What Is a Roth IRA? Rules, Taxes, and Who Qualifies

By Ed Robinson, Co-Founder & Co-CEO, Stash · FINRA Series 7 & 63 · Graduate Diploma in Financial Planning · Last updated June 06, 2026

A Roth IRA is an individual retirement account funded with after-tax dollars, where qualified withdrawals in retirement are not taxed.

Say you are 28, just started contributing to your first 401(k), and still have a little room in your monthly budget. A Roth IRA may come up because it can give you another way to save for retirement outside your workplace plan.

What is a Roth IRA?

A Roth IRA is a tax-advantaged retirement account you open as an individual, not through your employer. You put in money you have already paid income tax on. The trade-off is that qualified withdrawals later can be taken without federal income tax, as long as you follow IRS rules on age, time, and account use.

The “IRA” part stands for individual retirement arrangement, though many people say individual retirement account. Unlike a 401(k), a Roth IRA is not tied to your job. You can keep the same account if you change companies, switch careers, or take time away from work.

The IRS sets annual contribution limits and income rules. For 2025, the IRS said the IRA contribution limit was $7,000, or $8,000 if you were age 50 or older. Those limits can change, so it is worth checking the current IRS numbers before you contribute.

This is general guidance; what's right for you depends on your specific situation. Stash is a regulated investment adviser — not a bank, and we do not push specific securities.

How a Roth IRA works

A Roth IRA has two layers: the account and the investments inside it. The account gives the tax treatment. The investments decide what your money is exposed to, such as stocks, bonds, funds, or cash-like holdings. Your results depend on what you choose, market conditions, fees, and how long the money stays invested.

Here is a real-feeling example.

Imagine Maya earns $92,000 a year and contributes $300 a month to a Roth IRA from age 30 to age 40. That is $3,600 a year, or $36,000 in contributions over 10 years. If she invests the money in a diversified portfolio, the balance can rise or fall along the way. There is no set outcome.

The key Roth IRA feature is the tax timing. Maya does not deduct those $300 monthly contributions from her taxable income now. But if she follows Roth IRA withdrawal rules, qualified withdrawals in retirement are not taxed by the federal government.

A Roth IRA also has a special rule for contributions. Because you already paid tax on the money you put in, you can generally withdraw your contributions at any time without federal tax or penalty. Earnings are different. Earnings must meet stricter rules to avoid tax and penalties.

Roth IRA contribution and income rules

Roth IRA contributions are limited by both annual caps and income eligibility. You also need earned income, such as wages or self-employment income, to contribute. Investment income alone usually does not count. If you earn too much, your direct Roth IRA contribution may be reduced or phased out under IRS rules.

For 2025, per the IRS, single filers had a Roth IRA contribution phaseout range from $150,000 to $165,000 in modified adjusted gross income. Married couples filing jointly had a phaseout range from $236,000 to $246,000. These figures are useful guideposts, not a substitute for the current rules.

A few basic points matter:

• You cannot contribute more than your earned income for the year.

• IRA contribution limits apply across Roth and traditional IRAs combined.

• The deadline is usually the tax filing deadline for that year.

• Employer 401(k) contributions do not count against your IRA limit.

So if you put $4,000 into a traditional IRA and the annual limit is $7,000, you may have only $3,000 of room left for a Roth IRA that year. The exact room depends on current rules and your income.

Roth IRA withdrawals and the 5-year rule

Roth IRA withdrawal rules depend on whether you take out contributions or earnings. Contributions are usually more flexible. Earnings may be taxed or penalized if you withdraw them too early. The 5-year rule and age 59½ are the two big checkpoints for qualified withdrawals.

The 5-year clock usually starts on January 1 of the tax year for your first Roth IRA contribution. To take earnings as a qualified distribution, you generally need the account to satisfy the 5-year rule and meet another condition, such as being at least 59½.

There are also certain exceptions for situations like a first-time home purchase, disability, or death. But exceptions can be narrow. Taxes and penalties can get messy fast, so this is an area where a tax professional can help.

One practical point: a Roth IRA is designed for retirement, even though contributions can be accessible. Treating it like a backup checking account can weaken the reason you opened it in the first place.

Why a Roth IRA matters for everyday investors

A Roth IRA can help you add tax diversity to your retirement plan. If your 401(k) is traditional, you may owe income tax when you withdraw that money later. A Roth IRA gives you a different tax bucket. That can be useful when future tax rates, income, and retirement costs are hard to predict.

Think about your future self at 67. You may have Social Security, a 401(k), maybe a taxable brokerage account, and maybe a Roth IRA. Having more than one type of account can give you more choices when you decide where to pull income from.

A Roth IRA can also help if you are early in your career. If your tax rate is lower now than you think it may be later, paying tax upfront could be appealing. But that is not a sure thing. Your future income, tax law, and life plans can change.

If you are searching for this, you're already doing the right work. Plans starting at $3 a month can make guided investing more accessible, but the main decision is still personal: how a Roth IRA fits with your budget, debt, emergency savings, and workplace benefits.

Common Roth IRA misconceptions

Roth IRAs are often explained in a way that makes them sound too simple. That can lead to bad assumptions. The biggest mix-ups are about what a Roth IRA actually is, who can use one, and whether the money is locked away forever. Knowing the difference can help you avoid costly surprises.

Misconception: A Roth IRA is an investment

Correction: A Roth IRA is the account type; the investments inside the account are separate choices.

This matters because opening a Roth IRA does not automatically invest your money. If cash sits in the account, it may not be exposed to the market. If you choose investments, they can gain or lose value.

Misconception: High earners can always contribute directly

Correction: Direct Roth IRA eligibility depends on income rules set by the IRS.

Some people earn too much to contribute directly. Others fall into a partial contribution range. There are strategies people discuss, such as backdoor Roth contributions, but those can raise tax issues and are not a fit for every situation.

Misconception: Roth IRAs are only for people near retirement

Correction: Roth IRAs can be most powerful when you have a long timeline, but they still require risk awareness.

A 25-year-old may have decades before retirement, while a 45-year-old may use a Roth IRA for tax diversification. The right use depends on time horizon, income, taxes, and comfort with investing risk.

Bottom line

A Roth IRA is a retirement account with tax rules that can work well for long-term planning, but it is not magic. Focus on eligibility, contribution limits, withdrawal rules, fees, and how the account fits your full financial life before you fund one.

Important disclosures

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