401(k) Contribution Calculator
Your contribution plus the employer match you earn.
Percent of salary you contribute each year.
How much the employer adds per dollar you contribute (50% = 50 cents per dollar).
The employer matches only up to this share of your salary (often 6%).
12 monthly, 24 semi-monthly, 26 biweekly, 52 weekly.
Employer match (per year)
- Your contribution
- $4,800.00
- Total going in
- $7,200.00
- Per paycheck (combined)
- $276.92
- Match on your moneyfree
- 50%
The employer match applies only up to the cap. Contributing above the cap raises your own contribution but not the match.
How the 401(k) match calculator works
A 401(k) employer match is one of the clearest forms of extra compensation: money your employer adds to your retirement account on top of your salary, tied to how much you contribute yourself. This tool turns a match formula into real annual figures so you can see exactly what you put in, what your employer adds, and the combined amount landing in the account.
Most match formulas read like “50% of contributions up to 6% of salary”. That sentence hides two separate levers:
- The match rate is how generous each matched dollar is. A 50% rate means the employer adds 50 cents per dollar you contribute; a 100% (dollar-for-dollar) rate means they add a full dollar.
- The cap is the share of your salary that qualifies. A 6% cap means only the first 6% of your pay earns a match, no matter how much more you contribute.
The math is direct. Your contribution is salary x contribution% / 100. The matched share of your salary is the lesser of your contribution percent and the cap, so going above the cap never increases the match. The employer amount is salary x (match rate / 100) x (matched share / 100). The total going in is the two added together, and the per-paycheck figure simply divides that total by your number of pay periods.
Worked example
Take a salary of 80,000, a contribution of 6%, an employer match rate of 50%, and a cap of 6%, paid across 26 biweekly paychecks.
- Your contribution:
80,000 x 6% = 4,800 - Matched share: the lesser of 6% and the 6% cap, so 6%
- Employer match:
80,000 x 50% x 6% = 2,400 - Total going in:
4,800 + 2,400 = 7,200 - Per paycheck:
7,200 / 26 = 276.92
The employer match of 2,400 is a 50% return on the 4,800 you contributed, earned the moment the money is deposited.
Now push your contribution to 10% while the cap stays at 6%. Your own contribution rises to 80,000 x 10% = 8,000, but the employer match is still calculated on the first 6%, so it stays at 2,400. The extra 4% you contributed earns no additional match. This is the key lesson: contribute at least up to the cap to capture the full match, and recognize that anything beyond it is your money alone.
How to use it
- Enter your annual salary before tax.
- Enter your contribution as a percent of salary.
- Enter the employer match rate (50 for a half match, 100 for dollar-for-dollar).
- Enter the match cap, the salary share the employer matches up to.
- Set paychecks per year to match your schedule (12 monthly, 24 semi-monthly, 26 biweekly, 52 weekly).
Limitations
This is an estimate for understanding a match formula, not financial or tax advice. It does not apply annual contribution limits, catch-up contributions, vesting schedules, or any tax treatment, and it assumes a single flat match formula rather than a tiered one. Some plans use stepped matches, true-up provisions, or per-paycheck rather than annual matching, all of which can change the result. Confirm your plan’s exact rules with your administrator before deciding how much to contribute.
Frequently asked questions
What does a 50% match up to 6% actually mean?
It means your employer adds 50 cents for every dollar you contribute, but only on the first 6% of your salary. So if you put in 6% of pay, the employer adds half of that 6%, which is 3% of pay. Two separate numbers are at play: the match rate (how generous each matched dollar is) and the cap (how much of your salary qualifies). The match rate sets the ratio; the cap sets the ceiling.
Why does contributing more than the cap not increase my match?
The employer only matches contributions up to the cap. Once you contribute at or above the cap, the matched amount stops growing because it is calculated on the lesser of your contribution and the cap. Contributing above the cap still increases your own savings and your tax-advantaged total, but the employer portion is frozen at the cap. That is why a 10% contribution with a 6% cap earns the same match as a 6% contribution.
Should I always contribute at least up to the cap?
Contributing up to the cap is the one place you earn an immediate, guaranteed return: the match is money added on top of your own, with no market risk attached to the match itself. Stopping short of the cap leaves part of that match unclaimed. Beyond the cap, the decision is the usual one of comparing the account against other goals, since no further match is on offer.
Is the match part of my salary or extra?
It is extra. The match is employer money paid into your retirement account on top of your salary, not a slice carved out of your pay. Your own contribution does come out of your salary, but the employer match is an additional amount you would not otherwise receive.
Does this calculator account for contribution limits or taxes?
No. It models the match formula itself so you can size your contribution and see the employer portion. It does not apply the annual contribution limit, catch-up rules, vesting schedules, or any tax treatment. Use it to understand the match, then confirm limits and vesting with your plan administrator.