2024 401k Contribution Limits 2025 Employer Match. Starting in 2025, employees can contribute up to $23,500 into their 401 (k) and 403 (b) plans, most 457 plans, and the thrift savings plan for federal employees, the irs. For 2025, the 401 (k) limit for employee salary deferrals is $23,500, which is above the 2024 401 (k) limit of $23,000.

Many employers match a percentage of their workers’ 401(k) contributions as a valuable employee benefit. 401(k) employee contribution limits increase in 2025 to $23,500 from $23,000 in 2024.