401k Maximum Contribution 2024 Calculator Online. Use paycheckcity's 401k calculator to see how 401k contributions impact your paycheck and how much your 401k could be worth at retirement. The 2024 contribution limit for 401(k) plans is $23,000, up from $22,500 in 2023.

The contribution limit for 2024 is $23,000 ($22,500 for 2023). A solo 401k allows you to contribute as both.