2025 401k Contribution Maximum. Most employers that offer 401 (k). You can invest up to $23,000 in 401(k) plans in 2025, and anyone age 50 or older can put in an extra $7,500.

What are the 401(k) contribution limits for 2025? Employees can invest more money into 401(k) plans in 2025, with contribution limits increasing from 2023’s $22,500 to $23,000 for 2025.