401k Contribution Limit 2024 Catch Up Limit. 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. For 2024, the maximum you can contribute to a simple 401 (k) is $16,000.

Workers who contribute to a 401 (k), 403 (b), most 457 plans and the federal government’s thrift savings plan can contribute up to $23,000. Those 50 and older can contribute an additional $7,500.