Vanguard Retirement Study: A Quiet 401k Revolution

Vanguard's 25th annual retirement study shows record 401k balances and participation rates, yet surging hardship withdrawals expose a deepening financial planning divide among American workers.

Average 401k balance reached $167,970 in 2025, up 13% year-over-year, as the US savings rate climbed to an all-time high of 12.1%.
Automatic enrollment drove plan participation to a record 86%, compared with roughly 65% two decades ago.
Hardship withdrawals hit a record 6% of participants in 2025 — triple the pre-pandemic baseline — marking the sixth straight annual increase.

Lead

Malvern, Pennsylvania — June 17, 2026. Vanguard has released the 25th edition of its flagship How America Saves report, documenting what the firm calls a "quiet retirement revolution" reshaping American financial planning. Covering nearly five million defined contribution plan participants, the Vanguard retirement study finds that structural changes to 401k plan design — not individual willpower — have driven retirement readiness to levels unimaginable a generation ago, even as a rising share of workers tap their accounts early to cover urgent household costs.

What Happened

The headline number is stark: average 401k balances in Vanguard-administered plans rose 13% in a single year to a record $167,970 at year-end 2025. The median balance climbed an even sharper 16% to $44,115. Those gains reflect both sustained equity market performance and the compounding effect of two decades of design-driven behavioral change.

The US savings rate within employer plans reached 12.1% in 2025 — an all-time high — with 45% of participants increasing their deferral rate during the year, matching the record set in 2024. Overall plan participation stood at 86% of eligible employees, a milestone that would have been implausible before automatic enrollment became widespread.

The Architecture of the Revolution

The defining insight of the 25-year Vanguard retirement study is that outcomes improved not because workers became more financially disciplined, but because plan architecture shifted the default from inaction to participation.

By year-end 2025, 61% of Vanguard defined contribution plans had adopted automatic enrollment, rising to 79% among plans with 1,000 or more participants — both records. The behavioral impact is decisive: automatically enrolled employees carried an overall participation rate of 94%, versus 64% for those in plans requiring a voluntary opt-in.

Auto-escalation — the feature that annually increases a participant's deferral rate without requiring active intervention — was present in 71% of plans, also a high-water mark. Nearly two-thirds of plans now set automatic enrollment defaults at 4% or higher, and approximately one-third default at 6%, both all-time highs.

Portfolio construction has similarly evolved. By the close of 2025, 69% of participants were invested in professionally managed allocations, an all-time high and up from 67% the prior year. Behavioral stability held: only 5% of participants made any trades during the year, a sign that the shift toward target-date and managed strategies is anchoring long-term investing behavior even amid market volatility.

The Shadow Statistic

The revolution carries an uncomfortable counterpoint. A record 6% of Vanguard plan participants took a hardship withdrawal in 2025, up from 4.8% in 2024 and roughly triple the approximately 2% annual rate that prevailed before the pandemic. It marks the sixth consecutive annual increase since Congress, in 2018, eliminated the requirement to exhaust loan options before accessing hardship funds.

The median withdrawal was $1,900 — a relatively modest sum that underscores the immediate-need character of these transactions. The top stated reasons were avoiding mortgage foreclosure or eviction and covering medical expenses, both non-discretionary pressures.

This tension — record savings growth alongside record early-access rates — reflects the bifurcated financial reality confronting American households. Workers participating in well-designed plans with steady employment are accumulating wealth at an accelerating pace. Workers facing housing cost pressures or medical shocks are leaning on retirement assets as a last-resort emergency buffer, eroding the long-term financial planning benefits those accounts are designed to provide.

The SECURE Act Context

The 401k trends documented by the Vanguard retirement study did not emerge in a policy vacuum. The SECURE Act of 2019 and SECURE 2.0 of 2022 both expanded and standardized automatic enrollment requirements, extended access to part-time workers, and introduced new catch-up contribution provisions. The data in How America Saves provides the most comprehensive empirical confirmation to date that legislative mandates accelerating automatic enrollment adoption are producing measurable improvements in the US savings rate at scale.

Outlook

The structural momentum behind 401k trends appears durable. As automatic enrollment and escalation spread to smaller plan sponsors — a trend visible in the data — participation rates should continue rising. The more acute policy challenge is the widening gap between savings accumulation and household financial resilience. With hardship withdrawals on a six-year upward trajectory, policymakers and plan sponsors face growing pressure to integrate emergency savings vehicles alongside traditional retirement accounts, ensuring that the quiet revolution in long-term financial planning is not quietly eroded by short-term economic stress.