A SIMPLE IRA (Savings Incentive Match Plan for Employees) is a retirement account plan designed for small businesses. Employers with 100 or fewer employees who earned at least $5,000 in the previous year can establish one. Employees contribute through salary deferrals, and the employer is required to contribute on their behalf — unlike most small-business plans, where employer contributions are optional.
The setup and administration costs are significantly lower than a 401(k), which is why many small employers choose it over the more complex alternatives.
Contribution limits for 2025
| Contributor | Annual limit |
|---|---|
| Employee (under age 50) | $16,500 |
| Employee (age 50 or older, catch-up) | $17,600 |
| Employer (matching option) | Up to 3% of employee’s compensation |
| Employer (non-elective option) | 2% of each eligible employee’s compensation |
The catch-up limit for employees aged 50 and older is $3,500 above the base $16,500 limit. Employees between ages 60 and 63 get an enhanced catch-up contribution of $5,250 above the base limit under SECURE 2.0 rules, bringing their total to $21,750 for 2025.
These are employee-only compensation deferrals. The employer contribution sits on top of whatever the employee contributes.
The mandatory employer contribution
Unlike a 401(k) where an employer can choose not to match, a SIMPLE IRA requires the employer to contribute each year. There are two options:
The matching option works dollar-for-dollar up to 3% of each employee’s compensation. An employee earning $60,000 who contributes $9,000 gets an employer match of $1,800. The employer can reduce the match rate to as low as 1% in two of every five years with advance notice to employees.
The non-elective option skips the match structure entirely: the employer contributes 2% of compensation for every eligible employee, whether or not they put in anything themselves. An employee who contributes zero still gets the 2%. It’s more predictable to budget for and benefits employees who can’t afford to defer salary. The 2% calculation is capped at $350,000 in compensation for 2025.
Most employers go with the matching option because the cost tracks directly to who participates.
How SIMPLE IRAs differ from 401(k)s and SEP-IRAs
| Feature | SIMPLE IRA | 401(k) | SEP-IRA |
|---|---|---|---|
| Who can use it | Employers with up to 100 employees | Any employer | Any employer; self-employed |
| Employee contributions | Yes | Yes | No |
| Employer contributions | Required | Optional | Optional |
| 2025 employee contribution limit | $16,500 | $23,500 | Not applicable |
| Setup complexity | Low | High | Low |
| Loans allowed | No | Often yes | No |
A SEP-IRA allows only employer contributions (though a self-employed person is considered both employee and employer). A SIMPLE IRA allows both, making it often the better fit when employees want the ability to contribute their own salary.
A 401(k) allows higher total contributions and more flexibility but costs more to administer. A SIMPLE IRA is generally the right choice for employers who want a structured plan with mandatory employer contributions but can’t justify the overhead of a 401(k).
Early withdrawal penalty
The early withdrawal penalty on a SIMPLE IRA is more severe than on other retirement accounts during the first two years. If you take a distribution within the first two years of participation and you’re under 59½, the penalty is 25%, not the usual 10%. After two years, the standard 10% early withdrawal penalty applies.
This two-year restriction also affects rollovers. In the first two years, you can only roll a SIMPLE IRA into another SIMPLE IRA without penalty. After two years, you can roll it into a traditional IRA, 401(k), or other eligible retirement plan.
Who benefits from a SIMPLE IRA
For employees at small businesses, the SIMPLE IRA offers a meaningful retirement benefit that’s straightforward to understand. The guaranteed employer contribution means even a modest employer is building something on your behalf each year.
For solo business owners, a SEP-IRA or solo 401(k) typically allows higher contributions relative to income (a SEP-IRA allows up to 25% of compensation up to $70,000 in 2025), so a SIMPLE IRA is usually a better fit once you have employees.
One important constraint: an employer cannot maintain both a SIMPLE IRA and another qualified retirement plan in the same year. If the business wants to eventually move to a 401(k), it would need to terminate the SIMPLE IRA at the end of the year and establish the 401(k) for the following year.
What to do if your employer offers a SIMPLE IRA
Contribute at least enough to capture the full employer match. If your employer is matching dollar-for-dollar up to 3% of your salary, not contributing means leaving money that is already allocated to your compensation on the table.
Beyond the match, whether to maximize your SIMPLE IRA contributions depends on whether you have other tax-advantaged options. SIMPLE IRA contributions are pre-tax, they reduce your taxable income today and grow tax-deferred. You’ll pay ordinary income tax when you withdraw in retirement.
If you’re self-employed and considering setting up a SIMPLE IRA for yourself and any employees, compare it carefully with a SEP-IRA and solo 401(k) given your specific income level and whether you have employees beyond yourself. An accountant or financial advisor can run the numbers for your situation.
The IRS SIMPLE IRA plan resource (irs.gov/retirement-plans/simple-ira-plan) covers the formal eligibility and setup requirements, including the notice requirements employers must fulfill before establishing the plan.