COBRA vs ACA 2026: The Definitive Cost Comparison (With Calculator)

You just lost your job — or you're about to leave one. Your employer's HR department hands you a COBRA election form with a monthly premium that makes your eyes water. Meanwhile, you've heard that ACA marketplace plans offer subsidies. Which do you choose?

In 2026, with the return of the subsidy cliff at 400% FPL, the answer depends almost entirely on your projected annual income. For most people who qualify for subsidies, ACA marketplace coverage is dramatically cheaper. But there are specific situations where COBRA wins. This guide walks through the math, side by side.

Run your own comparison with our COBRA vs. Marketplace calculator, or use the ACA subsidy calculator to estimate your premium tax credit first.

What COBRA Actually Costs in 2026

COBRA allows you to continue your employer's group health plan for up to 18 months (36 months in some cases). The catch: you pay the full premium — the portion you were paying plus the portion your employer was paying — plus a 2% administrative fee.

Most employees have no idea what their employer pays. According to KFF, the average employer-sponsored health insurance premium in 2025 was:

When you were employed, you might have been paying $200/month for single coverage. Your employer was paying the other $600. On COBRA, you pay $800 + 2% = $816/month. That's a 4x increase in your monthly health insurance cost — with no change in coverage.

What ACA Marketplace Coverage Costs After Job Loss

Losing your job triggers a Special Enrollment Period (SEP), giving you 60 days to enroll in an ACA marketplace plan. Your subsidy is based on your projected annual income for the calendar year — not your prior salary.

This is the critical insight most people miss: if you lose your job mid-year, your projected annual income may be much lower than your salary suggests, potentially qualifying you for large subsidies.

Example: You earned $80,000/year and lose your job on July 1. Your income for January–June was $40,000. If you collect $1,500/month in unemployment for the rest of the year ($9,000), your total annual income is $49,000. For a single person, that's about 325% FPL — well under the cliff and eligible for a meaningful subsidy. Your ACA Silver plan might cost $200–$350/month after the premium tax credit, compared to $816/month for COBRA.

Side-by-Side Comparison: COBRA vs. ACA Marketplace

When COBRA Wins

Despite the higher cost, COBRA is the better choice in these specific situations:

• ✓
  You're mid-treatment with a specific provider. Switching to an ACA plan means a new network. If you're mid-surgery, mid-pregnancy, or mid-cancer treatment and your providers are not in any marketplace network, COBRA's continuity is worth the premium.
• ✓
  You've already met your deductible. If you've spent $5,000 toward your deductible and it's July, switching to an ACA plan resets that progress to zero. COBRA keeps your existing deductible accumulation.
• ✓
  Your income is too high for subsidies. If your projected annual MAGI exceeds 400% FPL ($62,160 single / $128,280 family of four), you won't receive ACA subsidies and full-price marketplace plans may cost as much as COBRA — with a potentially worse network.
• ✓
  You expect to return to employer coverage quickly. If you have a new job starting in 6 weeks, paying one month of COBRA to bridge the gap avoids the hassle of enrolling in and then canceling a marketplace plan.

When ACA Marketplace Wins

For the majority of people losing employer coverage, ACA wins decisively:

• ✓
  Your projected annual income qualifies for subsidies. This is the primary reason. With subsidies, your monthly premium could drop from $816 (COBRA) to $200 or less. The savings compound over months.
• ✓
  You don't need continuity with specific providers. If you're healthy or your providers participate in marketplace networks, there's no reason to pay 3–4x more for COBRA.
• ✓
  You need coverage for more than a few months. ACA coverage renews indefinitely. COBRA expires after 18 months. If you expect an extended period without employer coverage, starting on the marketplace immediately avoids a future transition.
• ✓
  Your income qualifies for cost-sharing reductions. If your projected MAGI is below 250% FPL, you may qualify for CSR Silver plans with dramatically lower deductibles and copays — coverage that COBRA can't match at any price.

The 60-Day Window: A Strategic Approach

You have overlapping 60-day windows for both COBRA and marketplace enrollment. Here's a smart way to use them:

1. 1
   Don't elect COBRA immediately. You have 60 days. Wait and see if you need it. COBRA can be elected retroactively within this window.
2. 2
   Shop the ACA marketplace immediately. Apply for coverage through healthcare.gov to see your subsidy amount and plan options. Your marketplace SEP also lasts 60 days.
3. 3
   Compare total costs. Calculate: COBRA premium × expected months vs. ACA premium (after subsidy) × expected months. Factor in deductible differences if you've already accumulated spending.
4. 4
   If you have a medical event during the gap, elect COBRA retroactively. It covers you back to the date your employer coverage ended. Pay the back premiums and you're covered as if there was never a gap.
5. 5
   Enroll in ACA before your 60-day SEP expires. This is the deadline that matters most. If you miss it, you'll need to wait for Open Enrollment (November–January).

Projecting Your Income After Job Loss

The most common mistake people make is using their old salary as their projected income. The marketplace asks for your estimated annual MAGI for the current calendar year. After a job loss, that includes:

• Wages earned before job loss (W-2 income through your last paycheck)
• Severance pay (taxable income in the year received)
• Unemployment insurance benefits (taxable income in most states)
• Any other income (investments, side work, rental income, etc.)
• Minus above-the-line deductions (traditional IRA, HSA, student loan interest, etc.)

Example: A married couple (family of two) earning $130,000 combined. One spouse loses their job on April 1, having earned $32,500 in Q1. They collect $2,000/month in unemployment ($18,000 for April–December). The other spouse continues earning $65,000. Projected annual MAGI: $32,500 + $18,000 + $65,000 = $115,500. For a family of two, 400% FPL is $83,700 — they're over the cliff.

But if the working spouse maxes out their traditional 401(k) ($23,500) and both contribute to HSAs ($8,550 family): $115,500 − $23,500 − $8,550 = $83,450. Just under the cliff. See our guide on reducing MAGI for more strategies.

Real Cost Scenarios: 6 Months of Coverage

Unemployment Benefits and ACA Subsidies

Yes, unemployment insurance counts as taxable income and is included in your MAGI. However, for many people, the combination of partial-year wages plus unemployment still results in annual MAGI well below the subsidy cliff. This is particularly true for mid-year and late-year job losses.

Note: during 2021, the American Rescue Plan excluded the first $10,200 of unemployment income from federal taxes. That provision has expired. In 2026, all unemployment income is fully included in MAGI.

The Bottom Line

For the vast majority of people losing employer coverage in 2026, ACA marketplace coverage with premium tax credits is significantly cheaper than COBRA. The savings can be $5,000–$15,000+ over 6–12 months.

The exceptions are narrow: mid-treatment continuity, high earners above the cliff, or very short gaps. For everyone else, the ACA marketplace is the clear financial winner.

Use our COBRA vs. Marketplace calculator to compare your specific costs, or start with the ACA subsidy calculator to see your projected premium tax credit. Don't let your 60-day Special Enrollment Period expire without making an informed decision.