SIMPLE IRA for Small Business 2026: Limits, Employer Match Options, and When It Beats a SEP

A SIMPLE IRA lets employees share the retirement savings responsibility with you — reducing the employer's per-employee cost compared to a SEP IRA. Here are the 2026 limits, the employer match math, and how to decide whether SIMPLE, SEP, or solo 401(k) wins for your business.

What is a SIMPLE IRA?

SIMPLE stands for Savings Incentive Match Plan for Employees. It's a retirement plan for businesses with 100 or fewer employees. Unlike a SEP IRA — which is funded entirely by the employer — a SIMPLE IRA is an employee-deferral plan with a mandatory employer contribution. Employees elect to reduce their salary and direct the difference into their SIMPLE IRA; the employer adds its matching or non-elective contribution on top.

The result is a plan where employees actively build their own retirement savings, and the employer's contribution is smaller than what a SEP IRA would require. For a business with 5+ employees, this difference in employer cost can be dramatic.

SIMPLE IRAs require no Form 5500 filing, no non-discrimination testing, and have immediate vesting. Setup involves filing either IRS Form 5304-SIMPLE (each employee chooses their own financial institution) or Form 5305-SIMPLE (employer picks a single institution for all participants).

2026 employee deferral limits — and the small-employer wrinkle

Under a SECURE 2.0 change, SIMPLE IRA contribution limits now vary based on employer size:¹

• Employers with 26 or more employees: $17,000 employee deferral in 2026.
• Employers with 25 or fewer employees: $18,100 in 2026 — an automatic 6% higher limit. No election required; it applies automatically if you qualify.

Catch-up contributions layer on top of the base deferral:

• Age 50–59 and 64+: additional $4,000 (2026).
• Ages 60–63: SECURE 2.0 super catch-up of $5,250 instead of the standard $4,000.

This means an owner-employee who is 62 years old at a business with 20 employees can defer up to $18,100 + $5,250 = $23,350 from their own salary in 2026. That still trails the solo 401(k) ($24,500 + $11,250 = $35,750 at the same age), but it's meaningfully better than the standard limit.

Employer contribution: two options

Every year, the employer must choose between two options — and must notify employees at least 60 days before the start of each plan year:

Option 1: 3% matching contribution

The employer matches employee contributions dollar-for-dollar, up to 3% of each employee's compensation. If an employee doesn't contribute, the employer doesn't contribute for them.

SECURE 2.0 allows the employer to drop the match to as low as 1% in up to 2 out of every 5 plan years, giving flexibility in tight years without terminating the plan.

Option 2: 2% non-elective contribution

The employer contributes 2% of compensation for every eligible employee — regardless of whether the employee contributes. An employee who elects zero deferral still receives a 2% employer contribution.

This option is more predictable (you can budget the exact employer cost) and benefits employees who don't elect to participate. But you pay for non-participating employees, which can be wasteful if your workforce has low engagement with the plan.

Why SIMPLE IRA can be cheaper than SEP IRA when you have employees

This is the core reason to choose SIMPLE over SEP once employees enter the picture. A SEP IRA requires the same contribution rate — typically 20–25% of compensation — for every eligible employee. At that rate, employees become expensive quickly.

Example: S-corp owner, 4 full-time employees earning $65,000 each, owner pays themselves $180,000 W-2.

Assumptions: 2026, owner on S-corp W-2 of $180K, 4 employees at $65K each all electing 3% deferral under the matching scenario. Owner age under 50 for simplicity.

The SEP IRA delivers a much larger deduction for the owner ($45,000 vs $23,500) — but at the cost of funding $65,000 of contributions for employees. The SIMPLE IRA reduces the owner's own shelter but saves over $96,000 in employer cost compared to the SEP. For a business at tight margins, that difference is real operating cash flow.

SIMPLE IRA vs SEP IRA vs solo 401(k): at a glance

The 2-year rule — the biggest SIMPLE IRA gotcha

Within the first two years of your initial SIMPLE IRA contribution, you can only roll your balance to another SIMPLE IRA. If you roll to a traditional IRA or 401(k) before that 2-year window closes, the IRS treats the entire amount as a distribution — subject to income tax plus a 25% early withdrawal penalty (instead of the standard 10%).²

After the two-year period, you can roll a SIMPLE IRA to a traditional IRA, solo 401(k), or SEP IRA with no penalty, just like any other pre-tax account.

This matters in practice when a business grows past 100 employees and needs to switch plan types, or when an owner sells the business and wants to consolidate accounts. The 2-year clock runs from the date of your first contribution to the plan, not from each contribution separately.

When SIMPLE IRA is the right call

• You have employees and want to contain employer cost. A SEP IRA forces you to fund the same rate for everyone. SIMPLE caps employer exposure at 3% of compensation and puts the savings responsibility partly on employees.
• You want to offer employees a meaningful benefit without 401(k) complexity. SIMPLE IRA has no non-discrimination testing, no top-heavy rules, and no Form 5500 (unlike a full 401k). For a 10-person firm, the compliance savings are substantial.
• Your business is small enough for the higher $18,100 limit. Businesses with ≤25 employees get the elevated limit automatically — closing some of the gap with the solo 401(k).

When SIMPLE IRA is the wrong call

• You're solo or have only a spouse as an employee. The solo 401(k) lets you shelter $24,500 + 25% of W-2 compensation, far more than the SIMPLE's $17,000 + 3% match. Use a solo 401(k).
• Maximizing your own deduction is the priority. SEP IRA or solo 401(k) + cash balance plan will save you more in taxes if you can absorb the higher employer cost for employees.
• You plan to make a rollover within 2 years. If there's any chance you'll restructure accounts, change entities, or sell the business soon, the 25% early distribution penalty trap is a significant risk.