401k Max 2024 And 2024 Difference. Employees could contribute up to $22,500 to their 401(k) retirement savings plans for tax year 2023. 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.

Each year, the 401(k) contribution limits increase by a small amount. Those 50 and older can contribute.