Solo 401k Contribution Limits 2024. 2024 solo 401 (k) contribution limits explained. The 2024 contribution limit for 401(k) plans is $23,000, up from $22,500 in 2023.

The total solo 401(k) contribution limit is up to $69,000 in 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.