Average 401(k) Balance by Age in US 2026
The 401(k) remains the cornerstone of retirement saving for American workers, and the numbers heading into mid-2026 reflect a system producing record savings alongside a deeply unequal distribution of those gains. According to Fidelity Investments’ Q4 2025 Retirement Analysis — covering 26,200 corporate defined contribution plans and 24.8 million participants as of December 31, 2025 — the average 401(k) balance at year-end 2025 was $146,400, up more than 11% from the prior-year quarter and representing the third straight year of double-digit annual balance growth. The median balance, a more reliable indicator of where typical American workers actually stand, was significantly lower at $34,400 — meaning the average is pulled sharply upward by a small number of high-balance accounts. Separately, Vanguard’s preview of its How America Saves 2026 report — based on full-year 2025 plan data — found average balances in its plans hit a record $167,970, with a median of $44,115, a 16% gain year-over-year. The gap between average and median across both providers tells the same story: 401(k) wealth in America is highly concentrated at the top, with millions of workers holding far less than headline averages suggest.
The broader picture in 2026 is one of record participation and record savings rates coexisting with record financial stress. Fidelity’s total savings rate — employee plus employer contributions combined — held steady at 14.2% through 2025, the third consecutive quarter at that level and close to Fidelity’s recommended 15% target. The number of 401(k) millionaires on the Fidelity platform reached 665,000 in Q4 2025, up from 654,000 in Q3 2025 and 595,000 in Q2 2025 — with the average millionaire being 59 years old with an average plan tenure of 26 years. Yet at the same time, Vanguard reported that 6% of participants took a hardship withdrawal in 2025 — up from 4.8% in 2024 and roughly 2% before the pandemic — a signal of growing financial strain running underneath the record balance headlines. Q1 2026 data from Fidelity confirmed that balances dipped slightly due to market volatility in early 2026, though the savings rate hit its highest recorded level in that quarter, with Americans demonstrating consistent commitment to contributions despite market turbulence.
Interesting Facts: Average 401(k) Balance by Age in the US 2026
| Fact | Figure |
|---|---|
| Fidelity average 401(k) balance (Q4 2025) | $146,400 |
| Fidelity median 401(k) balance (Q4 2025) | $34,400 |
| Vanguard average balance 2025 (How America Saves 2026 preview) | $167,970 (record) |
| Vanguard median balance 2025 | $44,115 |
| Vanguard year-over-year balance gain | +16% |
| Fidelity year-over-year balance gain (Q4 2025) | +11% |
| Consecutive years of double-digit annual balance gains (Fidelity) | 3 |
| Fidelity total savings rate (employee + employer) | 14.2% |
| Fidelity employee contribution rate | 9.5% |
| Fidelity employer contribution rate | 4.7% |
| Vanguard average employer match | 4.6% (median 4%) |
| 401(k) millionaires on Fidelity platform (Q4 2025) | 665,000 |
| Average age of Fidelity 401(k) millionaires | 59 years old |
| Average plan tenure of Fidelity millionaires | 26 years |
| 5-year consistent savers average balance (Fidelity Q4 2025) | $304,200 |
| Participants in target-date funds (Fidelity Q1 2026) | 65.9% |
| Vanguard hardship withdrawal rate (2025) | 6% (vs 4.8% in 2024) |
| 2026 401(k) contribution limit (under 50) | $24,500 (IRS) |
| 2026 catch-up contribution limit (age 50+) | +$8,000 ($31,000 total) — Note: NerdWallet |
| 2026 super catch-up limit (ages 60–63, SECURE 2.0) | +$11,250 ($35,750 total) |
| Americans who need $1.46 million for comfortable retirement | Northwestern Mutual 2026 survey |
| Workers with access to a DC plan (March 2024, BLS) | 70% of private-industry workers |
| US families with any retirement account (2022 SCF) | 54.3% |
Source: Fidelity Investments Q4 2025 Retirement Analysis (about.fidelity.com, March 4, 2026) — 26,200 plans, 24.8 million participants; Vanguard How America Saves 2026 preview (InvestmentNews, March 4, 2026) — 2025 full-year data; Vanguard How America Saves 2025 (Vanguard.com, June 2025) — year-end 2024 data; IRS 401(k) Limit Increases for 2026; Fidelity Q1 2026 Retirement Analysis (Kiplinger, June 2026); Northwestern Mutual 2026 Planning & Progress Study; Congressional Research Service — Distribution of Retirement Account Balances (2022 SCF)
The $132,570 gap between Fidelity’s $146,400 average and its $34,400 median is the single most important statistical context for understanding 401(k) savings in America. It means that a small proportion of high-balance accounts — those owned by long-tenured, high-earning, consistently contributing workers, often over 55 — are lifting the average well above what the typical account holder actually holds. When Vanguard reports a $167,970 average against a $44,115 median, the pattern repeats. Both datasets reflect the same underlying dynamic: retirement wealth compounds over decades, and those who started early, contributed consistently, and stayed invested have dramatically different outcomes from those who started late, contributed sporadically, or withdrew early.
The 665,000 401(k) millionaires on Fidelity’s platform — up from 537,000 at end-2024, a 24% increase in a single year — represent only 2.7% of Fidelity’s 24.8 million participants, underlining how rare seven-figure balances remain. The average millionaire’s 26 years of consistent plan tenure confirms that reaching $1 million is not primarily about income level — it is about time, consistency, and compounding. Millennials, despite their reputation for financial precarity, account for approximately 4% of Fidelity’s millionaire cohort, demonstrating that those who entered the workforce during the 2008–2010 period and contributed consistently have already crossed the threshold in their early-to-mid 40s.
Average 401(k) Balance by Age Group in 2026
Average 401(k) Balance by Age Group (Vanguard How America Saves 2025 — Year-End 2024 Data)
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Under 25 |█ | Avg $6,899 / Med $1,948
25–34 |████████ | Avg $42,640 / Med $14,933
35–44 |████████████████ | Avg $103,552 / Med $37,557
45–54 |████████████████████████ | Avg $188,643 / Med $64,900
55–64 |████████████████████████████████ | Avg $255,862 / Med $89,716
65+ |████████████████████████████████████████ | Avg $299,442 / Med $95,425
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Source: Vanguard How America Saves 2025 (year-end 2024 data, ~5M participants)
| Age Group | Average Balance (Vanguard 2025) | Median Balance (Vanguard 2025) |
|---|---|---|
| Under 25 | $6,899 | $1,948 |
| 25–34 | $42,640 | $14,933 |
| 35–44 | $103,552 | $37,557 |
| 45–54 | $188,643 | $64,900 |
| 55–64 | $255,862 | $89,716 |
| 65 and older | $299,442 | $95,425 |
| All ages (overall average) | $148,153 | $38,176 |
Source: Vanguard How America Saves 2025 report (June 2025), based on year-end 2024 data from ~5 million participants across 1,400+ qualified plans; Vanguard.com/investor-resources-education/retirement/savings; SoFi.com (Vanguard data compilation)
The progression from $6,899 in the under-25 group to $299,442 for the 65-and-over group is a direct illustration of compounding over time — the same mechanism Fidelity used to show that a saver who started at $100,000 and stayed the course through 2022–2025 ended with $191,463, while one who bailed from stocks ended with just $105,586. Every age cohort’s average is pulled above its median by high-balance outliers, but the gap widens considerably with age: for workers 55–64, the average of $255,862 is nearly three times the median of $89,716, meaning that the top earners and consistent contributors in pre-retirement years have amassed balances many times larger than the typical person in the same bracket.
The 35–44 group’s average of $103,552 crossing the six-figure threshold for the first time marks a meaningful milestone in the compound growth arc. For workers who started contributing at 22–25 and have consistently captured their employer match, being at or above the average at this stage broadly aligns with Fidelity’s rule-of-thumb milestone of 3× annual salary by age 40. Those below the average in this group have typically had interrupted contribution histories — career changes, job losses, early withdrawals, or simply starting late. The median of $37,557 for 35-to-44-year-olds confirms that roughly half of all American workers in that age band have less than $38,000 saved — a figure that puts the retirement readiness challenge in sharp relief for the largest working-age generation.
Average 401(k) Balance by Generation in 2026
Average 401(k) Balance by Generation (Fidelity Q4 2025 — 24.8M Participants)
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Gen Z (born 1997–2012) |█ | $13,500
Millennials (born 1981–1996) |██████ | $67,300
Gen X (born 1965–1980) |███████████████████ | $222,100
Baby Boomers (born 1946–1964)|████████████████████████████ | $249,300
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Source: Fidelity Q4 2025 Retirement Analysis (December 31, 2025)
| Generation | Avg 401(k) Balance (Fidelity Q4 2025) | IRA Balance (Fidelity) | Total Avg (401k + IRA) |
|---|---|---|---|
| Gen Z (born 1997–2012) | $13,500 | $6,672 | $20,172 |
| Millennials (born 1981–1996) | $67,300 | $25,109 | $92,409 |
| Gen X (born 1965–1980) | $222,100 | $103,952 | $296,252 |
| Baby Boomers (born 1946–1964) | $249,300 | $257,002 | $506,302 |
| Gen X total savings rate | Above 15% (only generation) | — | — |
| Millennials reaching 15-yr continuous saving mark | $1M+ 401(k) millionaires emerging | — | — |
Source: Fidelity Investments Q4 2025 Retirement Analysis (about.fidelity.com, December 31, 2025); carry.com compilation of Fidelity Q4 2025 and IRA data; mayocalc.com 401(k) by age and generation data, April 2026
Gen X’s $222,100 average 401(k) balance sits at approximately 3× annual salary for a median household income of roughly $75,000 — while Fidelity’s milestone guideline calls for 4× to 8× salary across the 45–60 age range, indicating a meaningful gap for the typical Gen X household. Gen X is also the only generation currently saving above Fidelity’s recommended 15% total savings rate — a positive sign given how close this cohort is to retirement and how much ground many have to make up. The wide variance in Gen X balances is partly explained by history: this generation reached its peak earning years before auto-enrollment and digital tools became standard, and had to navigate 401(k) investing largely independently in the 1990s, with uneven outcomes.
Baby Boomers’ combined 401(k) and IRA average of $506,302 is the highest of any generation, yet it still falls well short of the $1.46 million that Americans said they need for a comfortable retirement in the Northwestern Mutual 2026 Planning & Progress Study. That study reflects the reality that healthcare costs, longer life expectancy, and reduced pension coverage have made the retirement savings bar higher than at any previous time. Gen Z’s $13,500 average is contextually positive — this cohort is early in their careers, and auto-enrollment provisions in the SECURE 2.0 Act now require all 401(k) plans established after December 2022 to automatically enrol new employees, driving higher Gen Z participation rates than any prior generation at the same age.
401(k) Contribution Limits and Catch-Up Rules in 2026
2026 IRS 401(k) Contribution Limits
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Standard limit (under 50) |████████████████████████████████| $24,500
Catch-up (age 50–59, 64+) |████████████████████████████████████████| $31,000 total (+$8,000)
Super catch-up (age 60–63) |██████████████████████████████████████████████| $35,750 total (+$11,250)
Overall cap (with employer) |████████████████████████████████████████████████████| $70,000
Roth IRA limit (under 50) |████ | $7,000
Roth IRA limit (50+) |█████ | $8,000
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Source: IRS 401(k) Limit Increases 2026; SECURE 2.0 Act; IRS.gov
| Contribution Limit Metric | 2026 Limit (IRS) |
|---|---|
| Standard 401(k) employee limit (under 50) | $24,500 |
| 2025 limit (for comparison) | $23,500 |
| Catch-up contribution (age 50–59 and 64+) | +$8,000 ($31,000 total) |
| Super catch-up (ages 60, 61, 62, 63 — SECURE 2.0) | +$11,250 ($35,750 total) |
| Overall annual 401(k) cap (employee + employer) | $70,000 |
| Roth IRA limit (under 50) | $7,000 |
| Roth IRA limit (age 50+) | $8,000 |
| Roth IRA phase-out (single filer, 2026 MAGI) | $150,000–$168,000 |
| Roth IRA phase-out (joint filer, 2026 MAGI) | $236,000–$252,000 |
| Fidelity participants receiving employer match (Q4 2025) | 88.1% |
| Most common match structure | 100% of first 3% + 50% of next 2% |
Source: IRS — 401(k) Limit Increases for 2026 (IRS.gov); NerdWallet — Average 401(k) Balance by Age (September 2025 update); SmartAsset citing IRS 2026 limits; SECURE 2.0 Act super catch-up provision
The $24,500 standard 2026 limit — up from $23,500 in 2025 — continues the IRS’s annual inflation-indexed upward adjustments. For workers who can afford to max out, fully contributing to a 401(k) from age 25 through 65 at 7% average annual growth would produce a balance exceeding $5 million — but the median balance data confirms that full maxing is far from the norm. Most Americans contribute enough to capture their employer match but not much more. The 88.1% of Fidelity participants receiving a match (Q4 2025) is the most straightforward free-money mechanism in the retirement system — every dollar of uncaptured match is money left permanently behind.
The SECURE 2.0 Act super catch-up provision, effective since 2025 and continuing in 2026, allows workers aged 60, 61, 62, and 63 to contribute $35,750 total — $11,250 above the standard limit. This is targeted at workers in their final career stretch who may have undersaved during earlier years of parenthood, career transitions, or financial hardship. After age 63, the catch-up reverts to the standard $7,500 for all workers aged 50 and over. For the Gen X cohort currently approaching retirement age and identified by Fidelity as carrying the largest balance gap relative to needs, the super catch-up is a meaningful mechanism — an extra $11,250/year at 7% growth over 5 years adds approximately $65,000 to the balance at retirement, before any employer match.
401(k) Savings by Industry and Plan Design in 2026
Industry Variation in 401(k) Balances (Vanguard How America Saves 2025)
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Manufacturing |████████████████████████████████████████████| Highest avg balances
Financial Services |████████████████████████████████████ | High balances
Retail / Hospitality |████████████ | Below avg
Education / Healthcare|██████████████ | Below avg
Tech / Telecom |████████████ | Lowest averages
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Lower tech/telecom: shorter tenures, more job changes reduce compounding
Source: Vanguard How America Saves 2025
| Industry / Plan Design Metric | Data |
|---|---|
| Highest average 401(k) balances by sector | Manufacturing |
| Reason for manufacturing lead | Stronger employer matches + longer tenure |
| Lowest average balances by sector | Tech and telecom |
| Reason for tech/telecom lag | Shorter tenures, more job changes |
| Education and healthcare balances | Below average — lower employer contributions |
| Auto-enrollment adoption by plans (2024) | 61% of Vanguard plans (up from 10% in 2006) |
| Auto-enrolled vs voluntary median balance gap | 60% higher for auto-enrolled after 10+ years |
| Auto-escalation impact (3 years) | 20–30% more saved vs auto-enrol only |
| Plans using auto-enrollment under SECURE 2.0 | All new plans post-Dec 2022 (required) |
| Target-date fund participants (year-end 2024) | 67% of Vanguard participants |
| Professionally managed allocation (total) | 67% (60% TDF + 7% managed account) |
| Participants who increased deferral in 2024 | 45% — a record |
Source: Vanguard How America Saves 2025 (June 2025); Vanguard How America Saves 2025 key trends (corporate.vanguard.com); Vanguard sneak peek Q&A (April 2025); SECURE 2.0 Act auto-enrollment provisions
Manufacturing workers consistently hold the highest 401(k) balances in Vanguard’s industry analysis, a product of two compounding advantages: above-average employer match rates and longer average plan tenure. Workers at large manufacturers often spend their entire careers with one employer, accumulating decades of contributions and employer match at low-fee institutional rates. Tech and telecom workers, by contrast, tend to change employers frequently — a structural feature of those industries — meaning they experience more rollover disruptions, sometimes cash out small accounts, and lose the tenure-based compounding advantage.
Auto-enrollment’s impact on long-term balances is among the most striking findings in Vanguard’s two-decade dataset. Participants who were auto-enrolled and have been in their plans for 10 or more years have median balances approximately 60% higher than those who joined voluntarily — because auto-enrollment captures workers from day one, before they develop the habit of treating the paycheck as their full income. Combined with auto-escalation, which automatically increases the deferral rate annually, participants save 20–30% more within three years than auto-enrolled workers without escalation. The 61% of Vanguard plans now using auto-enrollment — up from just 10% in 2006 — represents the single most consequential structural change in American retirement saving over the past two decades, quietly shifting millions of workers toward better outcomes without requiring any active decision on their part.
401(k) Millionaires and Long-Term Savers in 2026
Fidelity 401(k) Millionaires — Quarterly Growth (2024–2026)
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Q4 2024 |████████████████████████████████████████████████████| 537,000
Q2 2025 |████████████████████████████████████████████████████████| 595,000
Q3 2025 |████████████████████████████████████████████████████████████| 654,000
Q4 2025 |██████████████████████████████████████████████████████████████| 665,000
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Average age of millionaire: 59 | Average plan tenure: 26 years
Millennials = ~4% of millionaires | Source: Fidelity Q4 2025
| Millionaire and Long-Term Saver Metric | Data |
|---|---|
| 401(k) millionaires on Fidelity platform (Q4 2025) | 665,000 |
| Q4 2024 millionaire count (for comparison) | 537,000 |
| Year-over-year increase in millionaires | +24% |
| Average age of 401(k) millionaire | 59 years old |
| Average plan tenure of millionaire | 26 years |
| Millennials’ share of Fidelity millionaires | ~4% |
| 5-year consistent savers average balance (Q4 2025) | $304,200 |
| 5-year consistent saver gain year-over-year | +16% |
| Women’s 401(k) balance after 15 years continuous (Q3 2025) | $501,100 (record) |
| Participants who changed allocation in Q4 2025 | Only 5.4% |
| Stay-the-course outcome 2022–2025 ($100K start) | $191,463 |
| Bail-from-stocks outcome 2022–2025 ($100K start) | $105,586 |
Source: Fidelity Investments Q4 2025 Retirement Analysis (newsroom.fidelity.com, March 4, 2026); Fidelity Q3 2025 Retirement Analysis (about.fidelity.com); InvestmentNews March 4, 2026; Kiplinger June 2026 (Q1 2026 data); psca.org citing Fidelity Q4 2024 data
The 24% jump in Fidelity 401(k) millionaires — from 537,000 at end-2024 to 665,000 at end-2025 — reflects both strong market performance and the maturing of a generation of consistent savers now entering the final decade of their careers. The average millionaire’s profile — 59 years old with 26 years in the same plan — is not the portrait of an unusually high-income worker. It is the portrait of consistency over time: contributing regularly, capturing the full employer match, staying invested through downturns, and never withdrawing early. Fidelity’s own modelling confirmed this starkly: a saver who stayed the course from 2022 to 2025 ended with $191,463 from a $100,000 starting balance, while one who bailed from stocks and stopped contributing ended with just $105,586 — a $85,877 difference from three years of panic-driven decisions.
The $304,200 average balance for workers who have been in the same 401(k) plan continuously for five years — compared to the overall average of $146,400 — quantifies the compounding advantage of plan continuity. Workers who job-hop frequently, particularly if they cash out or fail to roll over small balances, reset this compounding clock repeatedly. Women’s 401(k) balances crossing the $501,100 threshold for the first time after 15 years of continuous saving at Q3 2025 represents a genuine milestone in closing the gender retirement savings gap — though women’s lifetime earnings disadvantage means the road to that mark typically requires a higher savings rate relative to income than men face over the same period.
Disclaimer: The data research report we present here is based on information found from various sources. We are not liable for any financial loss, errors, or damages of any kind that may result from the use of the information herein. We acknowledge that though we try to report accurately, we cannot verify the absolute facts of everything that has been represented.
