2024 401k Catch Up Contribution Limit. The limit on annual i.r.a. Starting in 2024, employees can contribute up to $23,000 into their 401 (k), 403 (b), most 457 plans or the thrift savings plan for federal employees, the irs announced nov.

For 2024, the maximum you can contribute from your paycheck to a 401 (k) is $23,000. 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.