2024 Solo 401k Contribution Limits 2024. Contributions to a solo 401k plan must be made by your business tax. For those with a 401(k), 403(b), or 457 plan through an employer, your new maximum contribution limit will go up to $23,000 in 2024.

Therefore, if you were compensated $20,000 from your. Employees can contribute up to $23,000 to their 401(k) plan for 2024 vs.