2024 401k Catch Up Contribution Limit Over 50. So, according to the contribution limits for a 401 (k),. For the 2024 tax year, you can save a maximum of $23,000 in a roth 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. The 401 (k) contribution limit is $23,000 in 2024.