401k Limits 2024 After Tax Contribution. In 2025, contribution limits are $23,500, up from $23,000 in 2024. The roth 401(k) contribution limit for 2024 is $23,000 for employee contributions and $69,000 total for both employee and employer contributions.

Of note, the 2024 pretax limit that applies to elective deferrals to irc section 401(k), 403(b) and 457(b) plans increased from $22,500 to $23,000. But unlike with roth contributions,.