Finance Calc App

401(k) calculator with employer match

See how your 401(k) could grow with employer matching. Contribute enough to get the full match — it's free money — and project your balance at retirement.

By Mitch Duncan Last reviewed Methodology

Your 401(k) details

Employers commonly match your contributions dollar-for-dollar up to 3–6% of pay. Always contribute at least enough to get the full match — it's free money. The 2025 employee deferral limit is $23,500 ($31,000 if 50+).

Projected balance at retirement (in 30 years)
$617,936.40
Your contribution / year
$3,600.00
Employer match / year (free money)
$2,400.00
How the projection breaks down
Combined contributions / year
$6,000.00
Total paid in over 30 years
$205,000.00
Investment growth
$412,936.40

Assumes a constant salary, contribution rate, and 6.0% average annual return. Real returns vary; figures are before inflation and fees.

Want the full picture? How to Plan for Retirement →

How a 401(k) with employer match works

A 401(k) is an employer-sponsored retirement account. You contribute pre-tax dollars (or after-tax for a Roth 401(k)), the money grows tax-deferred, and most employers add a matching contribution on top — the single biggest reason to use one.

Always capture the full match

A typical match is "100% of the first 3% of pay, then 50% of the next 2%", or "100% up to 4%". Whatever the formula, contributing less than the threshold means giving up part of your compensation. On a $60,000 salary, a 4% match is $2,400 a year of free money — an instant, guaranteed 100% return before the market does anything.

2025 contribution limits

The employee deferral limit is $23,500 for 2025 ($31,000 if you're 50 or older, including catch-up). Employer contributions don't count toward that limit but are subject to a higher combined cap. Above the limit you lose the tax advantage, so know your number.

Vesting and leaving a job

Your own contributions are always yours, but employer-matched money may be subject to a vesting schedule — you may forfeit unvested match if you leave early. When you change jobs, roll the balance into an IRA or your new 401(k) rather than cashing out, which triggers income tax plus a 10% early-withdrawal penalty before age 59½.

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Frequently asked questions

What is an employer match and why does it matter?
An employer match is money your employer adds to your pension or retirement account based on what you contribute — often 50% to 100% of your contributions up to a set percentage of your salary. It's effectively part of your pay, and an instant, guaranteed return that no investment can reliably beat. Contributing at least enough to capture the full match is the single most valuable thing most people can do for their retirement.
How much of my salary should I put into my pension?
A common guideline is 10–15% of gross pay including any employer contribution, but the right number depends on your age, when you started, and your target retirement income. The minimum first step is to contribute enough to get the full employer match. After that, increasing your rate by even 1–2% a year — for example when you get a pay rise — makes a large difference over a career thanks to compounding.
Why does starting early matter so much?
Because returns compound, money invested early does far more work than the same amount invested later. A contribution made 30 years before retirement can grow several times over, while the same contribution made 10 years out grows much less. This is why financial planners stress getting started — even with small amounts — rather than waiting until you can afford to contribute more.
How is the projected balance calculated?
The calculator compounds your current balance plus your combined annual contributions (yours plus your employer's) at your assumed annual return until retirement. The formula is: final balance = current balance × (1+r)^n + annual contribution × ((1+r)^n − 1) / r, where r is the annual return and n is the number of years.
What return rate should I assume?
Long-run real (after-inflation) returns have historically been around 5–7% for stock-heavy portfolios, lower for more conservative mixes. Past performance isn't a guarantee. Many people project with 5–7% nominal and also run a more pessimistic case to stress-test the plan. Remember the projection is before fees and inflation, so the real purchasing power of the final figure will be lower.
What happens to my pension if I change jobs?
Your own contributions are always yours. Employer contributions may be subject to a vesting period, so check whether you'd forfeit any unvested amount by leaving early. When you move jobs, it's usually best to transfer or consolidate the balance rather than cash it out — cashing out early often triggers tax and penalties and loses years of compound growth.

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