401k Max 2025 After Tax Filing. For 2025, the maximum allowable contribution to a 401 (k) is $23,000 per year (up from $22,500 in 2025). Some 401(k)s allow added savings.

The simple ira and simple 401 (k) contribution limits will increase from $15,500 in 2025 to $16,000 in 2025. For 2025, the contribution limit is $22,500 and for 2025, the employee contribution limit is $23,000.