A Roth IRA is a type of retirement account, not an investment itself — it's a tax status wrapped around investments you choose inside it, like index funds or individual stocks. The key feature: you contribute money you've already paid taxes on, and in exchange, the growth and eventual withdrawals in retirement are generally tax-free.

Why "already taxed" is actually the advantage

With a traditional retirement account, you get a tax break now but pay taxes on withdrawals later, including on all the growth. With a Roth IRA, you pay taxes now on a smaller amount (your contributions) and owe nothing later on decades of potential growth — assuming the account is used according to the rules. For younger savers with lower current income, this trade-off is often a strong deal.

Contribution limits and income rules

Roth IRAs have annual contribution limits set by the IRS, and eligibility phases out above certain income levels. These figures change yearly, so it's worth checking the current IRS limits directly before contributing rather than relying on an old number.

Check before you contributeSearch "IRS Roth IRA contribution limit" for the current year before opening or funding an account — limits and income phase-out ranges are adjusted annually.

What actually goes inside the account

Opening a Roth IRA and leaving the cash sitting there uninvested is one of the most common beginner mistakes — the account itself doesn't grow on its own. Most beginners choose a low-cost, broadly diversified index fund tracking the total stock market or an S&P 500 fund, since these require no active stock-picking.

A Roth IRA with uninvested cash sitting inside it is just a checking account with extra paperwork.

Withdrawal rules, briefly

Contributions (not earnings) can generally be withdrawn at any time without penalty, since you already paid tax on them. Earnings typically need to stay until age 59½ and the account needs to have been open at least five years to withdraw growth tax- and penalty-free. There are some exceptions, including for a first home purchase, so it's worth reviewing current IRS rules for specifics.

Who this account tends to suit best

Opening one usually takes about fifteen minutes online through a brokerage. The bigger decision isn't which brokerage — it's committing to fund it regularly, even in small amounts.