IRS Publication 4285 – In the world of retirement planning for small businesses and self-employed individuals, the Simplified Employee Pension (SEP) plan stands out as a straightforward and flexible option. IRS Publication 4285 serves as a vital tool for employers to ensure their SEP plans remain compliant with federal regulations. This checklist helps identify potential issues in plan setup, eligibility, contributions, and overall operation. Whether you’re a small business owner or a solopreneur, understanding this publication can help you maximize tax advantages while avoiding costly mistakes. In this article, we’ll break down the essentials of IRS Publication 4285, including an updated SEP checklist with the latest 2026 limits, eligibility rules, and practical tips.
What Is a Simplified Employee Pension (SEP) Plan?
A SEP plan is an employer-sponsored retirement savings vehicle that allows businesses to contribute to traditional Individual Retirement Accounts (IRAs) on behalf of employees, including the owner. Unlike more complex plans like 401(k)s, SEPs have minimal administrative requirements, no annual filing obligations with the IRS (such as Form 5500), and contributions that are tax-deductible for the employer. Employees benefit from immediate 100% vesting, meaning they own the contributions right away.
SEPs are ideal for small businesses, freelancers, and gig economy workers because they offer high contribution limits without the hassle of matching employee deferrals. Employers can contribute up to 25% of an employee’s compensation, making it a powerful tool for retirement savings. However, contributions must be uniform across all eligible employees as a percentage of pay.
Key Eligibility Requirements for SEP Plans in 2026
To participate in a SEP, employees must meet specific criteria. Employers can set less restrictive rules but not more stringent ones. Here’s what qualifies an employee:
- Age Requirement: Must be at least 21 years old.
- Service Requirement: Must have worked for the employer in at least 3 of the immediately preceding 5 years.
- Compensation Threshold: Must have received at least $800 in compensation from the employer during the year (up from $750 in prior years).
Certain employees can be excluded, such as those covered by union agreements where retirement benefits were negotiated in good faith, or nonresident aliens without U.S.-sourced income. For self-employed individuals, eligibility is based on net earnings from self-employment after deductions for self-employment taxes and contributions.
If your business owns or is affiliated with other entities (e.g., through family members), employees from those businesses may need to be included in eligibility determinations to avoid compliance issues.
2026 Contribution Rules and Limits
Contributions to a SEP are made solely by the employer and deposited into each eligible employee’s SEP-IRA. Key rules include:
- Uniform Percentage: Contributions must be the same percentage of compensation for every eligible employee.
- Compensation Definition: Generally includes wages, bonuses, and commissions. For self-employed individuals, it’s net earnings minus half of self-employment taxes and the SEP contribution itself.
- Annual Limits:
- Maximum contribution per employee: The lesser of 25% of compensation or $72,000.
- Maximum compensation considered: $360,000.
- Deductibility: Employer contributions are deductible as a business expense, and employees exclude them from gross income. No withholding for federal income tax, Social Security, Medicare, or FUTA taxes applies.
- Flexibility: You don’t have to contribute every year, but when you do, include all eligible employees—even those who left mid-year or passed away.
For 2026, these limits reflect cost-of-living adjustments announced by the IRS. Excess contributions over these limits are taxable and may incur penalties.
| SEP Plan Element | 2026 Limit |
|---|---|
| Minimum Compensation for Eligibility | $800 |
| Maximum Compensation for Calculations | $360,000 |
| Maximum Contribution per Employee | $72,000 (or 25% of compensation, whichever is less) |
The SEP Checklist from IRS Publication 4285
IRS Publication 4285 provides a simple, six-question checklist to review your plan annually. It’s not exhaustive but highlights common pitfalls. Answer “yes” to each for a more compliant plan—though even all “yeses” don’t guarantee full compliance. Use it as a starting point, and consult a tax advisor for in-depth reviews. Here’s the checklist with explanations and 2026 updates:
- Has your SEP been amended for current law?
Retirement laws evolve, so update your plan document (e.g., Form 5305-SEP) to reflect changes like new contribution limits. Failure to amend can lead to disqualification. Check IRS resources for updates. - Is the business that the SEP covers the only business you own?
If you or family members own related businesses, their employees may count toward your SEP eligibility. This prevents undercoverage and ensures uniform treatment. - Are all eligible employees participating in the SEP?
Include anyone meeting the age 21, 3-of-5-years service, and $800 minimum compensation thresholds. Excluding eligible employees is a common error that can be fixed via the IRS Employee Plans Compliance Resolution System (EPCRS). - Are you determining each eligible employee’s compensation using the definition in your SEP document?
Compensation caps at $360,000 for 2026 and includes bonuses/commissions. Use the plan’s exact definition to avoid miscalculations. - Are contributions to each participant’s SEP-IRA a uniform percentage of the participant’s compensation?
All contributions must be proportional—no favoritism. This ensures nondiscrimination. - Are SEP contributions to each participant’s IRA limited as required by the Internal Revenue Code?
Stick to the $72,000 (or 25% of compensation) max. Contributions go to traditional IRAs only.
If you answer “no” to any, investigate and correct promptly. The IRS offers self-correction options without penalties through www.irs.gov/fixmyplan.
How to Set Up and Operate a SEP Plan?
Setting up a SEP is simple:
- Adopt a Written Agreement: Use IRS Form 5305-SEP or a prototype from a financial institution.
- Inform Employees: Provide copies of the agreement, eligibility details, and annual contribution notices.
- Establish SEP-IRAs: For each employee at a bank, brokerage, or similar.
Operate by making contributions by your tax return due date (including extensions). Employees handle their own investments, and withdrawals follow traditional IRA rules (taxable, with 10% early withdrawal penalty before age 59½).
Common Mistakes and Fixes
From IRS Fix-It Guides, frequent issues include excluding eligible employees, incorrect compensation calculations, and missing amendments. Use Publication 4285 alongside Publication 560 (Retirement Plans for Small Business) for detailed guidance. Corrections via EPCRS can avoid audits and fees.
Why Annual Reviews Matter
With laws changing frequently—like the 2026 limit increases—regular checkups using Publication 4285 keep your SEP compliant and optimize benefits. This not only secures your retirement but also attracts talent by offering robust savings options. For personalized advice, contact the IRS at 877-829-5500 or visit www.irs.gov/retirement. Download Publication 4285 directly from the IRS website to start your review today.