What a SIMPLE 401(k) is
A SIMPLE 401(k) is an employer-sponsored retirement plan created for businesses with one hundred or fewer employees. The word SIMPLE stands for Savings Incentive Match Plan for Employees. The plan borrows from two worlds: it uses the 401(k) trust structure — which means employee contributions are held in trust, not in individual IRA accounts — while eliminating the annual nondiscrimination testing that makes traditional 401(k) plans expensive to administer.
The tradeoff is that the employer must contribute. There is no option to offer the plan and skip the match. The employer either matches employee contributions dollar for dollar up to three percent of compensation, or contributes a flat two percent of compensation for every eligible employee regardless of whether they contribute. That mandatory cost is the price of skipping the compliance testing.
For a business with a handful of employees where the owner wants a real retirement plan without the administrative burden, this is often the right structure. But the right structure for the business is not always the right structure for the owner — and that is where the planning starts.
The SIMPLE 401(k) is sometimes overlooked because its SIMPLE IRA cousin is more widely marketed. The trust structure makes it slightly more complex to administer than a SIMPLE IRA, but it opens access to features that matter: Roth contributions, participant loans, and potentially better investment options than those available through the typical financial institution that sponsors SIMPLE IRAs. For a business owner who wants to direct employee contributions into low-cost index funds rather than a bank's proprietary product line, the trust structure is a meaningful advantage.
Vesting is another distinction worth noting. Both the SIMPLE IRA and the SIMPLE 401(k) require employer contributions to vest immediately — employees own the employer's contribution the moment it is deposited. A traditional 401(k) can impose a vesting schedule, which means employees who leave before a certain tenure may forfeit a portion of the employer match. For a small business owner who is concerned about employee turnover and does not want to fund the retirement of someone who leaves after six months, the SIMPLE 401(k)'s immediate vesting requirement is a real cost to weigh against the plan's other advantages.
The one hundred employee cap is also a hard line. The SIMPLE 401(k) is available only to employers that employed one hundred or fewer employees who received at least five thousand dollars in compensation in the preceding calendar year. Once the business crosses that threshold, it has two years of grace period before the plan must be terminated or converted to a traditional 401(k). Planning for that transition — which involves adding nondiscrimination testing infrastructure and potentially redesigning the contribution structure — should start well before the threshold is reached.
What working with us looks like
First meeting — the plan comparison
We meet in person and run the comparison across all three plan types using your actual payroll numbers, employee count, and owner compensation. The goal is to identify which plan structure maximizes the owner's savings while meeting the employer obligation at a cost that fits the business.
Second meeting — the written recommendation
You leave with a written recommendation that includes the plan type, the contribution structure, a provider shortlist, and projected annual costs. If the SIMPLE 401(k) is the right fit, we explain why. If it is not, we say so and point you toward the plan that is.
A note on fit
When this might not be right for you
A SIMPLE 401(k) is not the right plan for every small business. Some situations where it probably does not fit:
- Businesses with more than one hundred employees. The plan is not available above that threshold.
- Owners who want to maximize personal retirement contributions above the SIMPLE limits. A traditional 401(k) or a defined benefit plan may offer more room.
- Employers who do not want a mandatory contribution obligation. A traditional 401(k) with a safe harbor match may offer more flexibility.
The plan comparison takes one meeting. If the SIMPLE 401(k) is wrong for your business, you will know before you leave.
Frequently asked questions
What is the difference between a SIMPLE 401(k) and a SIMPLE IRA?
Both are designed for employers with one hundred or fewer employees and both require an employer contribution. The SIMPLE 401(k) uses a trust structure, can offer Roth contributions and participant loans, and has slightly different rollover rules. The SIMPLE IRA uses individual IRA accounts and cannot offer Roth or loans. Contribution limits are the same.
How much does an employer have to contribute to a SIMPLE 401(k)?
The employer must either match employee contributions dollar for dollar up to three percent of compensation, or make a flat two percent nonelective contribution for all eligible employees regardless of whether they choose to contribute. There is no option to offer the plan without an employer contribution. The three percent match rewards participation — employees who contribute get the full employer match, while those who do not receive nothing. The two percent nonelective formula may cost the employer more if participation is low, but it covers everyone and avoids any question about whether employees are being discouraged from deferring.
Can a SIMPLE 401(k) include a Roth option?
Yes. Unlike a SIMPLE IRA, the SIMPLE 401(k) can offer designated Roth contributions. This allows employees to contribute after-tax dollars that grow and come out tax-free in retirement, subject to the same annual limits as the pre-tax option.
Is a SIMPLE 401(k) less expensive to administer than a regular 401(k)?
Generally yes. The SIMPLE 401(k) is exempt from annual nondiscrimination testing, which reduces the compliance cost. However, it still requires a trust and annual Form 5500 filing, which a SIMPLE IRA does not. The net cost depends on your plan provider.
Can I roll a SIMPLE 401(k) into an IRA?
Yes, after separation from the employer. During the first two years of participation, rollovers from any SIMPLE plan carry a twenty-five percent penalty if withdrawn early — more than double the standard ten percent. After two years the standard rollover rules apply, and a trustee-to-trustee transfer to an IRA avoids any withholding. We review the timing before recommending any rollover, particularly when a participant is within the two-year window or is approaching separation and wants to understand their options.
Do you sell retirement plans to small businesses?
No. We are fee-only fiduciaries. We advise on plan selection and design, but we do not sell plan products, accept commissions from plan providers, or receive referral fees. Our fee is paid by you and disclosed in writing.