The COBRA Decision: What Most People Get Wrong
When you lose employer-sponsored health insurance — through job loss, reduction in hours, or leaving a job voluntarily — you face a critical 60-day window to decide between COBRA continuation coverage and enrolling in an ACA Marketplace plan. Most people default to COBRA because it's familiar and requires no research, but this is often the most expensive choice available.
Under COBRA, you pay 100% of your group health plan premium plus a 2% administrative fee — that's both the share you paid as an employee and the much larger share your employer was paying on your behalf. The average employer contribution for family coverage is over $16,000 per year. When you lose your job, that contribution disappears and you absorb the entire cost. What felt like a $400/month benefit can become a $1,800/month obligation overnight.
ACA Marketplace plans, by contrast, are priced independently and come with income-based premium tax credits for most households. Losing employer coverage is a qualifying life event that opens a 60-day Special Enrollment Period, so you don't have to wait for open enrollment. This calculator helps you compare your actual out-of-pocket costs side by side — including the subsidy you may qualify for — so you can make a fully informed decision.
How to Use This Calculator
- 1.Enter your current COBRA premium. This should be on your COBRA election notice, which employers are required to send within 14 days of the qualifying event. If you haven't received it, ask your former HR department — they must provide it.
- 2.Enter your household income. Use your projected annual household income for the current year, not last year's income from your W-2. If you're unemployed, estimate conservatively — Marketplace subsidies are based on projected income, not past income.
- 3.Enter household size. Include yourself, your spouse, and any dependents you claim on your tax return. Household size affects the Federal Poverty Level thresholds used to calculate subsidy eligibility.
- 4.Select your state. Marketplace plan costs and available plans vary significantly by state. States with their own exchanges (like California's Covered California) sometimes have different plan availability than federal HealthCare.gov states.
- 5.Review the side-by-side comparison. The calculator shows your estimated monthly COBRA cost, your estimated Marketplace Silver plan benchmark cost before subsidies, your estimated subsidy amount, and your net monthly Marketplace cost after subsidies.
Understanding Your Results
- Estimated Monthly COBRA Cost
- This is the full premium you'd pay to continue your exact employer plan under COBRA, including the 2% admin fee. It preserves your current network and benefits but at full, unsubsidized cost.
- Estimated Monthly Marketplace Cost (After Subsidy)
- This is the net premium for a benchmark Silver plan in your area after applying your estimated Advanced Premium Tax Credit (APTC). Your actual plan choices range from Bronze (lower premium, higher cost-sharing) to Gold (higher premium, lower cost-sharing).
- Estimated Annual Savings
- The difference between COBRA and subsidized Marketplace premiums over 12 months. Note that plan benefits and networks may differ — if your current doctors or prescriptions are important, verify network participation before switching.
- Cost-Sharing Reduction (CSR) Eligibility
- Households earning 100–250% FPL who enroll in Silver plans also receive Cost-Sharing Reductions that lower deductibles, copays, and out-of-pocket maximums significantly. This is separate from the premium subsidy and further improves the Marketplace value proposition.
Frequently Asked Questions
How much does COBRA insurance typically cost per month?+
COBRA requires you to pay the full premium — both the employee portion and the employer contribution — plus a 2% administrative fee. The average family plan costs about $24,000 per year; under COBRA, you pay all of it, typically $1,700–$2,200/month for a family or $600–$900/month for a single person.
When is COBRA worth it despite the high cost?+
COBRA is worth considering if you're mid-treatment and your providers aren't in any Marketplace network, if you expect to return to employer coverage within 1–3 months, or if you're close to meeting your current plan's out-of-pocket maximum. In most other situations, Marketplace plans with subsidies are cheaper.
How long do I have to elect COBRA after losing coverage?+
You have 60 days from the later of your coverage end date or your COBRA election notice to elect COBRA. Coverage is retroactive to the day after your employer coverage ended, so you can wait to see if you need care before committing — but you must pay all retroactive premiums upon election.
Do I qualify for ACA Marketplace subsidies if I'm offered COBRA?+
Yes. Being offered COBRA does not disqualify you from Marketplace premium tax credits. If your household income falls between 100% and 400% of the Federal Poverty Level, you may qualify for substantial subsidies. Under enhanced subsidies, many households earning up to 400% FPL pay no more than 8.5% of income on benchmark Silver plan premiums.
Can I switch from COBRA to a Marketplace plan?+
Yes. Losing COBRA coverage by exhausting your 18-month eligibility qualifies as a Special Enrollment Period trigger, giving you 60 days to enroll in a Marketplace plan. Note: voluntarily dropping active COBRA does NOT trigger an SEP, so plan the timing carefully if you want to switch mid-year.
Related Articles
COBRA Insurance: Is It Worth It?
A complete analysis of when to elect COBRA vs. alternatives, with real cost examples for different income levels.
HSA vs. FSA in 2026: Which Is Right for You?
Compare Health Savings Accounts and Flexible Spending Accounts — contribution limits, eligibility rules, and tax benefits.
ACA Open Enrollment 2026 Guide
Key dates, plan tier comparisons, and how to estimate your subsidy for the 2026 ACA enrollment period.
Jennifer Walsh, RN
Registered Nurse & Health Insurance Educator
Jennifer worked for 10 years as an ER and ICU nurse before pivoting to health insurance advocacy and consumer education. She holds a health insurance license and specializes in helping patients navigate coverage transitions, including COBRA, ACA enrollment, and Medicare. She serves as Cover Forge USA's health coverage advisor.
Updated March 2026
Get Insurance Rate Alerts
We monitor rate filings in all 50 states. Get notified when rates change in your area — and discover new ways to save.
- ✓State-specific rate change alerts
- ✓Seasonal enrollment deadline reminders
- ✓Expert tips to lower your premiums
- ✓New coverage options in your state
Free forever. Unsubscribe with one click. No spam, ever.
Important Disclaimer
This site provides general educational information only and is not a substitute for professional insurance advice. All rates, data, and coverage details are estimates and may not reflect your actual premiums. Insurance availability and pricing vary by state, insurer, and individual risk factors. Always consult a licensed insurance professional in your state before making coverage decisions.