If you lose employer coverage mid-year, the cheaper choice is usually the one with the lower total cost for the rest of the year, not the lower premium. COBRA keeps your exact plan, doctors and deductible progress but makes you pay the whole premium yourself; a Marketplace plan often costs less per month, especially with a premium tax credit, but usually starts your deductible over and may change your network.
This guide gives you the framework and a side-by-side worksheet. Fill in your own numbers from your COBRA election notice and a Marketplace quote, and the answer tends to become obvious.
On this page
- The two options in plain English
- Why the COBRA premium looks so high
- The deadlines that decide your options
- Deductible progress: the number most people skip
- Premium tax credits and how they change the math
- Side-by-side worksheet: fill in your numbers
- Factors that don't fit in a worksheet
- A simple decision path
- Frequently asked questions
01The two options in plain English
COBRA continuation coverage is a federal right to stay on your former employer's group health plan for a limited time after you leave the job or lose eligibility. It generally applies to private employers with 20 or more employees, plus state and local government plans; many states have their own "mini-COBRA" rules for smaller employers. Nothing about the plan changes: same insurer, same network, same deductible and out-of-pocket maximum, same plan year. What changes is who pays.
A Marketplace plan is individual coverage you buy through HealthCare.gov or your state's exchange. You pick a new plan, which may have a different insurer, network, drug list and deductible. In exchange you may qualify for a premium tax credit based on your expected household income for the year, which can lower the monthly premium substantially.
COBRA works in your favor when
- You've met much of your deductible or out-of-pocket max this year
- You're mid-treatment, pregnant or scheduled for surgery with in-network doctors
- Your income is high enough that Marketplace subsidies would be small
- You only need a short bridge before new job coverage starts
A Marketplace plan works in your favor when
- Your income for the year qualifies you for a meaningful tax credit
- You've used little care this year, so deductible progress is small
- Your doctors and prescriptions are covered by an available plan
- You expect to need coverage for many months
02Why the COBRA premium looks so high
While you were employed, your paycheck showed only your share of the premium. Your employer quietly paid the rest, often the larger part. Under COBRA, the U.S. Department of Labor explains that the plan can charge you up to 102% of the cost to the plan: the full premium plus up to a 2% administrative fee. (Longer extensions for disability can allow a higher percentage in some cases.)
So the COBRA number on your election notice isn't a penalty; it's the true price of the coverage you already had. That matters for comparison, because a Marketplace plan's sticker price is also an unsubsidized full price. The fair comparison is COBRA's full price versus the Marketplace price after any tax credit you qualify for.
How this works
COBRA premiums are usually paid with after-tax money once you're off payroll. Some former employers include a temporary premium subsidy in a severance agreement. If yours does, use the amount you actually pay, and note the date the subsidy ends.
03The deadlines that decide your options
Timing rules shape this decision more than most people expect. The general pattern is below; your COBRA election notice and the Marketplace confirm the exact dates for your case.
- Marketplace window opens earlyHealthCare.gov's guidance for people losing job-based coverage is that you can apply from 60 days before the coverage ends through 60 days after. Applying before the end date can help you avoid a gap.
- COBRA election periodYou generally get at least 60 days to elect COBRA, counted from the later of the date coverage ends or the date the election notice is provided. Read the notice; it states your deadline.
- COBRA first paymentThe first premium is generally due within 45 days after you elect, and that payment covers the months back to the date your job coverage ended.
- COBRA coverage can be retroactiveIf you elect within the window and pay, coverage generally applies back to the day your employer coverage ended, so claims in the gap can be processed.
- Open EnrollmentOutside your special window, you can switch to a Marketplace plan during annual Open Enrollment (on HealthCare.gov, November 1 to January 15; state exchanges can differ).
Watch out
HealthCare.gov states that voluntarily dropping COBRA, or stopping payments, doesn't qualify you for a Special Enrollment Period. If you choose COBRA and change your mind after the 60-day window has passed, you may be stuck until Open Enrollment unless you have another qualifying life event. If COBRA runs out at the end of its normal term, that does open a new window.
The retroactive rule tempts some people to "wait and see": decline nothing, pay nothing, and elect COBRA only if something happens. That's a real feature of the law, but it carries risk. Providers may treat you as uninsured in the meantime, pharmacies may not fill prescriptions under the plan until coverage is reinstated, and missing the election or payment deadline by even a day can forfeit COBRA. If you use that strategy at all, track the dates in writing and talk with the plan administrator before relying on it.
04Deductible progress: the number most people skip
Your deductible and out-of-pocket maximum are counted per plan, per plan year. With COBRA you keep everything you've already paid toward them. A new Marketplace plan starts from zero.
That can flip the answer. Suppose you've already had a surgery this year and are close to your out-of-pocket maximum. On COBRA, most covered in-network care for the rest of that plan year could cost you little beyond the premium. On a new plan, you'd start paying toward a fresh deductible.
Two details refine the math:
- When each plan year resets. Marketplace plans run on the calendar year, so their deductible resets on January 1. Your employer's plan year may not be the calendar year. If you lose coverage in October and the employer plan resets in January anyway, your deductible advantage is only worth the next few months.
- How much care you expect. Deductible progress only saves money if you'll actually use care. If you expect few visits, a lower Marketplace premium usually beats a deductible head start you won't use.
For a deeper look at how deductibles can quietly make insured care expensive, see our piece on the deductible trap.
05Premium tax credits and how they change the math
The premium tax credit is based on your estimated household income for the whole calendar year, not your income at the moment you apply. If you earned a salary for part of the year and then had little or no income, your annual estimate may be lower than you expect. Severance, unemployment benefits and a new job later in the year all count toward that estimate, so project carefully and update the Marketplace if things change; the credit is reconciled on your tax return.
Two eligibility rules matter here:
- Being offered COBRA doesn't make you ineligible for a tax credit. CMS guidance says you can qualify as long as you decline to enroll in COBRA.
- While you're enrolled in COBRA, you can't use a premium tax credit for a Marketplace plan.
Subsidy rules and generosity have changed in recent years, which is exactly why you should get a live quote for your own income rather than rely on a rule of thumb. We cover what changed and what it means in ACA subsidies expired: your options now; for this decision, all you need is the net monthly premium the Marketplace shows you.
Verify before you rely on it
Enrollment windows, subsidy rules and Open Enrollment dates can change from year to year. Confirm current rules on healthcare.gov (or your state exchange) and the COBRA rules on dol.gov before you decide.
06Side-by-side worksheet: fill in your numbers
Estimate costs for the months you'll actually need coverage, ending either when new job coverage is expected or at the end of the relevant plan year. Do the worksheet twice, once for COBRA and once for your best Marketplace option.
COBRA total = (monthly COBRA premium × months needed) + expected out-of-pocket, using your remaining deductible and out-of-pocket max
- Monthly COBRA premiumFrom your election notice (full cost, up to 102%)
- Months of coverage neededUntil new coverage, or end of plan year
- Deductible remaining this plan yearPlan portal or latest EOB
- Out-of-pocket max remainingYour ceiling for covered in-network care
- Expected out-of-pocket for planned careVisits, prescriptions, scheduled procedures
- COBRA estimated total
Marketplace total = (monthly premium after tax credit × months needed) + expected out-of-pocket starting from a new deductible
- Monthly premium after tax creditFrom a live HealthCare.gov or state exchange quote
- Months of coverage neededSame period as the COBRA column
- Plan deductible (starts at zero met)Check the plan's Summary of Benefits and Coverage
- Out-of-pocket maximumResets every January 1
- Expected out-of-pocket for planned careInclude any doctor or drug that's out of network
- Marketplace estimated total
A useful sanity check: your worst case on either plan is roughly premiums for the period plus the out-of-pocket maximum. Compare those two worst cases as well as your expected case.
07Factors that don't fit in a worksheet
| Factor | Why it matters | Weight | What to check |
|---|---|---|---|
| Ongoing treatment | Switching networks mid-treatment can mean new doctors, new authorizations and delays. | High | Are your specialists in the Marketplace plan's network? |
| Prescriptions | Drug lists and tiers differ by plan; a covered drug can become expensive. | High | Search each drug on the plan's formulary. |
| Prior authorizations | Approvals usually don't transfer to a new insurer. | Medium | Is anything scheduled that needed approval? |
| Dental and vision | COBRA can include these if you had them; Marketplace medical plans often cover adult dental and vision separately or not at all. | Low | Do you need them in the next few months? |
| Family coverage | Each covered family member generally has their own COBRA election right. | Medium | Could one person keep COBRA while others switch? |
Weights describe how often each factor changes the decision, not a dollar amount.
Also re-read what your current plan actually covers before assuming COBRA is the "safe" choice. Our guide to what your insurance actually covers walks through the common gaps.
08A simple decision path
- Write down the date your employer coverage ends and the 60-day dates on either side of it
- Find your COBRA election deadline and first-payment deadline on the notice
- Get your deductible and out-of-pocket progress from the plan portal
- Get a live Marketplace quote using a realistic full-year income estimate
- Check your doctors and prescriptions in the top Marketplace plan's network and formulary
- Fill in both worksheet columns for expected cost and worst case
- Choose before the Marketplace window closes, and keep copies of every notice and confirmation
Frequently asked questions
Can I enroll in COBRA and then switch to a Marketplace plan later?
Yes, but timing matters. If you're still within the 60-day period after losing job-based coverage, you can switch. After that, voluntarily ending COBRA generally doesn't open a Special Enrollment Period, so you'd wait for Open Enrollment unless you have another qualifying event or your COBRA period ends.
Does COBRA count toward the deductible I already paid this year?
Yes. COBRA is the same group plan, so payments you've already made toward the deductible and out-of-pocket maximum carry over for the rest of that plan year. A new Marketplace plan starts at zero.
Can I get a premium tax credit if I was offered COBRA?
Being offered COBRA doesn't disqualify you. You can qualify for a premium tax credit on a Marketplace plan as long as you don't enroll in COBRA and you meet the other eligibility rules, including income.
What if I don't elect COBRA right away and then get sick?
COBRA elections and first payments made within the deadlines generally apply coverage back to the date your job coverage ended. Missing a deadline can forfeit the right entirely, and providers may treat you as uninsured until coverage is reinstated, so don't rely on this without tracking the dates carefully.
How long does COBRA last?
For job loss or reduced hours, COBRA generally lasts up to 18 months, with longer periods in some situations such as disability or certain family events. Your election notice states the maximum period that applies to you.
General information only. This article explains how medical pricing, billing and coverage work. It is not medical, legal, tax or insurance advice. Prices, rules and limits change; confirm current details with the provider, your insurer, the official source cited, or a licensed professional before you decide.
Weighing COBRA against a Marketplace quote?
Send us your COBRA election notice and the Marketplace plan you're considering. We'll walk through the numbers with you in plain English and point out what to double-check. We can't promise a specific outcome, but we can help you see the full picture.
Send us your quote or bill