Solo Roth 401k Contribution Limits 2025. You can make solo 401 (k) contributions as both the employer and employee. Divide your account balance by the distribution period (life expectancy factor).
As kiplinger has reported, if you are younger than 50, the maximum amount you can contribute to a roth 401(k) for 2025 is $23,000. For 2025, the max is $69,000 and $76,500 if you are 50 years old or older.
