401k Maximum 2024 Catch Up Period. Those 50 and older can contribute an additional $7,500. In 2024, the 401 (k) contribution limit is $23,000.
That limit also applies to 457, 403 (b) and the federal government’s thrift. Employees can invest more money into 401 (k) plans in 2024, with contribution limits increasing from $22,500 in 2023 to $23,000 in 2024.