401k Max 2024 After Tax. Total 401 (k) plan contributions by an employee and an employer cannot exceed $69,000 in 2024. In 2023, the most you can contribute to a roth 401 (k) and contribute in pretax contributions to a traditional 401 (k) is $22,500.

In 2024, the 401 (k) contribution limit for participants is increasing to $23,000, up from $22,500 in 2023. In 2024, you are allowed to defer only up to $23,000 in salary (or $30,500 for those 50 or older) to a traditional or roth 401 (k) for full tax benefits.