How Much Can I Put In 401k In 2024. In 2024, taxpayers can contribute $23,000 to traditional and roth 401(k)s, and $16,000 to simple 401(k)s. In 2024, this rises to $23,000.
The irs sets clear guidelines for 401 (k) contribution limits each. Specifically, for people under age 50 and those 50 or older, the irs has raised the bar on how much you can save.