401 K Plan Contribution Limits 2024 Calculator. The contribution limits for individual retirement accounts (iras).  — thanks to some recent adjustments by the internal revenue service, your 401 (k) will get a bit better in 2024.

 — the contribution limit for simple 401 (k)s is $16,000 (up to $19,500 if you’re 50 or older).  — contribution maximums will increase from $22,500 to $23,000 for 401 (k), 403 (b) and most 457 plans, as well as the federal government’s thrift savings plan, the irs.