Roth Limits 2024 401k Over 50. Here's how the 401(k) plan limits will change in 2024: As kiplinger has reported, if you are younger than 50, the maximum amount you can contribute to a roth 401(k) for 2024 is $23,000.

Contribution limits are enforced across traditional iras and roth iras, but income limits only apply to roth. The 2024 roth ira income limits are $161,000 for single tax filers and $240,000 for those married filing jointly.