401k 2024 Limits Increase Calculator. According to the report, mercer envisions the irs increasing contribution limits by $500 in 2024 for not only 401 (k)s, but also 403 (b) and eligible 457 plans. For 2024, the 401 (k) limit for employee salary deferrals is $23,000, which is above the 2023 401 (k) limit of $22,500.
Here’s how the 401(k) plan limits will change in 2024: 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.