Learn how a SIMPLE IRA works, its 2026 contribution limits, required employer funding, withdrawal rules, and California tax treatment.
A SIMPLE IRA is an employer retirement plan that lets eligible employees make salary-reduction contributions to individual retirement accounts while the employer makes required contributions. SIMPLE stands for Savings Incentive Match Plan for Employees. It is designed mainly for smaller employers that want less administration than a conventional 401(k), but its contribution limits and flexibility differ.
A SIMPLE IRA is not merely a personal traditional IRA. The employer adopts and operates the plan, employee deferrals run through payroll, and the employer must fund an annual match or nonelective contribution.
An employer generally may establish a SIMPLE IRA if it had 100 or fewer employees who received at least $5,000 of compensation in the preceding year and does not maintain another retirement plan for the year. Controlled-group, acquisition, collectively bargained, and transition rules can change that conclusion.
The employer's plan document sets eligibility within federal boundaries. It generally must cover an employee who received at least $5,000 in compensation during any two preceding calendar years and is reasonably expected to receive at least $5,000 in the current year. The employer may choose less restrictive requirements. Certain union employees and nonresident aliens without U.S.-source compensation can be excluded when the rules are met.
The plan is commonly established using Form 5304-SIMPLE or Form 5305-SIMPLE. These forms are retained with plan records rather than filed annually with the IRS. Employee notices and election periods matter, so a SIMPLE IRA is not a last-minute personal deduction chosen only while preparing the return.
For 2026, the regular employee salary-reduction limit is $17,000, or compensation if lower. SECURE 2.0 permits a higher $18,100 limit for certain applicable SIMPLE plans, including some plans of smaller employers and plans whose employer provides enhanced contributions. Eligibility for the higher limit should be confirmed rather than assumed.
The general age-50 catch-up limit for 2026 is $4,000. An employee who turns age 60, 61, 62, or 63 during 2026 may have a higher $5,250 SIMPLE catch-up limit under SECURE 2.0. The exact plan terms and participant age control.
Employee deferrals across SIMPLE plans and other plans such as a 401(k) share federal coordination rules. A person cannot treat every plan's deferral limit as independent.
The employer generally chooses one of two methods:
The 3% match can be reduced to no less than 1% for no more than two years in a five-year period when notice requirements are met. SECURE 2.0 also permits certain additional nonelective contributions, subject to a dollar cap and plan requirements.
Example: an employee earns $60,000 and defers $6,000. Under the standard 3% match, the employer contributes $1,800. Under the ordinary 2% nonelective method, the employer contributes $1,200 even if the employee makes no deferral.
Employee salary reductions are generally excluded from federal taxable wages but remain subject to Social Security and Medicare taxes. The employer reports them on Form W-2 and deposits them into the employee's SIMPLE IRA within the applicable deadline. Employer contributions generally must be made by the employer return's due date, including extensions.
Traditional SIMPLE IRA contributions and earnings generally grow tax-deferred. Distributions are reported on Form 1099-R and generally taxed like traditional-IRA distributions. Form 5498 reports plan contributions to the IRS.
The first two years begin on the date the employee first participates in the employer's SIMPLE IRA plan. During that period, a tax-free transfer generally can go only to another SIMPLE IRA. An improper transfer to a traditional IRA or another plan can become taxable.
The federal additional tax on an otherwise taxable early SIMPLE IRA distribution is generally 25% rather than 10% during this two-year period. California's additional tax is generally 6% rather than 2.5%. Exceptions can apply, but the two-year start date must be documented precisely.
After the two-year period, broader eligible rollover options become available. Roth IRAs and designated Roth accounts cannot be rolled into a SIMPLE IRA.
A SEP IRA generally has employer contributions but no regular employee salary deferrals. A SIMPLE IRA has employee deferrals plus required employer funding. A Solo 401(k) is generally limited to a business owner and spouse with no eligible common-law employees and may allow larger contributions or different plan features, but it has more administration and can require Form 5500-EZ.
The best fit depends on employees, compensation, desired contributions, payroll systems, cost, deadlines, and future hiring — not only the headline limit.
California generally follows federal treatment for traditional SIMPLE IRA contributions and distributions, but federal and California basis can differ. California residents generally report taxable retirement income regardless of where the account is held. Part-year residents and nonresidents should review California sourcing and historical contribution treatment.
Heath Income Tax can help a small employer compare retirement plans, calculate owner contributions, and coordinate payroll and tax reporting.
Can a sole proprietor use a SIMPLE IRA?
Yes. A sole proprietor can establish one and is treated as both employer and employee, but must include eligible common-law employees and correctly calculate self-employed compensation.
Can an employer skip the contribution in a bad year?
Generally no. Once the plan is operated for the year, the employer must make the elected match or nonelective contribution under the plan terms.
Are SIMPLE IRA withdrawals tax-free after age 59½?
Not usually. Age 59½ can remove the early-distribution additional tax, but traditional SIMPLE IRA distributions generally remain taxable as ordinary income except for any valid basis recovery.
The definitions and examples on this page are for informational purposes only and do not constitute tax advice. Tax laws change frequently and individual circumstances vary. Consult a qualified tax professional before making decisions based on this content.
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