Myth 1: "I can't afford to contribute right now"
The most expensive myth of all. Every year you wait, you're not losing one year of growth — you're losing the last, most powerful year of compounding.
Take $200 a month invested at an 8% average annual return:
- Started at 25: roughly $698,000 by age 65
- Started at 35: roughly $298,000 by age 65
- The cost of one decade of "not yet": about $400,000
Even small amounts beat nothing by a landslide. And if 200 bucks a month feels steep, remember Vanguard's data: the average employee deferral is just 7.6% of pay.
Myth 2: "I'm enrolled, so I'm saving enough"
Check your default rate. Nearly 4 in 10 auto-enrollment plans still default workers at 3% or below. With the average employer match at 4.7%, a 3% contributor ends up at a combined 7.7% savings rate — barely half of the 12–15% Vanguard recommends.
The fix takes two minutes: bump your contribution to at least 6%, and turn on auto-escalation so it rises 1% a year. Most plans let you set it once and forget it.
Myth 3: "Skipping the employer match is no big deal"
This is the one that makes financial advisors twitch. A typical match is 50 cents on the dollar for the first 6% of your salary. On a $70,000 salary, contributing 6% ($4,200) gets you $2,100 in free money.
That's a 50% instant return — before any investment growth. Skipping it for 30 years at 8% growth costs you roughly $237,000. No investment on Earth hands you a guaranteed 50% return with zero risk.
Myth 4: "I'll just max it out to the $24,500 limit"
For 2026, the IRS employee limit is $24,500 — but only 14% of participants hit the max. If you're under 50, maxing means stashing $2,042 every month, which is out of reach for most people. Don't let the "all or nothing" trap stop you from doing something.
Priorities instead: (1) grab the full employer match, (2) build a 3–6 month emergency fund, (3) then push toward maxing.
And if you're 60–63, you get the SECURE 2.0 "super catch-up": $11,250 extra, for a total of $35,750 in 2026.
Myth 5: "Fees don't matter much"
Fees matter enormously — precisely because they compound too. Compare $100,000 invested for 30 years at 7%:
- At 0.10% fees: about $753,000
- At 1.10% fees: about $568,000
- The fee gap cost you: roughly $185,000
Check your plan's expense ratios. Index funds inside most 401(k)s charge 0.03–0.15%. Actively managed funds often charge 0.50–1.00% or more. The cheaper one almost always wins over time.
Myth 6: "Cashing out when I change jobs is fine"
Every year, millions of people cash out small 401(k)s at job changes. A $15,000 cash-out at 25 doesn't cost $15,000 — it costs what $15,000 would become: about $326,000 by age 65 at 8% growth.
Plus you pay income tax plus a 10% early-withdrawal penalty right now. Roll it over instead. It takes one phone call.
Myth 7: "My plan doesn't offer much, so why bother"
Even a bare-bones plan with no match beats no plan. Contributions cut your taxable income dollar for dollar (pre-tax option), grow tax-deferred, and the 2026 combined employee-plus-employer ceiling is $72,000.
| 2026 401(k) Limits | Amount |
|---|---|
| Employee contribution (under 50) | $24,500 |
| Catch-up (age 50+) | $8,000 extra |
| Super catch-up (ages 60–63) | $11,250 extra |
| Combined employee + employer | $72,000 |
| Avg. employer match (Vanguard) | 4.7% of pay |
The one-line takeaway: contribute at least enough to grab the full match, nudge your rate up 1% a year, and pick the cheapest index funds in your plan. That's 90% of 401(k) success right there.
FAQ
Q: What's the 401(k) contribution limit in 2026?
A: $24,500 for employees under 50. Workers 50+ can add $8,000 ($32,500 total), and workers 60–63 get a super catch-up of $11,250 ($35,750 total), per IRS Notice 2025-67.
Q: What happens if I contribute too much?
A: Excess deferrals get taxed twice — once when contributed, once when withdrawn. Your plan will return the excess if you catch it before April 15 of the following year.
Q: Should I choose Roth or traditional 401(k)?
A: If you expect to be in a lower tax bracket in retirement, traditional saves you taxes now. If you expect higher income later, Roth locks in today's rate. Many savers split between both.
Q: Is borrowing from my 401(k) really that bad?
A: You miss market growth while the money's out, repayments are made with after-tax dollars, and if you leave your job you may have to repay the balance immediately or face taxes and penalties.
Q: What should my savings rate be?
A: Vanguard recommends a combined 12–15% of pay, including the employer match. Fidelity's research lands on 15% starting at age 25.
Tool tie-in: Compound-interest calculator — plug in your monthly contribution and watch what "just the match" becomes over 30 years.