401k Contribution Limits 2025 Fidelity Tax.  — the simple ira and simple 401 (k) contribution limits will increase from $15,500 in 2023 to $16,000 in 2025. Contribution limits apply to both employee and employer contributions.

The 2025 limit on how much you can contribute to your 401 (k) is $23,000. Those limits reflect an increase of $500.