COBRA Calculator
Calculate COBRA continuation cost vs marketplace alternatives. See total cost for 18-36 months.
By Konstantin Iakovlev · Updated April 2026 · Source: HealthCare.gov
Monthly COBRA Cost
$612.00
Total (18 mo)
$11,016.00
Cheaper Option
Marketplace
COBRA Cost Breakdown
| Full Monthly Premium | $600.00 |
| COBRA Admin Fee (2%) | + $12.00 |
| Monthly COBRA Cost | $612.00 |
| You Used to Pay | $150.00 |
| Monthly Increase | + $462.00 |
| Total COBRA (18 months) | $11,016.00 |
COBRA vs Marketplace
| Monthly COBRA | $612.00 |
| Monthly Marketplace | $400.00 |
| Monthly Difference | $212.00 |
| Total COBRA (18 mo) | $11,016.00 |
| Total Marketplace (18 mo) | $7,200.00 |
| Total Savings with Marketplace | $3,816.00 |
COBRA makes sense when: You are mid-treatment, your plan has a better network, or you have already met your deductible.
Marketplace makes sense when: You qualify for ACA subsidies (income below 400% FPL), you want lower premiums, or you need long-term coverage.
ACA Subsidy: If your household income is under ~$62.6K (single) or ~$128.6K (family of 4), you may qualify for premium tax credits on the marketplace.
Use the COBRA Calculator above to calculate your results. Enter your values and see instant results — all calculations run in your browser.
Disclaimer: This calculator is for informational purposes only and does not constitute tax, financial, or legal advice. Results are estimates based on the information you provide and current rates. Always consult a qualified tax professional or financial advisor for advice specific to your situation.
How It Works
After a qualifying event, you typically have an 18 to 36-month window where COBRA continuation coverage and a marketplace health plan sit side by side as your two realistic options. Seeing the full cost of each matters because 2026 COBRA premiums are projected to average roughly $700 for individuals and $2,000 for families before administrative fees, and the right call depends heavily on whether marketplace subsidies are within reach. The comparison here lays the long-term price of both paths out in one place.
On the COBRA side, the math applies the statutory 102% premium (100% of the employer's cost plus a 2% administrative fee) to the prior employer-sponsored premium you report. Marketplace figures start from average 2026 silver plan costs for your age and location, then subtract estimated Advanced Premium Tax Credits (APTCs) tied to your projected household income relative to the Federal Poverty Level (FPL). Both results are projected across 18, 24, and 36 months so the totals are directly comparable.
Real marketplace premiums and subsidies move with your exact location, income, and plan choice, so treat the marketplace estimate as a starting point rather than a quote. Deductibles and out-of-pocket maximums apply to COBRA and marketplace plans alike and can reshape which option is genuinely cheaper once you use care. The COBRA administrative fee is easy to wave off, yet over a year or more it quietly adds up to hundreds of dollars.
Example: Individual COBRA vs. Marketplace for 18 Months
- 1 Step 1: Input your prior monthly employer-sponsored premium of $650 (individual), an annual household income of $45,000, and a zip code in a medium-cost area.
- 2 Step 2: The calculator determines your monthly COBRA cost will be $663 ($650 x 1.02). It then estimates a marketplace silver plan premium of $750/month, with an estimated APTC of $200 based on your income and FPL. Your net marketplace premium would be $550/month.
- 3 Step 3: Over 18 months, your COBRA cost is $11,934 ($663 x 18). Your marketplace cost is $9,900 ($550 x 18).
- 4 Step 4: In this scenario, opting for a marketplace plan would save you $2,034 over 18 months compared to continuing COBRA, demonstrating the potential financial advantage of exploring marketplace alternatives.
Source: HealthCare.gov · Last updated: April 2026
Frequently Asked Questions
How much does COBRA cost per month?
How long can I stay on COBRA?
Is COBRA cheaper than marketplace insurance?
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