2025 Contribution Limits Roth 401k. In 2025, the irs has forecasted an increase in the 401(k) elective deferral limit to $24,000, up by $1,000 from the current limit. Key changes for 2025 retirement plan contribution limits.

If you’re 60 to 63, you can contribute an extra $11,250 ; The 401k contribution limits for the year 2025 are expected to see many increases in different plans including elective deferral limit to $24,000, defined contribution.