401k 2024 Maximum Contribution Amount. — the contribution limit for 401 (k)s, 403 (b)s, most 457 plans and the federal government's thrift savings plan is $23,000 for 2024, up from $22,500 in 2023. Those 50 and over can contribute an additional $3,500 for a maximum contribution of.
— 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. Those 50 and older will be able to.