COBRA vs Obamacare: Which Is Cheaper for Early Retirees?
You left your job before 65. Now you need health insurance until Medicare starts. You have two main paths: COBRA or Obamacare. This guide explains both in plain words. It also covers what changed for 2026.
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Are Obamacare and the Marketplace the same thing?
Yes. "Obamacare," "the ACA," "the Affordable Care Act," and "the Marketplace" all mean the same thing. They are different names for one program. The official name is the Affordable Care Act (ACA). People call it Obamacare after the president who signed it. You buy these plans on the Health Insurance Marketplace at HealthCare.gov or your state's site. So when you read "Obamacare plan," "ACA plan," or "Marketplace plan," they all point to the same place. Many people search "Obamacare," so this guide uses every name.
COBRA vs Obamacare: the key difference
COBRA lets you keep your old job's exact health plan after you leave. It lasts up to 18 months. The catch is the price. As an employee, your boss paid part of your premium. With COBRA, you pay the whole thing yourself, plus a fee of up to 2%. So COBRA is the same plan, but it usually costs a lot more than you paid at work.
Obamacare (the ACA Marketplace) is a new plan you pick yourself. The big plus is help with the cost. Marketplace plans can come with subsidies, also called premium tax credits. A subsidy caps your monthly premium at a share of your income. The lower your income, the more help you get. COBRA has no subsidy at all. You pay full price no matter what.
Which is cheaper for early retirees?
For most early retirees with low or middle income, a subsidized Obamacare plan is cheaper than COBRA. That is the short answer. The subsidy can knock a big chunk off your monthly cost. COBRA gives you no such break. The main case where COBRA wins is when you earn too much to get any subsidy. We explain both cases below. The best move depends on your income for the year, your age, and which doctors you want to keep.
When COBRA wins
COBRA can be the better deal in a few cases:
- Your income is over the subsidy cliff. If you make too much to get any ACA help, you pay full price on the Marketplace too. At that point COBRA's price may be close, and it keeps your same plan.
- You want to keep your current doctors. COBRA is your old plan, so your doctors and network stay the same. A new Marketplace plan may not cover them.
- You already met your deductible. If you paid a lot toward your deductible this year, COBRA lets you keep that progress. A new plan resets it to zero.
- You need a short bridge. COBRA can fill a few months until a Marketplace plan starts or until Medicare begins.
When Obamacare wins
Obamacare (the ACA Marketplace) usually wins when your income is low or middle. Early retirees often have control over their income. You may live on savings, so your taxable income can be small. A small income means a big subsidy. That can make a Marketplace plan far cheaper than COBRA's full price. Obamacare also lets you pick a plan that fits your budget. You can choose a lower premium with a higher deductible, or the other way around. COBRA gives you no choice — it is whatever plan you had at work.
What changed for 2026?
This is the part many old guides get wrong. From 2021 through 2025, the government gave extra subsidies. These enhanced subsidies made Marketplace plans much cheaper. They also removed the income cliff for those years. But the extra help ended on December 31, 2025. So 2026 goes back to the original rules.
Two things come back in 2026. First, the older sliding scale sets how much help you get. Second, the 400%-of-poverty subsidy cliff returns. The cliff is a hard line. If you earn one dollar over four times the poverty line, your subsidy drops to $0. Not smaller — gone. So a tiny bit more income can cost you thousands. Any 2026 calculator that still uses the enhanced rules will give you the wrong answer. CobraCalc uses the real 2026 rules and warns you when a year is near or over the cliff.
How to pick
Two facts make this easier. First, Medicare at 65 ends the whole decision. So you only choose between COBRA and Obamacare from the year you retire until age 64. Second, COBRA is mostly a one-way door. You get about 60 days to elect it after you leave your job. Once you pick a Marketplace plan instead, you usually cannot switch back to COBRA. So think it through before you decide.
The smart way is to run the numbers for each year. Your income may change as a part-time job ends or Social Security starts. That changes your subsidy. CobraCalc does this math for you, year by year, up to age 65.
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This is an estimate to help you plan, not insurance or tax advice. See the disclaimer.