401k 2024 Contribution Limit Irs. The plan must specifically state that contributions or benefits cannot exceed certain. 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.

The 401(k) contribution limits can be broken down into two types: The employee contribution limit and the combined employee and employer contribution limit.