Irs 401k Catch Up Contribution Limits 2024. The basic limit on elective deferrals is $23,000 in 2024, $22,500 in 2023, $20,500 in 2022, $19,500 in 2020 and 2021,.  — for those with a 401 (k), 403 (b), or 457 plan through an employer, your new maximum contribution limit will go up to $23,000 in 2024.

Use our calculator to estimate your future balance. The 401 (k) compensation limit is $345,000.