Maximum 401k Contribution 2024 50+. The roth 401 (k) contribution limit for 2024 is $23,000 for employee contributions and $69,000 total for both employee and employer contributions. The basic employee contribution limit for 2024 is $23,000 ($22,500 for 2023).

The overall 401 (k) limits for employee and employer. 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.