The most common question people ask about their 401(k) is also the question with the most misleading answer: "How much can I put in?"
The IRS answer is $24,500. But that's only one of the limits. There are actually four separate caps, and most people only know about the first one. Understanding all four could let you save up to $72,000 in a single year.
30-Second Summary: The 2026 employee deferral limit is $24,500. Workers 50+ can add $8,000 (or $11,250 if aged 60–63). The total combined limit, including employer contributions, is $72,000. Your employer's match does NOT count against your $24,500 personal limit.
The Four Limits You Need to Know
| Limit | 2026 Amount | What It Covers |
|---|
| Employee elective deferral (§402(g)) | $24,500 | Your salary deferrals (pre-tax + Roth) |
| Standard catch-up (age 50+) | $8,000 | Additional employee deferral |
| Super catch-up (ages 60–63) | $11,250 | Replaces standard catch-up for this age range |
| Total annual additions (§415) | $72,000 | Employee + employer + after-tax, everything |
Source: IRS Notice 2025-67 [1].
Let's break each one down.
Limit 1: The $24,500 Employee Deferral
This is your personal limit. It's the maximum you can defer from your paycheck into pre-tax and/or Roth 401(k) contributions combined. If you contribute $15,000 pre-tax and $9,500 Roth, you've used all $24,500.
Your employer's match does not count against this number. This is the most common misconception. If your employer matches $5,000, your personal limit is still $24,500, not $19,500 [2].
If you have two jobs, each with a 401(k), the $24,500 limit is aggregate across both plans. You can't defer $24,500 at each job.
Limit 2: Standard Catch-Up ($8,000 for Age 50+)
Once you turn 50 during the calendar year, you can contribute an additional $8,000 on top of the $24,500. Total employee limit: $32,500.
This catch-up is separate from the base limit. Your plan tracks it automatically.
Limit 3: Super Catch-Up ($11,250 for Ages 60–63)
Under SECURE 2.0, workers specifically aged 60, 61, 62, or 63 can contribute $11,250 instead of $8,000 as their catch-up. This is not additive. It replaces the standard catch-up [3].
| Age | Standard Deferral | Catch-Up | Total Employee Limit |
|---|
| Under 50 | $24,500 | $0 | $24,500 |
| 50–59 | $24,500 | $8,000 | $32,500 |
| 60–63 | $24,500 | $11,250 | $35,750 |
| 64+ | $24,500 | $8,000 | $32,500 |
At age 64, you drop back to the standard catch-up. Those four years between 60 and 63 are a savings sprint. If you're in that window and not maximizing, you're missing one of the few times the tax code actually works in your favor.
Limit 4: The Total Annual Addition ($72,000)
This is the everything limit. It includes:
- Your salary deferrals ($24,500)
- Employer matching contributions
- Employer profit-sharing contributions
- After-tax (non-Roth) employee contributions (if your plan allows them)
For most people, this limit is irrelevant because employer contributions don't come close to filling the gap. But for high earners at generous companies, it matters.
High earner example: Rachel, 40, earns $200,000. Her employer matches dollar-for-dollar up to 5%.
- Rachel's deferral: $24,500
- Employer match: $10,000
- Subtotal: $34,500
- Remaining §415 space: $72,000 − $34,500 = $37,500
If Rachel's plan allows after-tax (non-Roth) contributions, she could contribute an additional $37,500. Combined with an in-plan Roth conversion, this is the "Mega Backdoor Roth" strategy. Not every plan offers it, but it's worth checking [4].
New for 2026: Mandatory Roth Catch-Up for High Earners
Starting January 1, 2026, if you earned more than $150,000 in FICA wages during the prior year (2025), all your catch-up contributions must go into a Roth 401(k) account. You cannot make pre-tax catch-up contributions [5].
This applies only to the catch-up portion ($8,000 or $11,250), not to the base $24,500 deferral. And it only applies if your prior-year wages exceeded $150,000.
If your plan doesn't offer a Roth 401(k) option, your employer needs to add one for you to make catch-up contributions at all. Most large employers are already compliant, but smaller plans may still be updating.
The Compensation Cap: $360,000
The IRS limits how much of your salary can be counted for plan calculations. In 2026, that cap is $360,000 [6].
This mainly affects employer match calculations. If your salary is $400,000 and your employer matches 5%, the match is calculated on $360,000, not $400,000. Maximum match: $18,000.
How to Actually Max Out Your 401(k)
To hit the $24,500 limit with 26 biweekly pay periods:
| Annual Target | Per-Paycheck Deferral |
|---|
| $24,500 (under 50) | $942.31 |
| $32,500 (50–59) | $1,250.00 |
| $35,750 (60–63) | $1,375.00 |
Set your deferral as a dollar amount rather than a percentage if your plan allows it. Percentage-based deferrals can miss the target if your income fluctuates (bonuses, overtime, commission).
Some plans have a "maximize" or "true-up" feature that automatically adjusts your final paychecks to hit the limit exactly. Ask your HR department.
A word about pace: some plans stop matching after you hit the deferral limit. If you front-load your contributions and max out by September, you might miss the employer match on your October through December paychecks. Check your plan's "true-up" policy before front-loading aggressively. Missing three months of match because you were trying to be clever about time-in-market is not the optimization you think it is.
Your Next Move
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Check your current deferral rate. Log into your plan's website (Fidelity, Vanguard, Empower) and see what percentage or dollar amount you're contributing.
-
Calculate the gap. If you're contributing $500 per paycheck (26 per year = $13,000), you're $11,500 short of the maximum. That's $442 per paycheck.
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Increase by at least 1%. If maxing out isn't feasible, increase by 1% of salary. On an $85,000 salary, that's $32.69 per paycheck before tax savings. You won't feel it.
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If you're 50–63: Make sure your plan has your birthdate correct and that catch-up contributions are enabled. Some plans require you to opt in separately.
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If you're a high earner: Ask your plan administrator if after-tax (non-Roth) contributions are allowed. If yes, research the Mega Backdoor Roth.
For a broader overview of how 401(k) plans work, including vesting, investment options, and the Roth vs. Traditional decision, see our 401(k) guide. To understand how IRA contributions fit alongside your 401(k), our IRA contribution limits article covers the interaction.
Use our compound interest calculator to see the 30-year difference between your current contribution and the maximum.
For help freeing up cash to increase contributions, our guide on reducing your monthly expenses provides practical starting points.
References
- Internal Revenue Service. (2025). Notice 2025-67: Cost-of-Living Adjustments for 2026. IRS.gov. https://www.irs.gov/pub/irs-drop/n-25-67.pdf
- Internal Revenue Service. (2025). 401(k) limit increases to $24,500 for 2026, IRA limit increases to $7,500. IRS.gov. https://www.irs.gov/newsroom/401k-limit-increases-to-24500-for-2026-ira-limit-increases-to-7500
- Fidelity Investments. (2026). 401(k) contribution limits for 2025 and 2026. Fidelity.com. https://www.fidelity.com/learning-center/smart-money/401k-contribution-limits
- Guideline. (2026). What is the annual compensation limit? Guideline.com. https://help.guideline.com/en/articles/8593911-what-is-the-annual-compensation-limit
- Schwab. (2026). What to know about catch-up contributions. Schwab.com. https://www.schwab.com/learn/story/what-to-know-about-catch-up-contributions
- Internal Revenue Service. (2025). Notice 2025-67. IRS.gov. https://www.irs.gov/pub/irs-drop/n-25-67.pdf
