Maximum 401k Contribution 2024 Over 55 Years. For 2024, the 401(k) limit for employee salary deferrals is $23,000, which is above the 2023 401(k) limit of $22,500. Use our calculator to estimate your future balance.

Those 50 and older will be able to. 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.