401k Limits 2025 50 Year Rule. The contribution limits for individual. As kiplinger has reported, if you are younger than 50, the maximum amount you can contribute to a roth 401(k) 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. For the year 2025, the contribution limit for 401(k) plans is $23,000 for individuals under age 50 and $30,500 for those 50 and older.