How a SIMPLE IRA Works: Contributions, Withdrawals, and Tax Treatment

A SIMPLE IRA is a retirement account for small business owners and their employees

A SIMPLE IRA (Savings Incentive Match Plan for Employees) is a retirement savings account that small employers set up for themselves and their workers. The employer must have 100 or fewer employees. Unlike a traditional 401(k), a SIMPLE IRA has lower administrative costs and simpler rules, which is why it exists—to make retirement saving practical for businesses that cannot afford the compliance burden of larger plans.

The account works like this: employees contribute a portion of their paycheck before taxes, the employer makes matching or non-elective contributions, and the money grows tax-deferred until withdrawal. When you withdraw in retirement, those withdrawals are taxed as ordinary income. The catch is that withdrawals before age 59½ usually trigger a 25% penalty during the first two years you own the account, and 10% after that—steeper than the standard 10% early withdrawal penalty on other retirement accounts.

Key Takeaways

• A SIMPLE IRA is designed for businesses with 100 or fewer employees and requires the employer to contribute either a matching amount or a flat 2% non-elective contribution for all workers.
• Employee contributions for 2024 are capped at $16,000 per year, with an additional $3,500 catch-up contribution allowed for workers age 50 and older.
• Withdrawals before age 59½ are subject to a 25% penalty if taken within the first two years of plan participation, and 10% after that—higher than other retirement accounts.
• SIMPLE IRAs are funded through payroll deductions and employer contributions, and the account is held at a financial institution, not managed by the employer directly.
• You cannot roll a SIMPLE IRA into a traditional IRA or 401(k) until you have participated in the plan for at least two years.

How contributions work: employee and employer sides

Employees contribute through payroll deduction, similar to a 401(k). For 2024, the maximum employee contribution is $16,000 per year. If you are 50 or older, you can contribute an additional $3,500 as a catch-up contribution, bringing your total to $19,500. These contributions reduce your taxable income for the year.

The employer must also contribute. There are two options: a matching contribution or a non-elective contribution. With matching, the employer contributes up to 3% of each employee's salary (the employer can lower this to 1% in no more than two of five years). With non-elective, the employer contributes 2% of salary for every employee who earns at least $5,000 that year, regardless of whether the employee contributes anything. Many employers choose the 2% non-elective route because it is simpler—they do not have to track individual employee contributions.

The employer's contribution is tax-deductible as a business expense. The employee's contribution is not taxed in the year it is made, but the employer's contribution is also not taxed to the employee until withdrawal.

Tax treatment and how withdrawals are taxed

Money in a SIMPLE IRA grows tax-deferred. You do not pay tax on investment gains, dividends, or interest while the money sits in the account. Tax is due only when you withdraw.

Withdrawals are taxed as ordinary income at your tax rate in the year you withdraw. If you withdraw $10,000 and you are in the 22% tax bracket, you owe $2,200 in federal income tax on that withdrawal (plus any state income tax, depending on where you live). There is no special long-term capital gains rate for SIMPLE IRA withdrawals—everything comes out as ordinary income.

The early withdrawal penalty is where SIMPLE IRAs differ sharply from other accounts. If you withdraw before age 59½ and you have owned the SIMPLE IRA for less than two years, the penalty is 25% of the amount withdrawn. After two years, the penalty drops to the standard 10%. This two-year rule applies from the date you first participated in any SIMPLE IRA plan, not from the date you opened your current account. A few exceptions exist—disability, medical expenses exceeding 7.5% of adjusted gross income, and a few others—but they are narrow.

Required minimum distributions and age 72

At age 72, you must begin taking required minimum distributions (RMDs) from your SIMPLE IRA. The IRS calculates the amount using your account balance and a life expectancy table. If you do not take the full RMD, you owe a 25% penalty on the shortfall (reduced to 10% under certain conditions). This rule applies whether you are still working or retired.

If you are still working and do not own more than 5% of the business, you may be able to delay RMDs until you actually retire, depending on the plan document. Ask your plan administrator or the financial institution holding your account whether this provision applies.

Rolling a SIMPLE IRA to another account

You cannot roll a SIMPLE IRA into a traditional IRA or 401(k) until you have been in the SIMPLE IRA plan for at least two years. This two-year restriction is one of the biggest limitations of SIMPLE IRAs. If you leave your job after one year and want to move your balance to an IRA at another financial institution, you can do a direct transfer between SIMPLE IRAs, but you cannot move it to a traditional IRA without triggering the 25% early withdrawal penalty on the full amount.

After two years, you can roll the SIMPLE IRA into a traditional IRA or, if your new employer offers one, into their 401(k) plan (if the plan accepts rollovers). A direct rollover—where the financial institution transfers the money directly to the new account—avoids any tax withholding or reporting complications. If you take the money yourself and deposit it within 60 days, the financial institution will withhold 20% for federal taxes, and you must cover that withholding out of pocket to avoid a taxable distribution.

SIMPLE IRA versus other retirement accounts

A SIMPLE IRA is simpler and cheaper to administer than a 401(k), but it has lower contribution limits. For 2024, a SIMPLE IRA caps employee contributions at $16,000 (plus $3,500 catch-up), while a 401(k) allows $23,500 (plus $7,500 catch-up). A SIMPLE IRA also has the steep 25% early withdrawal penalty in the first two years, whereas a traditional IRA or 401(k) has only 10%.

A traditional IRA, which you can open on your own without an employer, has the same tax treatment as a SIMPLE IRA but lower contribution limits ($7,000 for 2024, plus $1,000 catch-up) and no employer match. A SEP IRA, another small-business option, allows much higher contributions (up to 25% of net self-employment income or $69,000 for 2024) but requires the employer to contribute the same percentage for all employees who earn over $650.

The choice depends on your business size, how much you want to save, and whether you want to offer an employer match to attract and retain employees. A SIMPLE IRA is the middle ground: more generous than an individual IRA, less complex than a 401(k), and it includes an employer contribution.

Setting up and maintaining a SIMPLE IRA

To set up a SIMPLE IRA, you open an account at a financial institution—a bank, brokerage, or credit union. You then file Form 5305-SIMPLE or a prototype plan document with the IRS. Many financial institutions provide the prototype documents, so you do not have to draft one yourself. You must establish the plan by October 1 if you want it to take effect that calendar year.

Once the plan is open, you handle contributions through payroll. The employer deposits its matching or non-elective contribution, and the payroll system deducts employee contributions. The financial institution holds the account and invests the money according to each employee's choices (usually mutual funds or stable value options). There is no annual Form 5500 filing requirement, which is a major advantage over 401(k)s.

You must provide employees with a summary plan description and notice of their rights and obligations. If you change the plan terms—such as lowering the match percentage—you must notify employees in writing. The compliance burden is much lighter than a 401(k), but it is not zero.

Frequently Asked Questions

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

Yes, but your total contributions across both accounts cannot exceed the SIMPLE IRA limit for that year. If you contribute $10,000 to a SIMPLE IRA, you can contribute only $6,000 to a traditional IRA (assuming you are under 50). The limits are combined, not separate.

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

Your account stays open and continues to grow. You can leave the money where it is, roll it to another SIMPLE IRA if you move to a different employer with a SIMPLE IRA, or after two years, roll it to a traditional IRA or 401(k). You cannot access the money without penalty until age 59½, except in narrow circumstances like disability or medical hardship.

Can a self-employed person with no employees use a SIMPLE IRA?

Yes. A sole proprietor with no employees can set up a SIMPLE IRA and contribute as both employee and employer. The employee contribution is limited to $16,000 (plus catch-up), and the employer contribution is up to 2% of net self-employment income, but a SEP IRA usually offers higher total contributions for self-employed people.

What if my employer stops contributing to the SIMPLE IRA?

The plan can continue, but the employer must notify employees in writing. If the employer stops contributing for two consecutive years, the plan may be terminated. Your existing balance remains yours and continues to grow, but no new contributions are made unless the employer resumes contributions.

Is there a way to avoid the 25% penalty in the first two years?

The 25% penalty applies to all withdrawals in the first two years except in cases of disability, death (distributions to beneficiaries), or medical expenses exceeding 7.5% of adjusted gross income. Otherwise, the penalty is unavoidable—you cannot waive it or reduce it by paying taxes early.