2024 Max 401k Contribution Limits Catch Up 2024. In 2023, this rises to $22,500. Of note, the 2024 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 2024, the maximum you can contribute to a simple 401 (k) is $16,000. For 2024, the 401 (k) contribution limit for employees is $23,000, or $30,500 if you are age 50 or older.