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401k 2024 Contribution Limits Over 50. 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. This amount is up modestly from 2023, when the individual 401(k).

But starting in 2025, workers aged 60 to 63 can boost. Those 50 and older can contribute an additional.