401k Catch Up 2024 Contribution Limit Irs. This dollar amount is the same as in 2023. 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.
One way employers determine matching contributions is to match a percentage of an employee’s contribution, up to a certain limit. This dollar amount is the same as in 2023.