Updated

Updated · AOL · Aug 14

Fidelity, Vanguard Put Older Americans' 401(k) Median at $103,202 as Averages Top $264,500

Updated

Updated · AOL · Aug 14

Fidelity, Vanguard Put Older Americans' 401(k) Median at $103,202 as Averages Top $264,500

Q: What hidden penalty could instantly wipe out a quarter of your retirement savings if you miscalculate IRS rules at age 79?

The hidden penalty is the IRS excise tax for missing or undercalculating a required minimum distribution, and at age 79 it can equal 25% of the amount you failed to withdraw. That matters because 79-year-olds with traditional 401(k)s and IRAs are already subject to RMD rules. The IRS uses a life-expectancy factor of 21.1 at age 79, so the required withdrawal is your prior year-end balance divided by 21.1. On a $103,202 balance, that is about $4,891. If you failed to take that amount, the penalty could be about $1,223, on top of the ordinary income tax still owed when you eventually withdraw the money. The “quarter of your retirement savings” language refers to the 25% tax on the shortfall, not usually 25% of the entire account. But if the missed amount were large, the hit could still be severe. The penalty can fall to 10% if you correct the error within the IRS correction window, generally within two years, and file Form 5329. In some cases, the IRS may waive or reduce it for reasonable error if you fix the mistake promptly. The broader risk is that an RMD mistake can also raise taxable income later if you have to catch up, potentially affecting Medicare premiums and the taxation of Social Security. That is why accurate RMD calculations and timely withdrawals matter more than comparing your 401(k) balance with someone else’s.

3 articles · Updated · AOL · Aug 14

$103,202 is the more realistic 401(k) benchmark for older Americans, far below Fidelity's $264,500 average for savers 70+ and Vanguard's $330,186 average for those 65+.
Million-dollar accounts skew the average higher, while the median marks the midpoint of retirees and better reflects what a typical older saver holds.
At age 79, required minimum distributions start to matter: using the IRS 21.1 life-expectancy factor, a $103,202 balance implies about a $4,891 annual withdrawal from a traditional 401(k).
Social Security remains the income base for many retirees, with the average retired-worker benefit at about $2,085.98 a month in July 2026, while home equity, IRAs and pensions can matter as much as a workplace plan.
Health costs still loom over late-retirement finances: Fidelity estimates a 65-year-old retiring in 2026 may need roughly $185,500 after tax for healthcare through retirement.