The short answer: match first, then 15%

Most financial planners give the same two-step answer:

1. Always get the full match. If your employer matches 50% of what you put in up to 6% of pay, contributing 6% earns you an extra 3% of salary for free. Contributing less leaves part of your pay on the table.
2. Aim for 15% in total. Fidelity suggests saving at least 15% of pre-tax income each year for retirement, including employer contributions, starting around age 25. Vanguard suggests a total of 12% to 15%.

So with a 3% match, 12% from you plus 3% from your employer hits the 15% target. If you started saving later than your mid-20s, you may need more than 15% to catch up. If 15% feels impossible right now, that is normal. Start with the match and build up.

What different contribution rates add up to

Here is the same worker at different contribution rates: age 30, $60,000 salary, $15,000 already saved, a 50% match on up to 6% of pay, 3% yearly raises and a 7% yearly return, retiring at 65.

Going from 3% to 6% nearly doubles the final balance, because it also doubles the match. Above 6%, the match stops growing, but every extra percent still adds a lot. In each row, most of the balance comes from investment growth rather than the money that went in.

These balances are in future dollars. At 2.5% yearly inflation, $1,255,255 in 35 years buys about what $528,928 buys today. Using the 4% rule, the 6% balance could support about $50,000 a year of withdrawals, or about $21,000 in today's dollars. Social Security would come on top of that, but it is one reason many people aim higher than 6%.

How employer matching works

A match is money your employer adds based on what you contribute. The formula varies, so check your plan documents. Common versions include:

• 50% up to 6% of pay. Put in 6% and your employer adds 3%. This is the example used in this guide.
• 100% up to 3% of pay. Put in 3% and your employer adds 3%.
• 100% of the first 3%, then 50% of the next 2%. Put in 5% and your employer adds 4%.

On a $60,000 salary, a 3% match is $1,800 a year. Two things to watch: some employers match each paycheck, so front-loading your contributions early in the year can make you miss part of the match. And matching money may vest over several years, meaning you only keep it all if you stay long enough. Vanguard's How America Saves 2026 report found that 38% of plans with automatic enrollment start workers at 3% of pay or less, which can be below the rate needed for the full match. If you were enrolled automatically, check your rate.

What it does to your paycheck

A traditional 401(k) contribution comes out of your pay before federal income tax, so your take-home pay drops by less than the amount you save. Here is someone earning $60,000, paid every two weeks, in the 12% federal tax bracket:

Social Security and Medicare taxes still apply to 401(k) contributions, and state income tax savings vary. With a Roth 401(k), contributions are made after tax, so your take-home pay drops by the full amount, but qualified withdrawals in retirement are tax-free. To see what your pay works out to per paycheck or per hour, try our salary to hourly calculator.

Starting age matters as much as the rate

Here is a worker who starts with $0 at different ages, saving 6% plus a 3% match on a $60,000 salary, with 3% raises and a 7% return, until 65:

1. Starts at 25$1,631,286
2. Starts at 30$1,095,106
3. Starts at 35$722,157
4. Starts at 40$464,306
5. Starts at 45$287,411

Waiting five years, from 25 to 30, costs more than $500,000 at retirement, even though the worker skips only about $19,000 of their own contributions in those five years. The early years have the most time to compound. Our guide on how much $10,000 grows in 10 years shows the same effect with a single deposit. If you are starting later, a higher contribution rate and catch-up contributions after 50 can help close the gap.

2026 401(k) contribution limits

The IRS sets a yearly cap on how much of your own pay you can put into a 401(k):

Employer matching does not count toward these limits. Starting in 2026, if you earned more than $150,000 in Social Security wages from that employer in 2025, any catch-up contributions must go into a Roth account. On a $60,000 salary, the $24,500 limit is about 41% of pay, so most people never reach it. You would need to earn about $163,000 before a 15% contribution hits the limit.

The order to save in

If you have more goals than money, this order works for many people:

1. Contribute enough to get the full match. Few other places pay an instant 50% or 100% return.
2. Pay off high-interest debt. Paying off a credit card at 22% is like earning a guaranteed 22%. Our debt payoff calculator can help you plan it.
3. Build an emergency fund. Three to six months of expenses keeps a surprise bill from forcing an early 401(k) withdrawal, which can mean taxes and a 10% penalty before age 59½.
4. Raise your rate toward 15%. Many plans offer automatic yearly increases. Adding 1 percentage point a year, or saving half of each pay raise, gets you there without a big cut in take-home pay.
5. Consider an IRA or HSA for extra savings. Once you get the match, an IRA can offer more investment choices, and an HSA has its own tax benefits if you have an eligible health plan.

Frequently asked questions

Sources and how we calculated

Balances assume contributions and matching are added monthly, a 7% yearly return converted to an equivalent monthly rate, salary raises of 3% a year and contributions capped at the 2026 IRS limits for each age. Figures are rounded to the nearest dollar and ignore taxes, fees and inflation unless stated. Limits come from the IRS 401(k) contribution limits page. The 15% guideline comes from Fidelity, and plan statistics come from Vanguard's How America Saves 2026.