Retiring Before 65? One Number on Your Tax Return Decides What Health Insurance in Retirement Costs You
- Joe Boughan
- 3 days ago
- 6 min read
Updated: 2 days ago
The difference between retiring at 61 and grinding it out until Medicare at 65 can come down to a single number on your tax return. Get that number wrong, and health insurance before Medicare can cost you up to $24,000 a year more than it has to. Get it right, and the bridge to 65 is a lot shorter than you think.
I'm Joe Boughan, a CERTIFIED FINANCIAL PLANNER® here in Scituate, and I see this constantly with near-retirees across the many public biotechnology and technology firms in the area: people who could retire comfortably today staying at jobs they're done with because of a healthcare number they never actually planned around.
They're not being irrational. The Employee Benefit Research Institute's research on retirement worries puts healthcare costs near the top of the list — right behind running out of money, ahead of inflation and everything else. But here's my core message: for people with meaningful retirement savings, health insurance before 65 usually isn't a wall. It's a planning challenge. And planning challenges have solutions.
Why Health Insurance Before Medicare Looks So Scary
While you're working, your employer quietly picks up 60–80% of your premium. The day you retire, that subsidy vanishes.
COBRA lets you keep your exact coverage — same network, same doctors — but now you're paying full freight. For a couple, that's often $1,800–$2,200 a month, and it generally runs out after 18 months.
After COBRA, most early retirees land on the ACA marketplace. If you've never priced it, brace yourself: a silver plan for a married couple around age 60 runs roughly $2,700 a month in 2026. That's about $32,000 a year.
For a lot of people, that number ends the retirement conversation before it starts. But that $32,000 assumes you have zero control over the income showing up on your tax return. You have far more control than you think.
The One Number That Matters: Your MAGI
The ACA marketplace doesn't care about your net worth. It doesn't care about your account balances or how much you spend. Whether you qualify for premium subsidies comes down to one variable: your modified adjusted gross income (MAGI).
What Counts Toward MAGI
Withdrawals from traditional IRAs and 401(k)s
Capital gains — short-term and long-term
Taxable dividends
Wages, including part-time work
The taxable portion of Social Security
Roth conversions (the conversion itself is income)
Pension income
Rental income
Interest from savings accounts, CDs, and money markets
What Doesn't Count
Withdrawals from your Roth IRA
Spending down cash savings
Return of your own basis from a taxable brokerage account — money you originally put in, coming back out
HSA withdrawals used for qualified medical expenses
The Traps People Miss
Three things quietly inflate MAGI even when you never touch the money:
Reinvested dividends and fund distributions. If your brokerage account auto-reinvests, those distributions still hit your tax return as income.
Savings account interest. Taxable the year it's credited, even if it just sits there.
Rental income. If the numbers come out positive, it counts — even if every dollar went back into the property.
The key insight: how much you spend and how much taxable income you show are two completely different numbers. You can spend $120,000 in a year and show $75,000 of MAGI. Some people call it "looking poor on paper." I call it withdrawal sequencing — and it only works if you structure it deliberately.
The 2026 ACA Subsidy Cliff: A Light Switch, Not a Dimmer
Here's why this matters more right now than it has in years. From 2021 through 2025, enhanced subsidies smoothed out the income limits. Those enhancements expired at the end of 2025, and as of January 1, 2026, the subsidy cliff is back.
For a married couple in 2026, the cliff sits around $84,600 of MAGI. For a single filer, it's about $62,600. Stay $1 under, and you qualify for subsidies. Go $1 over, and you get nothing. It's a light switch, not a dimmer.
The dollars are dramatic. Below the cliff, that $2,700/month silver plan can drop to roughly $400 a month. Cross the line by a dollar, and you could pay up to $24,000 a year more for the exact same coverage. Retire at 60 and manage this badly for five years, and you're looking at a six-figure difference.
And this isn't theoretical — KFF's analysis of 2026 enrollment found that people with incomes just above the cliff made up only about 3% of 2025 marketplace sign-ups but accounted for 27% of the drop in enrollment this year. The cliff is hitting real households, hard.
Spend $120,000, Show $75,000: A Worked Example
Say you're 61, married, and want to spend $10,000 a month — $120,000 a year. On the surface, that blows past the $84,600 cliff. But watch what happens when we choose where the spending comes from:
Source | Amount | Counts toward MAGI? |
Traditional IRA withdrawal | $55,000 | Yes |
Long-term capital gains (brokerage sales) | $20,000 | Yes |
Roth IRA withdrawal | $20,000 | No |
Cash savings | $15,000 | No |
Return of basis from brokerage sales | $10,000 | No |
Total spending | $120,000 | MAGI: $75,000 |
Total spending: $120,000. Total MAGI: $75,000. Cliff: $84,600. You're under it — with room to spare — and that $32,000-a-year silver plan becomes roughly $5,000 a year.
Two things worth noting. First, we normally don't want to tap Roth accounts early — but the subsidy makes this one of the rare exceptions where it can pay off. Second, this is a sequencing game played year by year. The mix that works at 61 probably isn't the mix that works at 63, once you layer in Roth conversion windows, future required minimum distributions, and Social Security timing. This is where a real retirement withdrawal strategy earns its keep — I wrote more about that in [The Missing Piece in Retirement Planning May Be How You Withdraw Your Money].
And to be clear: this isn't a loophole. The ACA subsidy system was explicitly designed so that income, not wealth, determines your premium. A retiree who structures withdrawals thoughtfully is using the system exactly as intended.
Who This Planning Matters For Most
If you've got $5 million and spend $250,000 a year, an extra $24,000 in premiums is annoying, not threatening — though it's still worth a look.
The person this really matters for has roughly $1.5–2 million saved and spends $85,000–$100,000 a year. That household is getting pushed just over the cliff and paying an extra 25–35% of their entire annual budget in healthcare premiums. It's also the household with the most ability to fix it — and, in many cases, to retire sooner than they thought possible.
When COBRA Actually Makes Sense
Most people write COBRA off as too expensive. Usually they're right. But there are three scenarios where it earns its cost:
You're within 18 months of Medicare. COBRA can bridge you all the way to 65 with zero disruption — no new networks, no switching plans twice in a short window.
You're mid-treatment or you've already hit your deductible. Switching to a cheaper premium mid-year can cost more in total once you reset a deductible you'd already satisfied.
You're retiring partway through the year. Wages from January through your retirement date count toward your annual MAGI, which can disqualify you from subsidies for that first calendar year. In that case, COBRA and full-price marketplace coverage often cost about the same — and COBRA keeps your existing plan.
The point isn't that COBRA is good or bad. It's that the choice should come out of a plan, not a guess.
The Healthcare Planning Gap
A client — I'll call him Ray — came to me at 60, a civil engineer convinced healthcare would cost him $28,000 a year. He'd spent three weeks on comparison sites and scared himself into another year at a job he was finished with.
When we modeled his actual retirement MAGI — drawing from taxable accounts, keeping his income structure below the threshold — his projected marketplace premium came in under $7,000 a year. He retired four months later.
That's what I call the healthcare planning gap: the near-total separation between retirement income planning and healthcare strategy. It keeps people in jobs years longer than necessary, spending down some of their youngest, healthiest retirement years at a desk.
One caveat: these rules are fluid. The math here should hold for 2026 and 2027, but Congress is actively debating subsidy changes, so this is a strategy you revisit every year — not one you set once.
Thinking About Retiring Before 65?
The years between your retirement date and Medicare aren't a liability waiting to happen. They're a planning window.
I've walked through a base case here. Your actual situation layers in tax brackets, Roth conversion opportunities, account mix, and risk — and there's no universal answer. At a big-box firm, you'll often get generic advice on this. As a fee-only, fiduciary CFP® and RICP® (and NAPFA member), I do this kind of tax-aware retirement income planning for near-retirees across Scituate, the South Shore, and Greater Boston every day.
If this resonates, [schedule a free consultation] — or start with our short questionnaire and I'll send you a free five-minute mini review of where I see opportunities in your situation. No pressure, no sales pitch. Just a clearer picture of whether the bridge to Medicare is shorter than you think.
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