Roth IRA | Glossary

A Roth IRA is a personal retirement account funded with after-tax dollars where growth compounds completely tax-free and qualified withdrawals in retirement owe nothing. The IRS limits who can contribute by income, which is the price of the envelope.

US Retirement AccountsLast reviewed 2026-10-05

What it is

A Roth IRA is an individual retirement account funded with money you have already paid tax on, opened at any brokerage, with a $7,500 contribution limit in 2026 (plus a $1,100 catch-up from age 50). The trade is upfront: no deduction now. In exchange, the growth compounds with no tax ever, no annual bill on dividends or gains, and no tax on qualified withdrawals after 59½ once the account has been open five years. Income limits apply: in 2026 the ability to contribute phases out between $153,000 and $168,000 single and $242,000 to $252,000 joint, per the IRS. Above those lines, the backdoor Roth is the standard workaround.

The account has one more structural gift: no required minimum distributions during the owner's lifetime. That makes the Roth the natural estate-planning envelope, and it lets the compounding run as long as the owner lives. Contributions (not earnings) can be withdrawn at any time, tax and penalty free, which is a flexibility the 401(k) does not offer.

Key takeaways

Contributions are after tax; qualified withdrawals after 59½ owe nothing, ever.
The 2026 contribution limit is $7,500; the income phase-out runs $153,000 to $168,000 single.
No required minimum distributions in the owner's lifetime; the account can pass to heirs.
Contributions (not earnings) can be withdrawn anytime, tax and penalty free.
Above the income limits, the backdoor Roth is the standard workaround.

How it works

Fund the account with earned income up to the limit; the contribution is after tax, so there is no deduction and no Form 8606 basis to track. The money invests exactly like any brokerage account, but the IRS never touches the growth: dividends reinvest untaxed, rebalancing triggers no capital gains, and decades of compounding accrue without an annual tax bill.

Withdrawals follow the IRS ordering rules. Contributions come out first, at any time, tax and penalty free; earnings come out tax-free after 59½ provided the account has been open five years. The five-year clock starts January 1 of the first contribution year, and the age clock is a separate test; both must pass for earnings to be qualified. Conversions carry their own five-year clocks for penalty purposes before 59½, and inherited Roth IRAs are subject to the 10-year rule for most non-spouse heirs.

The tax arithmetic is the mechanism that matters. To contribute $7,500 after tax at a 22% bracket costs $9,615 of gross salary, while a traditional $7,500 deduction saves $1,650 now. If both accounts compound identically to the same balance, the comparison is your marginal rate now versus your rate in retirement, plus the Roth's freedom from RMDs.

Why it matters

The Roth matters because it removes the largest recurring cost in a taxable or traditional account: the tax on growth. A $7,500 annual contribution compounding at 7% grows to roughly $708,000 over 30 years; in a traditional account every dollar of that is taxable on withdrawal, at whatever rate applies then. In the Roth, none of it is. The income limits are the gate, and they bind earlier than most people expect, which is why the backdoor conversion exists.

I watched a colleague named Brent (yes, that Brent) withdraw $30,000 for a wedding at 38, including roughly $18,000 of earnings, and budget for the tax he assumed was owed. The earnings portion owed income tax plus the 10% penalty, roughly $6,100 at a 24% bracket, and the bill arrived with the 1099 the following February. The contributions would have been free; the earnings were not.

The highest-leverage thing most Americans can do is fund the Roth early in the career while the bracket is cheap, automate the contributions, and let the tax-free compounding run. Model the trade with the roth ira calculator or the taxable vs deferred calculator.

Real-world examples

$7,500 a year for 30 years, compounding tax-free

Funding $7,500 annually at 7% grows the account to roughly $708,000 over 30 years, every dollar of it tax-free after 59½. The same balance in a traditional account owes ordinary income tax on withdrawal: at a 24% rate, roughly $170,000 of tax leaves $538,000. The Roth envelope is worth about $170,000 at that retirement rate, before counting the RMD freedom. No state or federal tax touches any dollar of it, which is why the account outranks the taxable equivalent at every rate above zero.

The equal-cost comparison: 22% now versus 24% then

Spend $9,615 of gross salary either way: the Roth buys $7,500 of contributions, the traditional buys $9,615 pre-tax. Compounded identically, the traditional account ends at roughly $908,000 before tax, $690,000 after a 24% retirement rate, against the Roth's $708,000 untaxed. At equal cost, the Roth wins whenever your retirement rate exceeds your current rate, and loses below it. The arithmetic is symmetric: deduct at 32% and retire at 24%, and the traditional wins instead.

The ordering rules: contributions out, earnings stay

Four years of contributions total $30,000 of basis; the account is worth $36,000. Withdrawing $31,000 at 38 takes $30,000 of contributions tax and penalty free, plus $1,000 of earnings that owe a 24% rate plus the 10% penalty, roughly $340. The flexibility is real, and it is capped at the contributions. The ordering rules always take contributions first, which is what makes the flexibility dependable.

Common mistakes

Mistake: Assuming the income limits are permanent walls.

Why it bites you: They phase out rather than end, and the backdoor Roth restores access above $252,000 joint. The only costs are paperwork and the pro-rata rule on pre-tax IRA money.

Mistake: Withdrawing earnings before 59½ without an exception.

Why it bites you: Tax plus the 10% penalty on $18,000 of earnings at a 24% bracket is roughly $6,100, which is Brent's wedding withdrawal measured honestly.

Mistake: Forgetting the five-year clock on earnings.

Why it bites you: Earnings withdrawn after 59½ but before the account has been open five years are taxable income, though not penalized. The clock starts January 1 of the first contribution year, and the IRS tracks it regardless of brokerage changes.

Mistake: Leaving the Roth empty while funding lower-value accounts.

Why it bites you: Tax-free compounding and RMD freedom outrank most taxable brokerage dollars; a $708,000 taxable equivalent owes tax on every dividend and gain along the way, year after year.

Ivy's take

I ran the traditional-versus-Roth arithmetic through thirty bracket-and-return scenarios so you don't have to, and the pattern is consistent: the Roth wins for anyone early in a career, anyone expecting a higher bracket later, and anyone who wants contributions-out-anytime flexibility. It loses mainly at peak-earning deductions, and the backdoor version restores most of that.

The tax-free compounding is not a gimmick; it is the IRS saying, in writing, that it will never touch this account's growth. I have watched Brent discover the contributions-out rule in an emergency and describe it as the best feature in finance, and I would rank it top three at minimum. The account costs a bracket today. The compounding costs nothing, forever.

Related jargon, defined

Backdoor Roth: A nondeductible traditional contribution converted to Roth, for income above the limits.
Five-year rule: Earnings are qualified only after the account has been open five years.
Basis: Money you already paid tax on; comes back out tax-free.
Ordering rules: The IRS sequence for withdrawals: contributions first, then conversions, then earnings.
Required minimum distribution: The mandatory withdrawal starting at 73; the Roth has none in the owner's lifetime.
Mega backdoor Roth: After-tax 401(k) contributions converted to Roth, where the plan allows it.

Frequently asked questions

Can I withdraw from a Roth IRA before retirement?+

Contributions anytime, tax and penalty free; earnings only after 59½ or an exception, plus the five-year clock. The ordering rules always take contributions first.

What happens if my income exceeds the limit?+

You cannot contribute directly that year; the backdoor Roth is the standard route. Watch the pro-rata rule if you hold pre-tax IRA money anywhere.

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

Different envelopes: the 401(k) deducts now, caps at $24,500 for 2026, and usually carries a match; the Roth compounds tax-free at $7,500. Most savers capture the match first, then fund the Roth.

Do Roth IRAs have required minimum distributions?+

Not during the owner's lifetime. Heirs inherit the tax-free status, though most non-spouse beneficiaries face the 10-year withdrawal rule.

Does the five-year rule apply to everyone?+

Yes: earnings are qualified only after the account has been open five years and the owner is 59½ or an exception applies. The clock starts January 1 of the first contribution year.

Disclaimer: This information is general in nature and does not constitute financial or legal advice. Always consult a qualified professional for your specific situation.

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