Irs 401k 2025 Limits. The 401 (k) contribution limits for 2025 are $23,000 for individuals under 50, and $30,500 for those 50 and older. Starting in 2025, employees can contribute up to $23,000 into their 401(k), 403(b), most 457 plans or the thrift savings plan for federal employees, the irs announced nov.

Do you have retirement planning questions? The limits differ depending on the type of plan.