2024 401k Catch Up Contribution Limits. 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. 401k contribution limits 2024 catch up total tax liability susy tanhya, the internal revenue service (irs) raised the annual contribution limits for 2024 to $23,000, which amounts to a cost.
An employee can contribute $23,000 in 2024 and an additional $7,500 for those who are age 50 and over. In 2023, this rises to $22,500.