Retirement balance with employer match.
FV = B(1+r)^n + C × [((1+r)^n - 1) / r] + M × [((1+r)^n - 1) / r]
Your projected 401(k) balance combines three growing components: (1) your existing balance compounded forward, (2) a future value of an annuity for your annual employee contributions, and (3) the same annuity calculation for your employer match contributions. All three components grow at the same assumed annual rate of return over the same number of years.
Note: Results are estimates only. They assume contributions are made at the end of each year, a fixed annual rate of return, and no withdrawals or loans. Actual 401(k) balances will differ based on market performance, fees, vesting schedules, and plan-specific rules.
Step 1 — Compound existing balance: $15,000 × (1.07)^25 = $15,000 × 5.42743 = $81,411.45 Step 2 — Future value of employee contributions: $3,600 × [((1.07)^25 - 1) / 0.07] = $3,600 × [(5.42743 - 1) / 0.07] = $3,600 × [4.42743 / 0.07] = $3,600 × 63.2490 = $227,696.40 Step 3 — Future value of employer match: $2,400 × 63.2490 = $151,797.60 Step 4 — Total FV = $81,411.45 + $227,696.40 + $151,797.60 = $460,905.45
Result: Projected 401(k) balance at retirement: **$460,905**
In this example, a 35-year-old with a $15,000 existing balance who earns $60,000 per year, contributes 6% annually, receives a 4% employer match, and earns an average 7% annual return, could accumulate approximately $460,905 by retirement at age 60. Of that total, roughly $81,400 came from compounding the existing balance, $227,700 from employee contributions growing over time, and $151,800 from employer match contributions — illustrating how the employer match adds significant value at no extra cost to you.
A 401(k) is an employer-sponsored, tax-advantaged retirement savings plan named after the section of the U.S. Internal Revenue Code that created it. Employees contribute pre-tax dollars (traditional 401(k)) or after-tax dollars (Roth 401(k)), and the money grows inside the account until withdrawal.
Many employers match a percentage of your contributions up to a salary cap — for example, "100% match on the first 4% of salary." This is essentially free money added to your retirement account. Failing to contribute at least enough to capture the full employer match means leaving compensation on the table.
The IRS sets annual limits on 401(k) contributions. For 2024, employees can contribute up to $23,000 per year ($30,500 if age 50 or older, thanks to catch-up contributions). Employer contributions do not count toward the employee limit but are subject to a combined limit.
The biggest driver of long-term 401(k) growth is compound interest — earning returns on both your principal and your accumulated gains. Starting early dramatically increases your final balance because small differences in years invested create exponential differences in outcomes.
Employer match contributions may be subject to a vesting schedule, meaning you only "own" the matched funds after working at the company for a minimum number of years. Check your plan documents to understand your vesting timeline.
Disclaimer: This calculator provides estimates for educational and planning purposes only. Results are not guaranteed and will differ based on actual market returns, fees, plan rules, and tax law changes. Consult a qualified financial advisor before making retirement planning decisions.
Using our calculator with a $0 starting balance, $23,000 annual contributions (2024 limit), a 4% employer match on a $80,000 salary ($3,200/yr match), and a 7% annual return, it takes approximately 23–24 years to cross $1,000,000. Starting earlier or receiving a larger match shortens this timeline significantly.
You have several options: leave the money in your former employer's plan (if allowed), roll it over to your new employer's 401(k) plan, roll it over to an Individual Retirement Account (IRA), or cash it out (generally not recommended due to taxes and a 10% early withdrawal penalty if under 59½).
Compound interest means your investment returns are reinvested and themselves earn returns in subsequent years. For example, $10,000 earning 7% grows to $10,700 after year 1, then $11,449 after year 2 — you earned $49 more in year 2 than year 1 without adding any money. Over 30 years, this compounding effect causes exponential — not linear — growth.
It depends on your current vs. expected future tax rate. If you expect to be in a higher tax bracket in retirement than today, a Roth 401(k) is generally better (pay taxes now at a lower rate, withdraw tax-free later). If you expect a lower tax rate in retirement, a traditional 401(k) is usually advantageous (defer taxes now, pay at a lower rate later). Many advisors suggest diversifying across both.
An employer match is an additional contribution your employer makes to your 401(k) based on how much you contribute. A common formula is "100% match on up to 4% of your salary," meaning if you earn $60,000 and contribute at least $2,400 (4%), your employer also adds $2,400. It is essentially part of your compensation.
At a minimum, contribute enough to capture your full employer match — this is the highest guaranteed return available on any investment. Beyond that, many financial planners recommend saving 10–15% of your pre-tax income for retirement (including the employer match). If you can afford more, the IRS allows up to $23,000 in employee contributions for 2024.
A commonly used assumption is 6–8% per year for a diversified portfolio of stocks and bonds over a long time horizon. The historical average annual return of the S&P 500 is roughly 10% before inflation, but many planners use a more conservative figure to account for fees, diversification, and sequence-of-returns risk.
This calculator projects the gross future value of your 401(k) balance, not the after-tax amount. For a traditional 401(k), you will owe ordinary income tax on withdrawals in retirement. For a Roth 401(k), qualified withdrawals are tax-free. Consult a tax professional to understand your specific tax situation.
For 2024, the IRS employee contribution limit is $23,000. If you are age 50 or older, you can make an additional catch-up contribution of $7,500, for a total of $30,500. The combined employee + employer contribution limit for 2024 is $69,000 (or $76,500 including catch-up).
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