A Roth IRA lets you save for retirement with after-tax money, then withdraw it tax-free in retirement

A Roth IRA is a retirement savings account where you contribute money you have already paid income tax on. The account grows over time, and when you reach retirement age, you can withdraw both the money you put in and the growth it earned without paying tax on any of it. This is the opposite of a traditional IRA, where contributions may be tax-deductible now but withdrawals are taxed later.

The trade-off is simple: you pay tax on the money going in, but the government does not tax you on the way out. This makes a Roth IRA useful if you expect to be in a higher tax bracket in retirement, or if you simply want the certainty of knowing exactly what you will owe in taxes when you retire.

Key Takeaways

  • You contribute after-tax dollars to a Roth IRA, meaning you do not get a tax deduction for the contribution in the year you make it.
  • All growth inside the account—dividends, interest, capital gains—is never taxed, as long as you follow the withdrawal rules.
  • You can withdraw the money you contributed (your basis) at any time without penalty, but earnings have age and holding-period restrictions.
  • Income limits determine whether you can contribute to a Roth IRA directly; higher earners may use a backdoor Roth strategy instead.
  • Roth IRAs have no required minimum distributions during your lifetime, so the account can keep growing even after you reach retirement age.

How contributions and growth work in a Roth IRA

When you put money into a Roth IRA, you are using money that has already been taxed as income. You do not get to deduct that contribution from your taxes in the year you make it. The IRS knows exactly how much you put in because you report it on your tax return.

Once the money is in the account, it can be invested in stocks, bonds, mutual funds, or other securities. Any earnings—dividends, interest, or capital gains—grow inside the account without being taxed each year. This is called tax-free growth. A stock that doubles in value inside a Roth IRA does not trigger a capital gains tax. A bond that pays interest does not create taxable income. That growth stays sheltered as long as the money remains in the account.

This is why time matters so much with a Roth IRA. The longer money sits in the account, the more it can grow, and all of that growth is tax-free. A 25-year-old who opens a Roth IRA and leaves it untouched for 40 years will have far more tax-free growth than a 55-year-old who opens one now.

Withdrawal rules: when you can take money out

The rules for withdrawals depend on whether you are taking out contributions or earnings, and how old you are.

Contributions (the money you put in) can be withdrawn at any time, at any age, without penalty or tax. The IRS calls this your basis. Because you already paid tax on this money, taking it out does not create a tax bill. This is one reason people sometimes use a Roth IRA as an emergency fund, though that defeats the purpose of long-term retirement savings.

Earnings (the growth inside the account) have stricter rules. To withdraw earnings tax-free, you must be at least 59½ years old and have held the Roth IRA for at least five tax years. If you withdraw earnings before 59½, you owe income tax on them plus a 10 percent penalty. There are a few exceptions—first-time home purchase (up to $10,000 lifetime), disability, and a few others—but they are narrow.

The five-year rule applies to the Roth IRA itself, not to each contribution. If you opened your first Roth IRA in 2020, all Roth IRAs you own satisfy the five-year rule starting in 2025, even if you opened another one in 2023.

Income limits and who can contribute

The IRS limits who can contribute directly to a Roth IRA based on your income. These limits change each year and depend on your filing status (single, married filing jointly, etc.). If your income exceeds the limit for your status, you cannot contribute directly to a Roth IRA that year.

The limits vary by year and filing status, so you will need to check the current year's limits on the IRS website or with a tax preparer. The income thresholds are designed to phase out Roth contributions for higher earners.

If your income is too high to contribute directly, you may be able to use a backdoor Roth strategy. This involves contributing to a traditional IRA (which has no income limit) and then converting it to a Roth IRA. This is legal but has tax implications if you already have other traditional IRAs, so it is worth discussing with a tax professional before you do it.

Roth IRAs versus traditional IRAs

The main difference is when you pay tax. With a traditional IRA, you may deduct contributions from your income in the year you make them, lowering your tax bill that year. But withdrawals in retirement are taxed as ordinary income. With a Roth IRA, you get no deduction now, but withdrawals are tax-free later.

A traditional IRA requires you to start taking withdrawals at age 73 (as of 2023; this age increases over time). These are called required minimum distributions (RMDs). A Roth IRA has no RMD requirement during your lifetime. This means you can leave the money untouched and let it keep growing tax-free for as long as you live. Your heirs will inherit it, though they will have their own withdrawal rules.

Which one makes sense depends on your current tax bracket, your expected retirement tax bracket, and how long you plan to let the money grow. Someone in a low tax bracket now might prefer a Roth. Someone in a high bracket now who expects to be in a lower bracket in retirement might prefer a traditional IRA.

Contribution limits and annual maximums

The IRS sets an annual limit on how much you can contribute to a Roth IRA. This limit applies to the total of all your IRAs combined—traditional and Roth together. If you max out a traditional IRA, you cannot also max out a Roth IRA in the same year.

The contribution limit changes most years. You can find the current year's limit on the IRS website. If you are 50 or older, you can make an additional catch-up contribution, which is a smaller amount on top of the regular limit. This is designed to help people who started saving late to catch up before retirement.

If you contribute more than the limit in a given year, the IRS charges a 6 percent penalty tax on the excess each year it remains in the account. It is worth staying within the limit or correcting an overage quickly.

How a Roth IRA fits into retirement planning

A Roth IRA is one tool among several for retirement savings. Many people use both a Roth IRA and a traditional IRA, or a Roth IRA and a 401(k) through their employer. The combination lets you have some money that is taxed now and some that is taxed later, which gives you flexibility in retirement.

Because Roth IRAs have no RMD requirement and offer tax-free growth, they are often used as a long-term wealth-building tool. If you have decades until retirement, a Roth IRA can accumulate substantial tax-free growth. If you are closer to retirement, a Roth IRA can still be useful, but the time for growth is shorter.

The key is to start early and contribute consistently. Even small contributions add up over time, especially with tax-free growth. A Roth IRA opened at 25 with modest annual contributions will likely have far more in it by retirement than one opened at 55, even if the 55-year-old contributes more each year.

Frequently Asked Questions

Can I withdraw my contributions from a Roth IRA without penalty?

Yes. You can withdraw the money you contributed (your basis) at any time, at any age, without tax or penalty. The restriction applies only to earnings. Because you already paid tax on contributions, the IRS does not tax you again when you take them out.

What happens if I withdraw earnings before age 59½?

You owe income tax on the earnings plus a 10 percent early withdrawal penalty. There are exceptions for first-time home purchase (up to $10,000 lifetime), disability, and a few other situations, but they are limited. Check the IRS rules or speak with a tax professional about your specific situation.

Do I have to take money out of my Roth IRA at retirement?

No. Unlike a traditional IRA, a Roth IRA has no required minimum distributions during your lifetime. You can leave the money in the account and let it grow tax-free for as long as you live. Your heirs will inherit it, but they will have their own withdrawal rules.

What is a backdoor Roth, and do I need one?

A backdoor Roth is a strategy where you contribute to a traditional IRA and then convert it to a Roth IRA. It is used by people whose income is too high to contribute directly to a Roth. It is legal but has tax implications if you have other traditional IRAs. Discuss it with a tax professional before attempting it.

Can I have both a Roth IRA and a traditional IRA?

Yes, but your total contributions to both combined cannot exceed the annual limit. If you contribute $5,000 to a traditional IRA, you can only contribute $2,000 to a Roth IRA that year if the limit is $7,000. The limit applies to all your IRAs together, not to each account separately.