2024 401k Limits And Matching. Most limits related to retirement plans will be slightly increased. Most people don't max out their 401(k).
The maximum you can contribute to your 401(k) in 2024 is $23,000 if you’re under age 50, or $23,500 in 2025. The 401(k) contribution limit increased to $23,500 for 2025, up from $23,000 in 2024.