401(k) Match Calculator

The $900 Raise Maria Keeps Turning Down

Maria is a 34-year-old nurse in Ohio earning $60,000 a year. Her hospital matches 50% of her 401(k) contributions up to 6% of her salary, but she only puts in 3%. That one choice costs her $900 in free employer money every year. Over a 30-year career, that annual $900 shortfall compounds into more than $85,000 she will never see. Maria is not unusual: surveys consistently find that millions of American workers leave part of their employer match unclaimed, effectively taking a pay cut they never notice.

What Is a 401(k) Match?

A 401(k) match is money your employer adds to your retirement account, but only if you contribute first. Think of it as part of your compensation that you collect by saving. Plans describe the deal with a formula like "50% up to 6%" or "100% up to 3%": the first number is the match rate, the second is the cap, expressed as a percentage of your salary.

How Does 401k Employer Matching Work?

The 401k match formula explained in four steps:

1. Your contribution = annual salary x your contribution rate
2. Match-eligible pay = annual salary x match cap
3. Employer match = the smaller of the two above x match rate
4. Total deposited = your contribution + employer match

The key detail: the match only applies to contributions inside the cap. Money you put in above the cap still grows for retirement, but it earns no extra match.

Worked Example: $60,000 Salary, 6% Contribution, "50% Up to 6%" Match

This is the classic employer match "50% up to 6%" calculation. A 50% match is an instant 50% return on your money before any investment growth, which is why planners call it the best guaranteed return in personal finance.

Common Match Formulas Compared

Two plans can look similar and pay very differently. Here is how the most common formulas compare on a $60,000 salary when you contribute 6% ($3,600):

Notice that "100% up to 3%" and "50% up to 6%" pay the same $1,800 here, but the second formula rewards you for saving beyond 3%. Under the 50% plan, dropping your contribution to 3% would cut your match in half, to $900.

Why Is Maximizing My Employer Match Important?

Because every unmatched dollar is compensation you never collect, and the true cost is far bigger than one year's miss. If Maria raises her contribution from 3% to 6%, she captures an extra $900 of employer money this year:

Now add compound growth. An extra $900 invested each year for 30 years at a 7% average annual return grows to roughly $85,000 (900 x ((1.07^30 - 1) / 0.07)). The S&P 500 has averaged close to 10% a year over long periods, so 7% is a cautious estimate. See what the same math does with your own numbers in our compound interest calculator, then get a full retirement savings projection, employer contribution included, with our retirement calculator.

Worried about the smaller paycheck? Raising your contribution from 3% to 6% costs less take-home pay than you think, because pre-tax contributions shrink your taxable income. Run your exact numbers through our paycheck calculator to see the real impact.

How Does Vesting Affect My Match?

Your own contributions are always 100% yours. Employer match dollars are different: many plans hand them over on a vesting schedule, and if you leave early you forfeit the unvested part.

Check your plan's vesting schedule, usually in documents from providers like Fidelity, before changing jobs. A move timed a few months early can cost you thousands in unvested match.

2026 IRS 401(k) Contribution Limits

Limits per IRS Notice 2025-67. The $24,500 employee limit covers your pre-tax and Roth 401(k) contributions combined. Employer match dollars sit outside it, under the $72,000 total.

Find Out How Much Your Employer Will Match

Enter your salary, your contribution rate, and your plan's match formula into the 401(k) company match calculator above, our 401k contribution calculator with employer match. You will see your projected employer contribution for the year, exactly how much free money you are leaving behind, and what the match is worth over time. It takes less than a minute, and the number might change how much you contribute.

Frequently Asked Questions

What is a 401(k) match?

A 401(k) match is an employer contribution to your retirement plan that you earn by contributing yourself. A typical formula is "50% up to 6%": your employer adds 50 cents for every dollar you save, on contributions up to 6% of your salary.

How does 401k employer matching work?

Each pay period, your employer applies its match formula to your contribution. With "50% up to 6%" on a $60,000 salary, contributing 6% ($3,600) earns the maximum $1,800 match. Contributions above 6% get no additional match.

Why is maximizing my employer match important?

A 50% match is an instant 50% return, the highest guaranteed return most people will ever see. Missing $900 of match a year for 30 years at 7% growth costs about $85,000 in lost retirement wealth.

How does vesting affect my match?

Vesting decides how much of your employer's match you own if you leave. Your own contributions are always fully yours, but match dollars may vest gradually (graded) or all at once after a few years (cliff). Leave early and you forfeit the unvested portion.

Last updated: 2026 | 401(k) limits per IRS Notice 2025-67. This calculator is for estimation only and is not financial advice, confirm your plan's match formula and vesting schedule with your employer.