2025 401k Contribution Limits. The 401 (k) contribution limit for 2025 is $23,000. On nov., 1, 2023, the irs boosted annual contribution limits for 2025 for 401 (k), 403 (b), and most 457 plans.

Employees will be able to sock away more money into their 401 (k)s next year. Workers who contribute to a 401 (k), 403 (b), most 457 plans and the federal government’s thrift savings plan can contribute up to $23,000 in 2025, a $500 increase.