2024 401k Contribution Limits 2025. 401 (k) contribution limits in 2024 and 2025. The 401 (k) contribution limit increased to $23,500 for 2025, up from $23,000 in 2024.
The irs announced that 401k elective contributions will increase by $500 to $23,500 for 2025. Employees can defer $23,500 into workplace plans, a modest increase from $23,000 in 2024.