2024 401k Limits Catch Up. Employees can contribute up to $23,500 to their 401 (k) plan for 2025 vs. For 2024 and 2025, you can contribute an additional $7,500 to traditional and roth 401 (k) accounts and $3,500 to a simple 401 (k).

For 2024 and 2025, you can contribute an additional $7,500 to traditional and roth 401 (k) accounts and $3,500 to a simple 401 (k). The limit for overall contributions—including the employer match—is 100% of your compensation or $69,000,.