2025 401k Limits 2025. 401k and retirement plan limits for the tax year 2025. In 2025, the 401 (k) contribution limit for participants is increasing to $23,500, up from $23,000 in 2024.
The thing is, it only applies to a specific set of investors. The irs announced that 401k elective contributions will increase by $500 to $23,500 for 2025;