Healthcare Before Medicare: The Gap Nobody Talks About Enough
Medicare starts at 65. If you retire at 45, you’re funding your own health coverage for 20 years. Here’s every option, the real costs, and the income strategy that keeps it affordable.
Five ways to cover the gap
Every realistic coverage path for early retirees, side by side. Understand the landscape first — the strategy comes after.
| Option | Cost range | Duration | Best for | Caveats |
|---|---|---|---|---|
| ACA Marketplace | $0–$800/mo subsidized | Until Medicare at 65 | Most early retirees — income manageable | Requires MAGI management |
| COBRA | $600–$2,000/mo | Up to 18 months | Keeping existing doctors, near-term bridge | Expensive; expires after 18 months |
| Spouse’s employer plan | Typically $200–$600/mo | While spouse works | Dual-income households where one keeps working | Dependent on spouse’s employment |
| Part-time work (Barista FIRE) | Employer-subsidized | While working part-time | Those comfortable with part-time work for benefits | Limits full retirement flexibility |
| Health sharing ministries | $200–$600/mo | As long as enrolled | Healthy individuals, low medical needs | NOT insurance. Pre-existing conditions excluded. |
ACA Marketplace
Buy a plan through healthcare.gov and receive Premium Tax Credits based on income — not assets. For most early retirees, this is the main play, because income is the one lever you actually control after you stop working.
COBRA
Continues your exact employer plan, same doctors, same network — at full price plus a 2% fee. Best as a short bridge, and there’s a lesser-known timing trick covered below.
Spouse’s Employer Plan
The simplest option if it’s available: one spouse keeps a job partly for the health benefits while the other is fully retired. Costs are usually the most predictable of the five.
Part-Time Work (Barista FIRE)
Named for the Starbucks barista job that comes with health benefits at surprisingly modest hours. You trade some retirement flexibility for employer-subsidized coverage.
Health Sharing Ministries
Members pool money to pay each other’s medical bills. Cheaper on paper, but these are not insurance — they can and do deny claims, and pre-existing conditions are typically excluded entirely.
How the ACA Marketplace actually works
You buy coverage through healthcare.gov (or your state’s exchange), pay a monthly premium, and may receive Premium Tax Credits — subsidies — based on your household income. The plans themselves come in three main tiers: Bronze (lowest premium, highest deductible), Silver (mid-range, and the only tier that qualifies for extra Cost Sharing Reductions), and Gold (higher premium, lower deductible). For most early retirees managing income carefully, Silver is usually the sweet spot.
Subsidies are based on income, not assets or net worth. Someone with $2M invested but $40k in MAGI for the year can qualify for a substantial subsidy — which is exactly why how you draw down your portfolio matters as much as how big it is.
Open enrollment runs November 1 through January 15 each year, with December 15 as the cutoff to have coverage start January 1. Retiring mid-year doesn’t leave you stuck waiting, though — leaving a job is a qualifying life event that triggers its own 60-day Special Enrollment Period.
The enhanced subsidies from the American Rescue Plan expired at the end of 2025. That means the 400% FPL subsidy cliff is back for 2026 coverage, and the income share you’re expected to contribute toward premiums is higher across the board than it was from 2021–2025. Congress could still act on an extension — a House bill for a multi-year extension was introduced in early 2026 — so always check healthcare.gov for the current-year rules before making decisions.
The ACA subsidy cliff
Below 400% of the Federal Poverty Level (FPL), you receive subsidies. Go $1 over, and you lose all of them — not a gradual reduction. A cliff.
Illustrative monthly premium for a benchmark Silver plan, couple in their 50s. The jump between ~400% FPL and 401% FPL isn’t a rounding error — it’s the entire subsidy disappearing at once.
The stakes are real money, not an abstraction: the difference between a subsidized and unsubsidized Silver plan for a couple in their 50s can run $15,000–$22,000 a year, depending on age, state, and plan. These are illustrative figures — get your exact quote at healthcare.gov for your ZIP code and household.
2026 estimates based on the 2025 federal poverty guidelines (the year ACA eligibility for 2026 coverage is actually calculated from) for the 48 contiguous states. Alaska’s guidelines run about 25% higher and Hawaii’s about 15% higher — always confirm your exact threshold at healthcare.gov, since FPL updates every year.
Source: HealthCare.gov — Premium Tax Credit eligibility (100–400% FPL)
One dollar can cost you thousands.
A household sitting at 399% of FPL qualifies for a meaningful subsidy. One additional dollar of MAGI — a bonus, an extra capital gain, a Roth conversion sized slightly too large — can eliminate that subsidy completely for the entire year. There’s no partial credit for being close.
What counts as MAGI
The most common planning mistake is not knowing which income the ACA actually counts. Modified Adjusted Gross Income (MAGI) is broader than take-home pay.
| Income type | Counts toward MAGI? | Notes |
|---|---|---|
| Traditional IRA / 401(k) withdrawals | Counts in full | Every dollar withdrawn adds to MAGI |
| Roth IRA withdrawals (contributions) | Excluded | Contribution withdrawals are tax-free and excluded |
| Roth conversions | Counts in full | Converting $20k in one year adds $20k to MAGI |
| Capital gains (realized) | Counts in full | Selling investments with gains increases MAGI |
| Dividends | Counts | Both qualified and ordinary dividends count |
| Social Security benefits | 100% counts | Only 85% is taxable for income tax — ACA counts 100% |
| Interest income | Counts | HYSA interest, bond interest, etc. |
| Roth IRA earnings (after 59½, qualified) | Excluded | Tax-free and excluded from MAGI |
| HSA withdrawals for medical expenses | Excluded | Tax-free and excluded from MAGI |
| Part-time / freelance earned income | Counts | Even modest earnings count toward MAGI |
| Business profit (net, after expenses) | Counts in full | The 20% QBI deduction lowers your tax bill but not your MAGI |
The planning insight: the income sources you draw from in early retirement directly determine your healthcare costs. This is exactly why holding a mix of account types — Traditional, Roth, and taxable brokerage — gives you the most flexibility to manage MAGI on purpose, rather than discovering your number after the fact.
Staying under the cliff on purpose
The actionable part: how to engineer your income so the cliff never finds you.
Draw from taxable brokerage accounts first
Realized long-term gains get taxed at 0% for taxable income under roughly $98,900 (married, 2026) — and don’t hit MAGI as hard as an equivalent pre-tax withdrawal would.
Withdraw Roth contributions freely
Direct contributions to a Roth IRA can always be withdrawn tax-free, and they do not count toward MAGI at all.
Manage Roth conversion amounts carefully
Every dollar converted adds to MAGI for that year. Convert in tranches sized to stay below the cliff, not all at once — a Roth Conversion Ladder is the structured version of this idea.
Keep a 1–2 year cash buffer
Avoids forced withdrawals in a year when your income is already sitting close to the cliff.
Time capital gain realizations
If you need to sell appreciated assets, consider spreading the sale across multiple years to avoid one single large MAGI spike.
Use HSA contributions to reduce MAGI
If you’re still enrolled in an HDHP, HSA contributions are deductible and lower your MAGI for the year — more on this below.
The interaction between Roth conversions and ACA subsidies is one of the most consequential — and easiest to get wrong — financial decisions in early retirement. A $5,000 additional conversion could cost $15,000+ in lost subsidies. For many early retirees, this is exactly the kind of multi-variable decision worth modeling with a fee-only CFP who specializes in early retirement, rather than guessing.
A deeper look at sequencing withdrawals across account types — Traditional, Roth, and taxable, in what order and why — is a topic for a future guide on withdrawal strategies.
The HSA triple tax advantage
One of the most powerful — and most underused — tools in early retirement healthcare planning.
Deductible Going In
Contributions reduce your taxable income and your MAGI for the year.
Tax-Free Growth
Invest the balance and it compounds without any tax drag along the way.
Tax-Free Out
Withdrawals for qualified medical expenses are never taxed — at any age.
You must be enrolled in a High Deductible Health Plan (HDHP) to contribute — and an HDHP bought on the ACA Marketplace still qualifies, which is how many early retirees combine marketplace coverage with ongoing HSA building.
The receipt harvesting strategy: pay current medical expenses out of pocket, save every receipt, and reimburse yourself from the HSA years — even decades — later, whenever you actually need the tax-free cash. There’s no time limit on reimbursement, which effectively turns an HSA into a stealth tax-free brokerage account for anyone disciplined enough to keep records.
After age 65, an HSA functions like a Traditional IRA for non-medical withdrawals — taxable, but no penalty. For medical expenses, it stays completely tax-free for life.
You cannot contribute to an HSA once enrolled in Medicare Part A. Because Part A enrollment can be retroactive by up to 6 months, stop HSA contributions at least 6 months before you plan to enroll — otherwise you risk an excess-contribution penalty on months you didn’t realize counted.
COBRA and the 59-day bridge
Most people think of COBRA as just expensive insurance you take when you leave a job. There’s a smarter way to use 59 of your 60 days before deciding.
COBRA lets you keep your exact employer plan — same network, same doctors — for up to 18 months after leaving a job. You pay the full premium plus a 2% administrative fee, often $600–$2,000+ a month for a family. That's expensive — but COBRA has a quirk most people never use.
You leave your job. Your employer coverage ends, but you have 60 days to decide whether to elect COBRA.
You wait, uninsured on paper. If nothing happens, you enroll directly in an ACA Marketplace plan instead — leaving a job is its own qualifying life event with a 60-day Special Enrollment window.
COBRA is retroactive to your last day of employer coverage. Elect it any time in the 60-day window and you’re covered from day one — you just pay the back premiums.
The strategic approach: wait, and let your health situation — not a default reflex — inform the decision. If you stay healthy through the window, skip COBRA and go straight to the Marketplace. If something happens, retroactively elect COBRA and you were covered the whole time.
With enhanced ACA subsidies gone, Marketplace coverage may now be competitive with — or cheaper than — COBRA even within the first 18 months. Compare both real quotes before deciding, don’t assume COBRA is either the expensive or the safe default.
Where do you actually sit relative to the cliff?
ACA Subsidy Calculator
Enter your household size, state, and projected MAGI to see your estimated subsidy, your net premium for a benchmark Silver plan, and — critically — how much Roth conversion or capital gains headroom you have before hitting the cliff.
Open the ACA Subsidy Calculator →Common mistakes
The most expensive early retirement healthcare errors, and how to avoid each one.
Forgetting Roth conversions count as MAGI
The single most common error. Planning to convert $50k in year one of retirement could eliminate your entire ACA subsidy.
Underestimating out-of-pocket costs
Premiums are just part of it. Deductibles, copays, and surprises can add $3,000–$10,000/year on top.
Assuming enhanced subsidies still apply
The American Rescue Plan subsidies expired at the end of 2025. Any plan built on 2021–2025 subsidy levels needs a fresh look.
The IRMAA trap
A large Roth conversion at 63 can trigger Medicare premium surcharges at 65, thanks to a 2-year lookback. Decisions now affect Medicare costs later — a topic a future tax-strategy guide will cover in depth.
Not timing the COBRA election strategically
Most people decide within days of leaving a job. The 59-day window exists for a reason — use it.
Health sharing for pre-existing conditions
These are not insurance. They can and do deny claims for pre-existing conditions. ACA Marketplace is the only reliable option if you have ongoing medical needs.
What actually belongs in your healthcare budget
Most FIRE plans undercount this. Premiums are only one line item.
▸Sources & Methodology
- COBRA’s 60-day election window and retroactive coverage: CMS — COBRA Continuation Coverage Q&A
- Medicare IRMAA’s 2-year lookback: Social Security Administration — Medicare IRMAA
- 2026 0% long-term capital gains threshold ($98,900 married): IRS Revenue Procedure 2025-32
- 2026 HSA contribution limits ($4,400/$8,750): IRS Revenue Procedure 2025-19, via OneDigital’s summary
- 2026 ACA out-of-pocket maximums ($10,600/$21,200): HHS final rule summary