Solo 401 K Contribution Limits 2024 Olympics. The 401 (k) contribution limit for individuals has been increased to $23,000 for 2024. For those who are age 50 or over at any time.
The contribution limit for simple 401 (k)s is $16,000 (up to $19,500 if you’re 50 or older). While much of the solo 401(k) rules and regulations mirror those of the standard 401(k), there is a difference between the contribution limits in the two plans.