Retirement Healthcare Options
This is a classic question asked when someone wants to retire earlier than age 65. How do you bridge health insurance until Medicare kicks in?
Consolidated Omnibus Budget Reconciliation Act lets you keep your employer's health plan after leaving a job for a period of up to 18 months (sometimes 36).
Same doctors, network, and coverage. No disruption during early retirement, especially if you are mid-treatment.
Expensive (100% premium + 2% admin fee), temporary, and lacks any income-based subsidies.
Plans come directly through healthcare.gov or your designated state marketplace platform.
Income-based subsidies and multiple premium options. Can be utilized for many years consecutively until you transition into Medicare eligibility.
Networks may be narrower, you may need to switch your core doctors, and plan choices can sometimes feel complex to evaluate.
You just retired, more importantly mid-year, and you want immediate short-term continuity, you are actively in the middle of a continuous medical treatment, or you are transitioning to Medicare within a short window.
You are retiring well before reaching 65, you can reliably control your modified adjusted gross income (while understanding IRMAA and taxes), and you want to optimize your long-term fixed healthcare costs.
Start with COBRA for your first few months of transition out of work, then formally shift your coverage over to an optimized ACA plan during the standard open enrollment period.
Every dimension that matters to an early retiree, in one place.
| Factor | ⚖️ COBRA | 🛡️ ACA Marketplace |
|---|---|---|
| Eligibility | Employees who lose job-based coverage through quitting, retirement, layoff, or reduction in hours. Dependents covered under original plan also qualify. | Any U.S. resident not eligible for Medicare or affordable employer coverage. Losing job-based coverage triggers a 60-day Special Enrollment Period. |
| Monthly Cost | 100% of premium + 2% admin fee. High If your employer paid $1,200/mo and you paid $200, your COBRA cost is ~$1,428/mo. |
Income-based subsidies (PTCs) can dramatically reduce cost. Can be very low At 150% FPL, premiums can be $0. Even at higher incomes, subsidies apply up to 400%+ FPL. |
| Duration | 18 months standard. Extended to 36 months for dependents in cases of divorce, death, or Medicare entitlement of the covered employee. | No time limit. You can maintain ACA coverage every year until you turn 65 and enroll in Medicare — potentially 10–15 years of coverage. |
| Network & Doctors | Identical to your employer plan. Best continuity Same doctors, hospitals, specialists, and formulary. Critical if you're mid-treatment. |
Networks vary widely by plan and insurer. Varies Silver and Gold plans often have broader networks. Verify your doctors are in-network before enrolling. |
| Subsidies | None. No subsidy The full premium is entirely out-of-pocket, regardless of your income level. |
Premium Tax Credits (PTCs) and Cost-Sharing Reductions (CSRs). Potentially large Subsidies are based on MAGI. In early retirement, you can often control income to maximize them. |
| Enrollment Window | You have 60 days from losing coverage to elect COBRA. Coverage is retroactive to the date of loss — so you can wait to decide if you need it. | Open Enrollment: Nov 1 – Jan 15 (most states). Losing job-based coverage triggers a 60-day Special Enrollment Period any time of year. |
| Dental & Vision | Included if your employer plan included dental/vision. You can elect dental/vision COBRA separately from medical COBRA. | Medical plans do not include dental/vision. Separate stand-alone dental and vision plans must be purchased on the marketplace or directly from insurers. |
| Pre-existing Conditions | Fully covered — you keep your existing plan with no underwriting. | Fully covered — ACA prohibits denial or higher premiums based on health status. |
| HSA Compatibility | Only compatible if the underlying employer plan was an HDHP. You can contribute to an HSA while on COBRA-continuation of an HDHP. | Must enroll in an HSA-eligible High Deductible Health Plan (HDHP) on the marketplace to contribute to an HSA. Not all ACA plans are HSA-compatible. |
| Impact on Taxes | COBRA premiums are not deductible unless you itemize and total medical expenses exceed 7.5% of AGI. No subsidy interaction. | PTCs reconciled at tax time. Income management is critical — large capital gains or Roth conversions can reduce or eliminate subsidies mid-year (clawback risk). |
| Switching to Medicare | COBRA does not delay Medicare enrollment deadlines. You must enroll in Medicare Part B within your Initial Enrollment Period or face late penalties. | Same rule applies. Turning 65 qualifies you to enroll in Medicare; you must do so on time regardless of current ACA coverage. |
In early retirement, your taxable income is often whatever you choose it to be — you control when to take IRA withdrawals, realize capital gains, or do Roth conversions. Keeping MAGI between 200–300% of FPL (roughly $29,000–$43,000 for a single person in 2025) can yield substantial subsidies, potentially bringing net ACA premiums well under $200/month for solid Silver coverage. The key is to account for all MAGI sources: Traditional IRA withdrawals, Social Security (if any), capital gains distributions from funds, and interest income all count.
Doing a large Roth conversion in the same year you're collecting ACA subsidies can push your MAGI over the threshold mid-year, triggering a subsidy clawback at tax time. If you plan to do Roth conversions during early retirement, carefully model the MAGI impact before December 31 of each year. Consider spreading conversions over multiple years, and always run the numbers before exceeding key thresholds. The ACA's "subsidy cliff" was softened by the Inflation Reduction Act (no hard cutoff above 400% FPL), but cost still rises sharply with income.
If your employer plan was an HSA-eligible High Deductible Health Plan (HDHP), you can continue contributing to your HSA while on COBRA (as long as the COBRA plan itself is still an HDHP). This gives you a brief window — typically the months between retirement and your ACA enrollment — to max out your annual HSA contribution. In 2025, the HSA limit is $4,300 for self-only and $8,550 for family (plus $1,000 catch-up if 55+). HSA funds roll over indefinitely and can be used tax-free for Medicare premiums and medical expenses in retirement.
What most early retirees actually face — and which path fits each situation.
Neither COBRA nor ACA coverage counts as "creditable coverage" that allows you to defer Medicare Part B without penalty. Your Initial Enrollment Period (IEP) is a fixed 7-month window around your 65th birthday. Missing it means a 10% permanent premium surcharge per year delayed. Cancel COBRA or ACA the month before Part B starts — do not keep them as primary coverage after Medicare begins.
When you enroll in Medicare Part A and Part B, notify your ACA marketplace to cancel your plan. If you enrolled through healthcare.gov or Covered California, you must actively cancel — it does not happen automatically. If you're receiving PTCs, report your Medicare enrollment so subsidies stop; otherwise you may need to repay them on your tax return.
ACA plans include prescription drug coverage in every metal tier. Medicare does not — you must separately enroll in a Part D plan (or a Medicare Advantage plan that includes drugs). When transitioning from ACA to Medicare, review your current prescriptions and compare Part D formularies before your enrollment date. Delaying Part D enrollment also triggers a permanent penalty if you go more than 63 days without creditable drug coverage.
Medicare Part B and Part D premiums are based on your income from two years prior (the IRMAA lookback). If you are on ACA with low income during early retirement but then take a large distribution in year 63–64, that income shows up in your Medicare premiums at 65–66. Conversely, keeping MAGI low in the two years before Medicare can keep your Part B premium at the base rate (~$185/month in 2025) rather than the IRMAA-surcharge tiers.