2024 Max 401k Contribution 50 Year Olds. In 2025, that limit rises to $23,500. 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 announced nov.

For 2024, the limit for 401 (k) plan contributions is $23,000, up from $22,500 last year, according to the irs. 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 announced nov.