Roth 2025 Max Contribution. To be eligible to contribute the maximum amount in 2025, your modified adjusted gross income (magi) must be less than $146,000 (up from $138,000 last year) if single or. $8,000 if you're age 50 or older.
In 2025, 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. Here are more details on the contribution limit and how you can take advantage of this.