Roth IRA vs 401(k): Which One Wins for You?

Short answer: Take the 401(k) match first, then usually the Roth IRA, then back to the 401(k). The match is free money no other account can beat, the Roth IRA gives you tax-free growth and tax-free withdrawals in retirement, and the 401(k) wins again once the Roth IRA is full. The real question is which tax rate you pay, now or later: lower in retirement, the traditional 401(k) wins; higher, the Roth IRA wins.

What a 401(k) Is, in Plain Language

A 401(k) is a retirement account you get through your employer. Money comes out of your paycheck before income tax is taken, goes into investments you choose from the plan's menu, and grows without any tax bill along the way. You pay income tax later, when you take the money out in retirement.

The traditional 401(k) is the pre-tax version: earn $72,000, contribute $6,000, and you are taxed as though you earned $66,000. The money grows tax-deferred, and every withdrawal in retirement counts as ordinary income. Many employers also offer a Roth 401(k): after-tax contributions, tax-free growth, and tax-free qualified withdrawals — Roth IRA treatment inside your employer's plan, with no income limit.

The feature that makes the 401(k) special is the employer match. Many employers add money based on what you contribute — a common formula is 50 cents per dollar, up to 6% of pay. That match is an instant return no investment can promise, and it is why the 401(k) always comes first. The match does not count toward your own $24,500 employee limit for 2026; it counts toward the separate $72,000 total limit for employee plus employer contributions.

The trade-offs are real. Investment choices are limited to the funds your employer picked, usually 10 to 30 options. Money out before age 59½ generally means income tax plus a 10% additional tax, with limited exceptions such as leaving your job at 55 or older. Traditional 401(k) money faces required minimum distributions from age 73 (75 for those born in 1960 or later). Roth 401(k) balances no longer face lifetime required minimum distributions — the SECURE 2.0 Act removed them starting in 2024.

What a Roth IRA Is, in Plain Language

A Roth IRA is an individual retirement account you open yourself, at a bank or brokerage, with money you have already paid tax on. There is no tax deduction when the money goes in. In exchange, the money grows tax-free and qualified withdrawals in retirement are completely tax-free — including all the growth.

Because you open it yourself, you choose the provider and get the full menu: stocks, index funds, bonds, exchange-traded funds, almost anything the brokerage offers. There is no employer match, because there is no employer involved. And a Roth IRA has no lifetime required minimum distributions for the original owner.

The Roth IRA has two gates the 401(k) does not. First, the income limit: for 2026 a full contribution needs modified adjusted gross income under $153,000 single or under $242,000 filing jointly, shrinking to zero at $168,000 single or $252,000 joint. Second, the contribution limit itself: $7,500 for 2026 if you are under 50, or $8,600 if you are 50 or older — far below the 401(k)'s $24,500. High earners shut out of direct Roth IRA contributions can still use a Roth 401(k) at work, which has no income limit.

The Roth IRA also has the most flexible early-access rules: your own contributions — not the growth — can be withdrawn at any time, for any reason, with no tax and no penalty. Earnings are different: withdrawing them before age 59½ and before the account has been open five years generally triggers income tax plus the 10% additional tax, with exceptions such as a first-home purchase of up to $10,000.

Roth IRA vs 401(k): Side by Side

Here is the full comparison. Read the tax-treatment row first — it drives almost every other difference.

Feature	Roth IRA	Traditional 401(k)
Tax on contributions	After-tax; no deduction	Pre-tax; lowers taxable income now
Tax on withdrawals	Tax-free, if qualified	Taxed as ordinary income
2026 limit (under 50)	$7,500	$24,500
2026 catch-up (50+)	$1,100 (total $8,600)	$8,000 (total $32,500)
Super catch-up (60–63)	Not available	$11,250 (total $35,750)
Total incl. employer money	Not applicable	$72,000 for 2026
Employer match	None	Often offered
Income limits	Phases out $153,000–$168,000 single, $242,000–$252,000 joint	None
Early access	Contributions out anytime, tax-free	Before 59½, generally taxed plus 10% extra
Loans	Not available	Many plans allow borrowing
Required minimum distributions	None in the owner's lifetime	From age 73 (75 if born 1960 or later)
Investment choice	Almost anything	The employer's fund menu
Who can open it	Anyone with earned income	Only through an employer plan

One row deserves a second look: the income limit. Above the Roth IRA phase-out, the 401(k) is your main vehicle, and the Roth 401(k) option gives you Roth tax treatment without any income test. Below the phase-out you have a genuine choice — the worked example below shows how to make it.

The 2026 Contribution Limits, Verified

The IRS announced the 2026 limits in November 2025: the 401(k) employee limit rises to $24,500, up $1,000 from $23,500 in 2025, and the IRA limit rises to $7,500, up from $7,000. The catch-up for workers 50 and older rises to $8,000 for 401(k) plans and $1,100 for IRAs. The super catch-up of $11,250 for workers aged 60 to 63 is unchanged.

Limit for 2026	2025	2026
401(k) employee elective deferral	$23,500	$24,500
401(k) catch-up, age 50+	$7,500	$8,000
401(k) total, age 50+	$31,000	$32,500
401(k) super catch-up, ages 60–63	$11,250	$11,250
401(k) total, ages 60–63	$35,750	$35,750
401(k) total incl. employer contributions	$70,000	$72,000
IRA limit (traditional and Roth combined)	$7,000	$7,500
IRA catch-up, age 50+	$1,000	$1,100
IRA total, age 50+	$8,000	$8,600

The 2026 Roth IRA phase-outs are $153,000 to $168,000 of modified adjusted gross income for single filers and heads of household, and $242,000 to $252,000 for married couples filing jointly. Below the range you can contribute the full amount; inside it the amount shrinks; at or above the top you cannot contribute directly. Married filing separately is the harsh case: if you lived with your spouse at any time during the year, the phase-out runs from $0 to $10,000. Source: IRS Notice 2025-67.

One new rule takes effect in 2026: if your wages from the employer sponsoring your plan were more than $150,000 in 2025, your 401(k) catch-up contributions in 2026 must go into a Roth account rather than pre-tax, under the SECURE 2.0 Act.

The Worked Example: $500 a Month for 30 Years

Here is the arithmetic. A saver puts $500 a month — $6,000 a year — into either account for 30 years, earning an illustrative 7% a year, compounded monthly, with no fees and no withdrawals. The 7% figure is an assumption for illustration, not a forecast: real returns vary and no investment guarantees 7%.

The gross result is identical in both accounts: tax treatment does not change the growth, only what you keep. After 30 years the balance is $609,986 — $180,000 of contributions and $429,986 of growth. After 10 years it would be $86,542; after 20 years, $260,463. Compounding does most of its work late.

Now the tax bill. The Roth IRA saver paid tax on the $500 each month as it went in, so the whole $609,986 comes out tax-free. The traditional 401(k) saver got a tax break on the way in, so the whole $609,986 is taxed on the way out — what they keep depends entirely on their tax rate in retirement:

Retirement tax rate	Roth IRA keeps	Traditional 401(k) keeps	Roth advantage
12%	$609,986	$536,787	$73,198
22%	$609,986	$475,789	$134,197
32%	$609,986	$414,790	$195,195

At a 22% retirement tax rate the Roth IRA keeps $134,197 more of the same $609,986 pot; at 32% the gap widens to $195,195. But the traditional 401(k) saver also paid less tax during those 30 working years: a $500 monthly pre-tax contribution at a 22% rate costs only $390 of take-home pay, while the Roth contribution costs the full $500. So the honest comparison is same take-home cost, not same contribution: $500 a month after tax into a Roth IRA equals about $641 a month pre-tax into a 401(k), and at equal tax rates in and out both paths end with exactly the same after-tax money — $609,986. The accounts tie when your tax rate never changes.

That is the decision in one sentence: expect a higher rate in retirement, favor the Roth; expect a lower one, favor the traditional 401(k). Young workers with decades of raises ahead usually face higher future rates — Roth territory. Peak earners who expect a lower income in retirement usually benefit more from the traditional 401(k) deduction.

The Employer Match Changes Everything

Everything above assumed you save alone. A match breaks the tie before tax rates even enter the picture, because it is money you never had to earn or contribute. Take a worker earning $72,000 a year whose employer matches 50% of contributions up to 6% of pay — a typical formula used here as an example. Contributing 6% means $4,320 a year from the worker's paycheck, and the employer adds $2,160 a year, or $180 a month, on top.

With the match included, $500 a month from the worker plus $180 a month from the employer, at the same illustrative 7%, grows to $829,580 instead of $609,986. After a 22% tax bill on withdrawal, the saver keeps $647,073 — more than the Roth IRA's $609,986, even though the Roth pays no tax at all.

That is why the funding order starts with the match and never skips it: contributing less than the full match threshold is turning down part of your pay. If money is tight, contribute exactly enough to get the full match, then put the next dollars into the Roth IRA. Only after the Roth IRA is full — $7,500 for 2026 — does it make sense to raise the 401(k) above the match level, up to $24,500. The exception is a high earner above the Roth IRA income limits: then the extra dollars go straight into the 401(k), ideally the Roth 401(k).

More on each account: Roth IRA vs Traditional IRA, How to Calculate 401(k) Growth and How to Calculate Roth IRA Growth.

Which One Should You Pick?

Use your current tax bracket and your expected retirement bracket as the compass.

Your situation	Best first move	Why
Early career, low bracket	Roth IRA (after the match)	Little tax now; tax-free growth for decades
Peak earnings, high bracket	Traditional 401(k)	The deduction is worth more now
Employer offers a match	401(k) up to the full match, always	An instant 50–100% return
Income above the Roth IRA limits	Roth 401(k), or traditional 401(k)	The Roth 401(k) has no income limit
Self-employed or no employer plan	Roth IRA, then a SEP IRA or solo 401(k)	Open to anyone with earned income
Want access to contributions before retirement	Roth IRA	Your contributions come out anytime, tax- and penalty-free
Want the biggest contribution room	401(k)	$24,500 vs $7,500 a year
Expect a large inheritance or pension in retirement	Roth IRA or Roth 401(k)	Extra income pushes your bracket up

When in doubt, split the difference. Many savers hold both: pre-tax money in the 401(k) and after-tax money in the Roth IRA. In retirement you can draw from the traditional account up to the top of a low bracket, then take the rest tax-free from the Roth.

Can You Have Both, and What Order Should You Fund Them?

Yes. The IRS limits apply separately: the $24,500 401(k) limit and the $7,500 IRA limit do not share room. The only shared limit is inside the IRA family — the $7,500 covers your traditional and Roth IRAs combined.

The funding order most savers should follow is the same order this article opened with:

1. Contribute to the 401(k) up to the full employer match. Never leave match money unclaimed.

2. Max out the Roth IRA. For 2026 that is $7,500, or $8,600 from age 50.

3. Go back to the 401(k) and raise contributions toward $24,500. This is where the bigger contribution room pays off.

4. Consider a taxable brokerage account only after the tax-advantaged accounts are full. Tax-advantaged room is use-it-or-lose-it each year.

One practical note: you can contribute to a Roth IRA for 2026 right up to the tax filing deadline in April 2027, but 401(k) contributions must come from your paychecks during the calendar year.

Common Mistakes to Avoid

Skipping the match to fund a Roth IRA first. No tax advantage beats an employer match. Fund the match first, every time.

Assuming Roth always wins. It does not. A saver in the 32% bracket today who retires in the 12% bracket paid far more tax going Roth than going traditional.

Contributing to a Roth IRA above the income limits. An excess contribution is taxed at 6% a year until it is removed, so check your modified adjusted gross income against the $153,000–$168,000 single or $242,000–$252,000 joint phase-outs before you contribute — or use the Roth 401(k) at work instead.

Cashing out a 401(k) when changing jobs. Rolling an old 401(k) into a new plan or an IRA keeps the money growing tax-deferred. Cashing it out before 59½ usually means income tax plus the 10% additional tax.

Ignoring required minimum distributions. Traditional 401(k) money must start coming out at 73, and every dollar is taxed. Large traditional balances can push retirees into higher brackets.

Frequently Asked Questions

Is a Roth IRA better than a 401(k)?

Neither is better in general — it depends on your tax rates. A Roth IRA wins if your rate in retirement will be higher than today; a traditional 401(k) wins if it will be lower. Always take the full 401(k) match first.

Can I contribute to 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 IRAs for 2026, plus catch-ups from age 50. The only shared limit is within IRAs — the $7,500 covers traditional and Roth IRAs combined.

What is the 2026 Roth IRA income limit?

For 2026 a full Roth IRA contribution needs modified adjusted gross income under $153,000 filing single or under $242,000 filing jointly. The amount shrinks between $153,000 and $168,000 single, or $242,000 and $252,000 joint, and stops at or above the top. Source: IRS Notice 2025-67.

How much should I put in my 401(k) to get the full match?

It depends on your employer's formula — check your plan documents or HR portal. With a common 50% match on the first 6% of pay, you must contribute 6% of your salary: on $72,000, that is $4,320 a year from you and $2,160 from your employer.

Can I withdraw my Roth IRA contributions early?

Yes. Money you contributed can be withdrawn at any time, for any reason, with no tax and no penalty. Earnings are different: withdrawing them before age 59½ and before the five-year rule is met generally triggers income tax plus a 10% additional tax.

Do Roth IRAs have required minimum distributions?

No — not during the original owner's lifetime. A traditional 401(k) starts required minimum distributions at age 73 (75 for those born in 1960 or later), and since 2024 Roth 401(k) accounts are also free of them under the SECURE 2.0 Act.

Sources: IRS, "401(k) limit increases to $24,500 for 2026, IRA limit increases to $7,500" (news release, November 13, 2025); IRS Notice 2025-67, "2026 Amounts Relating to Retirement Plans and IRAs, as Adjusted for Changes in Cost-of-Living"; IRS Publication 590-A, Contributions to Individual Retirement Arrangements (IRAs); IRS Publication 590-B, Distributions from Individual Retirement Arrangements (IRAs). All figures verified November 13, 2026.

This article is for education only and is not financial advice. The right choice depends on your income, your employer's plan and your full tax picture — consider speaking with a qualified tax professional before making large contribution or conversion decisions.