What is the average 401k balance at 40?

According to Fidelity's Q2 2026 data, the average 401(k) balance for savers age 40-44 is $120,100, and for ages 35-39 it's $81,600. Medians run well below averages — Vanguard's 2026 How America Saves report puts the overall median 401(k) balance at $44,115 versus an average of $167,970 across all ages. The recommended target is 3x your annual salary by 40, so on an $80,000 salary, you'd want $240,000 saved.

Is $200,000 in a 401k good at 40?

$200,000 in a 401k at 40 is well above Fidelity's reported average for the 40-44 age band ($120,100), putting you ahead of most savers your age. Whether it's sufficient depends on your salary. On a $60,000 salary it's excellent (3.3x); on a $100,000 salary you're behind the 3x benchmark but still ahead of most peers.

How can I grow my 401k faster at 40?

To grow your 401k at 40: (1) contribute toward the 2026 maximum of $24,500/year, (2) get the full employer match, (3) invest in low-cost index funds for long-term growth, (4) avoid withdrawals and loans from your 401k, (5) roll over old 401k accounts into your current plan or an IRA, (6) increase your contribution rate by 1-2% each year.

What should a 40-year-old invest their 401k in?

A common guideline at 40 is 80-90% stocks / 10-20% bonds, though many target-date funds designed for someone retiring around 2050 are around 85% stocks at 40. Within equities, broad low-cost index funds (total US market, international) are typically preferred over actively managed funds. This is general education, not individualized investment advice — your own allocation should reflect your risk tolerance and full financial picture.

Average 401k Balance by Age 40 (2026 Data)

Wondering how your 401(k) stacks up at 40? Here are the benchmarks, what the average American has, and how to build momentum before retirement.

Average 401k Balance at 40

Fidelity’s Q2 2026 retirement analysis (participant data as of the first quarter of 2026) reports average 401(k) balances by five-year age band rather than a single figure for “40,” so the table below shows the two bands that straddle age 40:

Metric	Amount
Average 401k balance, ages 35-39 (Fidelity, 2026)	$81,600
Average 401k balance, ages 40-44 (Fidelity, 2026)	$120,100
Overall median 401k balance, all ages (Vanguard, 2026)	$44,115
Overall average 401k balance, all ages (Vanguard, 2026)	$167,970
Recommended target at 40	3x annual salary
Example target on $80K salary	$240,000

Averages are pulled up by a smaller number of high-balance, long-tenured savers. Medians are meaningfully lower than averages at every age — the gap between Vanguard’s $167,970 overall average and $44,115 overall median illustrates why.

401k Balance Benchmarks at 40 by Salary

Annual Salary	Benchmark (3x)	vs. Fidelity 40-44 Average ($120,100)
$50,000	$150,000	Above average, below benchmark
$65,000	$195,000	Below average and benchmark
$80,000	$240,000	Below average and benchmark
$100,000	$300,000	Below average and benchmark

This illustrates why the average trails the salary-multiple benchmark for most earners — most workers need to save more aggressively in their 40s to hit 3x salary.

2026 Contribution Limits at 40

Account	2026 Annual Limit
401(k) employee contribution	$24,500
Employer match (typical)	3-6% of salary
Traditional/Roth IRA	$7,500

Catch-up contributions (an extra $8,000 for 401(k), $1,100 for IRA in 2026) begin at age 50.

Projection: Growing $120,100 (Fidelity 40-44 Average) to Retirement

Adding $1,500/month at a 7% average annual return, compounded monthly (an illustrative long-term historical average — actual returns vary year to year and are not guaranteed):

Age	Projected Balance
40	$120,100
45	$277,600
50	$501,000
55	$817,600
60	$1,266,500
65	$1,902,900

Projection is illustrative only, assumes a constant 7% nominal annual return compounded monthly and steady $1,500/month contributions, and does not account for taxes, fees, or market volatility.

Common 401k Mistakes at 40

Mistake	Better Approach
Not contributing enough to get full employer match	Always get the full match first
Investing too conservatively	At 40, still generally majority equities for most savers
Taking 401k loans	Avoid if at all possible
Forgetting old 401k accounts	Roll them into current plan or IRA
Holding too much company stock	Diversify — many advisors suggest no more than 5-10%

Written by WealthVieu

WealthVieu researches and writes data-driven personal finance guides using primary sources including the IRS, Bureau of Labor Statistics, Federal Reserve, and Census Bureau.

The content on Wealthvieu is for informational purposes only and should not be considered financial, tax, or investment advice. Consult a qualified professional before making financial decisions. Full disclaimer · Editorial policy