For 2026, the Roth 401k limit runs $24,500 under age 50. Add the catch-up and that climbs to $32,500 at 50 or older, or $35,750 between 60 and 63. One thing is new this year. If your FICA wages topped $150,000 in 2025, your catch-up contributions go into a Roth account no matter which type you’d pick.
What Is a Roth 401k?
A Roth 401k is a designated Roth account built into an employer-sponsored 401k plan and funded with after-tax dollars. You pay taxes on the money before it goes in. Withdrawals come out tax-free once you’re 59½ and you’ve met the five-year rule, which starts with your first Roth contribution to the plan. Earnings taken out before then can be taxed, and before 59½ they can draw a 10% penalty too.
The 2026 Roth 401k Limit Is $24,500, Plus Catch-Up for Age 50 and Up
The 2026 Roth 401k limit is $24,500 if you’re under 50. Turn 50 or older during the year and you can add an $8,000 catch-up, for a $32,500 total. Turn 60 through 63 and the catch-up jumps to $11,250, for a $35,750 total. Those expanded catch-up rules came with SECURE 2.0. The 2026 contribution limit is the same for Roth and traditional dollars, since the two share one cap.
| Age | Contribution Limit | Catch-Up | Total Possible Contribution |
|---|---|---|---|
| Under 50 | $24,500 | $0 | $24,500 |
| 50 to 59 | $24,500 | $8,000 | $32,500 |
| 60 to 63 | $24,500 | $11,250 | $35,750 |
| 64 and older | $24,500 | $8,000 | $32,500 |
Does a Roth 401k Have Income Limits?
A Roth 401k has no income limit. If your plan offers a Roth option, you can contribute the full $24,500 for 2026 at any income, plus any catch-up you qualify for.
That’s the biggest difference from a Roth IRA. In 2026, Roth IRA contributions phase out between $153,000 and $168,000 of modified adjusted gross income for single filers. For married couples filing jointly, the range is $242,000 to $252,000. Above it, you can’t contribute to a Roth IRA at all.
Income does shape one Roth 401k rule, and it took effect this year.
The New Rule: High Earners Must Use Roth for Catch-Up Contributions
If your FICA wages from your employer topped $150,000 in 2025, your 2026 catch-up contributions have to go into a Roth account. SECURE 2.0 requires it starting in 2026, and final IRS regulations take over in 2027. The $150,000 figure is the inflation-adjusted threshold, up from the statute’s $145,000 baseline. The rule looks at last year’s wages to decide this year’s treatment.
The mandate covers both the standard $8,000 catch-up and the larger $11,250 catch-up for ages 60 to 63. It applies even if your plan used to let you choose pre-tax or Roth for catch-up dollars. Your regular contribution up to $24,500 stays untouched. Only the catch-up portion has to go Roth.
The rule has a sharper edge if your plan has no Roth option. The Roth requirement applies to plans with Roth features, so a high earner in a plan without one may lose catch-up contributions altogether. Check your plan before you count on that extra room.
You don’t get a choice here if the rule applies to you. Roth withdrawals come out tax-free later, so the mandate may cost less than it first appears.
Roth 401k vs. Traditional 401k: The Difference Comes Down to Tax Timing
Roth and traditional 401k contributions share the same $24,500 limit for 2026. What changes is the tax timing. A traditional 401k lowers your taxable income this year, and you pay taxes when you withdraw the money later. A Roth 401k skips that upfront break, and qualified withdrawals in retirement aren’t taxed.
Which one fits depends on your tax rate now compared with your rate in retirement, and the later rate is hard to guess. Social Security timing, pensions, other income, and required withdrawals from traditional accounts all feed into it. The Boldin Planner projects your taxes year by year in retirement, so you can test Roth and traditional contributions against your own numbers.
Roth 401k vs. Roth IRA: Which Has Higher Limits?
A Roth 401k and a Roth IRA both grow tax-free, and their limits sit far apart. The Roth 401k allows $24,500 in 2026, plus catch-up, for up to $32,500 or $35,750 depending on your age. A Roth IRA caps out at $7,500 plus a $1,100 catch-up, for $8,600, and it phases out at higher incomes.
| Account Type | Limit Under 50 | Limit 50 and Older | Income Limit? |
|---|---|---|---|
| Roth 401k | $24,500 | $32,500 | No |
| Roth IRA | $7,500 | $8,600 | Yes |
Employer Match Doesn’t Count Against Your $24,500 Limit
Employer match doesn’t count against your personal $24,500 limit. You can max out your own contribution, plus catch-up, and still receive matching funds on top of it. The IRS caps the combined total from you and your employer, and that combined limit rises to $72,000 for 2026. It’s $80,000 if you’re 50 or older, or $83,250 if you’re 60 to 63.
Employer match dollars land in a traditional account by default, even when your own contributions go into a Roth 401k. You’ll owe tax on that money when you withdraw it. Since 2023, SECURE 2.0 has let plans offer Roth treatment for the match.
If your plan offers that election and you take it, the match has to be fully vested when it’s contributed. It also counts as taxable income that year instead of at withdrawal. Check your plan documents to see which rule applies to you.
What Do People Get Wrong About Roth 401k Limits?
Two mix-ups come up most: how the Roth and traditional limits combine, and whether you can hold a Roth 401k and a Roth IRA at once.
Myth: You can contribute the full limit to both Roth and traditional in the same year. Both account types share one limit, so splitting your contributions between them divides the same total.
Myth: You can’t have a Roth 401k and a Roth IRA at the same time. Each account has its own limit, so maxing one doesn’t reduce your room in the other. The IRA side has its own trap: go over the IRA limit and the IRS charges a 6% penalty on the excess.
Three Habits Make Your Roth 401k Limit Easier to Hit
Automating contributions, taking the full employer match, and using catch-up contributions do the most to help you reach the limit.
Automate your contributions. Payroll deductions move money into savings before you can spend it, and spreading them across the year keeps your cash flow steady.
Capture your full employer match first. A match adds money you can’t get any other way, so hit that threshold before you fund anything else.
Use your catch-up contribution if you qualify. Turning 50 opens up extra room to save, and turning 60 opens up even more.
Who Should Prioritize a Roth 401k?
Three groups get the most from a Roth 401k. They’re high earners locked out of a Roth IRA, workers in a lower tax bracket now, and savers using catch-up contributions.
High earners who get phased out of a Roth IRA still have full access to a Roth 401k. That makes it one of the few ways to build tax-free income once your paycheck outgrows IRA eligibility.
Workers in a lower tax bracket today than they expect to be in later can lock in today’s rate with Roth contributions. Paying tax now, while the rate is lower, often beats paying tax later at a higher one.
Savers in their fifties and sixties get an extra lever through catch-up contributions. Whether you’re behind on savings or want a bigger cushion, the higher limits in those years let you close the gap faster.
Blending Account Types Gives You More Control at Withdrawal Time
Roth 401k, traditional 401k, and Roth IRA contributions work best as one coordinated strategy. That includes the order you fund IRAs, HSAs, and taxable accounts. Pulling from a traditional account in a lower-income year and a Roth account in a higher-income year lets you manage your tax bracket. Since 2024, Roth accounts in an employer plan carry no required minimum distributions for the original owner. That lets them grow tax-free longer than a traditional account can.
Roth 401k Limits FAQ
What is the Roth 401k contribution limit for 2026?
A worker under 50 can put $24,500 into a Roth 401k in 2026. Turning 50 adds an $8,000 catch-up for a $32,500 total. Ages 60 through 63 get a bigger catch-up that brings the total to $35,750. Employer contributions sit on top, up to a combined $72,000 before catch-up.
Does employer match count toward my Roth 401k limit?
Your employer’s match sits outside your personal $24,500 contribution cap and doesn’t reduce how much you can put in yourself. It counts instead toward a separate combined limit for you and your employer, which is $72,000 in 2026 before catch-up.
How does a Roth 401k compare to a Roth IRA?
A Roth 401k allows a much bigger contribution than a Roth IRA: $24,500 in 2026 compared with $7,500, before catch-up. A Roth IRA also phases out for higher earners, which is why many high-income savers rely on the 401k version instead.
Can I contribute to a Roth 401k and a Roth IRA in the same year?
A Roth 401k and a Roth IRA carry separate limits, so contributing the maximum to one doesn’t reduce your room in the other. In 2026, that means up to $24,500 in the Roth 401k and $7,500 in the Roth IRA, plus catch-up at 50 and older. Your income has to qualify you for the Roth IRA.
Is there an income limit for a Roth 401k?
A Roth 401k has no income limit. Anyone whose plan offers a Roth option can contribute $24,500 in 2026, plus catch-up at 50 and older. The Roth IRA is the account with income limits, so high earners phased out of a Roth IRA often turn to a Roth 401k.
