401(k) rollovers can be costly — and irreversible. What to know before moving your money

by | Sep 12, 2026 | Financial

401(k) rollovers can be costly — and irreversible. What to know before moving your money

Workplace retirement plan rollovers have become increasingly common as the aging population transitions into retirement. In 2023, nearly 6 million people moved approximately $682 billion from 401(k)-type plans into individual retirement accounts, more than triple the volume from the early 2000s. The trend reflects broader demographic shifts as baby boomers reach retirement age. Federal law permits tax-free rollovers at specific triggering events, such as job changes or retirement. Earlier this month, the IRS issued new guidance aimed at making the rollover process simpler and more standardized.

Financial advisors warn that rollovers present several potential pitfalls that investors should carefully consider before proceeding. One critical misconception is that rollovers cannot be reversed; in most cases, once funds move from a 401(k) to an IRA, the decision is permanent and workers cannot restore the assets to their original employer plan. Another common myth is that workers must roll over their accounts when changing jobs—most plans allow employees to maintain their balance with a former employer. Despite this option, data indicates that approximately 77% of 401(k) plans see fewer than half of retirees keeping assets in their employer accounts.

Fee structures represent a significant financial consideration in rollover decisions. IRAs typically charge higher investment fees than employer-sponsored plans because employees lose access to institutional-class mutual funds available through their employer’s purchasing power. Research from The Pew Charitable Trusts found that retail share fees average 0.34 percentage points higher than institutional share fees, representing a 37% difference. This disparity compounds over time; investors who retired in 2018 and rolled assets to IRAs would accumulate approximately $45.5 billion less in aggregate savings over a 25-year retirement period due to fee differentials.

IRA accounts offer greater investment flexibility with broader fund selection compared to the limited rosters typically available in 401(k) plans. However, this increased choice may not always benefit investors, potentially leading to decision paralysis. An additional consideration involves fiduciary obligations; while employers sponsoring 401(k) plans have legal duties to prioritize workers’ interests, financial intermediaries recommending specific IRA investments may not carry similar obligations. Financial professionals recommend thoroughly evaluating both the advantages and disadvantages of rollovers before making this significant financial decision.

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