2024 401k Catch Up Provision. — in 2024, if you’re still working, you can make a maximum annual contribution of $23,500 to your employer’s retirement plan. Most 401 (k) contributions are deductions from employee.
— if you are 50 or older, you can make an additional 401 (k) contribution of $6,500 a year. 15 the plans allow employees to save up to $6,000.