Finding the best retirement plans for small business owners in 2026 means balancing your personal savings goals, your employees’ needs, state mandate compliance, and cost. This guide compares the four most popular options — SEP IRA, SIMPLE IRA, Solo 401(k), and traditional 401(k) — so you can make the right choice.
The Four Main Retirement Plan Options for Small Businesses
1. SEP IRA (Simplified Employee Pension)
Best for: Self-employed owners or very small businesses with few or no employees.
- 2026 contribution limit: Up to 25% of compensation or $69,000 (whichever is less)
- Setup cost: $0 (very simple)
- Employer required contribution: If you contribute for yourself, you must contribute the same percentage for all eligible employees
- Admin burden: Very low — no Form 5500
- Satisfies state mandates: Yes
- SECURE 2.0 credits: Yes
2. SIMPLE IRA (Savings Incentive Match Plan for Employees)
Best for: Businesses with 5–30 employees that want a low-cost, compliant plan with minimal paperwork.
- 2026 employee contribution limit: $16,500 ($20,000 for 50+)
- Setup cost: $0–$500
- Required employer contribution: 2% non-elective or 3% matching
- Admin burden: Very low — no Form 5500
- Satisfies state mandates: Yes
3. Solo 401(k)
Best for: Self-employed owners with no W-2 employees (except a spouse).
- 2026 contribution limit: Up to $69,000 ($76,500 for 50+) — both employee and employer sides
- Setup cost: Typically free through major brokerages
- Employer contribution: 25% of net self-employment income as profit sharing
- Admin burden: Low (Form 5500-EZ required when assets exceed $250,000)
- Note: Cannot have W-2 employees other than spouse
4. Traditional 401(k)
Best for: Businesses with 10+ employees that want maximum flexibility and contribution limits.
- 2026 employee contribution limit: $23,500 ($31,000 for 50+)
- Setup cost: $500–$2,000
- Employer contribution: Optional, up to 25% of compensation as profit sharing
- Admin burden: Moderate — Form 5500, annual testing
- SECURE 2.0 credits: Up to $5,000/year for 3 years for new plans (full credit for 50 or fewer employees; partial for 51–100)
- Satisfies state mandates: Yes
Comparison: Which Plan Is Right for You?
| Feature | SEP IRA | SIMPLE IRA | Solo 401k | 401(k) |
|---|---|---|---|---|
| 2026 max contribution | $69,000 | $16,500 | $69,000 | $23,500 |
| Satisfies state mandate | * | |||
| Best for employees | 1–5 | 5–30 | Owner only | 10+ |
*Solo 401(k) satisfies mandates for owner-only businesses but cannot cover W-2 employees other than a spouse.
Already have a plan? Check if it qualifies: Already Have a Retirement Plan?
This content is for educational purposes only and does not constitute financial, tax, legal, or investment advice. State requirements and penalties are subject to change. Consult a qualified professional before making compliance decisions.
