Contributing to a 401(k) is one of the most effective ways to build retirement wealth. You reduce your taxable income today, your investments grow tax-deferred, and many employers match a portion of what you contribute. But there are annual limits on how much you can put in.
Here is everything you need to know about 401(k) limits in 2026 and how to make the most of them.
2026 401(k) Contribution Limits
Employee Contribution Limit
For 2026, employees can contribute up to $23,500 to a traditional or Roth 401(k). This is the amount you elect to have withheld from your paycheck and invested in your plan.
Catch-Up Contributions (Age 50 and Older)
If you are 50 or older by the end of the tax year, you can contribute an additional $7,500 in catch-up contributions, bringing your total to $31,000.
Super Catch-Up (Ages 60–63)
Under SECURE 2.0 Act provisions, workers aged 60 through 63 qualify for a higher catch-up contribution of $11,250, bringing the total for this age group to $34,750 in 2026.
Total Combined Limit (Including Employer Match)
The total limit — including employee contributions, employer match, and any after-tax contributions — is $70,000 for 2026.
Traditional 401(k) vs. Roth 401(k)
Most 401(k) plans offer both traditional and Roth options. The contribution limits apply to the combined total across both.
- Traditional 401(k): Contributions reduce your taxable income now. You pay income tax when you withdraw in retirement.
- Roth 401(k): Contributions are made with after-tax dollars. Qualified withdrawals in retirement — including all the growth — are tax-free.
Which is better? If you expect to be in a higher tax bracket in retirement, Roth has an edge. If you are in a high bracket now and expect lower taxes in retirement, traditional often wins. Many financial planners recommend splitting contributions between both for tax diversification.
Employer Match: Free Money You Should Not Leave Behind
Many employers match employee contributions — commonly 50% or 100% of contributions up to a percentage of your salary.
This match is effectively a guaranteed 50% to 100% return on your investment — instantly. Contributing enough to capture the full employer match should be the first priority before any other investment decision. Leaving match money on the table is one of the most expensive financial mistakes you can make.
Vesting Schedules
Your own contributions are always 100% yours immediately. Employer contributions may be subject to a vesting schedule:
- Immediate vesting: The match is yours from day one.
- Cliff vesting: You own 0% until a set date, then 100% immediately.
- Graded vesting: You earn a percentage each year over several years.
Check your plan documents so you know when your employer contributions are fully vested — this matters especially if you are considering changing jobs.
Should You Max Out Your 401(k)?
Prioritize in this order:
- Contribute enough to get the full employer match
- Max out an IRA ($7,000 in 2026, or $8,000 if 50+)
- Return to the 401(k) and contribute as much as your budget allows
- If you max both, use a taxable brokerage account for additional investing
How to Increase Your Contribution
- Increase by 1% of your salary this month. Most people do not notice the difference in take-home pay, but the long-term impact is significant.
- Direct your next raise automatically to your 401(k) before you adjust to the higher take-home pay.
- Check if your plan has an auto-escalation feature that increases contributions automatically each year.
Bottom Line
The 2026 employee contribution limit is $23,500, with catch-up limits of $7,500 for those 50 and older and $11,250 for those aged 60 to 63. At minimum, contribute enough to get your full employer match. Beyond that, increase contributions whenever you can and direct raises to savings before lifestyle inflation takes hold.