2025 401k Contribution Limits 2025 Over 50. For 2025, you can defer up to $23,500 into 401(k) plans, up from $23,000 in. Employee contribution limits go up $500 more in 2025, to $23,500 from $23,000.

For those who are age 50 and older, you can contribute an additional $1,000 annually, bringing. For 2025, the employee contribution limit will rise to $23,500.