A Roth IRA and a Simple IRA Are Different Account Types—Here's How

A Roth IRA and a Simple IRA are separate retirement accounts with different rules for who can open them, how much you can contribute, and when you pay taxes

A Roth IRA is an individual account you open on your own, funded with after-tax money. A Simple IRA is an employer-sponsored plan. The two serve different purposes and follow different rules. You cannot have a Simple IRA and call it a Roth IRA—they are distinct account types with their own contribution limits, tax treatment, and withdrawal rules.

The confusion often arises because both are IRAs (Individual Retirement Accounts), but that shared name masks fundamental differences in how they work and who can use them. Understanding which one applies to your situation depends on whether you are self-employed, work for a small employer, or are an individual saver with no workplace plan.

Key Takeaways

• A Simple IRA is offered by employers with 100 or fewer employees; a Roth IRA is opened by an individual with no employer involvement.
• Simple IRA contributions come from your paycheck and your employer's matching contribution; Roth IRA contributions come entirely from your own after-tax income.
• Simple IRA contributions reduce your taxable income in the year you make them; Roth IRA contributions do not, but withdrawals in retirement are tax-free.
• Simple IRA contribution limits are lower than Roth IRA limits, and Simple IRAs have mandatory employer contributions or matching requirements.
• You can have both a Simple IRA (through your employer) and a Roth IRA (opened individually) at the same time, but contribution limits across both accounts are coordinated.

Who Can Open Each Account Type

A Simple IRA is set up by your employer. If your employer has 100 or fewer employees and chooses to offer a Simple IRA, you become a participant through your job. You do not open it yourself—your employer selects a financial institution and handles the plan setup. Self-employed people with no employees can also establish a Simple IRA for themselves.

A Roth IRA is opened by you, directly with a financial institution like a bank, brokerage, or credit union. No employer involvement is required. You can open a Roth IRA whether or not you have a workplace retirement plan. However, your ability to contribute to a Roth IRA depends on your income level. If your modified adjusted gross income exceeds certain thresholds (which vary by filing status and change each year), you cannot contribute to a Roth IRA, though you may be able to use a backdoor Roth conversion strategy.

How Contributions Work and Tax Treatment

With a Simple IRA, your employer deducts contributions from your paycheck before taxes are calculated. Your employer is also required to either match your contributions (up to 3 percent of your salary) or make a non-elective contribution of 2 percent for all employees. These contributions reduce your taxable income for the year. When you withdraw money in retirement, those withdrawals are taxed as ordinary income.

With a Roth IRA, you contribute money that has already been taxed. You write a check or transfer funds from your bank account using after-tax dollars. Your contributions do not reduce your taxable income in the year you make them. The major advantage is that may have access to withdrawals in retirement—including all the growth your money earned—are completely tax-free. You pay the tax upfront, not in retirement.

This difference in tax timing is the core distinction. A Simple IRA is a tax-deferred account; a Roth IRA is a tax-free account. Which one makes sense depends on whether you expect your tax bracket to be higher or lower in retirement.

Contribution Limits and Employer Requirements

Simple IRA contribution limits are set by the IRS and change annually. As of recent years, employees can contribute up to a certain amount (the exact figure varies year to year). Your employer must either match contributions up to 3 percent of your salary or contribute 2 percent for all employees regardless of whether they contribute themselves. This mandatory employer contribution is a key feature—it is not optional.

Roth IRA contribution limits are higher than Simple IRA limits. However, Roth contributions are entirely your responsibility. There is no employer match, no employer contribution, and no payroll deduction. You fund it yourself from your after-tax income. If you have both a Simple IRA and a Roth IRA, your total contributions across both accounts in a single year cannot exceed the Roth IRA limit (the Simple IRA limit applies only to the Simple IRA itself, but if you contribute to both, the IRS tracks the combined total for certain calculation purposes).

Withdrawal Rules and Penalties

Simple IRA withdrawals before age 59½ are generally subject to a 10 percent early withdrawal penalty, plus income tax on the amount withdrawn. There is an exception for certain hardships, but these are limited. If you withdraw from a Simple IRA within two years of first participating in the plan, the early withdrawal penalty is 25 percent instead of 10 percent.

Roth IRA withdrawals follow different rules. You can withdraw your contributions (not the earnings) at any time, tax-free and penalty-free. Earnings can be withdrawn tax-free and penalty-free only if you are age 59½ and have held the account for at least five tax years. Before that, earnings withdrawals trigger income tax and the 10 percent penalty. However, Roth IRAs offer more flexibility for certain situations, such as first-time home purchases (up to $10,000 lifetime) or education expenses.

Both account types require you to begin taking withdrawals at a certain age. Simple IRAs require distributions to begin at age 73 (as of 2023, though this age has changed in the past). Roth IRAs have no required minimum distributions during your lifetime—you can leave the money untouched as long as you wish.

Can You Have Both at the Same Time

Yes, you can have a Simple IRA through your employer and a Roth IRA opened individually at the same time. Many people do. However, your contributions to each are subject to annual limits set by the IRS, and in some cases, having a Simple IRA affects whether you can contribute to a Roth IRA based on income phase-out rules.

If you have a Simple IRA and want to convert it to a Roth IRA, you can do so, but the conversion is treated as a taxable event. You will owe income tax on the amount converted in the year you convert it. This is different from a Roth conversion of a traditional IRA, which follows similar tax rules but applies to a different account type.

When to Choose Each Account Type

You do not choose a Simple IRA—your employer does. If your employer offers one, you can participate, but you cannot opt for a Roth IRA instead through that employer. However, you can open a Roth IRA on your own in addition to your Simple IRA.

If you are self-employed with no employees, you can choose to open a Simple IRA for yourself, or you can open a Solo 401(k) or SEP IRA instead. Each has different contribution limits and rules. A Roth IRA is available to you as an individual if your income is below the phase-out threshold, regardless of whether you have a workplace plan.

The choice between a Simple IRA (if offered by your employer) and a Roth IRA (opened individually) often comes down to tax strategy. If you expect to be in a lower tax bracket in retirement, a Simple IRA's upfront tax deduction may be more valuable. If you expect to be in a higher bracket or want tax-free growth, a Roth IRA may be preferable. Many people benefit from having both.

Frequently Asked Questions

Can I convert my Simple IRA to a Roth IRA?

Yes, you can convert a Simple IRA to a Roth IRA, but the entire amount converted is treated as taxable income in the year of conversion. You will owe income tax on the full balance. This is usually done when your income is lower or when you believe your tax bracket will be higher in retirement.

What happens to my Simple IRA if I leave my job?

Your Simple IRA remains yours. You can leave it with the current provider, roll it into a traditional IRA at another institution, or roll it into your new employer's retirement plan if they accept rollovers. You cannot roll a Simple IRA directly into a Roth IRA without triggering taxes on the conversion.

Can I contribute to both a Simple IRA and a Roth IRA in the same year?

Yes, but your total contributions are subject to IRS limits. The Simple IRA limit applies to that account, and the Roth IRA limit applies to that account. If you contribute to both, make sure your total does not exceed the annual limits set by the IRS for that year.

Do I have to take withdrawals from a Simple IRA at a certain age?

Yes. Simple IRAs require you to begin taking required minimum distributions at age 73. Roth IRAs have no required minimum distributions during your lifetime, which is one advantage of having a Roth IRA if you do not need the money immediately.

Is a Simple IRA better than a Roth IRA?

Neither is universally better—they serve different purposes. A Simple IRA offers an immediate tax deduction and employer contributions, making it valuable for employees at small companies. A Roth IRA offers tax-free growth and withdrawals, making it valuable for individual savers who expect higher future tax rates. Many people benefit from having both.