Max Limit 401k 2024. In 2025, 401(k)s max out at $23,500 for workers under 50, while older workers get a higher limit. In 2024, both the traditional 401(k) and roth 401(k) have a contribution limit of $23,000, while simple 401(k) has a limit of $16,000.
For those with a 401(k), 403(b), or 457 plan through an employer, your new maximum contribution limit will go up to $23,000 in 2024. Before exploring how to max out your contributions, itโs helpful to understand how much you can contribute.