Roth Contribution Limits 2024 Income. — 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. The limit increased to $7,000 for 2024, with an extra $1,000 for investors.
— the 401 (k) contribution limits for 2024 are $23,000 for individuals under 50, and $30,500 for those 50 and older. — the irs occasionally adjusts the modified agi limits and the contribution limits to keep pace with inflation.