401(k) Contribution Limits 2025–2026: Max Out Strategies
Employee deferral limits, catch-up contributions, the total limit including employer match, and how the mega backdoor Roth fits in.
The 2025 employee 401(k) deferral limit is $23,500, plus a $7,500 catch-up at age 50 and older, with a combined employee-and-employer cap of $70,000.
What you'll walk away with
Skim these first — then dig into the details below.
- 1The 2025 employee deferral limit is $23,500, with a $7,500 catch-up starting at 50.
- 2Employer contributions do not count against your deferral limit but do count toward the total cap.
- 3The combined employee-plus-employer limit is $70,000 for 2025.
- 4Front-loading contributions can forfeit match dollars unless your plan offers a true-up.
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The 401(k) is the highest-capacity retirement account most people have access to, and the employer match makes it the only place you can earn a guaranteed immediate return on savings.
Two separate limits govern it, and confusing them is the most common source of contribution mistakes.
The 2025 numbers
Limits are indexed to inflation and typically rise by $500 to $1,000 per year. Check your payroll settings each January so contributions scale with the new cap.
- Employee elective deferral: $23,500 across traditional and Roth 401(k) combined.
- Age 50+ catch-up: an additional $7,500, bringing the deferral cap to $31,000.
- A larger catch-up applies in the early 60s under current law — confirm eligibility with your plan.
- Total annual additions limit: $70,000, or $77,500 with the standard catch-up.
- Contributing to two employers’ plans in one year still shares one personal deferral limit.
Pacing contributions across the year
How you spread contributions matters as much as the total, because most employers match per pay period rather than annually.
- 1
Divide the annual limit by your number of remaining paychecks to get a per-period target.
- 2
Convert that to a percentage of pay and enter it in your payroll system.
- 3
Check whether your plan offers a true-up that credits missed match at year end.
- 4
Without a true-up, spread contributions evenly so a match is earned in every pay period.
- 5
Enable automatic annual escalation of 1% so your rate rises without another decision.
Traditional versus Roth 401(k)
Most plans now offer both, and you can split contributions between them. The choice hinges on whether your tax rate is higher today or in retirement.
- Traditional — reduces taxable income now, and withdrawals are taxed as ordinary income later.
- Roth — no deduction today, but qualified withdrawals in retirement are entirely tax-free.
- Early-career and lower-bracket savers generally favor Roth.
- High earners in peak years generally favor traditional.
- Employer matching contributions may be deposited as pre-tax dollars even when you choose Roth.
After you max out
Reaching $23,500 is a milestone, not a ceiling. There is usually more tax-advantaged room available before you resort to a taxable account.
- Max an HSA if you have a qualifying high-deductible health plan.
- Fund an IRA — the limit is entirely separate from your 401(k) deferral.
- Explore the mega backdoor Roth if your plan allows after-tax contributions and in-plan conversions.
- Then invest in a taxable brokerage with tax-efficient index funds.
Disclaimer: This page includes AI-assisted educational content reviewed for general accuracy. It is not personalized financial, tax, or legal advice. Verify numbers with a qualified professional and our editorial standards.
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Related guides that deepen the same decision.
401(k) vs IRA: Where Should You Save for Retirement First?
Contribute enough to your 401(k) to capture the full employer match, then max an IRA, then go back and fill the rest of your 401(k) — the match is the only guaranteed return you will ever get.
ReadRetirementMega Backdoor Roth: After-Tax 401(k) to Roth Conversion
A mega backdoor Roth lets you contribute after-tax dollars to your 401(k) beyond the normal deferral limit and convert them to Roth, potentially adding $30,000 or more of tax-free savings per year if your plan supports it.
ReadRetirementIRA Contribution Limits 2025–2026: Roth & Traditional
The IRA contribution limit is $7,000 per year, or $8,000 if you are 50 or older, and that total is shared across all your traditional and Roth IRAs combined.
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