A Solo 401(k) (also Individual 401(k)) is a retirement plan for self-employed individuals with no employees other than a spouse. It allows higher contributions than SEP-IRA at lower income levels by combining employee ($24,000 for 2026 + $7,500 catch-up at 50+) and employer (25% of net SE income) contributions, up to the $70,000 total cap. Roth Solo 401(k) options are available — letting high earners stash Roth dollars they can't reach via Roth IRA. Setup requires more paperwork than SEP-IRA and annual Form 5500 if assets exceed $250K. Loans permitted (up to 50% of balance, max $50K).
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Solo 401(k)
August 22, 2026 · Aditya Gupta
Personal Finance
Related terms
403(b)
A 403(b) plan is a retirement plan for employees of public schools, nonprofit hospitals, charities, and religious organizations…
457(b)
A 457(b) plan is a retirement plan for state and local government employees and certain nonprofit employees. Unique…
Annuitization
Annuitization is the process of converting a lump sum (or accumulated annuity value) into a guaranteed income stream,…
Annuity
An annuity is an insurance contract paying a stream of income, often for life — designed to provide…
Backdoor Roth Conversion
The Backdoor Roth Conversion strategy enables high earners who exceed Roth IRA income limits to fund a Roth…
Beneficiary IRA
A Beneficiary IRA (Inherited IRA) is a retirement account inherited from a deceased owner. Post-SECURE Act 2019, most…
