For 2022, you can contribute a maximum of $20,500 if you’re under age 50, or a maximum of $27,000 if you are 50 or older as a result of the $6,500 in catch-up contributions. In total, along with employer contributions, a 401(k) plan cannot exceed $61,000 (or $67,500 if 50 or older) or 100% of the employee’s annual salary, whichever option is less.