Max 401k 2024 Catch Up. — for 2024, employees can defer up to $23,000 into 401 (k) plans, up from $22,500 in 2023, with an extra $7,500 for workers age 50 and older. There are annual limits to how much you can contribute to your 401 (k).
— contribution limits for a roth 401(k) are the same as a traditional 401(k). Those 50 and older can contribute an additional $7,500.