How Much Should I Contribute to My 401(k)?
If you only remember one thing: contribute at least enough to get your full employer match. After that, a common long-term target is around 15% of your pay, including the match. You don't have to hit 15% on day one. Plenty of people get there by bumping their rate up one percentage point every January, which is exactly why this is a good week to think about it.
Step 1: Get the whole match
Employer matching is the closest thing to free money in personal finance. A typical formula is "50% of what you contribute, up to 6% of your salary". On a $60,000 salary:
- You put in 6% = $3,600 a year
- Your employer adds 50% of that = $1,800
That's an instant 50% return on the money you contribute, before any investment growth. Contribute only 3% and you leave $900 a year on the table, every year. Over a career that missing money, plus what it would have grown to, adds up to tens of thousands of dollars.
The 401(k) calculator checks your contribution against your plan's match and tells you if you're missing any.
What different contribution rates grow to
Here's a $60,000 salary over 30 years, with 3% annual raises, a 7% average return and a 50% match up to 6%, starting from zero:
| You contribute | Your total contributions | Employer's | Balance after 30 years |
|---|---|---|---|
| 3% | ~$86,000 | ~$43,000 | ~$362,000 |
| 6% | ~$171,000 | ~$86,000 | ~$724,000 |
| 10% | ~$285,000 | ~$86,000 | ~$1,046,000 |
| 15% | ~$428,000 | ~$86,000 | ~$1,449,000 |
Going from 3% to 6% doubles the final balance, because it doubles both your money and your employer's. After 6%, the match stops growing, but your own contributions keep compounding. These are future dollars, so they won't buy as much as they would today, but the comparison between rows holds.
Why 15% is the common target
Retirement researchers often land on saving roughly 15% of income (including any employer match) from your 20s or early 30s as a level that gives most people a decent chance of replacing a comfortable share of their pay in retirement, alongside Social Security. Start later, and the number goes up. Start earlier, and you have more slack.
It's a rule of thumb, not a law. If you have a pension, big savings elsewhere or plan to keep working part-time, you might need less. The retirement calculator lets you test your own plan, and how much do I need to retire? explains the 4% rule behind it.
When to contribute less than 15% (for now)
Getting the match is almost always worth it. Beyond that, some other things can reasonably come first:
- High-interest debt. Paying off a 24% credit card is a guaranteed 24% return. Very few investments beat that reliably.
- No emergency fund. Without a cash cushion, the next surprise bill could push you into a 401(k) loan or hardship withdrawal, which can be expensive. See how much emergency fund do I need?
- A short-term goal like a house deposit in the next couple of years.
A reasonable order for many people: match first, then a starter emergency fund, then high-interest debt, then work up toward 15%.
Can you contribute too much?
The IRS caps employee contributions at $24,500 for 2026, plus an $8,000 catch-up from age 50 (and a higher $11,250 catch-up at ages 60–63). Most people never get near that. More on the limits in 401(k) contribution limits for 2026.
A more realistic risk is locking up money you'll need before 59½, because early withdrawals usually come with income tax plus a 10% penalty. That's why the emergency fund comes first.
Traditional or Roth?
Many plans now offer both. Traditional contributions cut your tax bill today; Roth contributions are taxed now but come out tax-free in retirement. If you're early in your career and in a low tax bracket, Roth often makes sense. We compare them properly in traditional vs Roth 401(k).
The easy way to get there
Most plans have an "automatic increase" option. Turn it on to raise your contribution by 1% each year, ideally timed with your pay rise so your take-home pay never actually goes down. You barely notice it, and in five or six years you're at a rate that would have felt impossible to start with.
Frequently asked questions
How much should I put in my 401(k)?
At least enough to get your full employer match, then aim to work up to about 15% of your pay including the match, as long as you have an emergency fund and no high-interest debt.
Is 6% a good 401(k) contribution?
It's a good start, especially if it captures the full match on a common '50% up to 6%' formula. Most people will eventually need more than 6% to retire comfortably.
What is the 401(k) limit for 2026?
$24,500 in employee contributions, plus $8,000 catch-up from age 50, or $11,250 at ages 60 to 63.
Should I pay off debt or contribute to my 401(k)?
Get the employer match first. Beyond that, paying off high-interest debt such as credit cards usually beats investing extra.