401k Contribution Limits 2024 Catch Up Total Income. Workers who contribute to a 401 (k), 403 (b), most 457 plans, and the federal. Those 50 and older can contribute an additional $7,500.

 — for 2024, the employee contribution limit for 401 (k) plans is $23,000, up from $22,500 in 2023.  — the irs has officially announced the 401k and ira contribution limits for the year 2024.