401k 2025 Contribution Limit IRS: Limits & Strategies

The 2025 401(k) limit of $23,500 is out, but the SECURE 2.0 super catch-up adds a new twist for workers 60-63. Here’s what you need to stay ahead of the limits and make the most of your savings.

2025 employee deferral limit: $23,500 · 2025 catch-up contribution (age 50+): $7,500 · 2025 super catch-up (ages 60-63): $11,250 · 2026 employee deferral limit: $24,500 · 2026 total contribution limit (employee + employer): $72,000 · 2026 catch-up contribution (age 50+): $8,000

The table below shows how the limits compare across years, highlighting the slow but steady climb.

What is the maximum to contribute to a 401k in 2025?

2025 employee deferral limit

The IRS sets the maximum amount you can elect to defer from your salary into a 401(k) at $23,500 for 2025. That’s up from $23,000 in 2024. This cap applies to traditional pre-tax and Roth contributions combined — they share the same annual limit. (IRS COLA page)

2025 total contribution limit (employee + employer)

When you add employer matching or profit-sharing contributions, the total that can go into your account in 2025 is $70,000. That’s the combined limit for all contributions — yours and your employer’s — excluding catch-up amounts. (IRS)

Catch-up and super catch-up for 2025

If you’re age 50 or older, you can contribute an additional $7,500 as a standard catch-up in 2025. But for participants aged 60 through 63, SECURE 2.0 introduced a higher “super catch-up” of $11,250 — that’s the standard $7,500 plus an extra $3,750. This tiered system is designed to help older workers accelerate savings in the final years before retirement. (IRS)

What is the super catch-up contribution for 2025?

Who qualifies for the super catch-up

Only participants who turn age 60, 61, 62, or 63 during the 2025 calendar year are eligible for the super catch-up. It’s not a blanket increase for everyone over 50 — SECURE 2.0 specifically targets the final working years. Your plan must also allow the higher catch-up; not all plans have adopted it yet. (IRS retirement topics)

Super catch-up amount for 2025

The total catch-up limit for eligible participants is $11,250 in 2025. This breaks down as the standard $7,500 catch-up plus an additional $3,750. That means a 62-year-old employee could potentially defer $34,750 in total ($23,500 employee limit + $11,250 super catch-up), provided the plan allows it. (IRS)

SECURE 2.0 Act provisions

The super catch-up was created by the SECURE 2.0 Act, signed into law in 2022. It took effect in 2025 after a one-year delay. The IRS has issued guidance confirming that plan amendments can be adopted retroactively, but participants should confirm with their plan administrator whether the super catch-up is available. (IRS retirement topics)

Has the IRS released the 2026 401k limits?

2026 employee deferral limit

Yes — on November 13, 2025, the IRS published IR-2025-111, announcing the 2026 employee deferral limit will increase to $24,500. That’s a $1,000 bump from 2025, reflecting inflation adjustments. (IRS newsroom)

2026 total contribution limit (employee + employer)

The overall annual additions limit for 2026 rises to $72,000, up from $70,000 in 2025. This applies to all defined contribution plans, including 401(k), 403(b), and governmental 457 plans. (IRS retirement topics)

2026 catch-up contributions

The standard catch-up for participants age 50+ increases to $8,000 in 2026, while the super catch-up amount for ages 60-63 hasn’t been announced yet — it remains at $11,250 for 2025. The IRS may adjust it later based on inflation. (IRS newsroom)

Can I put 100% of my pay into a 401k?

Plan-level limits

The IRS technically allows you to contribute up to 100% of your compensation, but only up to the annual dollar cap ($23,500 in 2025). However, your employer’s plan may impose its own percentage limit — common caps are 50%, 75%, or 90% of salary per pay period. (Fidelity (investment firm))

IRS compensation limits

Even if you theoretically could defer 100% of pay, the IRS limits the compensation you can use to calculate contributions. For 2025, that compensation cap is $350,000; for 2026 it’s $360,000. So high earners effectively can’t defer more than those amounts. (IRS retirement topics)

Practical considerations

Most financial planners recommend against contributing 100% of pay because you’d have nothing left for living expenses, and employer matching formulas are usually based on a lower percentage. Also, highly compensated employees may face nondiscrimination testing that limits their actual deferral percentage. (ADP (payroll and HR services provider))

The implication: 100% is legally possible but practically unwise for nearly everyone. Target a percentage that maximizes the employer match and fills the annual limit over 26 pay periods.

How to max out 401k contribution in 2026?

Adjust deferral percentage

To hit the $24,500 limit in 2026, divide by your number of pay periods. For a biweekly schedule (26 periods), that’s about $942 per paycheck. If you’re 50 or older and adding catch-up, the target becomes $32,500 total — roughly $1,250 per pay period. Log into your plan’s portal and update your deferral election. (Fidelity)

Include catch-up if eligible

If you turn 50 in 2026, you can switch from the standard limit to the catch-up limit at any point during the year. Many plans allow you to elect a separate catch-up contribution. Confirm with your plan administrator whether catch-up contributions require a separate election or if they’re automatic once you exceed the standard limit. (IRS retirement topics)

Monitor employer matching

Your employer match counts toward the total $72,000 limit. If your match is 100% on the first 6%, factor that into your planning to avoid exceeding the overall cap. Many people miss this and accidentally max out the match too early, causing a mismatch between pay periods. (Fidelity)

1. Calculate your paycheck contribution: Divide $24,500 by your pay periods (e.g., 26 for biweekly gives $942 per check).
2. Eligible for catch-up? Add $7,500 (age 50+) or $11,250 (ages 60-63 if plan allows) to the target, then divide by pay periods.
3. Log into your plan portal and update your deferral percentage to match the dollar amount.
4. Set a midyear check: Review your contributions after 6 months to ensure you’re on track and not exceeding the limit.
5. Monitor employer match to avoid hitting the $72,000 total limit too early.

The table below shows how the numbers stack up year over year, making the rising trend clear.

Five major plan types, each with slightly different 2025 and 2026 limits — but 401(k) sets the pace.

Timeline signal

1. 2023: Employee deferral limit $22,500; catch-up $7,500. (IRS (official government tax agency))
2. 2024: Limit rises to $23,000; catch-up stays $7,500. (IRS)
3. 2025: Limit $23,500; catch-up $7,500; super catch-up $11,250 for ages 60-63 (SECURE 2.0). (IRS)
4. November 13, 2025: IRS announces 2026 limits: $24,500 deferral, $72,000 total. (IRS newsroom)
5. 2026: Limit $24,500; catch-up $8,000; super catch-up TBD. (IRS)

“For 2026, the participant age 50 or older can generally contribute up to $32,500 total to a 401(k) plan.”

IRS newsroom (official government tax agency)

“Roth and pre-tax employee contributions count toward the same annual employee elective deferral limit.”

Fidelity Learning Center (investment firm)

“Employer plans may impose lower percentage limits, such as 50% or 75% of pay.”

ADP (payroll and HR services provider)

The numbers are clear, but the real question is what you do with them. For American workers, the choice is simple: adjust your 2026 deferral percentage now to hit $24,500 (or $32,500 with catch-up), or leave thousands in tax-advantaged savings space unused. The SECURE 2.0 super catch-up gives those 60-63 an extra window — but only if their plan participates. Check with your plan administrator, update your elections, and let compound interest do the rest.

For those already planning ahead, the 2026 401k contribution limits have been confirmed at $24,500 for employee deferrals.

Frequently asked questions

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