Key Takeaways
- SEP-IRA 2024 limit: Lesser of 25% of compensation or $69,000; employer-only contributions with no catch-up option
- SIMPLE IRA 2024 employee deferral: $16,000 base + $3,500 catch-up (age 50+) = $19,500 maximum
- SEP eligibility: 21+ years old, worked 3 of last 5 years, $750+ compensation; deadline is tax filing deadline plus extensions
- SIMPLE IRA requires employer match (dollar-for-dollar up to 3%) OR 2% non-elective contribution for all eligibles
- SIMPLE IRA early withdrawals within first 2 years face 25% penalty (not 10%); employer must have 100 or fewer employees
SEP-IRA & SIMPLE IRA
Both SEP-IRAs and SIMPLE IRAs are designed to provide retirement benefits for small businesses without the administrative complexity of traditional qualified plans like 401(k)s. Understanding the distinctions between these plans is essential for EA exam success and for advising clients on the best retirement vehicle for their situation.
SEP-IRA (Simplified Employee Pension)
A SEP-IRA is an employer-funded retirement plan that allows businesses to make tax-deductible contributions to individual retirement accounts established for employees. It's particularly popular among sole proprietors and small businesses due to its simplicity and high contribution limits.
2024 Contribution Limits
| Contribution Type | 2024 Limit |
|---|---|
| Maximum contribution | Lesser of 25% of compensation OR $69,000 |
| Compensation cap for calculations | $345,000 |
| Catch-up contribution | None available |
Critical Point: Only the employer makes contributions to a SEP-IRA. Employees cannot make elective deferrals. This distinguishes SEP-IRAs from 401(k)s and SIMPLE IRAs.
Self-Employed Contribution Calculation
For self-employed individuals, the contribution calculation is more complex. You cannot simply take 25% of your net self-employment income.
The Self-Employed Formula:
- Start with net self-employment income (Schedule C profit)
- Subtract 1/2 of self-employment tax (the "adjustment")
- Multiply the result by 20% (not 25%)
Why 20% instead of 25%? The contribution itself is a deduction that reduces the compensation base. The math works out to an effective rate of 20% of net earnings after the SE tax adjustment (25% / 125% = 20%).
Example: Sarah has $100,000 net profit from her Schedule C business. Her self-employment tax is $14,130 (calculated on Schedule SE). Her SEP contribution is calculated as:
- Net profit: $100,000
- Less 1/2 SE tax: $100,000 - $7,065 = $92,935
- SEP contribution: $92,935 x 20% = $18,587
Employee Eligibility Requirements
Employers must include all employees who meet all three of these conditions:
| Requirement | Details |
|---|---|
| Age | At least 21 years old |
| Service | Worked for employer in at least 3 of the last 5 years |
| Compensation | Earned at least $750 in 2024 |
Important: Employers can use less restrictive requirements (e.g., include employees immediately) but cannot be more restrictive than the IRS minimums.
The 3-of-5 rule counts any work performed during a year, regardless of hours. Even a summer job counts as a year of service.
Deadline to Establish and Fund
One of the most attractive features of SEP-IRAs is the generous deadline:
- Deadline: Tax filing deadline plus extensions for the business
- For sole proprietors: April 15 (or October 15 with extension) of the following year
- This allows "last-minute" retirement planning after the tax year ends
Example: For 2024 contributions, a sole proprietor filing an extension has until October 15, 2025 to both establish and fund the SEP-IRA.
SEP-IRA Advantages and Disadvantages
| Advantages | Disadvantages |
|---|---|
| High contribution limits ($69,000) | Must cover all eligible employees |
| Simple setup and administration | Employer-only contributions |
| No annual IRS filing requirements | No catch-up contributions |
| Flexible contribution amounts year-to-year | No Roth option |
| Can establish after year-end | Contributions must be uniform % for all |
SIMPLE IRA (Savings Incentive Match Plan for Employees)
A SIMPLE IRA is a retirement plan for small employers (100 or fewer employees) that allows both employee salary deferrals and employer contributions. It's "simpler" than a 401(k) but has lower contribution limits.
2024 Contribution Limits
| Contribution Type | 2024 Limit |
|---|---|
| Employee salary deferral | $16,000 |
| Catch-up contribution (age 50+) | $3,500 |
| Maximum employee contribution (50+) | $19,500 |
| Compensation cap for matching | $345,000 |
SECURE 2.0 Enhancement: Employers with 25 or fewer employees may offer increased limits of $17,600 employee deferral and $3,850 catch-up (10% higher), though most standard plans use the base limits.
Employer Contribution Requirements
Employers must choose one of these two options each year:
Option 1: Matching Contribution
- Match employee contributions dollar-for-dollar up to 3% of compensation
- Can reduce to 2% match for 2 of any 5-year period
Option 2: Non-Elective Contribution
- Contribute 2% of compensation for ALL eligible employees
- Must contribute regardless of whether employee defers
- Based on compensation up to $345,000 cap
Example (Matching): Employee earns $60,000 and defers 5% ($3,000). Employer matches dollar-for-dollar up to 3% = $1,800 (3% of $60,000). Total contribution: $4,800.
Example (Non-Elective): Same employee, employer chooses 2% non-elective. Employer contributes $1,200 (2% of $60,000) even if employee defers nothing.
Employer Eligibility Requirements
| Requirement | Details |
|---|---|
| Size | 100 or fewer employees who earned $5,000+ in prior year |
| No other plans | Cannot maintain another qualified retirement plan |
| Timing | Must be established by October 1 for new plans |
The "100 Employee" Rule: If employer exceeds 100 employees, may continue SIMPLE for 2 additional years as long as contributions continue.
The 25% Early Withdrawal Penalty
This is a critical EA exam topic. SIMPLE IRAs have a special penalty rule:
| Timing of Withdrawal | Penalty (under age 59 1/2) |
|---|---|
| Within first 2 years of participation | 25% early withdrawal penalty |
| After 2 years | Standard 10% early withdrawal penalty |
The 2-year period starts on the date of the employee's first contribution to the SIMPLE IRA (which could be employer or employee contributions).
Warning: During the 2-year period, transfers to another retirement plan type (Traditional IRA, 401(k), SEP) are treated as distributions and may trigger the 25% penalty. Only SIMPLE-to-SIMPLE transfers are penalty-free during this period.
SIMPLE IRA Advantages and Disadvantages
| Advantages | Disadvantages |
|---|---|
| Employees can make own contributions | Lower limits than SEP or 401(k) |
| Required employer contributions | 25% penalty for early withdrawals in first 2 years |
| Simple administration | October 1 deadline to establish |
| No annual IRS filing (under 100) | Cannot maintain other qualified plans |
| Catch-up contributions available | Must cover all eligible employees |
Comprehensive Comparison: SEP vs. SIMPLE vs. Solo 401(k)
| Feature | SEP-IRA | SIMPLE IRA | Solo 401(k) |
|---|---|---|---|
| 2024 Max Contribution | $69,000 | $19,500 (50+) | $69,000 + $7,500 catch-up |
| Employee Contributions | No | Yes ($16,000) | Yes ($23,000) |
| Employer Contributions | Up to 25% of comp | Match or 2% non-elective | Up to 25% of comp |
| Catch-Up (50+) | None | $3,500 | $7,500 |
| Roth Option | No | No | Yes |
| Establishment Deadline | Tax filing + extensions | October 1 | December 31 |
| Who Can Use | Any employer | 100 or fewer employees | Self-employed, no employees |
| Loans Allowed | No | No | Yes |
| Annual IRS Filing | No | No | Yes, if assets > $250,000 |
Which Plan Should Your Client Choose?
SEP-IRA is Best For:
- Self-employed individuals with high income wanting maximum contributions
- Employers who want to contribute for employees but don't want employee deferrals
- Those who need flexibility in contribution amounts year-to-year
- Business owners who want to wait until after year-end to decide on contributions
SIMPLE IRA is Best For:
- Small employers (100 or fewer) who want employees to contribute
- Businesses wanting lower administrative costs than 401(k)
- Employers who prefer predictable matching obligations
- Companies where employees are motivated by ability to defer their own salary
Solo 401(k) is Best For:
- Self-employed with no employees (except spouse)
- Those wanting highest contribution limits with catch-up
- Business owners wanting a Roth option
- Those who may need to borrow from retirement funds
EA Exam Tips: SEP & SIMPLE IRAs
High-Frequency Test Topics:
- SEP contribution calculation for self-employed: Remember the 20% effective rate after SE tax adjustment
- SIMPLE 25% penalty: Within first 2 years, penalty is 25%, not 10%
- Employer contribution requirements: SEP is employer-only; SIMPLE requires match OR 2% non-elective
- Deadlines: SEP can be established by tax deadline + extensions; SIMPLE must be established by October 1
- Eligibility: SEP requires 3-of-5 years and $750 compensation; SIMPLE requires $5,000 prior year earnings
Common Exam Traps:
- Don't confuse SEP's 25% of compensation with the 20% self-employed calculation
- SIMPLE's catch-up is $3,500, not $7,500 (that's 401(k))
- SEP has NO catch-up contributions regardless of age
- The 2-year SIMPLE penalty clock starts with first contribution, not plan establishment
Memory Devices:
- SEP = Simple Employer-only Plan (employer funds it)
- SIMPLE = Small employer, IMmediate Participation, Lower limits, Employee deferrals allowed
Maria is self-employed with $120,000 of net self-employment income after all business deductions. Her self-employment tax is $16,956. What is the maximum she can contribute to her SEP-IRA for 2024?
Tom opened a SIMPLE IRA 18 months ago and received his first employer contribution at that time. He is now 45 years old and wants to withdraw $10,000 to buy a car. What is the early withdrawal penalty?
ABC Company wants to establish a retirement plan for its 50 employees. Which of the following statements is TRUE regarding their options?