The Complete Roth IRA Guide

A Roth IRA (Individual Retirement Account) is a tax-advantaged retirement account that lets you contribute after-tax dollars today in exchange for completely tax-free growth and tax-free withdrawals in retirement. It was created by the Taxpayer Relief Act of 1997 and named after Senator William Roth of Delaware.

The concept is simple: you have already paid income tax on the money you contribute. In return, the government never taxes that money again — not the dividends, not the capital gains, not the withdrawals. Every dollar that grows inside your Roth IRA is yours to keep.

To illustrate the power: if you contribute $7,000 per year starting at age 25 and earn a 10% average annual return, by age 65 you will have approximately $3.4 million. In a Traditional IRA, you would owe income tax on every dollar withdrawn. At a 22% tax rate, that is $748,000 in taxes. At 32%, over $1 million. The Roth IRA eliminates that entire future tax bill.

For 2025, the annual Roth IRA contribution limit is $7,000 if you are under age 50, or $8,000 if you are 50 or older (the extra $1,000 is called a “catch-up contribution”).

These limits apply to your total IRA contributions across all Traditional and Roth IRAs combined. If you put $4,000 into a Traditional IRA, you can only put $3,000 into a Roth IRA that year (assuming you are under 50).

You must have earned income at least equal to your contribution amount. Earned income includes wages, salaries, tips, self-employment income, and combat pay. It does not include investment income, rental income, Social Security benefits, or pension payments. The exception is a spousal IRA: if you file jointly, a non-working spouse can contribute based on the working spouse's income.

You have until the tax filing deadline (typically April 15) to make contributions for the prior tax year. This means you can make 2025 contributions as late as April 15, 2026.

Unlike a Traditional IRA, the Roth IRA has income limits that determine whether you can contribute directly. These are based on your Modified Adjusted Gross Income (MAGI).

If your income falls within the phase-out range, your contribution limit is reduced proportionally. For example, a single filer earning $157,500 (halfway through the $150,000-$165,000 range) can contribute about $3,500 instead of $7,000. If your income exceeds the upper limit, you cannot contribute directly — but you can still use the backdoor Roth IRA strategy.

Opening a Roth IRA takes about 15 minutes. Here is the process step by step:

If your income exceeds the Roth IRA limits, the backdoor Roth IRA is a completely legal workaround that lets you fund a Roth IRA regardless of how much you earn. Congress has been aware of this strategy for over a decade and has not closed it.

Mega Backdoor Roth

If your employer's 401(k) plan allows after-tax contributions and in-plan Roth conversions (or in-service withdrawals), you can use the mega backdoor Roth strategy to contribute up to an additional ~$46,000 per year into a Roth account (the gap between your pre-tax/Roth 401k contributions and the total 401k limit of $70,000 in 2025). Not all plans support this, so check with your HR department.

A Roth conversion is the process of moving money from a Traditional IRA or old 401(k) into a Roth IRA. There is no income limit and no cap on the amount you can convert. The catch: you owe ordinary income tax on the converted amount in the year of conversion.

When a Roth Conversion Makes Sense

The Roth Conversion Ladder

A Roth conversion ladder is a strategy used primarily by early retirees. Each year, you convert a specific amount from your Traditional IRA to your Roth IRA, staying within a target tax bracket. After 5 years, the converted amounts become accessible penalty-free (even before age 59.5). By staggering conversions over multiple years, you create a “ladder” of funds that become available sequentially. This is one of the most powerful tools for people who want to retire before 59.5 and access their retirement funds without penalty.

Important: always pay the conversion tax with money outside the IRA. If you use IRA funds to pay the tax, you reduce the amount that benefits from tax-free growth and may trigger an additional 10% penalty if you are under 59.5.

Because Roth IRA withdrawals are tax-free, you want to maximize the tax benefit by holding your highest-growth investments here. This is called asset location — the strategy of placing investments in the account type where they receive the best tax treatment.

Roth IRA withdrawal rules are more flexible than most people realize. The key is understanding the difference between contributions, conversions, and earnings.

The Two 5-Year Rules

Penalty-Free Exceptions for Early Withdrawal of Earnings

Even before age 59.5, the 10% penalty on earnings is waived in these situations (though income tax may still apply):

No Required Minimum Distributions

Unlike Traditional IRAs, Roth IRAs have no required minimum distributions (RMDs) during the owner's lifetime. Your money can compound tax-free indefinitely. This makes the Roth IRA a powerful estate planning tool — beneficiaries receive distributions tax-free (though they must withdraw within 10 years under SECURE Act rules for non-spouse beneficiaries).

One of the most overlooked Roth IRA strategies is opening one for your child. There is no minimum age to contribute to a Roth IRA. The only requirement is that the child has earned income.

What Counts as “Earned Income” for Kids?

Any legitimate work: babysitting, lawn mowing, tutoring, a lemonade stand, modeling, acting, freelance work, or a part-time job. The child can contribute up to 100% of their earned income or $7,000, whichever is less. Keep records of the work performed and income earned, especially for informal jobs.

How It Works

A parent or guardian opens a custodial Roth IRA on the child's behalf. The parent manages the account until the child reaches the age of majority (18 or 21 depending on the state), at which point it becomes a regular Roth IRA in the child's name. The parent can even fund the contributions — the money does not need to come from the child's own bank account, it just needs to be backed by the child's earned income.

Fidelity, Schwab, and Vanguard all offer custodial Roth IRA accounts with no minimums.

All three of the top brokerages offer Roth IRAs with no account minimums, no annual fees, and free stock/ETF trades. The differences are marginal. Pick one and open an account — do not let this decision delay you.

For active traders and international market access, I use Interactive Brokers. Their Roth IRA also has no minimums and the lowest margin rates in the industry if you ever expand to a taxable account.