SEP IRA vs Solo 401(k): The Best Retirement Accounts for Freelancers

Last Updated: July 2026

When you’re self-employed, retirement planning feels different. No employer 401(k) match means you have to save more aggressively—and choose the right account structure to maximize tax advantages.

For freelancers with no employees, two options dominate: SEP IRA and Solo 401(k). Both offer significant tax benefits, but the details matter. The 2026 IRS contribution limits have increased, making both options more attractive than ever.

SEP IRA: Simple and Flexible

A Simplified Employee Pension (SEP) IRA is often the best starting point for freelancers. Setup takes minutes with any major brokerage.

2026 Contribution Limits

– Up to 25% of net self-employment income
– Maximum contribution: $72,000 (up from $70,000 in 2025)
– Maximum compensation considered: $360,000
– Contributions are tax-deductible

The Flexibility Advantage

Unlike a traditional 401(k), you’re not required to contribute every year. This matters enormously for freelancers with variable income. Earned $30,000 this year? Contribute $7,500. Earned $120,000 next year? Contribute up to $72,000.

The Catch

SEP IRA contributions count as employer contributions. You must contribute equally for all eligible employees—which limits flexibility if you eventually hire help. Also, SEP IRAs do not offer a Roth option or loan feature.

Solo 401(k): Maximum Savings Potential

The Solo 401(k) (also called Individual 401(k)) lets you contribute as both employee and employer, maximizing your tax-advantaged savings.

2026 Contribution Limits

As employee:
– Up to $24,500 in elective deferrals (up from $23,500 in 2025)
– Catch-up contribution for age 50+: additional $8,000 (up from $7,500)
– Catch-up for ages 60-63: additional $11,250 (SECURE 2.0 provision)

As employer:
– Up to 25% of net self-employment income

Combined maximum: $72,000 ($80,000 if 50+, $83,250 if 60-63)

The Dual-Contribution Edge

This is where Solo 401(k) wins for high earners. If you earn $80,000 net:

– Employee contribution: $24,500
– Employer contribution: $20,000 (25% of $80,000)
– Total: $44,500

A SEP IRA would allow only $20,000 for the same income. That’s a $24,500 difference—money that grows tax-deferred instead of being taxed today.

2026 Roth Solo 401(k) Option

One of the biggest advantages of the Solo 401(k) is the Roth component, which became even more valuable in 2026:

• Tax-free growth and withdrawals: Roth contributions are made after-tax, but all future growth and qualified withdrawals are completely tax-free
• No income limits: Unlike Roth IRAs (which phase out at $150,000-$165,000 for single filers in 2026), Solo 401(k) Roth contributions have no income restriction
• Tax diversification: You can split contributions between pre-tax and Roth within the same plan, hedging against future tax rate changes
• Employer contributions stay pre-tax: Only employee elective deferrals can go to Roth; employer contributions must remain traditional pre-tax
• 2026 Roth limit: Your combined pre-tax and Roth employee contributions cannot exceed $24,500 ($32,500 if 50+, $35,750 if 60-63)

For freelancers who expect to be in a higher tax bracket in retirement—or who simply want tax-free income later—the Roth Solo 401(k) is a powerful tool that SEP IRAs cannot match.

Additional Solo 401(k) Benefits

– Loan feature: Borrow up to 50% of your balance or $50,000, whichever is less
– Profit sharing: Variable employer contributions based on business performance
– Checkbook control: Some providers offer self-directed Solo 401(k)s with checkbook control for alternative investments like real estate
– Creditor protection: Retirement assets are protected under federal bankruptcy law

Side-by-Side Comparison (2026)

Which Should You Choose?

Choose SEP IRA if:

– You want maximum simplicity
– Your income varies significantly year to year
– You value flexibility over contribution limits
– You’re just starting as a freelancer
– Your net income is under $60,000 (where the dual-contribution advantage is minimal)

Choose Solo 401(k) if:

– Your net self-employment income exceeds $80,000
– You want Roth flexibility for tax diversification
– You value the loan option as an emergency backstop
– You’re serious about maximizing retirement savings
– You’re 50+ and want the $8,000 catch-up (SEP IRA has no catch-up)

The Pro Move: Both

Many freelancers use both accounts strategically. A SEP IRA at a low-cost brokerage like Vanguard provides simple, reliable savings. A Solo 401(k) with Roth capabilities at Fidelity or Schwab allows you to optimize tax strategy year by year.

Important: Your total combined contributions across both plans cannot exceed $72,000 (or $80,000 with catch-up) for 2026. The IRS limits apply per individual, not per plan.

2026 IRS Updates to Know

• Higher limits: Both SEP IRA and Solo 401(k) max contributions increased to $72,000 (from $70,000 in 2025)
• Higher employee deferral: Solo 401(k) employee deferrals rose to $24,500 (from $23,500)
• Increased catch-up: The 50+ catch-up increased to $8,000 (from $7,500)
• SECURE 2.0 super catch-up: Ages 60-63 can contribute an extra $11,250 (unchanged from 2025)
• Higher compensation cap: Maximum compensation for calculations rose to $360,000 (from $350,000)
• IRA limit increase: Traditional/Roth IRA limit is $7,500 for 2026 with $1,100 catch-up

Getting Started Today

Opening either account takes under 30 minutes:

1. Choose a brokerage: Vanguard, Fidelity, and Schwab all offer excellent low-cost index funds
2. Complete IRS Form 5305-SEP (SEP IRA) or Form 5305-E (Solo 401(k))
3. Set up automatic contributions: Even $200/month builds over time
4. Adjust annually: Increase contributions as income grows

The best retirement account is the one you actually use. Start with whichever feels manageable and increase contributions every time you get a raise or land a bigger project.

The Bottom Line

For most freelancers, Solo 401(k) offers superior long-term savings potential—especially with the 2026 Roth option and higher catch-up limits. But SEP IRA’s simplicity makes it the better choice if complex account management would cause you to delay.

Either way, the tax savings are substantial. At a 24% marginal rate, $72,000 in contributions saves $17,280 in federal taxes—plus reduced self-employment tax on the deductible portion. With 2026’s higher limits, there’s never been a better time to maximize your retirement savings.

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Related reading: How to Choose the Right Business Entity for Your Freelance Business