Should you pick a Roth or traditional retirement account?
Roth is taxed now and traditional is taxed later, so choose by when you expect your tax rate to be lower.
New to this?
Retirement accounts like a 401(k) or IRA come in two tax versions. Traditional gives you a tax break now and taxes withdrawals later. Roth taxes your money now, then it grows and comes out tax-free in retirement. The better pick depends on your tax bracket, the rate charged on your top dollars of income, now versus later.
Read first
Myth
A Roth is always better because the money comes out tax-free.
Truth
Only if your tax rate is higher later. In the example, 22% now and 22% later leaves $31,654 either way. If your rate drops to 12% later, traditional leaves $35,712.
Worth memorizing
- 1
Roth is taxed now, traditional later.
Roth: no break today, tax-free withdrawals in retirement. Traditional: tax break today, withdrawals taxed as income.
- 2
Equal tax rates give equal results.
In the example, a 22% rate now and later leaves $31,654 either way. At 12% later, traditional leaves $35,712.
- 3
Contribution limits reset each year.
The 2026 IRA limit is $7,500 and the 401(k) limit is $24,500, each combined across Roth and traditional.
If you're early in your career and in the 10% or 12% bracket, I'd lean Roth. Paying tax at a low rate now is a good deal. If you can't decide, split your contributions between both and stop worrying about picking perfectly.
Do this today
Log in to your workplace retirement plan and find two things: your employer's match formula and whether a Roth option exists. If you are not putting in enough to get the full match, raise your contribution to that level now.
Practice
1 of 3
You are in the 12% bracket now and expect a higher rate in retirement. Which usually makes more sense?
With a Roth you pay tax at today's lower rate, and qualified withdrawals later are tax-free.
2 of 3
You put $4,000 of pay toward a Roth and your tax rate is 25%. How much goes into the account?
Tax first: $4,000 × 25% = $1,000, so $4,000 − $1,000 = $3,000 goes in.
3 of 3
Your employer matches 401(k) contributions. What should you do first?
The match is extra pay. Get all of it first, in Roth or traditional, then decide where the next dollar goes.
Tips
Take the full employer match
Put in at least enough to get every matching dollar, in Roth or traditional. The match is extra pay you lose if you skip it.
Lean Roth in a low bracket
Early in your career, Roth locks in today's low rate. If you are in a high bracket now, traditional often comes out ahead.
Split between both account types
Nobody knows future tax rates. Holding some taxed money and some tax-free money gives you choices when you withdraw.
Check Roth IRA income limits
Above certain incomes, Roth IRA contributions shrink to zero. Check the IRS page, or use a Roth 401(k), which has no income limit.
A worked example: $5,000 of pay, Roth or traditional
Jordan, 32, is in the 22% tax bracket and has $5,000 of pay for retirement. Jordan assumes 7% a year for 30 years, only an assumption, and compares what is left to spend.
- Roth: tax comes first, $5,000 × 22% = $1,100, so $3,900 goes in. It grows to about $31,654, all tax-free.
- Traditional: the full $5,000 grows to about $40,582. At 22% in retirement, $8,928 of tax leaves $31,654, the same as Roth.
- At 12% in retirement the tax is $4,870, leaving $35,712. Traditional wins by $4,058. A higher later rate would favor Roth.
- Pay set aside for retirement$5,000
- Income tax now at 22% (Roth only)−$1,100
- Roth contribution=$3,900
- Roth after 30 years, tax-free$31,654
- Traditional after 30 years ($5,000 in)$40,582
- Tax at 22% when withdrawn−$8,928
- Traditional after tax, same rate=$31,654
- Traditional after 30 years ($5,000 in)$40,582
- Tax at 12% when withdrawn−$4,870
- Traditional after tax, lower rate=$35,712
Try your numbers
Reference
What one $5,000 contribution could grow to in 30 years at assumed returns (before any tax on withdrawal)
| Annual return | Balance after 30 years | Of which growth |
|---|---|---|
| 4% | $16,567 | $11,567 |
| 6% | $30,113 | $25,113 |
| 8% | $54,679 | $49,679 |
Common mistakes
Skipping the match while deciding
Some people put off their 401(k) while they research Roth vs traditional. Every month without the match is free money left behind.
Forgetting the income limit
If your income is over the Roth IRA limit and you contribute anyway, the extra is subject to a 6% tax each year it stays in the account. Check the IRS figures before you contribute.
Thinking the account picks your investments
Opening a Roth IRA and moving money in does not invest it. Many accounts hold new money as cash until you choose a fund, so check that it is actually invested.
Going deeper
With a traditional account you skip tax on the money now and pay tax when you take it out in retirement. With a Roth you pay tax now and take the money out tax-free later, so the better pick depends on whether you expect your tax rate to be higher now or in retirement.
Traditional means tax later
Money goes in before income tax (or you deduct it), grows without yearly tax, and is taxed as income when you withdraw it in retirement.
Roth means tax now
Money goes in after income tax. It grows without yearly tax, and qualified withdrawals in retirement are tax-free, growth included.
Same tax rate, same result
If your tax rate is the same when you put money in and when you take it out, both choices leave you with the same spending money. The choice only matters when your rate changes.
Get the full employer match first
If your employer matches 401(k) contributions, put in at least enough to get every matching dollar, in either Roth or traditional. A match is extra pay you lose if you skip it.
Limits are set each year
Right now you can put up to $7,500 into IRAs and $24,500 into a 401(k). People 50 and over can add catch-up amounts of $1,100 for an IRA and $8,000 for a 401(k).
The one difference that matters
Roth and traditional accounts can hold the same investments, like an index fund. The only real difference is when you pay income tax on the money.
With a traditional 401(k), your contribution comes out of your paycheck before income tax, so your taxable pay goes down today. With a traditional IRA, you may be able to deduct the contribution on your tax return. Either way, every dollar you withdraw in retirement is taxed as income.
With a Roth 401(k) or Roth IRA, you get no tax break today. In return, qualified withdrawals in retirement are tax-free, including all the growth. A withdrawal is qualified once you are 59½ and the account has been open at least 5 years, with a few other exceptions.
How to choose between them
Ask yourself whether your tax rate is likely to be lower now or in retirement. If you are early in your career and in a low tax bracket, Roth often makes sense, because you lock in today's low rate on the money. If you are in a high bracket now and expect lower income in retirement, traditional often comes out ahead.
Nobody knows future tax rates, and your income can change a lot over 30 years. Many people split the difference by using both kinds of account. Having some money taxed and some tax-free gives you choices about which to draw from in retirement.
Contribution limits
The current IRA limit is $7,500 in total across all your IRAs, Roth and traditional combined. If you are 50 or older, you can add another $1,100. You need earned income at least equal to what you put in.
The 401(k) limit for your own contributions is $24,500, again combined across Roth and traditional. The catch-up for people 50 and over is $8,000, and people aged 60 to 63 can put in a larger catch-up of $11,250 if their plan allows it. Starting in 2026, if your FICA wages from that employer last year were over $150,000, your catch-up dollars must go in as Roth. Employer matching money does not count toward your own limit.
Roth IRA income limits
Not everyone can put money straight into a Roth IRA. If your income is above a certain level, the amount you can contribute shrinks, and above a higher level it drops to zero. The cutoffs depend on your filing status and change every year, so check the IRS page on Roth IRA contribution amounts for the current figures.
Roth 401(k) accounts do not have these income limits. If your plan offers a Roth option, you can use it at any income. A traditional IRA has no income limit for contributing, but whether you can deduct it depends on your income and whether you or your spouse has a workplace plan.
Getting money out early
These accounts are built for retirement, and taking money out before 59½ usually means income tax plus a 10% additional tax on the taxable part. There are exceptions, so check the IRS rules before you withdraw.
A Roth IRA has one useful difference. The money you put in (not the growth) can be taken out at any time without tax or penalty, because you already paid tax on it. That does not make it an emergency fund, but it is less locked up than a traditional account.
The order to fill accounts
A common order is: contribute to your 401(k) up to the full employer match, then fund an IRA, then go back and add more to the 401(k). Matching money usually goes into the traditional side even if you choose Roth for your own money, though some plans now let you pick.
If you still carry credit card debt at 20% or more, paying it down usually beats investing past the match. A sure 20% saved in interest is hard for any investment to beat.
Questions people ask
Can I have both a Roth IRA and a traditional IRA?
Yes. You can open both, but the yearly IRA limit is shared between them. Anything you put in one reduces what you can put in the other that year.
Can I contribute to a Roth IRA and a 401(k) in the same year?
Yes. The IRA limit and the 401(k) limit are separate. If your income is within the Roth IRA limits, you can use both.
What if I make too much for a Roth IRA?
You can still use a Roth 401(k) if your plan has one, since it has no income limit. Some people also use a method called a backdoor Roth, which has tax rules worth checking with a tax professional first.
Is a Roth 401(k) better than a traditional 401(k) for young people?
Often, because many people earn less early in their careers and pay a lower tax rate. That is not true for everyone. If your income is already high, traditional may save more.
Does my employer match go into the Roth side?
Usually the match goes in pre-tax, into the traditional side, even if your own money goes to Roth. Some plans now offer a Roth match. Your plan documents will say which.
Printable worksheet with answer key, free for classrooms. Lesson plan for this unit.
Sources
- IRS: Traditional and Roth IRAs
- IRS: Roth IRAs
- IRS: Roth comparison chart
- IRS: Retirement topics, IRA contribution limits
- IRS: FAQs on designated Roth accounts
- IRS: Retirement topics, catch-up contributions
- IRS: IRA contribution limit (2026)
Updated October 4, 2026. General education, not personalized financial, tax or legal advice. Figures are examples. Check current rates and limits before you act.
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