401k Contributions Limits 2025. The 401(k) contribution limit for 2025 is $23,000, or $30,500 if you’re at least 50. Learn how much you can contribute to your 401 (k) plan in 2025, and use a calculator to estimate your future balance.

Find out the current limits, the calculation. For 2025, the irs limits the amount of compensation eligible for 401(k) contributions to $345,000.