Average 401(k) Balance by Age (2025 Data)

The 401(k) is the primary retirement savings vehicle for most American workers. But how do you know if your balance is on track? Benchmark data from Fidelity Investments and Vanguard — the two largest 401(k) plan administrators — provides a useful reference point, though the averages need to be interpreted carefully.

2025 Contribution Limits

The IRS 401(k) contribution limit for 2025 is $23,500 for employee contributions (up from $23,000 in 2024). Workers aged 50 and older can make catch-up contributions of an additional $7,500, bringing the total to $31,000. Those aged 60–63 have a higher catch-up limit of $11,250 under SECURE 2.0, allowing contributions up to $34,750.

The total 401(k) contribution limit including employer contributions is $70,000 in 2025.

Average and Median 401(k) Balances by Age

Data below is approximate based on Fidelity's Q4 2024 analysis of accounts on its platform. Median figures are roughly 40–60% of averages due to the skewing effect of high earners.

Ages 20–29: Average approximately $11,000; median approximately $4,000. Low balances reflect recent workforce entry and lower contribution rates. Time is the biggest asset this group has.

Ages 30–39: Average approximately $51,000; median approximately $21,000. Balances accelerate as incomes grow and the compounding effect of earlier contributions starts to show.

Ages 40–49: Average approximately $122,000; median approximately $52,000. The "accumulation gap" between early and late savers becomes substantial in this decade.

Ages 50–59: Average approximately $213,000; median approximately $85,000. Catch-up contributions become available. Many in this group are in their peak earning years but also face college costs.

Ages 60–69: Average approximately $272,000; median approximately $112,000. Required Minimum Distributions begin at age 73 under current rules. Those with balances far below these averages should prioritize maximizing contributions in these years.

What "On Track" Actually Means

Fidelity's commonly cited guideline: save 1x your salary by 30, 3x by 40, 6x by 50, 8x by 60, and 10x by retirement at 67. These are rough heuristics based on a 15% total savings rate (including employer match) throughout a career and an assumption of replacing 80% of pre-retirement income.

If you are behind these benchmarks, the most important thing is not to panic — and not to ignore it. Even a modest increase in contribution rate, compounded over 15–20 years, has a dramatic effect on ending balance.

The Employer Match Is the Most Important Number

Before optimizing any other aspect of your retirement strategy, confirm you are contributing at least enough to capture your full employer match. A 50% match on up to 6% of salary is a guaranteed 50% return on that portion of your contribution — the best risk-adjusted return available to most investors. Leaving any match on the table is one of the most costly financial mistakes a worker can make.

What If You Are Behind?

If your balance is significantly below benchmark, the most effective actions in order: increase your contribution rate (even 1% per year makes a meaningful difference), review your investment allocation (many 401(k) participants are invested too conservatively for their age), consolidate old 401(k)s from former employers into your current plan or an IRA, and consider a Roth conversion strategy if you expect to be in a higher tax bracket in retirement.

A financial advisor who specializes in retirement planning can model multiple scenarios and show you the exact impact of various contribution increases, asset allocation changes, and retirement timing decisions on your projected retirement income.