2025 401k Contribution Limit Over 50. The 401(k) contribution limit for 2025 is $23,000 for employee salary deferrals, and $69,000 for the combined employee and employer contributions. Individuals aged 50 and older are allowed to put more money into a 401(k) every year to help them make up for earlier years when they couldn't spare as much.

Individuals aged 50 and older are allowed to put more money into a 401(k) every year to help them make up for earlier years when they couldn’t spare as much. This number only includes personal contributions — employer matches.