Small business owners and self-employed individuals have several retirement plan options to save for retirement while reducing taxable income. Each plan differs in contribution limits, tax treatment, and administrative complexity.
Key Small Business Retirement Plan Options
- SEP IRA (Simplified Employee Pension): Designed for self-employed individuals and small businesses. Employer-funded contributions only.
- SIMPLE IRA (Savings Incentive Match Plan for Employees): For businesses with ≤100 employees, includes employer matching or discretionary contributions.
- Solo 401(k): For self-employed business owners with no employees other than a spouse, allowing both employee deferral and employer contributions.
- Defined Benefit Plan (DB Plan): Provides guaranteed retirement income, ideal for high-income small business owners seeking maximum contributions.
Comparative Chart
| Plan Type | Eligibility | Contribution Limit (2025) | Employer Contribution | Employee Contribution | Tax Treatment | Advantages | Disadvantages |
|---|---|---|---|---|---|---|---|
| SEP IRA | Self-employed, small business | 25% of net earnings, max $66,000 | Employer funded only | N/A | Tax-deductible contributions, tax-deferred growth | High contribution limits; simple setup | Employer must contribute equally to all employees |
| SIMPLE IRA | Businesses with ≤100 employees | $16,000 + $3,500 catch-up (50+) | 2% fixed or 3% discretionary | Elective deferral | Pre-tax contributions, tax-deferred growth | Easy to administer; low cost | Lower contribution limits than SEP or Solo 401(k) |
| Solo 401(k) | Self-employed, no full-time employees except spouse | Employee: $23,000 + $7,500 catch-up; Employer: up to 25% net earnings; Total max $66,000 ($73,500 with catch-up) | Employer contribution | Employee deferral | Pre-tax or Roth options; tax-deferred growth | High contribution limits; flexible investments | Requires annual filing if assets > $250,000 |
| Defined Benefit | Self-employed, high-income | Actuarially calculated; can exceed $100,000 | Employer funded | N/A | Tax-deductible; fixed retirement benefit | Very high contributions; predictable income | Complex administration; actuarial costs |
Observations
- SEP IRA: Best for simple, high-contribution plans without employee deferrals.
- SIMPLE IRA: Suitable for small businesses with employees, offering minimal administrative work.
- Solo 401(k): Ideal for self-employed individuals seeking high contributions and flexible investment options.
- Defined Benefit Plans: Best for high-income small business owners seeking guaranteed retirement income.
This chart allows small business owners to compare plan types quickly, evaluate contribution potential, tax benefits, and administrative requirements, and choose a plan aligned with business and retirement goals.
