Bruno Koba
Roth IRA vs 401(k): Which Should You Prioritize?
At some point in your late twenties, you start to piece together that there are multiple types of retirement accounts and that you're probably supposed to be using more than one of them. The Roth IRA vs 401(k) question comes up constantly, and most people never get a clear answer.
You have a 401(k) through work. Contributions come out before you see your paycheck, some portion of it your employer matches, and honestly you haven't thought much about it beyond that. But you keep hearing about Roth IRAs. Are they the same thing? Is one better? Should you be doing both?
This guide gives you a clear, direct answer, including the one thing most Roth IRA vs 401(k) explainers skip: it's not actually an either/or choice.
The Short Answer (Priority Order)
401(k) up to the full employer match. Free money. Skipping it is the single most expensive mistake young investors make.
Max your Roth IRA ($7,500 in 2026 for those under 50). If you're in your 20s or early 30s, your current tax rate is probably lower than your future tax rate.
Go back to the 401(k) and contribute beyond the match, up to $24,500 in 2026.1
Taxable brokerage once the tax-advantaged accounts are maxed.
How a 401(k) Actually Works
A 401(k) is an employer-sponsored plan. You elect a percentage of your paycheck to contribute, and that money goes in before federal income tax (for a traditional 401(k)). You don't pay tax now; you pay tax on withdrawals in retirement.
Pre-tax contributions reduce current taxable income. Earn $150,000, contribute $15,000, and taxable income drops to $135,000. At a 24% marginal rate, that's $3,600 in tax savings this year.
Employer match. Most large employers match a portion of your contributions (commonly 50% up to 6% of salary). If your employer matches $4,500 per year and you skip it, you're turning down a guaranteed 100% return.
Higher contribution limits. The 401(k) limit in 2026 is $24,500 (under 50), far above the $7,500 IRA limit.
How a Roth IRA Actually Works
A Roth IRA is an individual account you open and fund yourself. Contributions are made with after-tax dollars. No tax deduction today, but every dollar of growth inside the account is tax-free in retirement.
Contributions can be withdrawn at any time, tax- and penalty-free. Only earnings are subject to the 59½ rule.
Income limits apply. For 2026, direct contributions phase out between $150,000 to $165,000 (single) and $236,000 to $246,000 (married filing jointly).2
No required minimum distributions. You're never forced to withdraw.
The Tax Treatment Comparison
Traditional 401(k): pay tax later. Deduction now; everything taxed as ordinary income in retirement.
Roth IRA or Roth 401(k): pay tax now. No deduction today; withdrawals in retirement are completely tax-free.
The question is: do you expect your marginal tax rate to be higher now, or higher in retirement? For most people in their 20s and early 30s, the answer is higher in retirement. A 26-year-old earning $90,000 is likely in the 22% bracket. By 55 earning $250,000, they're in the 32% bracket. Paying tax at 22% now to avoid 32% later is a clear win.
2026 Limits and SECURE 2.0 Changes
401(k): $24,500 (under 50). Catch-up for 50+: $8,000. Enhanced catch-up ages 60 to 63: $11,250.
Roth IRA: $7,500 (under 50). Catch-up for 50+: $1,000.
Total 401(k) contributions (employee + employer + after-tax): $70,000.
Roth employer match. Employers can now match 401(k) contributions as Roth dollars.
High earners must make catch-up contributions as Roth. Starting in 2026, if you earned more than $145,000 last year, any age-50+ catch-up must go into Roth.3
The Priority Order Explained
Step 1: 401(k) up to the full match
Contribute enough to capture 100% of the match. An instant, guaranteed return you won't find elsewhere.
Step 2: Max the Roth IRA
Pivot to a Roth IRA until you hit $7,500. Tax-rate arbitrage, greater investment flexibility (your 401(k) has a fixed menu; a Roth IRA at Fidelity, Schwab, or Vanguard gives you the full market), lower fees, and contribution flexibility all favor this step.
Step 3: Back to the 401(k)
Return to the 401(k) and contribute up to the annual limit. For most people early in their earning curve, Roth 401(k) contributions often make more sense. In peak earning years (35%+ bracket), traditional contributions for the deduction become more attractive.
Step 4: Mega backdoor Roth or taxable brokerage
If your plan supports after-tax contributions with in-plan Roth conversions, you can funnel additional dollars up to the $70,000 total plan limit. Otherwise, additional savings go into a taxable brokerage.
When the Priority Order Changes
High current income (35%+ bracket). The immediate deduction from traditional may outweigh long-term Roth growth. Split or lean traditional.
No employer match. Skip step 1 and start directly with the Roth IRA.
Income above Roth IRA limits. Use the backdoor Roth strategy. Watch the pro-rata rule if you have existing traditional IRA balances.
Self-employed. Solo 401(k)s and SEP-IRAs allow significantly higher contributions.
The Bottom Line
The Roth IRA vs 401(k) framing is misleading because the right answer for most young investors is both, in the right order. Capture the full match, max your Roth IRA, then go back to the 401(k).
What matters more than getting the order perfect is actually saving consistently. The difference between a Roth IRA and a traditional 401(k) is marginal; the difference between saving 15% of your income and saving nothing is enormous.
For a broader framework, see our 10-step financial plan guide. And once you have money invested, reviewing your portfolio regularly ensures it's working the way you want it to.
FAQ
Should I contribute to a Roth IRA or 401(k) first?
Contribute to your 401(k) first, but only up to the employer match. Then redirect to a Roth IRA until it's maxed. Then return to the 401(k).
Can I contribute to both a Roth IRA and a 401(k) in the same year?
Yes. The limits are separate: $24,500 to a 401(k) and $7,500 to a Roth IRA in 2026 (under 50, within Roth IRA income limits).
What are the Roth IRA income limits in 2026?
Direct contributions phase out between $150,000 and $165,000 (single) and $236,000 to $246,000 (married filing jointly).
Is a Roth 401(k) better than a traditional 401(k)?
For most investors in their 20s and early 30s, yes. If your current tax rate is lower than your expected retirement rate, paying tax now (Roth) beats paying later (traditional).
What happens if I don't max the employer match?
You leave free money on the table. Missing a $3,600 annual match for 10 years, compounded, is easily $60,000 to $80,000 in lost retirement value.
References
Retirement Topics – 401(k) and Profit-Sharing Plan Contribution Limits — IRS
Roth IRAs — IRS
401(k) Plans — IRS
This article is not personalized financial advice. For personalized guidance tailored to your situation, Astor is an SEC-registered investment advisor that provides personalized recommendations.