Max 401k 2025 Contribution Limit Irs. 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 2025. For 2025, the employee contribution limit for 401(k) plans is $23,000, up from $22,500 in 2023.

In 2025, employees and employers can contribute a. 401 (k), 403 (b), most 457 plans, thrift savings plan.