2024 401k Limits Contribution. Simple retirement plan contribution limits increased to $16,000 in 2024 (up from $15,500 in 2023). For 2025, the 401 (k) limit for employee salary deferrals is $23,500, which is above the 2024 401 (k) limit of $23,000.
Anyone over the age of fifty can contribute an additional $7,500, which is the same as 2024. 2025 is also the first year that a.