401k Max Contribution 2024 After Tax. Employees can invest more money into 401(k) plans in 2024, with contribution limits increasing from $22,500 in 2023 to $23,000 in 2024. For those with a 401 (k), 403 (b), or 457 plan through an employer, your new maximum contribution limit will go up to $23,000 in 2024.

For the tax year 2024, the maximum amount that an employee can contribute to their 401(k) retirement plan is $23,000. Total 401 (k) plan contributions by an employee and an employer cannot exceed $69,000 in 2024.