Whether you're a full-fledged small-business owner or you just run a business on the side, there are several smart ways to save for retirement that are specifically designed for the self-employed. Here's a comparison of three popular self-employed retirement savings plans: the solo 401(k), the SEP IRA and a SIMPLE IRA. See which option is right for your retirement planning needs.
Solo 401(k)
Works well for: A self-employed business owner with no employees or a worker participating in an employer’s 401(k) who also has a side business.
How much you can contribute: As an employee, you can contribute up to $18,500 for 2018, plus up to $6,000 extra if you are 50 or older. As a sole proprietor, you can contribute 20% of your company’s net earnings. For 2018, total contributions can’t exceed $55,000 (not counting the catch-up contribution).
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Maximize it: If you have a side gig and work for a company with a retirement plan, contribute to both.
How much it costs: There’s usually no annual maintenance fee, but you’ll need to file an annual IRS Form 5500 if your plan assets exceed $250,000.
SIMPLE IRA
Works well for: Self-employed people with fluctuating incomes (such as real estate agents) or a business with 100 or fewer employees. Both employer and employee can contribute.
How much you can contribute: Up to $12,500 in salary deferrals, or $15,500 if 50 or older. Employers match employee contributions up to 3% of compensation, which can be reduced to 1% in any two out of five years. Or an employer can contribute 2% of each employee’s compensation, up to $5,500.
Maximize it: Some firms start out with a SIMPLE IRA and then change to a 401(k) when they have more employees or want to match more than the 3% limit in a SIMPLE plan.
How much it costs: Costs vary by plan provider. Fidelity, for example, charges an annual fee of $25 per participant, or a $350 plan fee.
SEP IRA
Works well for: A small business with only a few employees or a self-employed owner who might have made a nice profit last year but needs more time to establish a plan. (You have until October 15, 2018, to set up a plan for 2017. Other plans must be set up by the end of the year for which contributions are made.)
How much you can contribute: No employee contributions. You as the employer can contribute up to 20% of your net income, to a maximum of $55,000.
Maximize it: Only the employer can contribute. Whatever percentage you select, you must contribute the same percentage of compensation for each employee.
How much it costs: There often is no setup or annual maintenance fee. Check with brokerage and mutual fund companies that sponsor SEPs.
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SEP IRA Contribution Limits for 2025SEP IRA A good option for small business owners, SEP IRAs allow individual annual contributions of as much as $70,000 in 2025, up from $69,000 in 2024.
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Roth IRA Contribution Limits for 2025Roth IRAs Roth IRA contribution limits have gone up. Here's what you need to know.
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SIMPLE IRA Contribution Limits for 2025simple IRA The SIMPLE IRA contribution limit increased by $500 for 2025. Workers at small businesses can contribute up to $16,500 or $20,000 if 50 or over and $21,750 if 60-63.
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457 Contribution Limits for 2024
retirement plans State and local government workers can contribute more to their 457 plans in 2024 than in 2023.
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Roth 401(k) Contribution Limits for 2025retirement plans The Roth 401(k) contribution limit for 2025 increased, and workers who are 50 and older can save even more.
