401k Limits 2024 Catch Up Over 55. For 2024, the maximum amount employees under 50 years old can put in a 401 (k) or similar account is $23,000. Someone age 50 or older can contribute an additional $7,500 (the same limit as in 2024), bringing the 2025 maximum to $31,000.
If you’re age 50 or older, you get to benefit from higher contribution limits to help your retirement accounts catch up. There’s also a $7,500 catch.