Roth 401k Contribution Limits 2025 Catch Up. For 2025, the contribution limit to 401(k) plans has increased to $23,500. The limit on contributions by employees who participate in 401(k), 403(b), most 457 plans, and the federal government’s thrift savings plan increases in 2025 to $23,500 up from $23,000 in.

The limit on contributions by employees who participate in 401(k), 403(b), most 457 plans, and the federal government’s thrift savings plan increases in 2025 to $23,500 up from $23,000 in. Employee contribution limits go up $500 more in 2025, to $23,500 from $23,000.