2025 Solo 401k Contribution Limits 2025. Self employment income compensation limits for 2023 and 2025. See the limits for traditional 401(k)s, roth 401(k)s, employer contributions, and profit sharing.

The 2025 contribution limit for 401(k) plans is $23,000, up from $22,500 in 2023. The 401(k) contribution limit is $23,000.