Early retirement before age 65 opens a coverage gap that can last months or years. Medicare eligibility does not begin until age 65 for most people, which means every year you retire before then is a year you must find private coverage. For 2026, three realistic pathways exist: the ACA Marketplace with income-based premium tax credits, COBRA continuation of your former employer's plan, or enrollment on a still-working spouse's plan. The right choice depends on how much retirement income you will report on your 2026 tax return, which providers you need to keep, and how far you are from turning 65. Most early retirees are pleasantly surprised by the ACA Marketplace math. Lower retirement income, particularly if you have not started drawing Social Security or large 401(k) distributions yet, puts many households below 400% of the Federal Poverty Level, which was $63,840 for a single person in 2026. Below that threshold, premium tax credits phase in aggressively under the 2026 rules. The 400% FPL subsidy cliff returned for 2026 after enhanced premium tax credits from the American Rescue Plan and Inflation Reduction Act expired January 1, 2026, so accurate income projection matters more than it did during 2022 to 2025.
Bridging to Medicare with ACA coverage is a common strategy for early retirees, but it requires careful income management. The ACA Marketplace uses your projected Modified Adjusted Gross Income (MAGI) for the coverage year, not your prior-year income. Every dollar of 401(k) or IRA withdrawal you take in 2026 counts toward your MAGI and can shift you into a higher subsidy tier or above the 400% FPL cliff entirely. Early retirees who can live on savings without large retirement account distributions are often in the best position to access generous subsidies. Those who need heavy withdrawals may do better with COBRA in the short term or with careful Roth conversion planning. Regardless of which path you choose, the 60-day window from your last day of employer coverage is non-negotiable under ACA Special Enrollment Period rules. Missing it means going without insurance until November's Open Enrollment, which for an early retiree in their 50s or early 60s carries substantial financial and medical risk. Check whether you qualify for Medicaid income limits first, especially in the 40 expansion states plus DC, where the threshold is 138% FPL.
7 Steps to Get Coverage
Common Mistakes That Cost People Thousands
The most expensive mistakes early retirees make when bridging to Medicare:
- Defaulting to COBRA without checking Marketplace subsidies first. COBRA charges 102% of the full premium. Many early retirees qualify for Marketplace plans at 10% to 30% of the COBRA cost after premium tax credits based on lower retirement income.
- Using prior-year income to estimate subsidies. The ACA Marketplace calculates subsidies based on projected current-year MAGI, not last year's salary. Retiring mid-year often means much lower income for the rest of 2026.
- Forgetting that 401(k) and IRA withdrawals count as MAGI. Every dollar of traditional retirement account withdrawal adds to your MAGI and can push you above the 400% FPL subsidy cliff, costing thousands in lost premium tax credits for 2026.
- Continuing HSA contributions after enrolling in Medicare. Enrolling in any part of Medicare, including Part A, makes you ineligible to contribute to a Health Savings Account. Contributing after enrollment triggers an IRS penalty.
- Missing the Medicare Initial Enrollment Period when turning 65. Early retirees who were on COBRA or an ACA plan when they turned 65 sometimes assume that existing coverage excuses late Medicare enrollment. COBRA and ACA Marketplace plans do NOT count as employer coverage for the Part B delay rule, so the IEP deadline still applies.
- Not checking Medicaid eligibility in expansion states. Early retirees who have not yet started drawing Social Security or large retirement distributions sometimes have MAGI below 138% FPL, making them eligible for free Medicaid. Applying through healthcare.gov takes less than 30 minutes and is the cheapest option by far.
How 401(k) and IRA Withdrawals Affect Your 2026 ACA Subsidies
401(k) and traditional IRA distributions are counted as ordinary income and flow directly into your Modified Adjusted Gross Income (MAGI) for ACA premium tax credit purposes. For 2026, the subsidy cliff is at 400% FPL ($63,840 for a single person; $86,400 for a two-person household in the 48 contiguous states and DC). Every dollar of withdrawal above that threshold eliminates your premium tax credit entirely, not just partially. An early retiree who projects $62,000 in income from a pension and Social Security might receive $3,000 to $6,000 in annual premium tax credits. Adding a single $5,000 IRA distribution to cover an unexpected expense pushes total MAGI to $67,000, potentially wiping out the entire credit and increasing their annual health insurance cost by thousands.
Roth IRA and Roth 401(k) distributions are NOT counted as MAGI because they represent after-tax contributions. Early retirees with substantial Roth savings have a significant advantage: they can supplement income from Roth accounts without pushing MAGI above the 400% FPL cliff. The optimal strategy for most early retirees who are managing the ACA subsidy window before Medicare is to draw from Roth accounts for living expenses, limit traditional account distributions to what is necessary, and model the full-year MAGI impact on a tax planning spreadsheet or with a financial advisor before making any lump distributions. The Affordable Care Act income limits page provides the exact thresholds for 2026 at each percentage level from 100% to 400% FPL.
Medicaid Eligibility for Early Retirees: State Expansion Rules and Brand Names
Medicaid is available year-round with no SEP deadline, and early retirees whose projected 2026 MAGI falls below 138% FPL qualify in the 40 expansion states plus DC. For a single early retiree, that threshold is $22,025 in 2026; for a couple, $29,820. State Medicaid programs have different brand names you should recognize: California's program is Medi-Cal, Arizona's is AHCCCS (the Arizona Health Care Cost Containment System), Oregon's is Oregon Health Plan (OHP), Massachusetts' is MassHealth, and Wisconsin's is BadgerCare. In Connecticut, the program is HUSKY Health. Early retirees who have not yet claimed Social Security and are living on savings may find their MAGI is lower than expected, particularly in the early years of retirement before required minimum distributions begin at age 73.
The 10 non-expansion states as of 2026 are Alabama, Florida, Georgia, Kansas, Mississippi, South Carolina, Tennessee, Texas, Wisconsin (for adults; BadgerCare covers some groups), and Wyoming. Non-disabled adults in these states typically do not qualify for Medicaid regardless of income level. An early retiree in a non-expansion state with low retirement income who falls below 100% FPL faces a coverage gap: they do not qualify for Medicaid but also cannot receive ACA Marketplace premium tax credits because those credits start at 100% FPL. Early retirees in non-expansion states who find themselves in this position should apply at healthcare.gov anyway, as the application process will route them to any available assistance and confirm eligibility for low-cost or zero-premium Bronze plans that may still be available above 100% FPL.
Timing Your Medicare Transition: The Bridge Coverage Checklist
Medicare eligibility begins the first day of the month you turn 65, but the Initial Enrollment Period (IEP) opens 3 months before that birthday month. Early retirees who retired at 60, 62, or 63 may have 2 to 5 years of bridge coverage to arrange. Each year, the ACA Open Enrollment Period runs from November 1 through January 15 for the following year's coverage. Early retirees who enrolled in a Marketplace plan mid-year via the 60-day SEP can renew or change plans each November during Open Enrollment. In the final year before Medicare eligibility, plan your enrollment at SSA.gov before the end of the 3-month pre-birthday window so coverage starts exactly on your birthday month with no gap.
HSA contribution timing is the single most overlooked detail in the Medicare transition. Stop contributing to a Health Savings Account in the month you enroll in any part of Medicare. The IRS considers Medicare enrollment retroactive to the beginning of the month you enrolled, so partial-month HSA contributions in the enrollment month also trigger a penalty. If you contributed to an HSA during 2026 and enroll in Medicare partway through the year, use IRS Form 8889 to calculate the allowable contribution for the months before Medicare began. Early retirees who hold a high-deductible health plan (HDHP) through an ACA Marketplace plan can continue contributing to an HSA through the day before Medicare starts, as long as the HDHP meets the 2026 minimum deductible threshold of $1,700 for self-only coverage.
Documents Needed for the Early Retirement SEP Application
Marketplace Special Enrollment Period applications require documentation of the qualifying event within 30 days of enrollment for loss-of-coverage events. Your employer must provide a letter, COBRA election notice, or HIPAA certificate of creditable coverage showing the exact coverage end date. This document is what healthcare.gov uses to verify the qualifying life event (QLE) and lock in your SEP window. Without it, the SEP can be denied and you may have to appeal with additional documentation. Request this letter from HR on or before your last day. Social Security numbers for everyone enrolling, a current mailing address, and pay documentation showing projected 2026 income complete the application requirements.
Frequently Asked Questions
How long do I have to enroll in health coverage after retiring before 65?
You have 60 days from your last day of employer-sponsored coverage to enroll in an ACA Marketplace plan under the Loss-of-Coverage Special Enrollment Period (SEP). The 60-day window starts the day after your coverage ends. For example, if your coverage ends on July 31, 2026, your SEP window runs August 1 through September 29, 2026. Medicaid enrollment is open year-round with no deadline. COBRA also has a 60-day election window, but that runs parallel to the Marketplace SEP.
Can I get ACA subsidies after early retirement?
Yes, if your projected 2026 Modified Adjusted Gross Income (MAGI) falls between 100% and 400% of the Federal Poverty Level. For 2026, that range is $15,960 to $63,840 for a single person and $21,600 to $86,400 for a two-person household. The 400% FPL subsidy cliff returned for 2026 after enhanced premium tax credits from the IRA expired January 1, 2026. Early retirees whose income is in this range often pay $50 to $400 per month for a Silver Marketplace plan after credits. Apply through healthcare.gov and enter your projected MAGI, including any 401(k) or IRA distributions you plan to take.
Does COBRA count as creditable coverage for Medicare Part B?
No. COBRA is considered a private continuation of a prior employer plan, not active group coverage from a current employer. This is one of the most dangerous misconceptions for early retirees. You cannot delay Medicare Part B enrollment citing COBRA as your primary coverage. If you are on COBRA when you turn 65, you must still enroll in Medicare Part B during your 7-month Initial Enrollment Period to avoid the 10% per year lifetime late penalty. The only coverage that qualifies for a penalty-free Part B delay is active group health coverage from a current employer with 20 or more employees.
What is the best health insurance for early retirees in 2026?
For most early retirees in 2026, the answer depends on projected income. Early retirees with MAGI under 138% FPL should apply for Medicaid (free, year-round). Those with MAGI between 100% and 400% FPL will find ACA Marketplace plans with subsidies are typically much cheaper than COBRA. Those with income above 400% FPL ($63,840 single) with an employed spouse should compare employer plan costs against unsubsidized Marketplace premiums. COBRA is generally the most expensive choice and is only worth it if you have ongoing treatment with a specialist who is not in any Marketplace network or if you have a nearly met deductible for the calendar year.
Do 401(k) withdrawals affect my ACA health insurance subsidies?
Yes. Traditional 401(k) and IRA distributions count as ordinary income and are included in your MAGI for ACA premium tax credit calculations. Every additional dollar of withdrawal from a traditional retirement account can reduce your subsidy or push you above the 400% FPL cliff, eliminating premium tax credits entirely for 2026. Roth 401(k) and Roth IRA distributions are not counted as income and do not affect your MAGI. Early retirees who can draw primarily from Roth accounts in the years before Medicare can often maintain eligibility for substantial ACA subsidies.
When do I have to enroll in Medicare after early retirement?
You must enroll in Medicare during your Initial Enrollment Period (IEP), which is the 7-month window starting 3 months before the month you turn 65. Being on an ACA Marketplace plan or COBRA does not give you a Special Enrollment Period to delay Medicare enrollment without penalty. If you miss your IEP while on bridge coverage and do not have active employer coverage from a current employer with 20 or more employees, you will face the 10% per year Part B late enrollment penalty for the rest of your life. Start the SSA.gov enrollment process 3 to 4 months before your 65th birthday.
Can I keep contributing to my HSA after retiring early?
You can contribute to a Health Savings Account (HSA) as long as you are enrolled in an HSA-eligible High Deductible Health Plan (HDHP) and are not enrolled in any part of Medicare. Many ACA Marketplace plans are HDHPs that qualify for HSA contributions. The 2026 HSA contribution limit is $4,400 for self-only coverage and $8,750 for family coverage. Once you enroll in Medicare (even just Part A), you must stop HSA contributions. The month you enroll is treated as month one of Medicare, and any contribution made after that point triggers an IRS penalty.
What if I retire in a state without Medicaid expansion?
Ten states had not expanded Medicaid as of 2026: Alabama, Florida, Georgia, Kansas, Mississippi, South Carolina, Tennessee, Texas, Wisconsin (for adults), and Wyoming. Early retirees in these states with very low income (below 100% FPL) may fall into the coverage gap where they earn too little for ACA premium tax credits but do not qualify for traditional Medicaid. If your income is above 100% FPL in a non-expansion state, ACA Marketplace plans with premium tax credits are available. If you are below 100% FPL in a non-expansion state, apply at healthcare.gov regardless, as $0-premium Bronze plans may be available and the application will confirm your options.
