Solo 401(k) Guide for Self-Employed
A Solo 401(k), also called an Individual 401(k), is designed for self-employed individuals and small business owners with no employees (except a spouse). It offers the highest contribution limits of any retirement account.
2026 Contribution Limits
$24,500
Employee Contribution
25%
Employer (% of net income)
$72,000
Combined Maximum
$80,000
With Catch-Up (50+)
Solo 401(k) vs SEP IRA
| Feature | Solo 401(k) | SEP IRA |
|---|---|---|
| Employee Contribution | Yes ($24,500) | No |
| Employer Contribution | Up to 25% | Up to 25% |
| Roth Option | Yes | No |
| Loan Provision | Yes ($50,000 max) | No |
| Setup Complexity | Moderate | Simple |
Frequently Asked Questions
Self-employed individuals with no full-time employees other than a spouse. This includes freelancers, consultants, sole proprietors, single-member LLCs, and independent contractors.
Yes! If your spouse works in the business, they can also contribute up to $24,500 as an employee, plus receive employer contributions. This effectively doubles the household contribution potential.