Retiring at 62 With $2.6 Million Means Quietly Funding $24,000 of Adult-Son Health Insurance Until He Hits 26

You spent decades saving to walk away from work. You hit the number: $2.6 million across retirement accounts and a brokerage account, a paid-off house, and a spouse on board with retiring at 62. Then your planner’s projections highlighted a cost you had not fully considered: whether to keep your 22-year-old son on your health insurance plan until he turns 26.

This is not a case of an adult child depending on his parents for everyday support. He graduated from college, lives in his own apartment in Arlington, Virginia, supports himself through freelance work, and makes his own student loan payments. The problem is that he does not have access to employer-sponsored health insurance and earns too much to qualify for Affordable Care Act premium subsidies.

If he purchased his own reasonably comprehensive marketplace plan, he could easily pay around $850 per month in premiums, or roughly $40,800 over the next four years. By keeping him on the family plan until age 26, his parents can help him avoid much of that expense. The tradeoff is that their own marketplace premiums increase by about $500 per month, creating an additional cost of roughly $24,000 over those same four years.

For a household with $2.6 million saved for retirement, that extra $24,000 is not a crisis. But it is a real spending decision that affects withdrawal rates, tax planning, and the years between early retirement and Medicare eligibility.

The setup most early retirees recognize

Reddit’s r/financialindependence and r/FIRE forums are full of posts wrestling with this exact problem. One thread on ACA pricing in early retirement put it bluntly: “the 400% FPL cliff is a big deal, income management matters a lot more at 64 than at 45.” The wrinkle here is that the cliff returned in 2026 after the enhanced premium tax credits expired, so households above that income threshold get no subsidy at all.

Here is the situation in five lines:

• Ages: 62 and 62, with a 22-year-old son still on the family plan
• Portfolio: $2.6 million, mostly tax-deferred, some Roth, a taxable brokerage
• Core issue: Four years of marketplace coverage before the son turns 26 and three years after that before Medicare
• Hidden cost: Roughly $500 a month, or $6,000 a year, in premium delta for keeping the son on the plan
• What is at stake: About $24,000 across four years with the potential for significantly higher costs if poor income management triggers the loss of the couple’s own ACA subsidies

Why income management Still Matters

The direct cost of keeping the son on the family plan is relatively straightforward: roughly $500 per month, or about $24,000 over four years. The more complicated issue is managing modified adjusted gross income (MAGI) during the years before Medicare.

Family-of-three marketplace coverage for a couple in their early 60s generally costs more than couple-only coverage, but the premium difference itself is not what keeps planners awake at night. The larger concern is preserving any premium tax credits for which the household may qualify.

A large Roth conversion, substantial capital gain, or oversized IRA withdrawal can increase MAGI enough to reduce or eliminate those subsidies. In some cases, the resulting increase in premiums can outweigh the future tax savings the transaction was intended to create.

The good news is that retirees often have more control over their taxable income than working households. By carefully balancing withdrawals from taxable, tax-deferred, and Roth accounts, many retirees can manage cash flow while avoiding unnecessary increases in MAGI. For households navigating the years between retirement and Medicare, that flexibility can be just as valuable as investment returns themselves.

Three paths that actually move the needle

Most planners default to maximizing Roth conversions immediately after retirement. For a household navigating the years before Medicare, the better approach is often more nuanced.

1. Treat the bridge years strategically. If marketplace subsidies are part of your plan, consider living primarily from taxable accounts, where only the gain portion of each sale counts toward modified adjusted gross income (MAGI). Preserving flexibility now may create more opportunities for larger Roth conversions later.
2. Use an HDHP plus HSA. HSA contributions reduce taxable income and remain one of the few above-the-line deductions available to many retirees. If the family’s expected healthcare usage is relatively low, the lower premiums can offset the higher deductible.
3. Consider a cost-sharing arrangement. A standalone marketplace policy could cost the son roughly $850 per month, while keeping him on the family plan increases the parents’ premiums by about $500 per month. If the son reimburses the parents for the additional premium cost, he saves $16,800 over four years while costing the parents nothing. In many families, this middle-ground solution delivers the best outcome for everyone involved.

What to do this month

Build a four-year tax and healthcare plan before making any major Roth conversions. With the 10-year Treasury yielding around 4.5% and money market funds paying roughly 3.5% to 4%, keeping one to two years of spending needs in cash and short-term Treasuries can reduce the risk of being forced to sell stocks during a market downturn.

Just as important, model how withdrawals, capital gains, and Roth conversions will affect your healthcare costs during the years before Medicare. Retirees often focus on minimizing taxes while overlooking how income decisions can affect insurance premiums and subsidy eligibility. A large Roth conversion that looks smart in isolation can produce unexpected costs elsewhere in the plan.

If most of your portfolio sits in traditional tax-deferred accounts and you expect required minimum distributions to push you into a higher tax bracket later in retirement, a multi-year projection is essential. A fee-only advisor or CPA can help coordinate withdrawals, conversions, and healthcare planning so that one decision does not unintentionally create costs somewhere else in the retirement plan.