Total U.S. retirement assets have reached a record $42.3 trillion, driven by strong market performance and continued robust contribution rates, according to the Investment Company Institute's quarterly report. The figure includes $12.4 trillion in 401(k) plans, $14.8 trillion in IRAs, and the remainder in defined benefit plans, government retirement funds, and annuities.
The average 401(k) balance for participants with at least 20 years of tenure at their employer has climbed to $428,000, a new high that reflects both sustained contributions and the powerful effect of compound returns over long time horizons. Fidelity Investments reports that the number of 401(k) millionaires in its record-keeping platform has grown to 544,000, up 32% from a year ago, largely due to stock market appreciation.
However, the headline figures mask significant disparities. The median 401(k) balance across all participants remains just $35,000, reflecting the large number of workers who have limited tenure or who participate sporadically. Workers at small businesses, part-time employees, and gig workers remain far less likely to have access to employer-sponsored retirement plans. The SECURE 2.0 Act's provisions expanding automatic enrollment and small employer plan incentives are expected to help close these gaps over time, but progress has been gradual.
