Paycheck calculator
An hourly worker may be looking at a timecard showing 46 hours, while a salaried worker may have an offer letter showing $72,000 but a first check covering only nine working days.
A tipped, contract, commission, or variable-pay worker may be reviewing a bonus statement or payroll-register entry that does not match the expected deposit. This paycheck calculator estimates how the amount on that document becomes net pay - the amount received after the listed taxes and employee deductions - for one pay period.
Use the estimate to decide whether to correct an input, review Form W-4, or ask the employer about a payroll line. Unlike annual income calculators, paycheck calculators focus on a single payment.
Enter your pay details
Tax year
- Select the year shown on the paycheck.
State
- Select the employee’s work and residence state.
- Add any local jurisdiction requested by the calculator.
Pay type
- Hourly
- Salary
- Bonus or supplemental earnings
Pay frequency
- Annual
- Monthly
- Semimonthly
- Biweekly
- Weekly
- Hourly
Gross pay
- Enter gross pay - the earnings amount before taxes and employee deductions - for this pay period.
- If entering an annual salary, confirm the number of pay periods.
Hours and additional earnings
- Regular hours
- Overtime hours and rate
- Tips, commission, or other taxable income
- Bonus
Federal tax details
- Filing status from Form W-4
- Dependents and other credits
- Other income
- Additional withholding
- Exempt status, when valid
Employee deductions
- Pretax retirement contribution
- Pretax health, dental, or vision deduction
- FSA or another eligible pretax deduction
- Post-tax items
Calculate paycheck
The result should display gross pay, taxable wages, income-tax withholding, Social Security tax, Medicare tax, applicable state and local taxes, employee deductions, and estimated net pay. Taxable wages are the portion of gross pay subject to a particular tax after permitted adjustments.
Withholding is money collected from the paycheck as a prepayment toward a tax obligation. Income-tax withholding is not the same as final annual income-tax liability, which is determined using the full year’s filing information.
Net pay is the amount the employee receives after the listed taxes and employee deductions.
Check the tax year, state, pay frequency, and entered amount before relying on the estimate.
Here is where the difference comes from: a few cents may reflect rounding, a larger amount may come from benefit deductions or Form W-4 elections, and a substantial difference may result from an incorrect pay frequency, bonus method, or location selection. The next step is to understand what each result includes.
What does the paycheck result mean?
The result separates gross earnings from taxes, employee deductions, and the net amount available after the selected pay period is processed. It is an estimate for comparison and planning, not a filed return or verified payroll calculation.
Gross pay starts the calculation. For an hourly worker, it normally combines regular earnings, overtime, taxable tips, commission, and a bonus when applicable.
For a salaried worker, the calculator converts annual salary into the gross amount for the selected pay period.
Pretax deductions can reduce wages subject to one tax without reducing wages subject to every tax. A qualifying retirement contribution, health-plan premium, or FSA election may affect income-tax wages differently from Social Security or Medicare wages.
Post-tax deductions reduce the check only after the relevant taxes have been calculated.
Federal income-tax withholding is the estimated amount sent toward annual federal income tax for the selected pay period. It reflects taxable wages and information associated with Form W-4, also called the Federal W-4.
This prepayment is not the same as final annual income-tax liability because the final calculation considers the full year’s income, credits, deductions, payments, and filing circumstances.
Federal Insurance Contributions Act (FICA) tax is the payroll-tax category that generally includes the employee’s Social Security and Medicare taxes. Any employer-paid portion is an employer cost and does not reduce the employee’s paycheck.
Additional Medicare Tax may also appear when applicable under the rules for the selected year.
State income-tax withholding depends on the selected location and its applicable rules. California, Colorado, and Connecticut, for example, do not necessarily calculate withholding in the same way.
Alaska does not impose an individual state income tax, although a paycheck may still contain federal taxes, FICA, employee deductions, or other authorized items.
Net pay is the estimated check after employee taxes and other payroll items for the selected pay period.
Here is where the difference comes from: a few cents may be rounding, a mid-range difference may reflect how an item was categorized, and a larger difference may indicate missing taxable earnings, an incorrect state, or mismatched settings. To find the cause, follow the gross-to-net methodology.
How does the calculator calculate net pay?
The calculator calculates net pay by starting with earnings for the selected pay period, deriving tax-specific wages, estimating each required subtraction, and accounting for employee deductions. Each calculation is tied to that pay period rather than treating an annual salary as one paycheck.
For an hourly pay period, calculate the starting amount with this formula:
Hourly pay-period gross pay = regular hours in the pay period × regular hourly rate + overtime pay for the pay period + tips for the pay period + commission for the pay period + bonus for the pay period + other taxable pay for the pay period
For a salaried pay period, the conversion is:
Salaried pay-period gross pay = annual salary ÷ annual number of pay periods
Paycheck calculators use explicit frequency conversions: an annual amount represents 1 year, monthly pay normally means the annual amount is divided by 12 periods, semimonthly pay by 24 periods, biweekly pay by 26 periods, and weekly pay by 52 periods.
To convert an hourly rate into pay-period earnings, multiply the hourly rate by the hours covered by that pay period. A partial first check requires the actual days or hours covered rather than a full-period salary assumption.
The calculator then identifies taxable wages for each tax. In simplified form:
Taxable wages for the selected pay period = gross pay for the selected pay period − deductions excluded from that specific tax for the selected pay period
It next uses the applicable method and Form W-4 inputs to calculate federal income-tax withholding for the selected pay period. State calculations follow the selected jurisdiction’s method, while local taxes require the correct city or locality.
Social Security, Medicare, and any applicable Additional Medicare Tax are calculated separately because their wage definitions and annual rules may differ from income-tax rules.
Finally, the estimate reaches the result through:
Estimated net pay for the selected pay period = gross pay for the selected pay period − federal withholding for the selected pay period − state and local taxes for the selected pay period − employee FICA tax for the selected pay period − pretax deductions for the selected pay period − post-tax deductions for the selected pay period
Pretax deductions appear in the final subtraction because the money still leaves the paycheck, even when an item has already reduced taxable wages. Employer-paid taxes, insurance contributions, and other business costs are separate from employee deductions and do not reduce the employee’s net pay.
Payroll systems may account for annualization, cumulative wages, special bonus methods, reciprocal agreements, local taxes, benefit eligibility, garnishments, or company-specific rounding. Here is where the difference comes from: the calculator models the facts entered, while the employer’s payroll records may contain additional facts.
A worked example makes the sequence easier to reconcile.
Worked example: salary, bonus, and deductions
This Example calculates one biweekly paycheck by tracing salary and bonus income through taxes, employee deductions, and estimated net pay. The figures are illustrative assumptions, not current rates or a prediction for a particular employee.
Example assumptions
- Annual salary:
$78,000.00 - Pay frequency: biweekly, or 26 pay periods per year
- Regular biweekly salary:
$78,000.00 ÷ 26 biweekly pay periods = $3,000.00 - Taxable bonus in this biweekly paycheck:
$500.00 - Biweekly gross pay:
$3,000.00 + $500.00 = $3,500.00 - Pretax retirement deduction for the biweekly pay period:
$175.00 - Pretax health-plan deduction for the biweekly pay period:
$125.00 - Assumed federal income-tax withholding for the biweekly pay period:
$380.00 - Assumed Social Security tax for the biweekly pay period:
$198.40 - Assumed Medicare tax for the biweekly pay period:
$46.40 - Assumed state income-tax withholding for the biweekly pay period:
$120.00 - Post-tax deduction for the biweekly pay period:
$30.00
For this example, assume the $175.00 retirement contribution and $125.00 health contribution reduce federal and state income-tax wages for the biweekly pay period. Also assume only the $125.00 health contribution reduces wages used for Social Security and Medicare.
Actual treatment depends on the plan and payroll coding.
Federal and state income-tax wages for the biweekly pay period are therefore:
$3,500.00 biweekly gross pay − $175.00 biweekly retirement deduction − $125.00 biweekly health deduction = $3,200.00 biweekly income-tax wages
The assumed FICA wages for the biweekly pay period are:
$3,500.00 biweekly gross pay − $125.00 biweekly health deduction = $3,375.00 biweekly FICA wages
To calculate estimated net pay for the biweekly pay period, take the starting amount and subtract each listed employee item:
$3,500.00 biweekly gross pay − $175.00 − $125.00 − $380.00 − $198.40 − $46.40 − $120.00 − $30.00 = $2,425.20 estimated biweekly net pay
The reconciliation shows $3,500.00 of biweekly gross pay and $1,074.80 of biweekly taxes and employee deductions, leaving estimated biweekly net pay of $2,425.20. Employer-paid taxes and costs are not subtracted because they do not reduce this employee paycheck.
For contrast, removing the $500.00 bonus would reduce biweekly gross pay from $3,500.00 to $3,000.00, but it would not necessarily reduce every tax in a simple one-to-one pattern. Bonus calculators may apply a supplemental wage method, while regular payroll may combine the bonus with ordinary earnings under another permitted method.
Compare the estimate with the bonus statement and the employer’s stated method, then confirm the methodology and source date.
Methodology, sources, and limitations
The calculator methodology applies the selected year’s framework to entered earnings, Form W-4 elections, state details, and deductions. Each currency amount is displayed with $ and rounded to the nearest cent.
As with other paycheck calculators, each output remains an estimate unless it reproduces every verified input and calculation rule used by the employer.
Update date: August 10, 2026. Date-sensitive tax tables, wage limits, state methods, and forms must be checked against the authority for the selected year before publication or use. The approved federal reference is the IRS Tax Withholding Estimator.
Overtime questions should be checked with the U.S. Department of Labor overtime tools.
The calculator should calculate regular gross pay for the selected pay period before applying tax logic. If overtime is entered, the user must provide the applicable hours and rate for that pay period or verify the governing calculation separately.
The tool does not decide whether a worker is exempt, whether particular hours qualify for overtime, or whether a contract worker should be treated as an employee.
State and local accuracy depends on correct location data. A worker who lives in one state and works in another may owe taxes in one or both jurisdictions.
Reciprocity, local taxes, disability programs, paid-leave contributions, and employer setup can change the paycheck.
The model also depends on how each deduction is classified. An item labeled “pretax” is not automatically excluded from every tax.
The plan document or payroll code should identify whether it changes federal income-tax wages, state wages, Social Security wages, Medicare wages, or only the net result.
The calculator does not determine final annual taxes, filing-status eligibility, exemption eligibility, benefit-plan treatment, garnishment priority, or worker classification. Use it to compare a small difference caused by rounding, a medium difference caused by withholding or deductions, or a large difference caused by missing earnings, pay frequency, bonus treatment, or state information.
Take those limits into account when reviewing the accuracy and privacy questions below.
Paycheck calculator FAQs
These paycheck calculator answers explain accuracy, assumptions, privacy, and the next check to make. Each answer treats the result as an estimate and identifies the document that can confirm it.
Different calculators may produce different results when their assumptions differ.
How accurate is a paycheck calculator?
Paycheck calculators can provide useful estimates when gross pay, pay frequency, Form W-4 information, state, local jurisdiction, bonus income, and deductions are entered correctly. Here is where the difference comes from: payroll may use cumulative wages, specific benefit coding, special withholding methods, garnishments, or rounding that the calculator does not have.
Why is my estimated net pay different from my pay stub?
The difference usually comes from pay-period dates, taxable-wage treatment, Form W-4 elections, state or local settings, or omitted payroll items. Compare gross pay first, then reconcile each pay-stub line in order: federal withholding, FICA, state taxes, pretax deductions, and post-tax deductions.
Does the calculator show final income taxes?
No. The calculator estimates the income-tax withholding collected during the selected pay period, while final annual income-tax liability is determined through the annual filing process.
Withholding is a prepayment, not the final tax calculation.
How should I enter a bonus?
Enter a bonus as taxable supplemental income for the pay period in which it is paid. Because payroll may calculate bonus withholding through a permitted supplemental method or by combining the bonus with regular earnings, compare the estimate with the bonus statement and the employer’s explanation.
Are payroll deductions the same as taxes?
No. Taxes are government-imposed charges, while employee deductions can include retirement contributions, insurance premiums, FSA contributions, union dues, or other authorized items.
Some employee deductions reduce particular taxable wages; others reduce only net pay. Employer-paid taxes, insurance contributions, and other employer costs are separate and do not reduce the employee’s paycheck.
Does the state selection matter?
Yes. The selected jurisdiction determines which tax framework the calculator applies, and the work location may differ from the residence location.
Confirm both when the employee works remotely, crosses a state border, or changes work locations during the year.
Is paycheck information stored?
Do not assume financial information is private unless the calculator’s published privacy notice explains collection, storage, retention, and sharing. Avoid entering names, Social Security numbers, bank details, or employer identifiers when they are unnecessary for the calculation.
What should I do if withholding looks wrong?
Check the pay frequency, entered earnings, tax year, state, Form W-4 entries, and deduction categories before changing anything. Then compare the estimate with the pay stub and ask payroll which taxable wages and withholding method it used.
Use the IRS estimator when reviewing federal income-tax withholding.
Takeaway: Reconcile every paycheck from gross pay to taxable wages, taxes, employee deductions, and net pay before deciding that one line is wrong.
The next practical step is to compare the estimate with your pay stub, confirm disputed inputs with payroll or your employer, and check the federal income-tax withholding amount through the IRS.