401k Limits 2024 Catch Up Contribution. 401(k) (other than a simple 401(k)) 403(b)  — individuals can contribute up to $23,000 total into their traditional or roth 401(k) plans in 2024, no matter how high their income is that year.

Those 50 and older can contribute an additional $7,500.  — the 401 (k) contribution limit for 2024 is $23,000 for employee contributions, and $69,000 for the combined employee and employer contributions.