How to Calculate Your Take-Home Pay

“Take-home pay,” “net pay,” “salary after taxes,” and “gross-to-net” all describe the same number: what actually lands in your bank account after everything gets subtracted from your gross pay. Getting from one to the other isn’t a single subtraction, it’s a short sequence of steps, each with its own rule for what it applies to.

Start with gross pay

Gross pay is your full pay for the period before anything is taken out. For a salaried employee, it’s your annual salary divided by your number of pay periods. For an hourly employee, it’s your hourly rate times the hours you worked in that period.

Annual Gross Pay = Salary, or Hourly Rate x Hours Per Week x 52
Gross Pay Per Paycheck = Annual Gross Pay / Pay Periods Per Year

Pay periods per year depend on how often you’re paid: weekly is 52, biweekly (every two weeks) is 26, semi-monthly (twice a month, on fixed dates) is 24, and monthly is 12. Biweekly and semi-monthly look similar but aren’t: 26 periods a year versus 24 means a semi-monthly paycheck is slightly larger for the same annual salary.

Subtract pre-tax deductions first

Before any tax is calculated, pre-tax deductions come out of gross pay: a traditional 401(k) or 403(b) contribution, an HSA contribution, and your share of a health insurance premium (when it runs through your employer’s Section 125 cafeteria plan). These lower the wage amount taxes are calculated on, which is the whole point of “pre-tax.”

Here’s the detail that trips people up: a traditional 401(k) contribution reduces the wages federal income tax applies to, but not the wages Social Security and Medicare tax apply to. HSA contributions and cafeteria-plan health insurance premiums reduce both. This isn’t a simplification, it’s how the IRS actually treats these deductions on your W-2.

FICA Wages            = Gross Pay - HSA/Health Insurance Premiums
Federal Taxable Wages  = Gross Pay - 401(k) Contribution - HSA/Health Insurance Premiums

Federal income tax

Federal income tax is calculated on your federal taxable wages using the standard deduction and the progressive tax brackets for your filing status (see “How to Estimate Your Federal Income Tax” for the bracket mechanics in detail). Only the slice of income in each bracket is taxed at that bracket’s rate, not your whole paycheck.

Social Security and Medicare (FICA)

Social Security tax is a flat 6.2% of your FICA wages, capped at the annual Social Security wage base (an amount the Social Security Administration sets every year, so income above that cap isn’t taxed further for Social Security). Medicare tax is 1.45% of your FICA wages with no cap, plus an extra 0.9% Additional Medicare Tax on wages above a threshold that depends on your filing status ($200,000 for single/head of household, $250,000 for married filing jointly, $125,000 for married filing separately). Those Additional Medicare Tax thresholds are fixed by law and don’t rise with inflation the way the wage base does.

Social Security = min(FICA Wages, Wage Base) x 6.2%
Medicare        = FICA Wages x 1.45% + max(0, FICA Wages - Threshold) x 0.9%

Putting it together

Net Pay = Gross Pay - Pre-Tax Deductions - Federal Tax - Social Security - Medicare

Worked example

A single filer earning $75,000 a year, paid biweekly, with no pre-tax deductions:

• Gross pay per paycheck: $75,000 / 26 = $2,884.62
• Federal tax, Social Security, and Medicare together come to about $13,407.50 a year, or $515.67 per paycheck
• Net pay per paycheck: $2,884.62 - $515.67 = $2,368.94

Add a 6% 401(k) contribution and $200 a period toward HSA and health insurance for a married couple earning $95,000, and the pre-tax deductions alone remove $419.23 from each paycheck before federal tax is even calculated, on top of directly reducing net pay. That’s why two people with similar salaries can see very different take-home numbers: pay frequency, filing status, and how much comes out pre-tax all move the final figure independently of each other.

What this estimate does and doesn’t cover

• Federal only. State and local income tax, where they apply, come out on top of everything above and vary widely by location.
• An approximation of employer withholding, not a guarantee. Employers use IRS withholding tables driven by your W-4 elections, which can differ slightly from applying the annual brackets evenly across the year the way this walk-through does.
• Doesn’t include overtime or bonus math directly. Work out your combined gross pay for the period first (the Overtime Calculator and Bonus Calculator handle those separately), then run that total through the steps above.

FAQ

Why doesn’t my 401(k) contribution lower my Social Security tax? Because Social Security and Medicare wages are defined separately from federal taxable wages under IRS rules. A traditional 401(k) deferral is exempt from federal income tax but not from FICA tax; only cafeteria-plan benefits like HSA contributions and certain health insurance premiums are exempt from both.

Is net pay the same as take-home pay? Yes, they’re the same number, just different names for it. “Salary after taxes” and “gross-to-net” also refer to the same calculation.

Will this match my actual paycheck exactly? It should be close, but your employer’s exact withholding depends on your specific W-4 elections and any additional deductions (garnishments, union dues, other benefits) not modeled here.

Use the Paycheck Calculator to run your own numbers.