Fidelity 2024 Contribution Limits. For 2024, the 401 (k) contribution limit for employees is $23,000, or $30,500 if you are age 50 or older. If you fall into the 50 or older group, you can contribute an extra $7,500 annually into your 401 (k).
401(k) contribution limits for 2024. Total contributions to a solo 401 (k) cannot exceed $69,000 or $76,500 for those at least aged 50.