Maximum Roth 401k Contribution 2024 Fidelity. $19,500 in 2021 (plus an additional. 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.

Those 50 and older can contribute an additional $7,500. The contribution limit on individual retirement accounts will increase by $500 in 2024, from $6,500 to $7,000.