Paycheck Calculator
Calculate your net take-home pay after federal tax, FICA, state tax, and pre-tax deductions.
Estimates based on 2024 US tax brackets and rates. Actual results may vary. Consult a tax professional for accurate calculations.
About this tool
A paycheck calculator helps you understand exactly how much money you'll actually take home after taxes and deductions. Whether you're negotiating a salary, planning your monthly budget, or wondering why your paycheck seems smaller than expected, this tool breaks down the math behind federal income tax, FICA contributions (Social Security and Medicare), state taxes, and pre-tax deductions like 401(k) or health insurance premiums. Getting an accurate picture of your net pay is essential for real financial planning.
To use the calculator, enter your gross annual income (or hourly rate with hours per week), select your filing status, and input any pre-tax deductions you have. The tool automatically applies 2024 federal tax brackets and standard deductions, then factors in FICA rates (6.2% Social Security, 1.45% Medicare) and your state's tax rate if applicable. You can also model different scenarios—what if you contribute more to your 401(k)? What if you pick up overtime?—to see how changes affect your take-home pay.
This calculator is most useful for employees comparing job offers, budgeting monthly expenses, or understanding payroll deductions. Keep in mind it provides an estimate based on standard rates; your actual paycheck may vary slightly depending on your employer's specific payroll system, additional local taxes, or recent tax law changes. For complex tax situations—self-employment income, investment gains, or multiple jobs—consult a tax professional for a more detailed picture.
Frequently Asked Questions
Code Implementation
def calculate_paycheck(
gross_annual: float,
filing_status: str = "single",
state_tax_rate: float = 0.05,
k401_pct: float = 0.06,
health_ins: float = 200,
hsa: float = 50,
pay_periods: int = 26
) -> dict:
gross = gross_annual / pay_periods
pretax_deductions = gross * k401_pct + health_ins + hsa
# 2024 federal tax brackets (single)
brackets_single = [
(11600, 0.10), (44725, 0.12), (95375, 0.22),
(201050, 0.24), (383900, 0.32), (487450, 0.35), (float('inf'), 0.37)
]
brackets_married = [
(23200, 0.10), (89450, 0.12), (190750, 0.22),
(364200, 0.24), (462500, 0.32), (693750, 0.35), (float('inf'), 0.37)
]
brackets = brackets_married if filing_status == "married" else brackets_single
taxable_annual = gross_annual - (pretax_deductions * pay_periods)
fed_tax_annual = 0
prev = 0
for limit, rate in brackets:
if taxable_annual <= prev:
break
fed_tax_annual += min(taxable_annual, limit) * rate - prev * rate
prev = limit
federal_tax = fed_tax_annual / pay_periods
ss_tax = min(gross, 168600 / pay_periods) * 0.062
medicare_tax = gross * 0.0145
state_tax = gross * state_tax_rate
total_deductions = pretax_deductions + federal_tax + ss_tax + medicare_tax + state_tax
net = gross - total_deductions
return {
"gross": round(gross, 2),
"federal_tax": round(federal_tax, 2),
"social_security": round(ss_tax, 2),
"medicare": round(medicare_tax, 2),
"state_tax": round(state_tax, 2),
"pretax_deductions": round(pretax_deductions, 2),
"net": round(net, 2)
}
result = calculate_paycheck(75000, "single", 0.05, 0.06, 200, 50, 26)
print(f"Gross: ${result['gross']:,.2f}")
print(f"Net Pay: ${result['net']:,.2f}")Comments & Feedback
Comments are powered by Giscus. Sign in with GitHub to leave a comment.