COBRA lets you keep your exact employer-sponsored health insurance after a job loss or other qualifying event — same plan, same doctors, same coverage — instead of losing it immediately. The catch is the price: you go from paying a subsidized employee share to paying close to the full cost the plan actually charges, and for most families that's a far bigger number than the paycheck deduction ever suggested.

What COBRA Actually Is

COBRA (the Consolidated Omnibus Budget Reconciliation Act) is a federal law requiring most group health plans — generally those sponsored by employers with 20 or more employees — to offer continuation of the exact same coverage after certain "qualifying events" that would otherwise end it. It isn't a new insurance policy; it's a legal right to temporarily stay on the identical plan you already had.

Qualifying Events and How Long Coverage Lasts

The standard continuation period is 18 months, triggered by the two most common qualifying events: voluntary or involuntary termination (for reasons other than gross misconduct) or a reduction in work hours that causes loss of eligibility.

Other qualifying events can extend coverage further:

A disability extension can add up to 11 additional months (bringing the total to 29 months) if the Social Security Administration determines a qualified beneficiary was disabled at some point during the first 60 days of COBRA coverage.

A second qualifying event — such as divorce, the covered employee's death, or the covered employee becoming entitled to Medicare — occurring during the original 18-month period can extend a spouse or dependent's coverage to a total of 36 months from the original event.

The Timeline: Four Deadlines That Actually Matter

COBRA runs on a specific sequence of federally defined deadlines:

Employer notifies the plan administrator of the qualifying event, generally within 30 days.

Plan administrator sends the election notice to the qualified beneficiary, generally within 14 days of being notified.

You have at least 60 days to elect coverage — measured from the later of the date coverage was lost or the date you received the election notice.

You have 45 days after electing to make your first premium payment.

One detail that surprises people: election is retroactive. If you elect COBRA and pay within these windows, coverage is treated as continuous from the date your employer coverage ended — meaning a medical expense incurred during the gap between job loss and your COBRA election is still covered, as long as you ultimately elect and pay. You can also change your mind: if you initially waive COBRA, you can still elect it later, as long as you do so within the original 60-day window.

The Price Shock: Why COBRA Costs So Much More Than You Expect

Here's the part that catches almost everyone off guard. While employed, your paycheck deduction reflects only your share of the premium — your employer is quietly covering the rest. COBRA removes that subsidy entirely.

Federal law caps the COBRA premium at 102% of the plan's total cost — the extra 2% covers administrative overhead. That 102% is calculated on the combined employer-plus-employee cost, not just what you were used to paying.

A Real-Numbers Example

According to KFF's 2025 Employer Health Benefits Survey, the average total annual premium for employer-sponsored family coverage was $26,993, of which workers contributed an average of $6,850 — meaning employers covered the remaining $20,143, or roughly 75% of the total cost, invisibly, through payroll.

What you were paying while employed (monthly): $6,850 ÷ 12 ≈ $571

What COBRA actually costs (102% of the full $26,993, monthly): ($26,993 × 1.02) ÷ 12 ≈ $2,294

That's roughly a 4x increase in your monthly health insurance cost — not because your coverage changed at all, but because the employer's 75% share disappeared the moment you lost active employee status. Over a full 18-month COBRA period at that rate, the total cost comes to roughly $41,300 — an amount that can come as a genuine shock to someone who'd only ever seen the $571 line item on their pay stub.

During a disability extension specifically (months 19 through 29), the premium cap can rise even further, to 150% of the total cost, for the disabled qualified beneficiary.

Why This Still Might Be Worth It

Despite the sticker shock, COBRA solves a specific problem other options don't: it preserves your exact plan, network, and provider relationships with zero gap in coverage and no new underwriting or waiting period. For someone mid-treatment, with a specialist they can't easily switch from, or simply wanting to avoid the complexity of shopping for a new plan during an already stressful job transition, that continuity has real value beyond the premium comparison alone.

What to Compare COBRA Against

COBRA is rarely the only option after a qualifying event, and it's worth comparing against the alternatives before defaulting to it:

ACA Marketplace plans. Losing job-based coverage is itself a qualifying life event that opens a special enrollment period for Marketplace coverage, and depending on your income, you may qualify for premium tax credits that meaningfully reduce the cost compared to COBRA's uncapped 102% price.

A spouse's employer plan, if available — losing your own coverage also typically qualifies as a special enrollment event on a spouse's plan, even outside that plan's normal open enrollment window.

Medicaid, depending on your state and current income, particularly if your income has dropped following job loss.

Because COBRA's 60-day election window runs concurrently with these other options' own enrollment windows, it's possible to shop the alternatives first and still elect COBRA retroactively later if nothing else turns out to be a better fit — the retroactive election feature described above is exactly what preserves that flexibility.

Frequently Asked Questions

Does COBRA cover pre-existing conditions?

Yes — because it's a continuation of the exact same plan you already had, there's no new underwriting, waiting period, or pre-existing condition exclusion to satisfy.

What happens if I miss the 60-day election deadline?

You generally lose the right to elect COBRA coverage entirely, with no retroactive option afterward — it's a firm deadline, not a guideline.

Does my employer have to offer COBRA?

Only employers with 20 or more employees are subject to federal COBRA requirements. Many states have their own "mini-COBRA" laws extending similar continuation rights to employees of smaller employers, with rules that vary by state.

Can I switch to a cheaper plan while on COBRA?

Generally no — COBRA continues the specific plan option you were enrolled in at the time of the qualifying event, not a different, potentially cheaper plan your former employer might also offer to active employees, unless your employer changes plan offerings for all similarly situated beneficiaries during an open enrollment period.

Is COBRA the same everywhere, or does the cost vary?

The 102%/150% caps are federal maximums, not fixed national prices — the actual dollar amount depends entirely on what your specific employer's plan costs, which varies significantly by employer, plan type, and region.

Key Takeaways

COBRA lets you keep your exact employer health plan after a qualifying event like job loss, typically for 18 months (longer with a disability extension or second qualifying event), through a defined sequence of notice and election deadlines culminating in a 60-day window to elect and 45 days to pay.

The defining shock is cost: because your employer's share of the premium disappears, you're generally billed up to 102% of the plan's true combined cost — which, using real 2025 national averages, can mean a roughly 4x jump from what a paycheck deduction alone ever suggested you were paying. That cost is exactly why comparing COBRA against Marketplace plans, a spouse's coverage, or Medicaid before committing is worth the extra step, especially since COBRA's retroactive election feature means that comparison doesn't have to happen under immediate time pressure.

Sources

• U.S. Department of Labor — An Employee's Guide to Health Benefits Under COBRA

• Centers for Medicare & Medicaid Services — COBRA Continuation Coverage Questions and Answers

• KFF — 2025 Employer Health Benefits Survey

This article is for general educational purposes only and does not constitute financial, investment, tax, or legal advice.