What is a SIMPLE IRA?

A SIMPLE IRA (Savings Incentive Match Plan for Employees) is an employer-sponsored retirement plan built for small businesses. It sits between a traditional IRA and a 401(k): higher contribution limits than an IRA, mandatory employer contributions, and far less administrative burden than a 401(k).

Eligibility is the defining constraint. Only employers with 100 or fewer employees who earned at least $5,000 in the prior year can offer one, and the employer generally cannot maintain another qualified retirement plan at the same time.

SIMPLE IRA Contribution Limits for 2026

For 2026 you can defer $17,000 of your own pay, or $18,100 if your employer qualifies for the higher tier that SECURE 2.0 created.

Which deferral limit applies depends on your employer’s size:

• 25 or fewer employees: the $18,100 limit applies automatically.
• 26 to 100 employees: the employer may elect the $18,100 limit, but only by upgrading its own contribution to either a 4% match or a 3% nonelective contribution, rather than the standard 3% and 2%.
• Otherwise the limit is $17,000.

The catch-up figures run counter to intuition. Plans using the higher $18,100 deferral limit take a $3,850 age-50 catch-up rather than $4,000, because SECURE 2.0 pegged that amount to 2024 and ordinary inflation adjustments have since carried the standard figure past it. Catch-ups also have to be permitted by the plan; they are not automatic.

For comparison, a traditional IRA allows $7,500 in 2026 and a 401(k) allows $24,500.

How Employer Contributions Work

Unlike most retirement plans, the employer half of a SIMPLE IRA is not optional. Every year the employer picks either a match or a nonelective contribution, each of which has an upgraded version that unlocks the higher deferral limit:

Separately, SECURE 2.0 lets an employer add a uniform nonelective contribution of up to 10% of compensation on top, capped at $5,300 for 2026. It is optional, and most employers do not make it.

The 3% match can be reduced to as low as 1% in two out of any five consecutive years, provided employees are notified in advance. Outside that exception, the employer contribution is a real obligation, which is the main reason a business chooses a SIMPLE IRA deliberately rather than by default.

If your employer matches, contributing at least the announced match percentage, normally 3%, is the difference between capturing that money and leaving it behind.

The Two-Year Rule

Withdrawals taken within two years of your first contribution to the plan face a 25% early distribution penalty in place of the usual 10%. The clock runs from your first contribution date, not from each contribution.

Importantly, the 25% substitutes for the standard early withdrawal penalty rather than adding a new one, so it only bites where that penalty would apply anyway. If you are 59 1/2 or older, or another exception covers you, no penalty is due at all.

The same two-year window restricts rollovers. During it, you can only roll a SIMPLE IRA into another SIMPLE IRA. Rolling into a traditional IRA or a 401(k) before the two years are up is treated as a distribution, so the balance becomes taxable income, with the 25% penalty on top if you are under 59 1/2.

After two years the account behaves like a traditional IRA: the early withdrawal penalty reverts to the standard 10% where it applies, and you can roll the balance anywhere.

SIMPLE IRA vs. 401(k)

The headline difference is capacity. A 401(k) allows $24,500 of deferrals in 2026 against the SIMPLE IRA’s $17,000, and its total contribution ceiling is far higher still.

What the SIMPLE IRA gives up in capacity it takes back in certainty and simplicity. Employer contributions are mandatory rather than discretionary, everything vests immediately instead of over a schedule, and there is no annual nondiscrimination testing or Form 5500 filing for the employer to manage. A 401(k) may offer loans and a Roth option, though both are optional plan features rather than guarantees, and it leaves far more room for high earners to save.

For an employee the practical question is rarely which plan is better in the abstract, but what the mandatory employer contribution is worth against a 401(k) match you may or may not receive. Comparing contribution mixes against your projected retirement income in ProjectionLab’s retirement calculator shows what that obligation is actually worth over a full career.

SIMPLE IRA vs. Other Small Business Plans

A SIMPLE IRA suits a small business that wants to offer something meaningful to employees without payroll-plan complexity. A self-employed person with no staff can usually contribute more through a solo 401(k), which shares the same $72,000 ceiling as a SEP but reaches it at a lower income because it adds an employee deferral on top of the employer contribution.

SIMPLE IRA Rules Worth Knowing

Everything in a SIMPLE IRA vests immediately. Both your contributions and your employer’s are 100% yours from the day they land, with no vesting schedule at all, which is a real advantage over many 401(k) plans.

Contributions are pre-tax by default, reducing your adjusted gross income in the year you make them, with distributions taxed as ordinary income later. SECURE 2.0 also permits Roth treatment of SIMPLE deferrals, though whether that option exists depends on your employer and custodian.

One thing you cannot do is borrow. SIMPLE IRAs follow IRA rules, and IRAs do not permit loans.

Whether to prioritize a SIMPLE IRA over other savings depends on the match, your bracket now versus in retirement, and what else is available to you.

Frequently Asked Questions

How much can I contribute to a SIMPLE IRA? $17,000 in 2026, or $18,100 if your employer qualifies for the higher tier. If you are 50 or older, add $4,000 under a standard plan or $3,850 under a higher-tier plan, and $5,250 instead if you turn 60 to 63 during the year. The higher tier is automatic for employers with 25 or fewer employees and optional for those with 26 to 100, provided they upgrade their own contribution.

Does my employer have to contribute? Yes. Employer contributions are mandatory: either a dollar-for-dollar match up to 3% of your compensation, or 2% of compensation for every eligible employee regardless of whether they contribute.

What is the SIMPLE IRA two-year rule? Withdrawals within two years of your first contribution face a 25% early distribution penalty instead of the usual 10%, and during that window the account can only be rolled into another SIMPLE IRA. The penalty only applies if you would otherwise owe the early withdrawal tax, so it does not affect participants who are 59 1/2 or older.

Is a SIMPLE IRA a traditional IRA? Not quite, though it is close. A SIMPLE IRA is its own account type with its own contribution limits, mandatory employer funding, and the two-year rule. Once those two years pass it behaves much like a traditional IRA, and it can be rolled into one. Contributions are pre-tax and withdrawals are ordinary income, as with a traditional IRA.

Can I have a SIMPLE IRA and a Roth IRA? Yes. They have separate limits. Roth IRA eligibility still depends on your income, and participating in a SIMPLE IRA counts as workplace plan coverage for traditional IRA deductibility purposes.

What happens to my SIMPLE IRA if I leave the job? It stays yours, fully vested. After the two-year window you can roll it into a traditional IRA or a new employer’s plan, or leave it where it is.

Can I take a loan from a SIMPLE IRA? No. SIMPLE IRAs follow IRA rules, which prohibit loans. A 401(k) is the plan type that generally permits borrowing.