What a Traditional IRA and a Roth IRA Actually Are

A Traditional IRA is an individual retirement account you fund yourself, outside of any employer. If you qualify, your contribution reduces your taxable income for the year — that’s the deduction. The money then grows tax-deferred, meaning you don’t owe anything on the growth year to year, but the entire withdrawal is taxed as ordinary income when it eventually comes out.

A Roth IRA works in reverse. You contribute money you’ve already paid income tax on — there’s no deduction. In exchange, the account grows completely tax-free, and a qualified withdrawal in retirement owes nothing at all, not even on the decades of growth.

Both are separate from a workplace 401(k). A 401(k) is opened through your employer, often comes with a matching contribution, and has its own, much higher, annual limit. An IRA is opened on your own at a bank or brokerage, has no employer match, and its contribution limit is entirely separate from whatever you put into a 401(k).

According to the IRS’s overview of Roth IRAs, a “qualified distribution” — the kind that comes out completely tax-free — generally requires the account to have been open at least five years and for you to meet a condition such as reaching age 59½. We cover exactly how that works, and a second five-year rule most articles miss entirely, in the five-year rule section below.

The One Question That Decides It: Your Tax Rate Now vs. Later

Strip away the marketing and the whole debate collapses into one comparison: is your marginal tax rate higher today, or will it be higher when you actually withdraw the money?

If your rate is higher now, the Traditional deduction is worth more than the tax-free treatment you’d get later — you’re taking the break while it’s expensive to skip. If your rate will be higher later, or you’re early enough in your career that today’s rate is likely the lowest you’ll ever pay, the Roth’s tax-free withdrawals become the more valuable side of the trade. And if the two rates turn out to be identical, the two accounts produce, dollar for dollar, the same result — paying tax before you invest or after you withdraw doesn’t matter when the rate itself doesn’t change.

Nobody can know their future tax rate with certainty — income changes, and so does tax law. That uncertainty is a legitimate reason to hold both account types rather than betting everything on one guess; it’s sometimes called tax diversification. The sections below, and the calculator in particular, are built to help you reason about the trade-off rather than guess at it.

If You’re Young or Early in Your Career

This is the single clearest case for a Roth. Someone early in their career is often sitting in one of the lowest marginal tax brackets they’ll ever see, with decades of growth still ahead of them. Paying tax now, at a low rate, on contributions that will compound for thirty-plus years tax-free tends to beat deferring that tax to a future where both your income and the rate on it are likely to be higher. It isn’t a guarantee — nobody can promise future tax rates — but it’s the strongest version of the Roth argument.

Run Your Own Numbers: Roth vs. Traditional Calculator

Instead of arguing about which account is “better” in the abstract, put your own numbers in. The calculator below compares the after-tax value of each account at retirement, and shows the break-even retirement tax rate — the single number that actually answers the question for your situation.

That break-even number is the real answer: it’s the retirement tax rate at which the Traditional and the Roth produce exactly the same after-tax outcome, given your inputs. If you check the reinvest box, the break-even is simply your current tax rate — a clean way of confirming the classic rule that the two accounts tie when your tax rate doesn’t change. Leave the box unchecked, and you’re comparing the Roth against a Traditional IRA whose tax savings get spent rather than invested, which is why the honest comparison depends on that one checkbox.

Who Can Actually Contribute to Each One?

Anyone with earned income can generally contribute to a Traditional IRA — but the deduction is not automatic. If you, or your spouse, are covered by a retirement plan at work, the deduction phases out above certain income thresholds, per IRS Publication 590-A. If neither of you is covered by a workplace plan, the deduction generally isn’t limited by income at all. “A Traditional IRA gives you a tax break” is only conditionally true, and it’s the detail most competing articles skip.

Roth IRA contributions are limited directly by your modified adjusted gross income (MAGI) and filing status, phasing out to zero above a threshold that’s adjusted annually — see the dated figures section for this year’s exact numbers.

Either way, you need earned income to contribute at all — investment income, Social Security, and unemployment benefits don’t count. A spousal IRA is the exception that makes this workable for one-income households: a non-working spouse can contribute based on the working spouse’s earned income, as long as you file a joint return.

If your income is above the Roth limit, a backdoor Roth is a widely used route: contribute to a Traditional IRA, then convert it to a Roth. It’s important to understand this is a conversion, not a loophole around the contribution limit, and it’s reported on IRS Form 8606. The catch is the pro-rata rule: if you already hold other pre-tax Traditional IRA balances, the IRS generally won’t let you convert only the after-tax portion tax-free — the conversion is treated proportionally across all your Traditional IRA money. If you’re weighing this route because your income is too high for a direct Roth contribution, it’s also worth knowing that a 529 to Roth IRA Rollover: Rules, Limits and Steps is a separate, income-limit-free path into a Roth for money already sitting in a 529 education account.

The Five-Year Rule (There Are Actually Two)

Almost every explanation of “the Roth five-year rule” talks about only one clock. There are actually two, they apply to different money, and they have different consequences if you’re inside them, per IRS Publication 590-B.

The contribution clock governs whether the earnings in your Roth IRA come out tax-free. It starts on the first day of the tax year of your very first contribution to any Roth IRA, and it does not restart when you open a new Roth account somewhere else. For earnings to be a qualified, tax-free distribution, this five-tax-year clock generally has to be satisfied and you need to meet a separate condition, such as reaching age 59½.

The conversion clock is entirely different. Each amount you convert from a Traditional IRA to a Roth starts its own, separate five-year clock, and it exists for a different reason: to determine whether the 10% additional tax applies if you withdraw that specific converted amount before age 59½. Convert money in three different years, and you have three separate five-year clocks running.

Getting Your Money Out: Withdrawals and Penalties

Roth IRA distributions come out in a fixed order set by the IRS: your contributions first, then any converted amounts, and only after both of those are exhausted, your earnings.

Traditional IRA withdrawals are a different story: the entire amount is taxed as ordinary income when it comes out, and if you’re under age 59½, it’s generally also subject to an additional 10% tax on top of that. The IRS carves out a defined list of exceptions to that extra 10% — a few common ones are certain qualified higher-education expenses, up to $10,000 for a first-time home purchase, and a permanent disability. There are others, but this isn’t an exhaustive list — check IRS Publication 590-B for the complete set before relying on one.

Can You Have Both? (And Where an IRA Fits Next to a 401(k))

Yes — you can hold and fund both a Traditional and a Roth IRA in the same year, as long as your combined contributions across both stay within the single annual limit and you separately meet each account’s eligibility rules.

A common approach, not a hard rule, is to capture any employer match in a 401(k) first, since that’s an immediate return you can’t get elsewhere, then fund an IRA for the flexibility and investment choice it offers, then return to the 401(k) with any money left to save.

The required-withdrawal rules are one of the bigger planning differences between the two IRA types: a Traditional IRA requires you to start taking withdrawals at the applicable age, while a Roth IRA has no required withdrawals during the original owner’s lifetime. For the ages, tables, and how to plan around them, see RMD 2026: Age, Tables, and How to Avoid the Taxes.

If you’re self-employed or run a small business, note that SEP and SIMPLE IRAs also exist as employer-based retirement accounts — they’re a different setup from the personal Traditional and Roth IRAs covered here.

What About Converting a Traditional IRA to a Roth?

A Roth conversion is when you move money from a Traditional IRA into a Roth IRA. Unlike a contribution, there’s no income limit on who can do it. But it comes with one consequence people frequently search for a way around: converting pre-tax money is a taxable event, full stop.

Conversions carry their own strategic considerations and deadlines — this is a deliberately short overview, and a dedicated conversion guide is where those details belong.

This Year’s Contribution Limits

For 2026, the combined annual limit across your Traditional and Roth IRAs is $7,500 if you’re under age 50, or $8,600 if you’re 50 or older (a $1,100 catch-up), verified against the IRS’s November 2025 cost-of-living adjustment announcement for 2026. Income phase-out ranges for both the Roth contribution limit and the Traditional deduction also increased for 2026 and are adjusted every year.

For the full breakdown of this year’s dollar limits and every income phase-out range by filing status, see Roth IRA Contribution Limits 2026.

IRAs themselves are opened at banks, brokerages, and robo-advisors. The account type — and every rule on this page — is identical everywhere; what differs between providers is fees and the investment menu.

Frequently Asked Questions

What’s the difference between a Roth IRA and a Traditional IRA?

A Traditional IRA is generally funded with pre-tax money that grows tax-deferred and is taxed as ordinary income when you withdraw it. A Roth IRA is funded with money you’ve already paid tax on, so qualified withdrawals in retirement are tax-free. Same shelter, opposite ends of the tax bill.

Which one is better if I’m young and early in my career?

Many early-career savers are in the lowest tax bracket they’ll ever be in, which is exactly the situation where paying tax now, with a Roth, tends to cost less than paying it later. It isn’t guaranteed, since income and tax law can both change, but it’s the classic case for the Roth.

Can I contribute to both in the same year?

Yes, as long as your combined contributions to both accounts stay within the annual limit and you meet each account’s own eligibility rules.

Is a Traditional IRA contribution always tax-deductible?

No. If neither you nor your spouse is covered by a workplace retirement plan, it generally is. If either of you is covered, the deduction phases out above certain income thresholds.

What is the Roth IRA five-year rule?

It’s actually two separate rules: one tracks how long your Roth has been open, for your earnings to come out tax-free, and the other tracks each individual conversion separately, for penalty purposes. See the five-year rule section above for both.

Can I withdraw money from a Roth IRA before retirement?

Your own contributions, yes, anytime, tax- and penalty-free, because you already paid tax on them. It’s the earnings portion that has conditions attached.

What happens if I take money out of a Traditional IRA early?

The withdrawal is taxed as ordinary income, and if you’re under 59½, it’s generally also hit with an additional 10% tax, unless you qualify for one of a defined set of exceptions.

Do I have to take money out of a Roth IRA in retirement?

Not during your lifetime as the original owner. A Traditional IRA does require withdrawals starting at the applicable age.

What can I do if I earn too much for a Roth IRA?

Some people use a backdoor Roth: contributing to a Traditional IRA, then converting it. It’s a taxable conversion, not a workaround, and the pro-rata rule can complicate it if you already hold pre-tax IRA money.

Is converting a Traditional IRA to a Roth taxable?

Generally, yes. The pre-tax portion you convert is included in your income for that year. “Converting without paying taxes” is mostly not realistic once you already have existing pre-tax IRA balances.

Does an IRA replace my 401(k)?

No, they’re separate accounts with separate limits. Many people fund both, often prioritizing an employer match in the 401(k) first.

How much can I contribute this year?

See the contribution limits section above for this year’s verified, dated figures — they change annually, so don’t rely on a number you saw somewhere else without checking the date.