Why an $80,000 hire doesn’t cost $80,000
The salary on the offer letter is only the largest line item, not the total. The moment wages are paid, the employer owes its own share of payroll taxes on top of them: 7.65% FICA — 6.2% Social Security plus 1.45% Medicare, mirroring what the employee has withheld — plus federal and state unemployment tax. Then come the costs that make the offer competitive: the employer’s share of health premiums, the retirement match, life and disability coverage. Finally the role needs a desk, a laptop, and software seats. Stack it all and you get thefully-loaded cost — and dividing that total by salary is where the well-known 1.25–1.4× rule of thumb comes from. It is not a convention someone decreed; it is what taxes at roughly 8–10% of salary plus a typical benefits-and-overhead package arithmetically works out to. The calculator derives your actual multiplier instead of assuming one.
The fully-loaded cost formula
Total cost = Salary + FICA + FUTA/SUTA + Benefits + Overhead
Multiplier = Total cost ÷ Salary
True hourly cost = Total cost ÷ hours worked (or billed)
where FICA is the employer’s 7.65% share,FUTA/SUTA are federal and state unemployment taxes, andBenefits covers health premiums, the retirement match, and other insurance or perks. This model applies the tax rates as flat percentages of the full salary — a close approximation at typical salaries, though in reality the Social Security portion stops at the annual wage base and FUTA applies only to the first $7,000 of wages.
Worked example
Take the calculator's default hire: an $80,000 salary with typical taxes, benefits, and overhead. Here is how the salary becomes the fully-loaded cost:
| Step | Amount |
|---|---|
| Base salarywhat the offer letter says — the number most budgets stop at | $80,000 |
| + Employer FICA (7.65%)6.2% Social Security + 1.45% Medicare, paid by the employer on top of wages | $6,120 |
| + FUTA + SUTA (3%)federal + state unemployment tax, an editable estimate — SUTA varies by state | $2,400 |
| + Benefits$12,000 health premiums + $3,200 retirement match (4%) + $2,000 other benefits | $17,200 |
| + Overheadworkspace, equipment, software licenses, training | $6,000 |
| = Total annual cost÷ 2,080 working hours = $53.71 per hour | $111,720 |
| = Fully-loaded multiplier of 1.40×$111,720 ÷ $80,000 — the origin of the 1.25–1.4× rule of thumb | 1.40× |
Computed with this calculator's default settings — open the tool above and you'll see the same numbers, then swap in your own salary, benefits, and overhead.
Cost per hour vs. cost per billable hour
Dividing the total cost by 2,080 working hours gives the fully-loaded hourly cost — the honest answer to “what does an hour of this person’s time cost us?” and the floor under any internal rate card. For agencies, consultancies, and law firms there is a second, harsher division: total cost ÷ billable hours. Nobody bills 2,080 hours; after meetings, admin, sales support, and bench time, 1,400–1,600 billable hours is a healthy year. Spread the same cost over fewer hours and the break-even rate per billable hour jumps 30–50% above the working-hour figure — which is why billing rates that look generous next to salaries are often merely solvent. Enter your realization estimate in the billable-hours field and the calculator shows the rate each billed hour must recover before the role contributes a dollar of profit.
This page shows the employer’s side of the ledger. For the employee’s side of the same paycheck, see thetake-home pay calculator; for the payroll-tax math in isolation — both halves, wage base and all — use theFICA tax calculator; and to convert salaries between hourly, monthly, and annual figures, try thesalary calculator.
Frequently asked questions
How much does an employee really cost per year?
Typically 1.25 to 1.4 times base salary, and the multiplier is arithmetic rather than folklore. Employer-side payroll taxes add roughly 8–10% of salary (7.65% FICA plus unemployment taxes), an employer health-premium contribution commonly runs several thousand to over ten thousand dollars a year, a retirement match adds a few percent more, and workspace, equipment, and software add overhead on top. Stack those on an $80,000 salary and the total lands near $110,000. Lean setups with few benefits sit near 1.25×; rich benefits packages push past 1.4×.
What is included in the fully-loaded cost of an employee?
This calculator stacks four layers on top of base salary. First, mandatory employer taxes: the employer share of FICA and federal plus state unemployment tax. Second, benefits: the employer share of health insurance premiums, the retirement match, and other benefits like life and disability insurance or stipends. Third, overhead attributable to the role: workspace, equipment, and software. What it deliberately excludes: recruiting and onboarding costs, bonuses and equity, paid leave (already inside salary), and manager time — add those to the benefits or overhead fields if you want them counted.
What is the difference between employer and employee FICA?
FICA is paid twice on the same wages. The employee’s 7.65% — 6.2% Social Security plus 1.45% Medicare — is withheld from each paycheck, and the employer pays a matching 7.65% out of its own pocket on top of the wage. This calculator counts only the employer share, because the employee share is already inside the salary figure. One asymmetry: employees owe an extra 0.45% Medicare surtax on wages above $200,000, but there is no employer match on that surtax. See IRS Topic 751 for the current rates and the Social Security wage base.
Can I use this to compare an employee against a contractor?
Yes — with caveats. The fair comparison is the employee’s fully-loaded hourly cost (or billable-hour cost) against the contractor’s rate, not salary against rate: a contractor’s invoice already covers both halves of FICA, their own insurance, equipment, and non-billable time, which is why their hourly rate looks high next to a salary divided by 2,080. But the numbers are not the whole decision. Worker classification is a legal test, not a preference — misclassifying an employee as a contractor carries back-tax and penalty risk — and contractors trade lower commitment for less control and continuity.
How can a business lower its loaded employee cost?
Work the levers in order of size. Benefits are usually the largest controllable block: shopping health plans, adjusting the employer premium share, or capping the retirement match moves thousands per head. Unemployment tax is experience-rated in most states, so fewer layoffs and clean claims handling lower the SUTA rate over time. Overhead responds to remote or hybrid arrangements and to auditing software seats. What rarely works is cutting salary itself: below-market pay raises turnover, and replacing an employee costs a large fraction of a year’s salary in recruiting and lost productivity — often more than the savings.
Sources
The official figures this page quotes are drawn from the primary sources above — check them (or a qualified professional) before relying on a result.
Disclaimer: This calculator is foreducation and illustration only. It applies tax rates as flat percentages of the full salary, while actual employer taxes depend on wage bases, state SUTA rates and experience ratings, and each employer’s benefits contracts. Results are a planning estimate, not a payroll computation, and nothing here is tax, legal, or financial advice.