Maximum 401k Matching 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. That's an increase from the 2023 limit of $330,000.

This amount is an increase of $500 from the 2023 401 (k). For 2024, the irs limits the amount of compensation eligible for 401 (k) contributions to $345,000.