2025 Irs 401k Limits. Starting in 2025, employees can contribute up to $23,500 into their 401(k) and 403(b) plans, most 457 plans, and the thrift savings plan for federal employees, the irs announced nov. Of note, the 2025 pretax limit that applies to elective deferrals to irc section 401(k), 403(b) and 457(b) plans increased from $23,000 to $23,500.
In 2025, individuals can contribute up to $4,300 (up from $4,150), while families can contribute $8,550. Here’s why you should update your account now, financial experts say.