A 401k match is money your employer adds to your account when you save. It is one of the simplest ways to boost your retirement savings, and one of the easiest to miss.
What a match is
When you put money into your 401k, many employers add some money too. The rules are set by your plan. A match is not required by law, so some employers do not offer one.
Common match formulas
Match formulas are written as a percentage of what you save, up to a limit based on your pay.
| Formula | What it means |
|---|---|
| 50% of the first 6% you save | If you save 6% of your pay, your employer adds 3% of your pay |
| 100% of the first 4% you save | If you save 4%, your employer adds 4% |
| 100% of the first 3%, then 50% of the next 2% | If you save 5%, your employer adds 4%. This is a common "safe harbor" formula |
Example. You earn $60,000. Your employer matches 50% of the first 6%.
- You save 6%: $3,600 a year.
- Your employer adds 50% of that: $1,800 a year.
- If you save only 3% ($1,800), your employer adds $900. You miss $900 of free money every year.
Why getting the full match matters
A match is an immediate return on the money you put in. Over a career, the missed match, plus the growth it would have earned, can add up to a large sum. That is why most planners say to save at least enough to get the full match before putting money anywhere else.
Our employer match calculator shows what you are getting now, what you could get, and what the difference could grow to by retirement.
What vesting means
Your own contributions are always 100% yours. The employer's match can come with a vesting schedule, which sets how long you must work before the match is fully yours.
- Immediate vesting: the match is yours from day one. Safe harbor matches usually work this way.
- Cliff vesting: you own none of the match until a set date, then all of it. Under the usual rules this cannot be longer than 3 years.
- Graded vesting: you own more each year, for example 20% a year, until you are fully vested. Under the usual rules this cannot take longer than 6 years.
If you leave before you are fully vested, you give up the part of the match you have not yet earned. That is worth knowing if you are thinking about changing jobs.
How to make sure you get the match
- Find your plan details. Ask HR or check your plan's summary for the match formula and vesting schedule.
- Check your savings rate. Make sure it is at least the amount that earns the full match.
- Watch the timing. Some plans match each paycheck, others once a year. If you hit your yearly limit early in the year, you could miss match on later paychecks in plans that match per paycheck.
- Raise your rate over time. If you cannot reach the full match now, add 1% each time you get a raise.
A note on limits
The match does not count toward your own yearly contribution limit, but it does count toward the overall cap on money going into your account. See our 2026 limits.
401k employer match See how much match you get, how much you are missing and what vesting means for you.Sources
- IRS: Retirement topics, vesting
- IRS: Issue snapshot, vesting schedules for matching contributions
- IRS: 401(k) plan qualification requirements (safe harbor)
- IRS Notice 2025-67 (2026 amounts)
This article is for education and is not financial, tax or legal advice. Figures are checked against the sources above and may change. Read the full disclaimer.