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Retirement & Wealth

Solo 401(k) or SEP-IRA: Which One Could Save You More in Taxes?

Many self-employed NPs choose a SEP-IRA because it's simple — but depending on your income, a Solo 401(k) may allow you to contribute significantly more while reducing taxable income.

Nicholas R. Webb, DNP, PMHNP, Esq., EA·June 10, 2026· 2 min read
Solo 401(k) or SEP-IRA: Which one could save you more in taxes?Watch on YouTube

Are you contributing to a SEP-IRA when a Solo 401(k) might be a better fit?

Many self-employed nurse practitioners, healthcare professionals, and business owners choose a SEP-IRA because it's simple and easy to set up. However, depending on your income, a Solo 401(k) may allow you to contribute significantly more toward retirement while reducing your taxable income.

The Key Difference

One of the biggest differences is that a Solo 401(k) allows you to contribute as both the employee and the employer. This can create opportunities for larger retirement contributions, especially for business owners who want to accelerate their retirement savings while maximizing tax benefits.

A Solo 401(k) may also offer additional flexibility, including:

  • Higher contribution potential at certain income levels
  • Potential Roth contribution options
  • Loan provisions that may be available under some plans
  • Greater control over retirement planning strategies

SEP-IRA Still Has Its Place

That doesn't mean a SEP-IRA is a bad option. In fact, for some business owners, a SEP-IRA may be the simpler and more practical choice. The key is understanding which retirement plan aligns best with your income, business structure, and long-term financial goals.

The right retirement strategy isn't just about saving for the future — it's also about making informed decisions that can help reduce taxes today.

If you're a nurse practitioner, healthcare professional, or small business owner, it's worth reviewing whether your current retirement plan is helping you maximize both tax savings and wealth-building opportunities.

Disclaimer: This article is for educational purposes only and does not constitute tax, legal, or financial advice. Tax rules change and individual situations vary. Consult a qualified tax professional regarding your specific circumstances before making financial decisions.
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Nicholas R. Webb, DNP, PMHNP, Esq., EA
NursePracTax — Tax strategy built for clinicians.

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