Health Insurance for Early Retirees: Bridging the Gap to Medicare at 65

Walking away from a job before age 65 means walking away from the employer health plan that came with it — and Medicare will not catch you until your 65th birthday. That gap can stretch anywhere from a few months to more than a decade, and in 2026 it lands in a much harsher environment than early retirees faced just a year ago. The enhanced Affordable Care Act (ACA) subsidies that made coverage affordable for higher-income households have expired, which changes the math on almost every decision you make in these bridge years.

This guide walks through the realistic paths from your last day of work to your first day of Medicare: how COBRA stacks up against a marketplace plan, why your Modified Adjusted Gross Income (MAGI) has suddenly become the most important number in your retirement plan, and how to time the switch to Medicare so you avoid lifelong penalties. None of this is personalized financial or tax advice — it is a map of the categories and trade-offs so you can ask sharper questions and confirm current figures before you commit.

Your coverage options between early retirement and 65

There is no single "early retiree plan." Instead you are choosing among several buckets, and many people use more than one in sequence:

• COBRA continuation. Federal COBRA lets you keep your former employer's exact plan, usually for 18 months after a job loss or reduction in hours, and up to 36 months for certain other qualifying events (such as divorce or a dependent aging out). A separate 11-month disability extension can stretch the 18-month window to 29 months. You typically pay the full premium plus a 2% administrative fee — the employer subsidy disappears. (Source: U.S. Department of Labor.)
• ACA marketplace plan. A guaranteed-issue individual plan bought through HealthCare.gov or your state exchange. It cannot deny you for pre-existing conditions and covers the essential health benefits. Whether you get a premium tax credit now depends entirely on your income — more on that below.
• A spouse's employer plan. If your spouse still works, joining their plan during their employer's special enrollment window is often the cheapest and simplest bridge.
• Employer reimbursement arrangements. A small business you leave (or start) might offer a QSEHRA or ICHRA that reimburses individual-market premiums. These interact with ACA subsidies, so read the coordination rules carefully.
• Short-term plans (STLDI). Cheap, but not ACA-compliant — they can deny pre-existing conditions and skip essential benefits. Treat them as a stopgap only.

The 2026 subsidy cliff is back — why MAGI is everything now

This is the single biggest change for early retirees in 2026. The enhanced premium tax credits created by the American Rescue Plan Act and extended by the Inflation Reduction Act expired on December 31, 2025, and were not extended for 2026. The pre-2021 rules — including the 400%-of-federal-poverty-level "subsidy cliff" — are back. Earn one dollar over 400% of the poverty line and your premium tax credit drops to zero. For a household of two, 400% of the federal poverty level used for 2026 coverage is roughly $84,600 (2026 coverage year); confirm the figure for your household size, because the guidelines are updated annually.

The financial impact is not theoretical. KFF estimates that subsidized enrollees' average annual payments rose about 114% — from roughly $888 to about $1,904 (2026) — once the enhanced credits lapsed. For a 60-something couple, crossing the cliff can mean paying full freight on a plan that might run well over $20,000 a year.

Congress has not settled this. As of August 2026, the House passed a three-year extension of the enhanced credits by a 230–196 vote (January 8, 2026), but the Senate has not acted, and the outcome is uncertain. Do not assume the "8.5% of income cap" or "no income limit" rules are in effect. Confirm live status at HealthCare.gov and KFF before you enroll.

Because the cliff is back, your MAGI is now a hard threshold, not a gentle slope. The good news for early retirees: unlike a wage earner, you often control your taxable income by choosing which accounts to draw from. That control is your most powerful tool.

Managing MAGI: 401(k), Roth conversions, and the levers you control

For ACA purposes, MAGI generally includes traditional 401(k) and IRA withdrawals, pensions, interest, dividends, capital gains, and most Social Security benefits. It generally excludes qualified Roth IRA distributions, Health Savings Account (HSA) withdrawals used for medical expenses, and the return of your own basis. That distinction is the whole game.

• Draw from the right buckets. Pulling $100,000 from a traditional IRA adds $100,000 to MAGI and can vaporize a subsidy; pulling the same amount from a Roth or from a taxable brokerage account (where only the gain counts) may keep you under the cliff.
• Time Roth conversions around the bridge. A Roth conversion is fully taxable in the year you do it, so a large conversion during an ACA year can push you over 400% of poverty and cost you the entire credit. A common framework: keep conversions small (or skip them) while you rely on marketplace subsidies, then convert more aggressively after 65 when Medicare — not an income-tested ACA plan — is your coverage. Watch for IRMAA (income-related Medicare surcharges) in those later years.
• Use the HSA deduction. If you hold a qualifying High-Deductible Health Plan (HDHP), an HSA contribution lowers MAGI dollar-for-dollar. For 2026, the IRS set HSA limits at $4,400 self-only / $8,750 family, plus a $1,000 catch-up at age 55+ (Rev. Proc. 2025-19). A 2026 HDHP needs a deductible of at least $1,700 self-only / $3,400 family, with an out-of-pocket max no higher than $8,500 self-only / $17,000 family. These amounts are indexed annually — confirm the current year before contributing, and note you cannot contribute to an HSA once enrolled in any part of Medicare.

COBRA vs. marketplace: running the math

COBRA keeps your familiar network and lets you finish the year without re-meeting a deductible — genuinely valuable if you are mid-treatment. But COBRA premiums are never subsidized, while a marketplace plan might be if your MAGI lands in the eligible range for 2026. Compare total expected cost, not just the premium, and re-run the numbers every open enrollment because subsidy rules and premiums move year to year.

A practical pattern: some retirees ride COBRA to finish a course of care or exhaust an already-met deductible, then switch to a subsidized marketplace plan at the next open enrollment once they have engineered their MAGI to stay under the cliff.

Timing the switch to Medicare at 65

Your Initial Enrollment Period is a seven-month window around your 65th birthday. Two timing traps catch early retirees:

• COBRA and retiree coverage do NOT let you delay Part B. Only coverage from active employment counts as creditable for Part B. If you are on COBRA at 65 and skip Part B, you can owe a lifelong 10%-per-year late penalty and be stuck without coverage until the next general enrollment. Enroll in Part B during your Initial Enrollment Period. (Source: Medicare.gov.)
• Buy Medigap while you have guaranteed-issue rights. The one-time 6-month Medigap Open Enrollment Period starts when you are 65+ and enrolled in Part B. Miss it and most states let insurers medically underwrite you — meaning they can deny you or charge more for pre-existing conditions. New York and Connecticut offer year-round guaranteed issue, and roughly 15 "birthday rule" states (including California, Oregon, and Illinois) allow limited annual switching.

On the drug side, 2026 brings a Part D out-of-pocket cap of $2,100 (not $2,000), a standard deductible of $615, and 100% plan payment once you hit the cap; the Medicare Prescription Payment Plan lets you spread that out-of-pocket cost across the year. Key Medicare calendar dates: Annual Enrollment runs October 15–December 7, and Medicare Advantage Open Enrollment runs January 1–March 31. These figures are indexed annually — confirm the current year at Medicare.gov.

How this varies by state and year

Almost every number here has a state or time dimension. Short-term plans are banned outright in New York and capped at roughly three months (with no renewals) in states such as New Mexico, Delaware, Maryland, and Oregon; a 2024 federal rule limits new STLDI plans to a 3-month initial term and 4-month total, though regulators announced in August 2025 that they would not prioritize enforcement, so real-world durations vary. Medigap underwriting rules differ dramatically by state, as noted above. And the federal poverty guidelines, HSA limits, Part D thresholds, and — critically — the fate of the enhanced ACA credits all reset year to year. Whatever you read here, verify the live figure with your state insurance department, HealthCare.gov, and KFF before you enroll.

Who should NOT choose this

Managing MAGI to chase a subsidy is not right for everyone. If you need a large 401(k) withdrawal or Roth conversion this year for cash-flow or long-term tax reasons, artificially suppressing income just to stay under the cliff can cost you more in future taxes than the subsidy is worth — run both scenarios. If you are already very close to 65 with a short gap, COBRA's simplicity may beat the churn of switching plans twice. If you or a spouse still has access to affordable active-employment coverage, that almost always wins. And if you have a complex tax picture, do not DIY this — a Roth conversion mistake can silently erase thousands in credits. This article is educational only; consult a licensed tax professional or a health-insurance broker, and confirm every 2026 figure against the official sources before you act.

Disclaimer: This article is for general educational purposes only and is not tax, legal, financial, or insurance advice. Dollar figures are for the years noted and are indexed or subject to change; confirm current amounts and rules with official sources and a licensed professional before making decisions.