2024 401 K Catch Up Contribution Limit. Changes in inflation affect the limits, which. For those with a 401 (k), 403 (b), or 457 plan through an employer, your new maximum contribution limit will go up to.

If you are 50 or older, you can defer paying income tax on $30,000 in your 401. This means that your total 401 (k) contribution limit for 2024 is $30,500.