What is COBRA insurance and how much does it cost? COBRA is a federal law that lets eligible employees and their dependents keep their employer's group health plan for a limited period after leaving a job, changing to part-time status, or certain other qualifying events. The cost is typically the full premium the employer's plan actually costs — including the share the employer used to cover — plus a small administrative fee, which is usually far higher than what the employee saw deducted from a paycheck while still working, since the employer subsidy disappears.

Article Summary

  • COBRA doesn't create a new insurance plan — it lets you temporarily keep the exact same employer group plan and network you already had, which matters most for anyone mid-treatment or attached to a specific provider.
  • Because the employer's premium subsidy goes away, COBRA premiums are typically the single most expensive part of the decision, often several times higher than what was deducted from a paycheck for the same plan while employed.
  • Losing job-based coverage is a qualifying life event that opens a special enrollment period for ACA marketplace plans, which is often overlooked as a genuinely competitive alternative to COBRA, sometimes at a meaningfully lower cost depending on income-based subsidies.

"By failing to prepare, you are preparing to fail."

Benjamin Franklin

Losing a job is disorienting enough before the question of health insurance even enters the picture, and it usually enters the picture fast — often within days, in a packet of termination paperwork that includes a COBRA notice nobody feels ready to read carefully in that moment. The instinct for a lot of people is to sign up for COBRA reflexively just to avoid a coverage gap, without pausing to compare it against the marketplace alternative that a lost job also happens to unlock. Both options solve the same immediate problem — not going without health insurance during a transition — but they can differ enormously in cost, and the decision is worth five careful minutes rather than a reflexive signature.

What COBRA Actually Does

COBRA, short for the Consolidated Omnibus Budget Reconciliation Act, requires most employers with a group health plan above a certain size to offer departing employees and their covered dependents the option to continue that exact same plan for a limited period after a qualifying event — most commonly job loss, but also reduced work hours, divorce, or a dependent aging out of eligibility. The key word is continue: COBRA doesn't switch you to a different insurance product, it simply extends your existing employer plan, same network, same benefits, same provider relationships, for a set number of months. This matters most for someone in the middle of an ongoing treatment, pregnancy, or relationship with a specific specialist, since it avoids any disruption to care that switching plans might otherwise cause. Electing COBRA generally must happen within a defined window after the qualifying event and the notice from the employer, and coverage can typically be applied retroactively back to the date the previous coverage ended once elected within that window.

Why COBRA Premiums Come as a Shock

While employed, most people only see a fraction of what their health insurance actually costs, because the employer typically covers a substantial share of the premium as part of the overall benefits package. COBRA removes that subsidy: the person electing COBRA generally pays the full premium the plan actually costs, both the employee's previous share and the employer's previous share, plus a small administrative fee on top, which is why COBRA premiums often come as a genuine shock compared to what was being deducted from a paycheck for the identical plan. This is the single biggest factor in deciding whether COBRA makes sense during a coverage gap, and it's worth getting the actual dollar premium amount from the former employer's HR or benefits administrator rather than guessing, since the gap between the old paycheck deduction and the new full premium can be dramatic.

COBRA vs. the ACA Marketplace

Losing employer-based health coverage is itself a qualifying life event that opens a special enrollment period for ACA marketplace plans, meaning someone doesn't have to wait for the annual open enrollment window to shop for a new individual plan after a job loss. This is worth comparing against COBRA seriously rather than treating COBRA as the automatic default, because marketplace plans are priced differently and, depending on household income for the year, may come with premium tax credits that can make a marketplace plan meaningfully cheaper than the unsubsidized full premium COBRA requires. The tradeoff is generally network and plan design — a marketplace plan may have a different network than the employer's group plan, which matters if keeping specific doctors or an ongoing treatment relationship intact is a priority. Getting an actual marketplace quote alongside the COBRA premium quote, ideally before the COBRA election deadline passes, is the only reliable way to see which option is genuinely cheaper for your specific household.

Making the Decision Without Rushing It

Get the exact COBRA premium in writing from the former employer's benefits administrator as soon as possible after the qualifying event, since assuming a number based on the old paycheck deduction will significantly understate the real cost. In parallel, get a marketplace quote for the same household during the special enrollment period that job loss opens up, checking both the premium after any income-based subsidy and whether your priority doctors and medications are in-network. If you're mid-treatment or strongly attached to your current provider network, weigh that continuity value explicitly against the cost difference rather than defaulting purely on price. Remember that COBRA elections can typically be made retroactively within the election window, so there's usually no need to rush a decision within the first few days after losing a job as long as the formal deadline stated in the COBRA notice is respected.