If you’re a high-earning professional in your 30s or 40s, your 401(k) is probably one of your biggest long-term wealth-building tools.
And if your plan offers both Roth and traditional 401(k) options, the natural question is:
“Should I go Roth, traditional, or a mix—and how much in each?”
The choice has very real consequences for your lifetime tax bill, your flexibility in retirement, and even how much your heirs ultimately receive. In this guide, we’ll walk through how Roth and traditional 401(k)s work under 2025–2026 rules, and how we at District Capital Management typically think about this decision for high earners.
Key Takeaways
- Higher tax rate later? Favor a Roth 401(k).
- Lower tax rate later? Favor a Traditional 401(k).
- Know your 2025-2026 limits: Employee deferral limits are $23,500 in 2025 and $24,500 in 2026; standard catch-ups are $7,500 in 2025 and $8,000 in 2026 for age 50+; and a special “super catch-up” of $11,250 is available for ages 60–63 if your plan allows it.
- Roth 401(k)s now behave more like Roth IRAs. Since 2024, Roth 401(k)s have no lifetime Required Minimum Distributions (RMDs), while traditional 401(k)s generally require RMDs beginning at age 73 (with a scheduled increase to 75 in 2033).
What Is a 401(k)?
A 401(k) is an employer-sponsored retirement plan where you save directly from your paycheck. Many employers sweeten the deal with a match or other contributions.
Example 1: 100% match up to 3% of salary → you put in 3%, your employer adds the same amount.
Example 2: 50% match up to 7% of salary → you put in 7%, employer adds 3.5%.
Some employers give a flat contribution regardless of your deferrals.
Tip: Always contribute enough to get the full match. It’s essentially free money.
401(k) Contribution Limits for 2025 and 2026
Here are the key numbers that matter for planning ahead:
Employee salary deferrals (Roth + traditional combined)
2025
Under age 50: $23,500
Age 50 or older: $23,500 + $7,500 catch-up = $31,000
2026
Under age 50: $24,500
Age 50 or older: $24,500 + $8,000 catch-up = $32,500
Super catch-up for ages 60–63
Starting in 2025, if your plan adopts the new feature:
Ages 60–63 may be allowed a special “super catch-up” of up to $11,250 instead of the standard catch-up.
This higher catch-up is scheduled to remain $11,250 in 2026 under current guidance.
The usual age 50+ catch-up would still apply in years outside ages 60–63.
Total combined employer + employee cap
This is the maximum combined contributions going into your account from you and your employer (not counting age 50+ catch-ups):
2025 total cap: $70,000
2026 total cap: $72,000 (based on current scheduled increases)
If your income is high and your employer is generous with matching or profit-sharing, you may bump up against these totals.
Traditional 401(k): How It Works
A traditional 401(k) uses pre-tax contributions:
Your contributions reduce your taxable income today.
The money grows tax-deferred.
Withdrawals in retirement are taxed as ordinary income.
Example:
Salary: $260,000
You contribute $23,500 pre-tax to your 401(k) in 2025
Your W-2 taxable wages are reduced to $236,500 (before factoring in other deductions)
Why traditional can be attractive:
You may be in a very high federal and state bracket today.
You expect your income and tax bracket to be lower in retirement, after the kids are out of the house, the mortgage is paid down, and work is optional or done on your terms.
Roth 401(k): How It Works
A Roth 401(k) uses after-tax contributions:
You do not get a tax deduction now.
The money grows tax-free.
If you meet the rules (generally age 59½ or older and the Roth 401(k) has been in place for at least 5 tax years), withdrawals of both contributions and earnings are tax-free.
The main tradeoff:
Traditional 401(k): “tax break now, taxes later.”
Roth 401(k): “no tax break now, potentially tax-free later.”
For someone in their 30s or early 40s with many years of compounding ahead, the idea of building a tax-free pool of money in a Roth 401(k) can be very appealing, especially if future tax rates are uncertain.
Employer Contributions: Pre-Tax vs Roth
Historically, employer contributions (matches, profit sharing) have always gone into the pre-tax side of the 401(k), even if your own contributions are Roth.
Recent law changes now allow some plans to offer Roth employer contributions as an option:
If you elect Roth employer contributions:
The employer money is taxable to you in the year it’s contributed.
Once in the Roth bucket, it grows tax-free and can potentially be withdrawn tax-free later as part of a qualified Roth distribution.
Not all plans have implemented this feature yet, and it doesn’t make sense for everyone. Even in plans that do allow it, many high earners still have part of their long-term savings in pre-tax employer contributions and Roth employee deferrals.
Who is eligible for a Roth 401(k)?
Unlike Roth IRAs, Roth 401(k)s have no income limits. If your employer offers a Roth 401(k) option, you’re eligible to contribute, no matter your income level.
Catch-Up Contributions and High Earners
If you are 50 or older, catch-up contributions are a powerful way to accelerate retirement savings in your peak earning years.
Standard catch-ups
2025: $7,500 (on top of the $23,500 regular limit)
2026: $8,000 (on top of the $24,500 regular limit)
Super catch-up (ages 60–63)
For ages 60–63, starting in 2025, the super catch-up of $11,250 may apply if your plan adopts it. This special amount replaces the regular catch-up in those years; it’s not on top of it.
Roth-only requirement for high-earning catch-up contributors
Under recent legislation and IRS guidance, catch-up contributions for some high earners are moving toward being Roth-only:
If your prior-year wages from that employer exceed a certain threshold (originally set at $145,000 and indexed for inflation),
Then, beginning with plan years starting in 2026 for many calendar-year plans, your age 50+ catch-up contributions will generally need to be made as Roth contributions, not pre-tax.
This change is still being implemented and refined, but the direction is clear: high-earning catch-up dollars are gradually being nudged toward Roth.
Early Withdrawals: Roth vs Traditional 401(k)
Traditional 401(k) early withdrawals
If you withdraw from a traditional 401(k) before age 59½, the default is:
The entire withdrawal is taxable as ordinary income, and
A 10% early withdrawal penalty may apply, unless you qualify for an exception (certain separations from service, disability, some medical exceptions, etc.).
SECURE 2.0 added a few more limited exceptions (like certain emergency distributions), but generally, traditional 401(k) money is designed for retirement-age use, not mid-career spending.
Roth 401(k) early withdrawals
Roth 401(k) withdrawals are a bit trickier than Roth IRAs. The tax rules look at the account as a combination of contributions and earnings, and for non-qualified distributions, the amounts are often treated pro rata.
That means:
A portion of your early withdrawal may be considered earnings, and
That earnings portion can be taxable and subject to penalties if you haven’t met the 5-year rule and age requirement.
A common approach, once you leave an employer and if it fits your situation, is to roll a Roth 401(k) into a Roth IRA. Roth IRAs use more favorable ordering rules (contributions generally come out first, tax-free), which can provide more flexibility if you ever need to access Roth money earlier than planned.
Required Minimum Distributions (RMDs)
RMDs are one of the biggest structural differences between Roth and traditional 401(k)s under current law.
Traditional 401(k) RMDs
RMDs generally begin at age 73 today.
For people born in 1960 or later, the RMD age is scheduled to move to 75 in 2033.
RMDs are taxable income, and they can impact:
Your tax bracket
How much of your Social Security is taxed
Medicare IRMAA surcharges
Some people working past 73 may be able to delay RMDs from their current employer’s plan, but that’s specific to plan rules and personal circumstances.
Roth 401(k) RMDs
Starting in 2024, Roth 401(k)s are no longer subject to lifetime RMDs for the original owner, similar to Roth IRAs.
This is a major planning advantage: you are not forced to withdraw from your Roth 401(k) at any specific age under current law. That gives you more control over your taxable income in retirement and more flexibility around leaving assets to heirs.
Where Roth and Traditional 401(k)s Are the Same
Despite the tax differences, Roth and traditional 401(k)s are more alike than different in many ways:
Same contribution limits: The annual deferral limits apply to your combined Roth + traditional contributions.
Same plan features: Automatic payroll deductions, eligibility, loans (if offered), and hardship rules are determined by the plan, not by whether you choose Roth or traditional.
Same investment menu: You typically choose from the same set of mutual funds, target-date funds, or other options for both Roth and traditional “sides” of the plan.
Same employer match formula: The match percentage is based on what you contribute, not on whether those dollars go into a Roth or a traditional.
The real difference is when you pay taxes and how much flexibility you have later.
How to Choose Between Roth and Traditional 401(k)
There is no one-size-fits-all answer, but here is a practical framework we use with many clients.
1. Compare your tax rate today vs. your likely tax rate later
Ask yourself:
Am I in a peak earnings phase with a high marginal tax rate today?
Do I expect my taxable income to be lower in retirement, or could it be similar or even higher (especially if I plan to work part-time, have rental or business income, or retire later)?
How might future changes in tax law affect me?
If you are in a relatively low bracket now (for example, early in your career or after a temporary dip in income), it can be compelling to lean more heavily toward Roth.
If you are in a very high bracket now and expect a more modest retirement lifestyle, leaning toward traditional may be reasonable.
Many high-earning professionals fall somewhere in between and benefit from doing some of each.
2. Consider your need for flexibility in retirement
Having both Roth and traditional balances creates tax diversification:
You can draw from traditional accounts up to a target tax bracket limit,
Then use Roth accounts for additional spending without increasing taxable income.
This can help manage:
Your overall lifetime tax bill
The impact of RMDs
Medicare premiums and other income-based thresholds
3. Look at your whole financial picture, not just the 401(k)
Your 401(k) doesn’t exist in a vacuum. Your decision should consider:
Taxable brokerage accounts
Equity compensation (RSUs, stock options, ESPP)
Business income or side hustles
Rental properties or other investments
Existing pre-tax IRA and 401(k) balances
At District Capital Management, we typically model how different mixes (all-Roth, all-traditional, and blended) might affect your after-tax cash flow over time, rather than deciding based only on this year’s refund.
Frequently Asked Questions
If I open a Roth 401(k), do I still get employer matching?
Yes, if your employer does employer matching then you will still get employer matching. However, it doesn’t go to your Roth 401(k), it goes to your traditional 401(k).
Can I have a Roth 401(k) or traditional 401(k) if I am self-employed?
If you’re self-employed, you can create your own Roth solo 401k. If you want to know more, check out the solo 401(k) versus SEP IRA blog and another on tax-free investing for YouTubers.
Should you split contributions between traditional and Roth 401(k)s?
Splitting contributions between a traditional and Roth 401(k) may make sense for some people. It would mean that some of your money in retirement would be tax-free, and some you would need to pay taxes on. It may make more sense to contribute to a Roth 401(k) if you’re currently in a low-tax bracket, and a traditional 401(k) if you’re in a high-tax bracket. It’s important to consult a financial advisor to help you decide if split contributions would be beneficial for your situation.
Should I roll over my traditional 401(k) to a Roth 401(k)?
It’s best to consult a financial advisor as it really depends on your unique situation. It’s important to keep in mind that if you do roll over your traditional 401(k) to a Roth 401(k), then you will need to pay taxes on it now. If you are converting a large amount of money, then it could bump you into a higher tax bracket which means a bigger tax bill.
Do I still get an employer match if I choose Roth?
Yes. The match may be pre-tax or Roth, depending on your plan.
Are Roth 401(k) RMDs gone?
Yes, starting in 2024, Roth 401(k)s have no lifetime RMDs.
I’m stock-heavy in my 401(k); could a local fiduciary advisor help me rebalance without hefty minimums?
Yes — at District Capital Management, our fiduciary financial planners regularly help clients review and rebalance their 401(k)s as part of their overall financial plan. You don’t need to have millions invested to receive thoughtful, personalized advice.
If your 401(k) has become too stock-heavy, we’ll review your plan’s available investment options and help you design a diversified mix that aligns with your goals, time horizon, and comfort with risk.
Is Roth 401(k) better than a traditional 401(k)?
There are many decisions to be made when it comes to retirement savings and planning. How you invest your money, choosing Roth 401(k) or traditional 401(k), and how much to save, are the most important decisions to be made to have a successful retirement. Having a fee-only financial planner who can assist you in making these decisions can help you rest assured knowing you’re on the right track.
At District Capital Management, we work with high-earning professionals in their 30s and 40s to build integrated financial plans that go far beyond “Roth vs traditional.” If you are interested in having a comprehensive financial plan, schedule a free discovery call with one of our fee-only financial advisors today.
Alvin Carlos, CFP®, CFA is a fee-only financial planner, in Washington, D.C. He has a Master’s degree in International Relations from SAIS-Johns Hopkins. Alvin is the founder of District Capital, a financial planning firm designed to help professionals in their 30s and 40s maximize their money and retire by 55, through holistic financial planning and research-driven investing. Schedule a free discovery call today.
