Solo 401 K Contribution Limits 2024 Fidelity. Every year the irs sets the max that you and your employer can contribute to your 401(k). Those 50 and older can contribute an additional $7,500.

Use our calculator to estimate your future balance.  — the 2024 contribution limit for 401(k) plans is $23,000, up from $22,500 in 2023.