Roth 401(k)s let you invest dollars you've already paid taxes on for retirement. You can then withdraw your contributions—plus any investment growth—tax-free once you've turned 59½ and at least 5 years have passed since you made the first contribution to your Roth account. These tax advantages can make Roth 401(k)s an appealing way to save for the future. But as with other retirement accounts, there are important contribution limits to keep in mind.
It's important to note that your total contributions cannot be more than your annual eligible compensation at the company that sponsors your 401(k) plan. If your firm has both traditional 401(k) and Roth 401(k) contribution options, or if you have access to other Roth 401(k)s or traditional 401(k)s from another company, your combined contributions across all these will be limited to the annual employee contribution limit.
Roth 401(k) contribution limits 2026
The Roth 401(k) contribution limit for 2026 is $24,500 for employee contributions and $72,000 for employee and employer contributions combined. There's also a $8,000 catch-up contribution limit for those age 50 to 59 and 64 or older, which raises the employee limit to $32,500 for those eligible.
In 2026, those between ages 60 and 63 will be eligible to contribute up to $11,250 as a super catch-up contribution, if your plan allows. So in 2026, those 60 to 63 can contribute up to $35,750, depending on your plan. Check with your plan sponsor to find out if this larger catch-up is available to you.
Starting in 2026, if those with prior year wage income of $150,000 or more want to make catch-up contributions, they are required to make them to a Roth 401(k). While most plans offer a Roth option, such individuals can't make catch-up contributions if theirs doesn't. Learn more about Roth 401(k) catch-up rules.
Roth 401(k) contribution limits
| Pretax and Roth employee contributions | Employee + employer contributions | Catch-up contributions (in addition to the employee and employer limit) | |
| 401(k) contribution limit for 2026 | $24,500 | $72,000 | $8,000 (50-59 or 64+), $11,250 (60-63, if your plan allows) |
Source: IRS
Roth 401(k) income limits
Unlike Roth IRAs, Roth 401(k)s don't have any income limits. Regardless of how much you earn, you can contribute to a Roth 401(k) if your employer offers one.
What happens if you contribute too much to your Roth 401(k)?
Contributing more than your allowable amount to a Roth 401(k) may trigger additional income tax liabilities if the excess deferral amount and investment earnings are not distributed by April 15 following the close of the calendar year during which the excess deferral was made. If you wait to withdraw excess contributions after April 15 or after you file your taxes for that contribution year, you may be subject to double taxation—once for the year you contributed and a second time when the deferrals and attributable earnings are ultimately distributed from the plan.
401(k) plans typically have guardrails in place to keep you from contributing more than you're supposed to. But double-check your contribution amounts to make sure you won't exceed the limit, especially if you recently changed jobs or have multiple 401(k) plans. If you accidentally contributed too much to your Roth 401(k), it's a smart idea to reach out to a tax professional for guidance on how to best remove those excess contributions. Excess deferrals and earnings can be reported on Form 1099-R when you file taxes.
How to maximize your Roth 401(k) contributions
Contributing to your Roth 401(k) is just the first step to building your retirement savings. Consider these tips to potentially amplify the impact of those Roth 401(k) savings.
1. Prioritize any matching
Many employers encourage you to save for retirement by contributing a percentage of what you save in your 401(k) each year through what's called a 401(k) employer match. This usually means they contribute $0.50 or $1 for each $1 you do, up to a certain percent of your salary.
If your employer offers a 401(k) match, aim to contribute at least enough to your 401(k) to earn the full amount. This is like free money that could help to bolster your retirement savings over time.
2. Contribute early and often
One of the keys to a successful retirement is saving as early as you can. The longer your money is invested, the more time you have to potentially benefit from compounding, a snowball-type effect where your investment returns begin to earn investment returns.
Starting to save for retirement early could be especially beneficial to those with Roth accounts. Because people's earnings (and tax rates) may rise as they age, younger workers in particular may prefer Roth accounts to allow for long-term, tax-free growth.
3. Always remember your Roth 401(k) when changing jobs
There's a lot to juggle when changing jobs, but try not to forget about your retirement accounts. If you settle in with a new employer, make sure to decide on a plan for what to do with your old 401(k).