Automatic 401(k) rollovers reduce cash-outs, research finds — but few accounts reach new employer plans

by | Nov 10, 2026 | Financial

Automatic 401(k) rollovers reduce cash-outs, research finds — but few accounts reach new employer plans

A new analysis from Vanguard demonstrates that automatic 401(k) rollover systems are effectively reducing the number of workers who cash out small retirement account balances when changing employers. The Portability Services Network, a coalition of major 401(k) administrators launched in November 2023, has lowered cash-out rates substantially among workers with minimal account balances.

Among employees with less than $1,000 in their 401(k) accounts, the cash-out rate within 10 months of job separation dropped to approximately 9% from around 50% after their employers joined the network. For those with balances between $1,000 and $7,000, the cash-out rate declined from 39% to 31%. The system functions by automatically rolling departing workers’ small balances into temporary IRAs, which then attempt to match the funds with the employee’s new employer’s retirement plan. The typical worker affected by this system was 31 years old, earned roughly $20,000 annually, and had worked for their previous employer for about six months.

Despite reducing cash-outs, the network has faced adoption challenges. Of approximately 220,000 outbound rollovers analyzed, only 6% of accounts transferred into IRAs successfully moved to a new employer’s plan as of early 2026, primarily because few employers have yet enrolled in the network. The remaining accounts remain in interim IRAs waiting for employer matches. Roughly 23,787 plans representing 7.73 million participants have adopted automatic portability, while approximately 1.22 million eligible participants await matching with new employers.

Cashing out 401(k) balances carries significant financial consequences, including potential income taxes and a 10% early withdrawal penalty for workers under 59½, alongside lost investment growth opportunities. Keeping funds in interim IRAs presents its own challenges, as management fees may erode small balances, particularly those in conservative default investments. Additionally, complications arise with Roth accounts, as current IRS regulations prohibit rolling Roth IRAs into new employer plans, even into Roth 401(k)s, though network advocates are pushing for legislative changes to enable such transfers.

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