Irs 401k Limits 2025 Over 50. 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. Those 50 and older can contribute additional money.

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. The irs raised 2025 401(k) contribution limits to $23,500, up $500 from last year.