Maximum 401k Contribution Limit 2024. Total contributions to a solo 401 (k) cannot exceed $69,000 or $76,500 for those at least aged 50. In 2024, employers and employees together can contribute up to $69,000, up from a limit of $66,000 in 2023.
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. The 401(k) contribution limit is the maximum amount an individual can contribute to their 401(k) retirement account in a calendar year without facing tax penalties.