Simple definition
A Roth IRA is a retirement account you open yourself. You contribute money you've already paid tax on, it grows without being taxed, and in retirement you withdraw it — contributions and growth — tax-free. There are annual contribution limits and income limits set by the IRS, so eligibility depends on how much you earn.
Why it matters
The Roth's tax-free growth is a rare deal, especially if you expect to be in the same or a higher tax bracket later. Decades of gains come out without a tax bill, and you can withdraw your own contributions anytime without penalty — flexibility most retirement accounts don't offer.
Real-life example
You put $300 a month into a Roth IRA in your thirties. Over the years it grows to a large balance from your after-tax dollars. In retirement, you pull that money out and owe nothing on it — the government already got its cut when you contributed.
Common mistakes
- Assuming you earn too much to contribute without checking the current income limits.
- Leaving the cash sitting uninvested inside the Roth, so it never actually grows.
- Withdrawing earnings early and triggering taxes and a penalty.
- Choosing traditional over Roth without weighing your tax rate now versus later.
Pro tips
- Open one early — the longer the tax-free growth runs, the more it's worth.
- Make sure the money is invested once it's in the account, not left as cash.
- A Roth can double as a backup: your contributions (not earnings) can come out anytime without penalty.
- If your income is low now, a Roth is often especially attractive — you lock in today's low tax rate.
Related MoneyPedia terms
- 401(k)A retirement account through your job, often with an employer match — free money for saving.
- Traditional IRAA retirement account where you often deduct contributions now and pay taxes later when you withdraw the money.
- Contribution LimitThe maximum amount the government lets you put into a retirement account in a single year.
- Compound InterestInterest that earns interest — the engine behind long-term growth.
- Index FundA fund that owns a broad slice of the market at low cost — the backbone of most investing.
Frequently asked questions
What's the difference between a Roth IRA and a 401(k)?
A 401(k) is offered through an employer, often with a match, and is usually funded with pre-tax money. A Roth IRA is one you open yourself with after-tax money, and it grows tax-free. Many people use both.
Can I withdraw from a Roth IRA early?
You can take out your own contributions anytime without tax or penalty. Withdrawing the earnings early, before retirement age and before the account is old enough, can trigger taxes and a penalty.
Who can contribute to a Roth IRA?
Anyone with earned income, up to annual limits, as long as your income is below the IRS thresholds. The exact limits change each year, so check the current figures.
Learn the skill behind it
Sources & references
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Plain-English education — not personalized legal, tax, or investment advice.