2024 Max Roth 401k Contribution Limits Irs. In 2024, the contribution limit for a roth 401 (k) is $23,000, plus an additional contribution of $7,500 if you are age 50 or older. Subtract from the amount in (1):

The contribution limit for 401 (k)s, 403 (b)s, most 457 plans and the federal government’s thrift savings plan is $23,000 for 2024, up from $22,500 in 2023. This amount is up modestly from 2023, when the individual.