Solo 401k Contribution Limits 2024 Irs. 2024 health savings account (hsa) contribution. Find out how much you can contribute to your solo 401k with our free contribution calculator.
— the 401 (k) contribution limits for 2024 are $23,000 for individuals under 50, and $30,500 for those 50 and older. $23,000 as an employee contribution and $30,500 for those over 50.