how insurance premiums get split between an employer and an employee in the first place makes that jump easier to anticipate.
What stays the same
- The plan itself. COBRA continues the exact same coverage, same network, same deductible structure, rather than switching to a new policy.
- The same health insurance terms. Deductibles already met earlier in the year generally carry over rather than resetting, since it’s technically the same plan year continuing.
- Dependents. Coverage can typically continue for a spouse or dependents who were covered under the original plan, not just the employee.
What triggers eligibility
COBRA is generally triggered by specific events: losing a job (other than for gross misconduct), a reduction in work hours that drops someone below the coverage threshold, divorce, a dependent aging out of eligibility, or the death of the covered employee. Each triggering event comes with its own notification requirements and enrollment window, and missing that window can mean losing the option to continue coverage at all.
How long it typically lasts
Coverage generally continues for a limited period set by law, often measured in months rather than years, with the exact duration depending on the qualifying event. Because the details depend on individual circumstances and the underlying rules can change, checking the specific timeline that applies to a given situation is more reliable than assuming a fixed number.
Weighing COBRA against the alternatives
COBRA is rarely the cheapest option available, since it lacks any employer subsidy, but it does preserve continuity, same doctors, same deductible progress, without a gap in coverage. Alternatives worth comparing against it include a marketplace plan, which may come with a subsidy COBRA doesn’t offer, or short-term health insurance, which tends to be cheaper but typically covers less and may exclude pre-existing conditions. The right comparison depends on health needs, expected length of the gap, and whether continuity with existing providers matters enough to justify a higher premium.
The timing overlap with other job-change decisions
A job change tends to trigger several benefit decisions at once, not just health coverage. Anyone leaving a job with COBRA eligibility is often also sorting out what happens to a 401(k) when changing jobs, and handling both around the same time is common, if not always convenient.
The bottom line
COBRA offers a way to avoid a coverage gap by keeping an existing plan exactly as it was, but that continuity comes at full price. Comparing the COBRA premium against a marketplace plan or another option, rather than assuming it’s the default choice, is worth doing before the enrollment window closes.