Your gross salary is the number on your offer letter. Your take-home pay is what actually lands in your bank account. The gap between them is bigger than most people realize — and it's calculated in a very specific order. Here's the complete step-by-step math.
Gross pay is your total earnings before any deductions. Net pay (take-home pay) is what's left after every deduction is subtracted. The deductions happen in a specific order — and understanding that order is how you calculate your real paycheck.
📌 The Formula: Net Pay = Gross Pay − Pre-Tax Deductions − Federal Income Tax − State Income Tax − Social Security − Medicare − Post-Tax Deductions
We'll use a real example throughout: single filer, $80,000 annual salary, California.
Divide your annual salary by your number of pay periods per year.
Bi-weekly (26 periods): $80,000 ÷ 26 = $3,076.92 per paycheck
Semi-monthly (24 periods): $80,000 ÷ 24 = $3,333.33
Monthly (12 periods): $80,000 ÷ 12 = $6,666.67
Pre-tax deductions come out before income taxes are calculated, reducing your taxable income. Common pre-tax deductions include:
• Traditional 401(k) contributions
• Health insurance premiums (employer-sponsored)
• HSA contributions (Health Savings Account)
• FSA contributions (Flexible Spending Account)
• Dental and vision premiums
Example: If you contribute 5% to your 401(k) = $4,000/year = $153.85/bi-weekly paycheck. Your taxable gross per paycheck = $3,076.92 − $153.85 = $2,923.07
Your employer uses your W-4 and the IRS withholding tables to calculate how much to withhold each paycheck. For a single filer earning $80,000 with a 5% 401(k), taxable income = $76,000/year (after $4,000 contribution).
Using 2026 tax brackets and the $16,100 standard deduction:
Taxable income = $76,000 − $16,100 = $59,900
Federal tax: $1,193 (10%) + $4,386 (12%) + $2,508 (22%) = $8,087/year → $311/bi-weekly
Social Security is a flat 6.2% on gross wages up to the wage base cap of $184,500 in 2026. It applies to your full gross — not reduced by your 401(k) or other pre-tax deductions.
$80,000 × 6.2% = $4,960/year → $190.77/bi-weekly
Medicare is a flat 1.45% on all wages with no cap. Workers earning above $200,000 (single) pay an additional 0.9% Additional Medicare Tax on income above that threshold.
$80,000 × 1.45% = $1,160/year → $44.62/bi-weekly
State tax varies by state. California uses a progressive bracket system. For a single filer with $76,000 taxable income (after 401k), California state tax is approximately:
~$4,900/year → ~$188/bi-weekly
Nine states — Texas, Florida, Nevada, Washington, Alaska, Wyoming, South Dakota, Tennessee, New Hampshire — have zero income tax, meaning no state tax deduction at all.
Post-tax deductions come out after taxes are calculated and don't reduce your tax bill:
• Roth 401(k) contributions
• Life insurance over employer coverage
• Garnishments (child support, student loans, court orders)
• Union dues
In our example, assume no post-tax deductions.
✅ Result: On an $80,000 salary in California with a 5% 401(k) contribution, your real bi-weekly take-home is $2,188 — roughly 71% of your gross per paycheck. Use our free calculator to run your own numbers in seconds.
Here's the same $80,000 salary with the same 5% 401(k) — but in different states:
| State | State Tax Rate | Annual State Tax | Annual Take-Home |
|---|---|---|---|
| Texas / Florida | 0% | $0 | $61,793 |
| Arizona | 2.5% | $1,900 | $59,893 |
| Pennsylvania | 3.07% | $2,333 | $59,460 |
| New York | ~6.25% | $4,750 | $57,043 |
| California | ~6.1% | $4,900 | $56,893 |
| Oregon | ~8.75% | $6,650 | $55,143 |
Moving from California to Texas at the same $80,000 salary is like getting a $4,900/year raise — without negotiating anything.
| Deduction | Rate | Cap / Notes |
|---|---|---|
| Federal Income Tax | 10%–37% | Progressive brackets. Standard deduction: $16,100 (single) |
| Social Security | 6.2% | Wage base cap: $184,500 in 2026 |
| Medicare | 1.45% | No cap. Extra 0.9% on wages over $200,000 |
| State Income Tax | 0%–13.3% | Varies by state. 9 states = $0 |
| 401(k) Traditional | Your choice | Max $23,500/yr (2026). Reduces federal & state tax |
| Health Insurance | Your plan | Typically pre-tax. Reduces taxable income |
Enter your salary, state, filing status, and 401(k) contribution. Get your complete paycheck breakdown instantly — free, no login required.
Calculate My Take-Home Pay →Your paycheck can fluctuate if you have overtime, bonuses, or commission that varies. Tax withholding can also change mid-year when your cumulative income reaches certain thresholds — for example, once you've paid your full Social Security tax for the year (above $184,500), that 6.2% stops being withheld.
Employer-sponsored health insurance premiums are almost always pre-tax deductions under a Section 125 Cafeteria Plan. This means they reduce your taxable income before federal and state income taxes (and sometimes FICA) are calculated, making health insurance effectively cheaper than its nominal cost.
Use our free Take-Home Pay Calculator above. Enter your annual salary, state, filing status, pay frequency, and any 401(k) or health insurance contributions. The calculator uses 2026 IRS brackets and all 50 state tax rates to give you an accurate estimate in seconds.
Yes — at a new job, withholding is often higher for the first paycheck because your employer's payroll system annualizes your income from your first paid day, which can push you into a higher projected bracket. It typically normalizes by your second paycheck once the W-4 processes fully.