401(k) Calculator: How Much Free Money Are You Leaving on the Table?
See exactly what your employer 401(k) match is worth — in dollars per year and projected over decades. Spoiler: it’s probably more than you think.
If your employer offers a 401(k) match and you’re not contributing enough to get the full amount, you are saying “no thanks” to free money. Not a bonus. Not a raise. Free money that requires zero extra work from you. This calculator shows you exactly how much.
Who this is for: Anyone with access to a 401(k) at work — especially first-time workers who are unsure what a “match” even means or how much to contribute.
401(k) Match Calculator
Enter your salary, your contribution percentage, and your employer’s match formula. If you know roughly how many years until retirement, add that too for a long-term projection.
Your 401(k) & Employer Match
Find out how much free money your employer will add.
What Is a 401(k) Match?
A 401(k) is a retirement savings account offered by many employers. You contribute a percentage of each paycheck, and your employer may match some of that contribution. The match is free money — extra compensation beyond your salary that costs you nothing extra.
Common match formulas include:
- 50% of the first 6% — if you contribute 6%, they add 3%. This is the most common setup.
- 100% of the first 3–6% — they match every dollar you contribute, up to a limit.
If you only contribute 3% under a "50% of first 6%" plan, you only get 1.5% from your employer. Bump your contribution to 6% and you get the full 3%. That difference — 1.5% of your salary every year — can equal tens or even hundreds of thousands of dollars over a career.
Not sure what the 2026 401(k) limits mean for your salary? Read: 2026 401(k) Limits ExplainedWhy the Match Matters So Much
Let's say you make $50,000 and your employer offers 50% match up to 6%. You contribute 6% ($3,000/year). Your employer adds $1,500/year. Over 30 years at a 7% average return:
- Your contributions grow to roughly $303,000
- Your employer's match grows to roughly $151,000
- Total: ~$454,000 — and $151,000 of that was free
That's the power of the match. Even if retirement feels impossibly far away, the match is money you should take today.
How Much Should I Contribute?
The minimum: enough to get the full match. There is no better guaranteed return on investment. If your employer matches 50% of 6%, contributing 6% gives you an instant 50% return on that portion.
Beyond the match, a common rule of thumb is to work toward 10–15% of your salary total (including the match). But at minimum, get the full match first. You can always increase later.
Real Example
Taylor, 24, $50,000 salary: Employer offers 50% match up to 6%. Taylor contributes 6% ($3,000/year). Employer matches with $1,500/year. If Taylor stays at this rate for 30 years at 7% return:
- Your money: ~$303,000
- Employer's free money: ~$151,000
- Total nest egg: ~$454,000
FAQ
What if I can't afford to contribute?
Even 2–3% is better than 0%. Start small and increase by 1% each year or when you get a raise. Most people don't notice a 1% decrease in their paycheck, but the compounding effect over decades is enormous. Getting even a partial match is better than getting no match at all.
When do I actually get the match money?
It depends on your employer's vesting schedule. Some employers give you the match immediately (100% vested). Others require you to stay 3–5 years before the matched money is fully yours. Your own contributions are always 100% yours immediately. Check your plan documents or ask HR.
What happens if I leave the company?
Your own contributions can be rolled over to an IRA or your new employer's 401(k). Vested employer match money can also be rolled over. Unvested match money stays with the employer. This is why understanding your vesting schedule matters — especially if you're considering a job change.
Does the match reduce my paycheck a lot?
Not as much as you might think. 401(k) contributions are pre-tax, meaning they reduce your taxable income. A $100 contribution might only reduce your take-home pay by $75–$85 after the tax savings. Plus, the employer match more than makes up for it.
For educational purposes only. This calculator shows employer match estimates and compound growth projections. The 2026 employee contribution limit is $24,500 (under age 50); those 50+ may contribute an additional catch-up amount. Actual investment returns vary significantly. 401(k) rules, contribution limits, and tax treatment change over time. This is not investment advice. Consult a financial advisor for personalized guidance.