Tax Concepts

Solo 401(k)

Retirement plan for self-employed individuals with no employees other than spouse.

Reviewed 9 August 2026 by Keiron Brown, Founder & Editor, CalculateRealEstateROI · Educational estimates only — not investment, financial, tax, or legal advice

Plain-English explanation

$70k+ annual contribution potential; can invest in real estate; no UBIT on leverage.

Examples

Self-employed investor contributing $66k annually to Solo 401(k).

Common mistakes

Adding non-spouse employees and disqualifying the plan.

Solo 401(k)

Plain-English explanation

Examples

Common mistakes

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