2025 Irs 401 K Contribution Limits. 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. For tax year 2025, employees can defer $23,500 into their 401 (k) and iras, a modest increase from the $23,000 contribution limit in 2024.
Maximum contribution limits for 401(k) plans are rising by $500 for many workers in 2025. The change applies to 401 (k)s, 403 (b)s and the.