Only 34% of Americans Have Thought About Income After Age 80. Even a $1 Million 401(k) Can Leave the Last 15 Years Uncertain

Many retirees feel prepared for their 60s, but that confidence often weakens by around age 80, and even a seven-figure 401(k) does not ensure the money will last beyond that point.

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Most people have some sense of how they will cover expenses in their 60s. Far fewer have considered what happens if retirement stretches another 20 or 30 years.

A Guardian Life survey of 2,082 U.S. adults found that 48% have planned for income in their 60s, but only 34% have thought about how they would support themselves at 80 and older. Among adults ages 45 to 70, that share falls to 28%.

Consider a hypothetical 65-year-old with $1 million in a 401(k). A first-year withdrawal of $50,000 equals 5% of the balance and may appear enough for a comfortable retirement. But what happens when that same account still has to cover expenses at 85, 90, or even 95?

A $1 Million Balance Does Not Come With a Guaranteed Paycheck

Two risks can drain a 401(k). Longevity risk is the possibility of outliving the money. Sequence-of-returns risk is what happens when weak markets hit early, turning temporary losses into lasting damage once withdrawals begin.

Inflation worsens both problems. If the $50,000 withdrawal rises 3% a year to preserve spending power, it would reach about $105,000 by age 90.

Prices for older Americans have been increasing even faster than 3%. The Bureau of Labor Statistics’ research inflation index for adults 62 and older rose about 3.6% over the 12 months through September 2026.

The table below shows how much would remain at ages 85, 90 and 95 before that year’s withdrawal, assuming the retiree starts with $50,000 and raises it by 3% annually:

Even consistent returns do not make a 5% starting withdrawal safe for 30 years. At 6%, the account runs out at roughly 94. At 4%, the money is gone by 87. Market volatility makes the result even less predictable.

A Weak First Year Can Change the End Date

Now imagine the retiree experiences a 20% market decline in the first year. After the initial $50,000 withdrawal and the drop, the balance falls to $760,000.

If investments then earn 6% every year after that, the money is exhausted at about 84. If the same 20% loss happens in the 11th year instead, with 6% returns in all other years, the account lasts until about 88. The returns are identical; only the timing changes.

That is the danger of poor returns early in retirement, when withdrawals leave less capital available to recover. A free guide on the first five years of retirement explains how to defend against that risk.

Taxes and Medicare Rise as Withdrawals Increase

Withdrawals from a traditional pretax 401(k) are taxed as ordinary income. For a single retiree, combined income above $34,000 can make up to 85% of Social Security benefits taxable. If that retiree also receives the average 2026 retired-worker benefit of $2,071 a month, the $50,000 withdrawal would push income above that threshold.

As withdrawals grow, they can also trigger Medicare’s income-related monthly adjustment amount, or IRMAA. In 2026, those surcharges begin when a single filer’s modified adjusted gross income exceeds $109,000. The first tier raises the monthly Part B premium from $202.90 to $284.10 and adds $14.50 for Part D. Taxable Social Security benefits and other income count toward that limit as well.

Medicare uses tax returns from two years earlier to set premiums, so a large withdrawal at 85 would affect premiums at 87.

Required minimum distributions, or RMDs, add another factor. For someone who is 65 now, they generally begin at 75. After that, the IRS requires a minimum annual withdrawal based on age and account balance, though retirees may take more.

Social Security brings another layer of uncertainty. The 2026 Trustees Report projects that the retirement and survivors trust fund will exhaust its reserves in 2032, when continuing income would cover about 78% of scheduled benefits unless the law changes. That could make a retiree even more reliant on the 401(k).

Three Ways to Map Out the Ages Between 80 and 95

1. Separate essential spending from flexible spending. Determine how much of your necessities, including housing, food and insurance, can be covered by dependable income from Social Security, a pension or an annuity. In Guardian’s survey, 64% of adults said guaranteed income would make them more confident about retirement. Delaying Social Security can increase your inflation-adjusted monthly benefit for life, though it means giving up earlier checks.
2. Use the years before RMDs begin for Roth conversions. Converting pretax money now can reduce future required withdrawals, but each conversion adds taxable income. In 2026, the 22% federal bracket for single filers ends at $105,700 of taxable income, while Medicare’s first surcharge begins above $109,000 of modified adjusted gross income, or MAGI. Because those are different measures, conversions should be planned around both tax brackets and future Medicare costs.
3. Stress-test the plan to age 95 with a bad first year. Run your own numbers again with a 20% loss in year one and inflation near 4%. If the money disappears before 90, consider lowering the starting withdrawal. Holding some near-term spending money in cash or short-term Treasuries can also reduce the need to sell stocks during a downturn.

A $1 million 401(k) may be enough to last to 95. Whether it actually does depends on withdrawals, market returns and taxes. The markets cannot be controlled, but the other two can be managed through planning.