401k 2025 Contribution Limits Over 50. In 2025, if you are over 50 years old, the federal government allows you to defer $23,500. The contribution limit will increase to $23,500, up from $23,000 in 2025.
The 401k contribution limits for the year 2025 are expected to see many increases in different plans including elective deferral limit to $24,000, defined contribution plan to. Employee contribution limits go up $500 more in 2025, to $23,500 from $23,000.