A colleague of mine retired last year at 62. He had saved diligently for 30 years, maxed out his 401(k), and accumulated what looked like a comfortable nest egg — just over $800,000. He figured he was set. Within six months, he returned to work part-time because the math did not work as he expected.
His problem was not that he had saved too little. It was that he had a gap — a three-year window between his retirement and Medicare kicking in at 65. Health insurance on the open market for him and his wife costs $2,100 a month. That single expense, one he had never seriously planned for, was draining his savings at a rate that made the next 25 years look very different.
The retirement gap — the period between when you stop working and when government benefits like Medicare and full Social Security begin — is one of the most underplanned aspects of retirement in America, right alongside long-term care planning. And for people who retire before 65, it can turn a solid plan into a stressful scramble.
What the Gap Actually Looks Like
Most retirement planning advice focuses on a single question: do you have enough saved? The rule of thumb is that you need 25 times your annual expenses, so if you spend $60,000 a year, you need $1.5 million — but as this analysis of why you need a flexible withdrawal strategy for 2026 explains, rigid rules can backfire. Hit the number, retire, live happily.
What that calculation misses is that your expenses in early retirement are not the same as your expenses at 67 or 70. Before Medicare begins at 65, you are responsible for your own health insurance. Before you can claim full Social Security benefits — currently age 67 for most people — you either go without that income or claim early at a reduced rate.
For someone retiring at 60, that gap stretches seven years for full Social Security and five years for Medicare. During those years, you are covering all expenses from savings while also paying for health insurance, which is typically the largest line item after housing.
The numbers add up fast. Health insurance at $1,500 to $2,500 per month for a couple, plus living expenses and taxes on retirement account withdrawals, can easily require $80,000 to $100,000 per year from savings. Over a five-year gap, that is $400,000 to $500,000 — a substantial portion of most people’s nest eggs, spent before the safety net programs even begin.
The Healthcare Cliff
Healthcare is the single biggest financial risk in the retirement gap. Employer-sponsored insurance typically ends when you leave your job, and COBRA coverage — which lets you continue your employer plan — lasts only 18 months and is expensive because you pay the full premium plus an administrative fee.
After COBRA, your options are the Affordable Care Act marketplace or private insurance. Marketplace premiums depend on income, which creates a tricky optimization problem for early retirees. If you withdraw too much from retirement accounts, your income rises, and your premium subsidies shrink. If you withdraw too little, you may not cover your expenses.
I have watched friends navigate this, and it is stressful. One couple found that withdrawing an additional $10,000 from their IRA pushed them past a subsidy cliff and increased their annual insurance cost by $8,000. They effectively lost 80 cents of every additional dollar they withdrew. Understanding these thresholds before retirement is critical.
The key is to plan your withdrawal strategy around ACA subsidy brackets. For 2026, keeping your modified adjusted gross income below certain thresholds can save you thousands in premium costs. A fee-only financial planner who specializes in retirement can help you model these scenarios precisely.
The Social Security Timing Decision
You can claim Social Security as early as 62, but doing so permanently reduces your monthly benefit by up to 30 percent compared to waiting until your full retirement age. Every year you delay past full retirement age up to 70, your benefit grows by about eight percent.
For someone whose full retirement benefit at 67 is $2,500 a month, claiming at 62 drops it to about $1,750. Waiting until 70 increases it to about $3,100. Over a 20-year retirement, the difference between claiming at 62 and waiting until 70 is roughly $324,000 in total benefits.
The decision is not straightforward because it depends on your health, your other income sources, and your spending needs during the gap years. If you have enough savings to cover expenses without Social Security for a few extra years, delaying usually pays off significantly. If you need the income to avoid draining savings too quickly, claiming earlier might be the practical choice.
What I see too often is people claiming early by default without running the numbers. They think of Social Security as “free money” they should grab as soon as possible, without recognizing that the delayed credits represent one of the best guaranteed returns available anywhere. Understanding your Social Security options fully before making an irreversible decision is worth whatever time it takes.
Building a Bridge Fund
The most effective strategy I have seen for managing the retirement gap is what financial planners call a bridge fund — savings specifically designated to cover expenses between retirement and the start of government benefits.
The bridge fund sits separately from your long-term retirement savings. It holds enough to cover three to seven years of living expenses, including healthcare premiums, in accessible accounts — a taxable brokerage account, a Roth IRA, or a combination of both.
The Roth IRA is particularly useful for the bridge period because contributions can be withdrawn tax-free and penalty-free at any time, and qualified earnings withdrawals are also tax-free after age 59½. Since Roth withdrawals do not count as income for ACA subsidy purposes, they help you keep your marketplace insurance premiums low.
Building a bridge fund requires starting early. If you plan to retire at 60 and need $80,000 a year for five years, you need $400,000 in accessible funds beyond your long-term retirement accounts. Saving an additional $400,000 takes time, which is why planning for early retirement should begin at least 15 years before your target date.
Tax Planning During the Gap
The retirement gap years offer a unique tax planning opportunity that most people overlook. If you have stopped working but have not yet begun Social Security or required minimum distributions, your taxable income is likely much lower than it was during your career.
This creates a window for Roth conversions — moving money from a traditional IRA or 401(k) into a Roth IRA. You pay income tax on the converted amount, but because your income is lower, you may be in a 12 or 22 percent bracket instead of the 24 or 32 percent bracket you faced while working.
Once the money is in the Roth, it grows tax-free, and withdrawals in later years are also tax-free. This reduces your future required minimum distributions, which can lower your Medicare premiums and reduce the taxation of your Social Security benefits.
I think of Roth conversions during the gap as pre-paying your tax bill at a discount. The math gets complicated — you need to balance conversion amounts against ACA subsidy thresholds and state tax implications — but the long-term savings can be substantial. A solid understanding of RMD rules will help you see why reducing future mandatory withdrawals matters.
What to Do If You Are Already Behind
If you are within ten years of your target retirement date and have not planned for the gap, you still have options. First, calculate your actual gap — the number of years between your planned retirement age and when Medicare and Social Security begin. Multiply that by your expected annual expenses, including healthcare. That is your bridge fund target.
If the number seems daunting, consider adjusting your retirement date. Working even two extra years dramatically shrinks the gap and gives your existing savings more time to grow. A 62-year-old who works until 64 eliminates two years of gap expenses — easily $160,000 or more — while adding two more years of contributions and investment growth.
You can also explore part-time or consulting work during the early retirement years. Even $2,000 a month in earned income can cut your savings withdrawal rate significantly and extend the life of your portfolio. Many people find that partial retirement — reducing work rather than eliminating it — provides both financial security and a smoother psychological transition.
The point is not to scare you away from retiring. It is to make sure you plan for the full picture, including the years between your career and the safety net. The gap is where retirement plans succeed or stumble, and the earlier you account for it, the more confidently you can walk away from work when the time comes — and for a cautionary look at what happens when the gap widens, see Gen X’s retirement woes and the rise of silver squatters.
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