The 401(k) contribution limits 2026 let employees defer up to $24,500 of salary, up from $23,500 in 2025. Workers 50 and older can add an $8,000 catch-up for a total of $32,500, and those aged 60 to 63 can add $11,250 instead, for $35,750, according to the IRS 2026 retirement limits announcement. This guide explains the limits, how traditional and Roth 401(k) contributions are taxed, the new Roth catch-up rule, and the withdrawal rules to know.
401(k) Contribution Limits 2026 at a Glance
| Limit | 2025 | 2026 |
|---|---|---|
| Employee deferral (under 50) | $23,500 | $24,500 |
| Catch-up, age 50+ | $7,500 | $8,000 |
| Super catch-up, ages 60-63 (instead of the regular catch-up) | $11,250 | $11,250 |
| Total employee limit, 50+ | $31,000 | $32,500 |
| Total employee limit, ages 60-63 | $34,750 | $35,750 |
| Total employee + employer additions (415(c)) | $70,000 | $72,000 |
| Highly compensated employee threshold | $160,000 | $160,000 |
The same deferral limits apply to 403(b) plans, governmental 457(b) plans and the federal Thrift Savings Plan. The $72,000 total-additions cap does not include catch-up contributions.
What Is a 401(k)?
A 401(k) is an employer-sponsored retirement plan. You choose a percentage of each paycheck to contribute, and many employers add a matching contribution. Money in the account grows without annual tax until you withdraw it.
Traditional vs. Roth 401(k) Contributions
| Feature | Traditional 401(k) | Roth 401(k) |
|---|---|---|
| Tax break | Contributions lower taxable income now | No deduction now |
| Growth | Tax-deferred | Tax-free |
| Withdrawals | Taxed as ordinary income | Tax-free if qualified (age 59½ and 5 years) |
| Required minimum distributions | Generally starting at 73 | Not required from Roth 401(k)s starting in 2024 |
Your $24,500 limit is shared between traditional and Roth deferrals. You can split it any way your plan allows. Employer matching contributions are traditionally pre-tax, although SECURE 2.0 now lets plans offer Roth matching.
The 2026 Roth Catch-Up Rule
Starting in 2026, if your prior-year wages from the employer sponsoring the plan were above $150,000, any catch-up contributions you make must be Roth. Your regular $24,500 deferral can still be pre-tax. If your plan does not offer a Roth option, it may not allow catch-ups for higher earners at all. Our guide to catch-up contributions in 2026 covers the details.
How Much Tax Can You Save?
Example: A 45-year-old earning $110,000 contributes the full $24,500 pre-tax. Her taxable wages drop to $85,500. If her last dollars of income are taxed at 22%, the federal tax savings are about $5,390 for the year. A 61-year-old in the 24% bracket who contributes $35,750 pre-tax saves about $8,580.
Note that pre-tax 401(k) contributions still count as wages for Social Security and Medicare taxes.
Strategies to Get the Most From Your 401(k)
- Capture the full match. Contribute at least enough to earn your employer’s maximum match.
- Spread contributions evenly. Some plans only match each paycheck, so front-loading can leave match money on the table unless the plan has a true-up.
- Increase your deferral with each raise. Many plans offer automatic annual increases.
- Mix tax treatments. Splitting between traditional and Roth gives flexibility in retirement.
- Add an IRA. You can contribute to an IRA on top of your 401(k). See Roth IRA contribution limits for 2026.
- Check the Saver’s Credit if your income is modest. Read about the Saver’s Credit.
Withdrawal Rules and Taxes
- Traditional 401(k) withdrawals are taxed as ordinary income.
- Withdrawals before age 59½ generally add a 10% penalty unless an exception applies, such as separation from service in or after the year you turn 55.
- Required minimum distributions generally begin at age 73. Missing one triggers a 25% excise tax, reduced to 10% if corrected promptly.
- Rolling a 401(k) to an IRA or new plan is tax-free when done as a direct rollover.
For more detail, see our guide to how 401(k) distributions are taxed.
Common Mistakes
- Exceeding the 401(k) contribution limits 2026 when you change jobs mid-year. The $24,500 limit is per person across all plans, so tell your new employer what you already deferred.
- Assuming the $11,250 super catch-up is added on top of the $8,000 catch-up. It replaces it.
- Ignoring the Roth catch-up requirement if your prior-year wages were over $150,000.
- Cashing out when changing jobs, which triggers tax and often a penalty.
How the 401(k) Contribution Limits 2026 Apply to the Self-Employed
If you are self-employed with no employees other than a spouse, a solo 401(k) lets you contribute in two roles. As the “employee,” you can defer up to $24,500 for 2026 (plus catch-ups if you qualify). As the “employer,” you can add a profit-sharing contribution of up to 25% of compensation, which works out to about 20% of net self-employment earnings for sole proprietors. The combined total cannot exceed $72,000, not counting catch-ups.
Example: A 52-year-old consultant with $150,000 of net self-employment earnings could defer $24,500 plus an $8,000 catch-up, and add an employer contribution of roughly 20% of earnings after the self-employment tax deduction. That can shelter well over $50,000 in a single year. A CPA can help calculate the exact employer amount.
Plan Rules That Affect Your Contributions
- Eligibility: Plans can require up to one year of service before you join, although many allow immediate enrollment.
- Automatic enrollment: Many newer plans automatically enroll new hires, often at 3% or more. You can change the rate or opt out.
- Vesting: Your own deferrals are always 100% yours. Employer contributions may vest over several years.
- Nondiscrimination testing: If you earned more than $160,000 in the prior year, your plan may limit or refund part of your deferrals if it fails testing.
- Loans and hardship withdrawals: Many plans allow them, but they reduce long-term growth.
Frequently Asked Questions
What is the 401(k) limit for 2026?
$24,500 for employee deferrals, plus an $8,000 catch-up at 50 or older, or an $11,250 catch-up at ages 60 to 63.
What is the total 401(k) limit including employer contributions for 2026?
Total employee and employer additions are limited to $72,000 for 2026, not counting catch-up contributions.
Do Roth 401(k) contributions count toward the same limit?
Yes. Traditional and Roth deferrals share the $24,500 limit.
If I over-contribute to my 401(k), what happens?
Ask the plan to return the excess deferral and its earnings by April 15 of the following year. Otherwise the excess can be taxed twice.
Final Thoughts
The 401(k) contribution limits 2026 give you $1,000 more room than last year, and $1,500 more if you are 50 or older. Review your deferral percentage now, confirm how your plan handles the Roth catch-up rule, and make sure you are getting the full employer match.
Have questions about how this applies to your situation? Book a free consultation with Aric and get answers from a CPA.
This article provides information only and should not be construed as advice. It is provided without warranty of any kind.
