Irs Contribution Limits 2024 401k. The irs has increased the 401(k) plan contribution limits for 2024, allowing employees to defer up to $23,000 into workplace plans, up from $22,500 in 2023. This amount is up modestly from 2023, when.

The total employee contribution limit to all 401 (k) and 403 (b) plans for those under 50 will be going up from $22,500 in 2023 to $23,000 in 2024 (compare that to the $2,000 it increased. All new limits will go into effect jan.