2024 401k Limits Contribution Tax. Employees can invest more money into 401(k) plans in 2024, with contribution limits increasing from $22,500 in 2023 to $23,000 in 2024. With contributions, you begin putting newly earned income into a roth ira.
— that compares with the $500 boost seen in 2024 over 2023. — the 2024 contribution limit for 401(k) plans is $23,000, up from $22,500 in 2023.