Projected 2024 401k Contribution Limits. This year, defined contribution plans got a historic contribution limit. Workers who contribute to a 401 (k), 403 (b), most 457 plans and the federal government’s thrift savings plan can contribute up to $23,000 in 2024, a $500 increase.
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. That means a new 401 (k) contribution limit of $23,000 for 2024.