2024 401k Contribution Limit Irs. Here's how the 401 (k) plan limits will change in 2024: This amount is an increase of $500 from the 2023 401 (k).

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. In 2024, the contribution limit for a roth 401 (k) is $23,000, plus an additional contribution of $7,500 if you are age 50 or older.