COBRA vs ACA Calculator

Luck Buffer · Free Tool · Updated 2025

A layoff triggers a Special Enrollment Period — you have 60 days to enroll in an ACA Marketplace plan and 60 days to elect COBRA. Most people default to COBRA without comparing costs. This calculator shows you the real monthly and total difference.

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Common Questions

How long does COBRA last after a layoff?

COBRA coverage lasts up to 18 months after a qualifying event such as a layoff or reduction in hours. In some circumstances — disability or a second qualifying event — it can extend to 29 or 36 months. The 18-month clock starts from the date you lose coverage, not the date you elect COBRA.

Is COBRA worth it if you're healthy?

If your job search will be short (under 3 months) and you have upcoming appointments or prescriptions, COBRA may be worth the continuity — no new network to navigate. If you're healthy and your search will last longer, an ACA Marketplace plan is almost always cheaper, especially if your income qualifies for a subsidy. Use the calculator above to compare your specific numbers.

What is the income limit for ACA subsidies?

Under the Inflation Reduction Act (extended through 2025), premium tax credits are available at all income levels above 100% of the Federal Poverty Level. The contribution cap is 8.5% of household income for a benchmark Silver plan — the government covers the rest. There is no longer a hard 400% FPL cliff. Lower income means a larger subsidy.

Can I switch from COBRA to ACA before COBRA expires?

Yes — you can voluntarily cancel COBRA at any time. However, voluntary COBRA cancellation does not trigger a Special Enrollment Period. You must wait for Open Enrollment (November 1 – January 15) unless you have another qualifying life event. The better approach: elect ACA during your original Special Enrollment Period (within 60 days of losing coverage), then cancel COBRA if you don't need it.

How much does COBRA cost for a family of 4?

The national average COBRA premium for family coverage is $1,700–$2,000 per month. This varies significantly by employer plan, insurer, and region. Your exact premium will be on the COBRA election notice your former employer is required to send within 14 days of your qualifying event. If you haven't received it, contact your HR department directly.

What happens if I miss the COBRA enrollment deadline?

You have 60 days from the later of (1) losing coverage or (2) receiving your COBRA election notice to elect COBRA. Miss this window and you permanently lose COBRA eligibility for that coverage period. One useful tactic: if elected, coverage is retroactive to your loss-of-coverage date — so you can wait the full 60 days before deciding. If nothing medical happens, let COBRA lapse unelected. If something does happen, elect within 60 days and the gap is filled retroactively.