If your employer offers a 401(k), you already know it's one of the best ways to save for retirement. But the IRS changes the contribution limits almost every year, and 2025 brought a few notable bumps. Let's walk through exactly how much you're allowed to put in -- and how to make the most of it.
Think of this as the "lunch-break version" of everything you need to know about 401(k) limits for 2025.
| Category | 2025 Limit | 2024 Limit |
|---|---|---|
| Employee contribution (under 50) | $23,500 | $23,000 |
| Catch-up contribution (age 50+) | $7,500 | $7,500 |
| Total if 50+ (employee only) | $31,000 | $30,500 |
| Super catch-up (age 60-63) | $11,250 | N/A |
| Total if 60-63 (employee only) | $34,750 | N/A |
| Combined limit (employee + employer) | $70,000 | $69,000 |
The big headline: the standard employee limit went up by $500 to $23,500. Not a huge jump, but it adds up over the years.
Once you turn 50, the IRS lets you contribute an extra $7,500 on top of the standard $23,500 limit. That brings your personal cap to $31,000 for 2025. The catch-up amount stayed the same as 2024 -- no change there.
This is a big deal if you got a late start on saving. An extra $7,500 a year compounding over 15 years can easily turn into six figures by the time you retire.
Here's the brand-new one. Thanks to the SECURE 2.0 Act, if you're between 60 and 63 years old in 2025, you get an even bigger catch-up allowance: $11,250 instead of the usual $7,500. That means your total employee contribution limit is $34,750.
This is a narrow window -- it only applies during those four years. Once you hit 64, you go back to the regular $7,500 catch-up. So if you're in that age range and have the cash flow, it's worth taking full advantage while you can.
This is probably the most misunderstood part of 401(k) rules. When your employer matches your contributions, that money does not count toward your $23,500 personal limit. It's extra, on top of what you put in.
The only ceiling to watch is the combined limit -- that's $70,000 for 2025, which includes everything: your contributions, your employer's match, and any profit-sharing contributions. Most people won't bump up against that number, but it's good to know it exists.
Most employers now offer both options. Here's the short version:
The $23,500 limit applies to both combined -- you can split it between Traditional and Roth however you like, but the total can't exceed $23,500. If you think your tax rate will be higher in retirement, Roth might make more sense. If you want to lower your tax bill right now, go Traditional.
At an absolute minimum, contribute enough to get the full employer match. If your company matches 50% of your contributions up to 6% of your salary, and you only contribute 3%, you're literally walking away from free money.
One thing to be aware of: vesting schedules. Your own contributions are always 100% yours. But your employer's matching contributions might vest over 3 to 6 years. That means if you leave the company before you're fully vested, you could forfeit some or all of the match. Check your plan documents -- it matters more than most people realize.
If you can afford to contribute the full $23,500, do it. The tax savings -- whether you go Traditional or Roth -- compound over decades, and that's where the real magic happens. Even if you can't max out right away, bump up your contribution rate by 1% every year. You'll barely notice it in your paycheck, but your future self will thank you.
Let's say you're 30 years old, earning $80,000 a year, and you contribute 10% of your salary to your 401(k). That's $8,000 per year. Your employer matches 50 cents on the dollar, adding another $4,000. So $12,000 total goes into your account each year.
Assuming a 7% average annual return and you keep this up until age 65:
And that's without ever increasing your contribution. If you bump it up as your salary grows, the numbers get even better. Try it yourself with our 401(k) calculator.
Enter your salary, contribution rate, and employer match to see your projected retirement balance.