What Is COBRA Insurance?

Losing a job is stressful enough without also losing health insurance. COBRA gives you a way to keep your current coverage -- but at a price most people don't anticipate. Understanding your options quickly is important: the enrollment window is strict and missing it can leave you uninsured.

How COBRA Works

COBRA (Consolidated Omnibus Budget Reconciliation Act) is a federal law requiring employers with 20 or more employees to offer continuation health coverage after certain qualifying events. The catch: you pay the full cost of coverage yourself -- the portion you paid plus the portion your employer covered -- plus up to a 2% administrative fee.

For most employees, this is a significant shock. If your employer covered 70% of your $600/month family premium, your COBRA premium is the full $600 plus 2% -- about $612/month -- compared to the $180/month you paid while employed.

Important: The average COBRA premium is $609/month for an individual and $1,694/month for a family. These are among the most expensive health insurance options available. Always compare against ACA Marketplace alternatives before electing COBRA.

Qualifying Events for COBRA

COBRA is triggered by specific qualifying events. The coverage duration depends on which event applies:

Qualifying EventWho Can Elect COBRAMax Duration
Job loss (voluntary or involuntary, not for gross misconduct)Employee, spouse, dependents18 months
Reduction in work hours below coverage thresholdEmployee, spouse, dependents18 months
Employee becomes eligible for MedicareSpouse and dependents only36 months
Divorce or legal separationSpouse and dependents only36 months
Employee deathSpouse and dependents only36 months
Dependent child loses dependent status (e.g., turns 26)That dependent only36 months

The 60-Day Enrollment Window

After a qualifying event, your employer has 30 days to notify the plan administrator, who then has 14 days to send you a COBRA election notice. From the date you receive the notice (or your coverage ends, whichever is later), you have 60 days to elect COBRA.

Critically: if you elect COBRA, coverage is retroactive to the day after your employer coverage ended. This means you can wait the full 60 days, see if you incur any medical expenses, and then elect COBRA retroactively to cover those expenses. If you stay healthy during the 60 days, you can skip COBRA and enroll in a Marketplace plan instead.

Note: The retroactive coverage feature is one of COBRA's most underutilized benefits. You don't have to decide immediately. Wait, assess your health needs, and elect within the 60-day window only if you need it. Just be aware you'll owe back premiums for the period you're retroactively covered.

COBRA vs. ACA Marketplace: Which Is Better?

This is the most important decision to make quickly. Losing job-based coverage is a qualifying life event that gives you 60 days to enroll in a Marketplace plan.

FactorCOBRAACA Marketplace
CostVery high -- full employer + employee premium + 2%Potentially low -- subsidies based on income
Same doctors/networkYes -- identical to employer planDepends on plan chosen
Coverage startRetroactive to day employer coverage endedFirst of next month after enrollment
Subsidy eligibleNoYes -- if income qualifies
DurationUp to 18-36 monthsOngoing with annual renewal
Prescription continuityYes -- same formularyMay differ by plan

When COBRA is the better choice

  • You have ongoing treatment mid-cycle (chemotherapy, pregnancy, surgery scheduled)
  • You're seeing out-of-network specialists who won't be in any Marketplace plan
  • Your income is too high to qualify for meaningful Marketplace subsidies
  • You expect to return to employer-sponsored coverage within 1-3 months
  • You've already met a significant portion of your deductible for the year

When ACA Marketplace is the better choice

  • Your income qualifies for Premium Tax Credit subsidies (most people who lose a job qualify)
  • You're generally healthy and don't have immediate pending care
  • You don't have mid-treatment situations requiring continuity
  • You want lower monthly premiums with manageable deductibles

Note: If you lose your job and your household income will be under 400% of the Federal Poverty Level ($62,600 for a single person in 2026), run a Marketplace quote immediately. Subsidies can reduce your premium to $0-$100/month for plans that would cost $400-$600/month without assistance.

State Mini-COBRA Laws

Federal COBRA only applies to employers with 20 or more employees. Many states have "mini-COBRA" laws that extend similar protections to employees of smaller businesses. Coverage duration and rules vary by state. If your employer has fewer than 20 employees, check your state's insurance commissioner website for continuation coverage options.

When COBRA Coverage Ends

COBRA ends when:

  • You reach the maximum coverage duration (18 or 36 months)
  • You fail to pay premiums on time (there's a 30-day grace period)
  • You become covered under another group health plan
  • You become eligible for Medicare
  • The employer's group health plan is terminated entirely

When COBRA ends, it's a qualifying life event that lets you enroll in a Marketplace plan. You have 60 days from the COBRA end date to enroll.

Worked Example: COBRA vs. Marketplace After a Layoff

A 42-year-old with a spouse and one child is laid off from a job where the employer was contributing $1,100/month toward a $1,300/month family health plan (the employee had been paying $200/month). Here's how the two paths compare:

COBRAACA Marketplace
Monthly premium$1,326 (full premium + 2% admin fee)$680-$950 depending on plan and subsidy
Network and providersIdentical to prior employer planMay require switching doctors
Deductible progressCarries over -- no reset mid-yearResets to $0 on a new plan
Enrollment complexitySimple -- same plan, just paying full costRequires choosing a new plan and provider network

If this family has already met a substantial portion of their deductible for the year and has ongoing treatment with specific specialists, COBRA's higher premium can still be the better financial choice because a Marketplace plan would reset their deductible progress to zero and might not include their current specialists. If it's early in the plan year and the family is generally healthy, the Marketplace premium savings -- potentially $375-$650 per month -- usually wins. This is exactly why the comparison needs to happen individually for each household rather than defaulting to either option automatically.

COBRA for Dental and Vision Only

COBRA rights apply separately to each type of group coverage you had -- medical, dental, and vision are treated as distinct plans for COBRA purposes, each with its own election rights. If you want to continue dental and vision but switch to a Marketplace plan for medical, you can elect COBRA for just those specific benefits rather than continuing the full package. This is a detail many people miss on their COBRA election notice, since the paperwork typically presents all benefits bundled together rather than itemizing which ones can be elected independently -- worth a direct call to your former employer's HR department or COBRA administrator to confirm before assuming you have to accept or decline the entire package as a unit.

Action Checklist After Losing Coverage

Working through COBRA and Marketplace options can feel overwhelming during an already stressful job transition, but the decision only needs to be made once per coverage gap, and getting quotes from both paths takes less than an hour.

  1. Note the exact date your employer coverage ends
  2. Watch for your COBRA election notice (arrives within ~44 days)
  3. Within 60 days, get a Marketplace quote at healthcare.gov to compare costs
  4. Assess your upcoming medical needs -- ongoing treatment favors COBRA, good health favors Marketplace
  5. If you elect Marketplace, enroll within 60 days of losing coverage to avoid a gap
  6. If you elect COBRA, set calendar reminders for payment due dates -- missing by even one day can terminate coverage