2024 401k Maximum Deferral. I estimate it will go up by $1,000 to $24,000 in 2025 (or $23,500. Here are the 2024 401k contribution limits.
To maximize your retirement savings, contribute as much as possible to the plan up to the 2024 allowed limits of: Starting in 2024, employees can contribute up to $23,000 into their 401(k), 403(b), most 457 plans or the thrift savings plan for federal employees, the irs.