2024 401k Catch Up Provision. Workers ages 50 and older have a higher annual 401 (k) contribution limit than their younger peers. In 2024, if you’re still working, you can make a maximum annual contribution of $23,500 to your employer’s retirement plan.

For 2024, the maximum you can contribute to a simple 401 (k) is $16,000. In 2024, if you’re still working, you can make a maximum annual contribution of $23,500 to your employer’s retirement plan.