Maximum Roth 401k Contribution 2024 Maximum. 5 sticking with our example above,.  — the 2024 401(k) contribution limit is $500 higher than this year’s $22,500 max, which reflected a major increase from the 2022 limit of $20,500.

 — the roth ira contribution limit for 2024 is $7,000 for those under 50, and $8,000 for those 50 and older.  — the 2024 contribution limit for 401(k) plans is $23,000, up from $22,500 in 2023.