2025 401k Contribution Limits 2025 Over 50. The 401 (k) contribution limit for 2025 is $23,000. Of note, the 2025 pretax limit that applies to elective deferrals to irc section 401 (k), 403 (b) and 457 (b) plans increased from $22,500 to $23,000.

Contributions to 401 (k)s can be automatically deducted from your paycheck. For 2025, the 401(k) contribution limit for employees is $23,000, or $30,500 if you are age 50 or older.