Solo 401k Contribution Limits 2024. Use the solo 401 (k) contribution comparison to estimate the potential contribution that can be made to a solo 401 (k) plan, compared to profit sharing, simple, or sep plan. The total contribution limit for a solo 401 (k) in 2024 is $69,000 if you're younger than 50.

The 401 (k) contribution limits for 2024 are $23,000 for individuals under 50, and $30,500 for those 50 and older. Total contributions to a solo 401(k) cannot exceed $66,000 or $73,500 for those at least aged 50.