401k Catch Up Contribution Limit 2024 Over 50. If you are 50 or older, you can defer paying income tax on $30,000 in your 401 (k). For 2024, the maximum you can contribute from your paycheck to a 401 (k) is $23,000.

For individuals under 50, the standard 401(k) contribution limit in 2024 23,000. The contribution limit for simple 401 (k)s is $16,000 (up to $19,500 if you’re 50 or older).