2024 Irs 401k Limit. In 2022, the most you can contribute to a roth 401(k) and contribute in pretax contributions to a traditional 401(k) is $20,500. Employer matches don’t count toward this limit.

Those 50 and older can contribute an additional. Workers who contribute to a 401 (k), 403 (b), most 457 plans and the federal government’s thrift savings plan can contribute up to $23,000 in 2024, a $500 increase from the $22,500 limit in 2023.