Everything you need to know about 401(k) plans — contribution limits, employer match, investment choices, and rollover strategies.
$23,5002026 employee contribution limit
$31,000If age 50+ (catch-up)
Free moneyEmployer match = 100% return
📋 Reviewed by WiseIQ Editorial Team · Updated April 2026 · Editorially independent
$23,500
2026 employee 401(k) contribution limit
$31,000 if age 50+
3–6%
Typical employer match (free money)
Always contribute at least enough to get the full match
$70,000
2026 total 401(k) limit (employee + employer)
Including employer contributions
What Is a 401(k)?
A 401(k) is an employer-sponsored retirement savings plan that allows employees to contribute a portion of their paycheck before taxes are taken out. Your contributions reduce your taxable income today, and your investments grow tax-deferred until you withdraw them in retirement.
🌟 Always Get the Full Employer Match First
If your employer offers a 401(k) match, contributing enough to get the full match is the single best financial decision you can make. A 50% match on up to 6% of salary is a 50% instant return on investment — better than any investment available.
2026 401(k) Contribution Limits
Type
2026 Limit
Employee contribution (under 50)
$23,500
Employee contribution (50+, catch-up)
$31,000
Total (employee + employer, under 50)
$70,000
Total (employee + employer, 50+)
$77,500
Traditional 401(k) vs. Roth 401(k)
Many employers now offer both traditional and Roth 401(k) options. The key difference is when you pay taxes:
Feature
Traditional 401(k)
Roth 401(k)
Contributions
Pre-tax (reduces taxable income now)
After-tax (no immediate tax benefit)
Growth
Tax-deferred
Tax-free
Withdrawals in retirement
Taxed as ordinary income
Tax-free
Required minimum distributions
Yes, starting at age 73
No (starting 2024)
Best for
Expect lower tax rate in retirement
Expect higher tax rate in retirement
How to Maximize Your 401(k)
Contribute at least enough to get the full employer match — this is free money; never leave it on the table
Increase contributions by 1% each year — you won't notice the difference in your paycheck, but it compounds significantly over time
Choose low-cost index funds — look for funds with expense ratios below 0.20%; avoid actively managed funds with high fees
Don't cash out when changing jobs — roll over to an IRA or your new employer's 401(k) to avoid taxes and penalties
Max out if possible — the $23,500 limit is the maximum tax-advantaged space available to you
⚠ Watch Out for High-Fee Funds
Many 401(k) plans offer actively managed mutual funds with expense ratios of 0.5%–1.5%. Over 30 years, a 1% fee difference can cost you $100,000+ in lost returns. Always choose the lowest-cost index fund available in your plan — typically an S&P 500 index fund or total market fund.
401(k) Rollover: What to Do When You Leave a Job
When you leave an employer, you have four options for your 401(k):
Roll over to an IRA (recommended for most people) — gives you more investment choices and lower fees
Roll over to your new employer's 401(k) — simplifies your accounts if the new plan has good investment options
Leave it in your old employer's plan — acceptable if the plan has excellent low-cost funds
Cash out (avoid this) — you'll owe income taxes plus a 10% early withdrawal penalty if under 59½
Frequently Asked Questions
The 2026 employee 401(k) contribution limit is $23,500 (up from $23,000 in 2025). If you are age 50 or older, you can contribute an additional $7,500 catch-up contribution for a total of $31,000. The total limit including employer contributions is $70,000 ($77,500 for age 50+).
If you expect to be in a higher tax bracket in retirement than you are today, choose the Roth 401(k). If you expect to be in a lower bracket in retirement, choose the traditional 401(k). For most people in their 20s and 30s, the Roth 401(k) is the better choice. If you're unsure, split your contributions between both.
Your 401(k) balance is yours to keep. You can roll it over to an IRA (recommended for most people), roll it to your new employer's 401(k), or leave it in your old employer's plan. Do not cash it out — you'll owe income taxes plus a 10% early withdrawal penalty if under 59½.
Yes. Having a 401(k) does not prevent you from contributing to a Roth IRA, as long as your income is within the Roth IRA limits ($161,000 for single filers, $240,000 for married filing jointly in 2026). Contributing to both is an excellent strategy for tax diversification in retirement.