C2024 Solo Roth 401k Contribution Limits. In 2024, you can contribute $23,000 to the roth portion of your solo 401 (k). Join mat sorensen and nate hare as they tear apart the complexities of contribution rules, deadlines, and benefits associated with solo 401(k)s.
Individuals can contribute up to $23,000 total into their traditional or roth 401 (k) plans in 2024, no matter how high their income is that year. In 2024, the contribution limit for a roth 401 (k) is $23,000, plus an additional contribution of $7,500 if you are age 50 or older.