2024 2024 K Threshold Limit. 401(k) contribution limits in 2024 and 2025. 1, 2024, these thresholds will drop significantly.
For 2025, the 401(k) limit for employee salary deferrals is $23,500, which is above the 2024 401(k) limit of $23,000. Contribution limits for 401 (k), 403 (b), and most 457 plans, as well as the federal government’s thrift savings plan will also increase by $500 for 2024.