2024 401k Catch Up Rules. The 2024 contribution limit for 401(k) plans is $23,000, up from $22,500 in 2023. This means you will not get the tax benefit.
The 401(k) contribution limit for 2024 is $23,000 for employee contributions, and $69,000 for the combined employee and employer contributions. However, beginning in 2026, you’ll need to make under $145,000 to be.