The IRS has confirmed that workers can stash up to $23,500 into a 401(k) next year, a $500 bump from the $23,000 cap that applied in 2024.
Catch-up contributions for savers aged 50 and older stay flat at $7,500, though a newer "super catch-up" of $11,250 kicks in for those aged 60 through 63.
That last detail has flown under the radar.
If you were born between 1965 and 1968, roughly speaking, you may be able to shelter thousands more than your older coworkers, and the window only lasts four years.
Miss it and the higher limit disappears when you turn 64.
Here's a move that won't make headlines but will hit your grocery bill directly.
Bumping your contribution means a smaller paycheck today, which stings when eggs, rent, and car insurance are all still climbing.
But a dollar deferred into a traditional 401(k) isn't taxed now, so the real bite to your take-home pay is often less than people expect.
Say you're in the 22% federal bracket and add $500 to your annual contribution.
That's about $9.60 more per biweekly check, before state tax.
In exchange, that $500 could compound for decades, and many employers match part of it, which is essentially free money sitting on the table.
If you're carrying a balance at 20% or higher, no retirement account on earth reliably beats paying that down first.
The guaranteed return from killing a 20% balance is tough to top, and draining your emergency fund to max out a 401(k) is a good way to end up borrowing again the next time the car breaks down.
You can change your contribution rate at most employers any time during the year, but the payroll deduction has to happen before December 31 to count for 2025.
Unlike an IRA, you can't backfill a 401(k) after the calendar flips.
If you're aiming to max out and haven't started, divide the remaining pay periods by the amount left and set it now.
If you expect taxes to be higher later, paying tax now on Roth contributions can make sense.
If you want the deduction today because cash is tight, traditional wins.
Many plans now let you split contributions between both, which is a reasonable middle path for people who can't decide.
The limit itself won't change anyone's life overnight.
But a $500 raise in what you're allowed to save, plus a catch-up window most people don't know exists, is worth ten minutes of paperwork before open enrollment closes.
Our take: the best contribution is the one you'll actually sustain through a busy year, not the one that looks impressive on paper.
Final Thoughts
Set a number you can live with, grab the full employer match, and revisit it when your budget changes.