Most American careers run through a long list of employers. The Bureau of Labor Statistics tracked workers born between 1957 and 1964 from ages 18 to 58 and found they held an average of 12.9 jobs across that span, with more than 40% of those jobs held before age 25. Median tenure with a current employer is just 3.9 years as of January 2024. Each of those job changes is also a retirement account decision, and millions of workers never make one. The accounts simply stay where they were left.
The result is a large and growing pile of orphaned 401(k) plans. According to Capitalize, roughly 31.9 million forgotten 401(k) accounts hold about $2.1 trillion in assets, averaging about $66,000 per account. That is retirement money sitting in plans the original owner is no longer monitoring, often with outdated contact information, default investment lineups, and no one tracking fees.
A Hot Labor Market Keeps Creating New Orphans
The U.S. workforce now stands at about 159.00 million nonfarm payroll positions as of May 2026, and job openings remain at historically elevated levels. JOLTS data showed 7.6 million openings in April 2026, a reading in the 90th percentile historically. Heavy demand for workers means more voluntary moves, and every move is another fork in the road where an old plan can either get rolled forward or quietly left behind. Vanguard’s plan participation rate has climbed to 86% in 2026, in part due to the widespread adoption of automatic enrollment. That is good for accumulating savings, but it also means more workers leave each job with a real balance.
Vanguard’s plan participation rate has climbed to 86% in 2024, in part due to the widespread adoption of automatic enrollment. That is good for accumulating savings, but it also means more workers leave each job with a real balance. The participation systems that fix the on-ramp do not fix the off-ramp.
Why Workers Do Not Consolidate
Some of this is friction. Some of it is financial bandwidth. Personal savings as a share of disposable income have dropped from 6.2% in the first quarter of 2024 to 3.9% in the first quarter of 2026, the lowest reading in the nine-quarter window. Median usual weekly earnings for full-time workers came in at $1,235 in the first quarter of 2026, while average annual consumer expenditures hit $78,535 in 2024. When household cash flow is this tight, paperwork on an old 401(k) tends to slide to the bottom of the list.
The amounts at risk are meaningful. Fidelity’s most recent quarterly data put the average 401(k) balance at $144,400, with age-based averages of $73,200 for workers ages 35 to 39, $152,100 for those ages 45 to 49, and $244,900 for those ages 55 to 59. Vanguard’s 2024 figures showed an average balance of $148,153 and a median of $38,176. The gap between mean and median matters here: most workers’ typical orphaned account is closer to the median, and losing track of even one mid-career balance can shift a retirement timeline.
The amounts at risk are meaningful. While balances fluctuate with market volatility, Fidelity’s Q1 2026 analysis shows the average 401(k) balance across all participants is $141,000. Vanguard’s 2024 figures—the most comprehensive longitudinal set, showed an average balance of $134,128, but a much lower median of $38,189 for certain professional cohorts. The gap between mean and median matters here: most workers’ typical orphaned account is closer to the median, and losing track of even one mid-career balance can shift a retirement timeline.
What the Numbers Actually Mean for a Career
If a typical worker moves through a dozen employers and contributes at any meaningful rate at most of them, that worker can end up with five or six legacy accounts by midlife. Vanguard’s data shows the average participant deferral rate is 7.7%, with average total contributions, including employer match, running 12%. Spread across multiple custodians, those balances often end up in default target-date funds with different glide paths, in plans with different fee structures, and with no single statement showing total retirement assets.
There are three practical paths workers use to handle an old plan after leaving a job. Roll the balance into the new employer’s 401(k) if the plan accepts incoming rollovers, which keeps everything in workplace plans and preserves access to plan loans. Roll the balance into an IRA, which usually offers more investment choices but loses the creditor protections and loan features of a workplace plan. Leave the money in place, which is allowed for balances above $7,000 and is the default that produces orphans.
SECURE 2.0’s auto-portability provisions are starting to move small balances below that threshold automatically into a new employer’s plan, which addresses the smallest accounts but does little for the $66,000 averages in the Capitalize data.
The forgotten-401(k) problem is what happens when a labor market built for mobility meets a retirement system built around single-employer plans. The $2.1 trillion figure is the price of that mismatch, and it grows every time a worker changes jobs without closing the loop on the account they left behind.
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