Maximum 401 K Deferral 2024. Employees age 50 or older may contribute up to an additional $7,500. For 2024, the 401 (k) limit for employee salary deferrals is $23,000, which is above the 2023 401 (k) limit of $22,500.
The dollar limitations for retirement plans and certain other dollar limitations. See 457 (b) plan contribution limits.