How to Calculate Net Pay
Net pay is the amount of money an employee takes home after all deductions have been subtracted from their gross earnings. Calculating net pay accurately is essential for both employers running payroll and employees who want to verify their paychecks. This guide breaks the calculation into clear steps so you can determine net pay for any pay period.
What Is Net Pay?
Net pay, often called take-home pay, is the amount deposited into an employee's bank account or printed on their paycheck. It is always less than gross pay because federal, state, and local taxes plus voluntary deductions are subtracted first. Understanding the difference between gross and net pay is fundamental to managing personal finances and budgeting effectively.
- Gross pay - total earnings before any deductions
- Net pay - the amount actually received after all deductions
- The gap between gross and net is typically 25% to 40% for most workers
- Net pay appears on your pay stub and matches your direct deposit amount
Step 1: Determine Gross Pay
Start by calculating the total earnings for the pay period. For hourly employees, multiply the number of hours worked by the hourly rate, then add any overtime (typically 1.5x the regular rate for hours over 40 per week). For salaried employees, divide the annual salary by the number of pay periods in the year (e.g., 26 for biweekly, 24 for semi-monthly, 12 for monthly).
- Hourly: Regular hours x hourly rate + overtime hours x overtime rate
- Salaried (biweekly): Annual salary / 26
- Salaried (semi-monthly): Annual salary / 24
- Salaried (monthly): Annual salary / 12
- Add bonuses, commissions, tips, or other supplemental earnings to the base amount
Step 2: Calculate Federal Income Tax Withholding
Federal income tax is calculated using IRS tax tables or the percentage method outlined in Publication 15-T. The amount withheld depends on the employee's filing status, number of allowances or adjustments from their W-4, and the amount of taxable wages for the period. Pre-tax deductions (like 401(k) contributions and health insurance premiums) are subtracted from gross pay before calculating federal tax.
- Refer to the employee's W-4 for filing status and additional withholding
- Subtract pre-tax deductions from gross pay to get federal taxable wages
- Use the IRS percentage method or wage bracket tables from Publication 15-T
- The federal brackets range from 10% to 37%, and the thresholds are adjusted for inflation each year
- Additional withholding from W-4 Line 4(c) is added to the calculated amount
Step 3: Calculate State Income Tax
State income tax varies widely. Nine states have no income tax at all (Alaska, Florida, Nevada, New Hampshire, South Dakota, Tennessee, Texas, Washington, and Wyoming). Others use either a flat rate or a progressive bracket system similar to the federal model. Each state publishes its own withholding tables or formulas that employers must follow.
- No income tax states: AK, FL, NV, NH, SD, TN, TX, WA, WY
- Flat tax states (e.g., Illinois at 4.95%, Colorado at 4.4%) apply a single rate to all income
- Progressive tax states (e.g., California, New York) have graduated brackets
- Some states also require local income tax withholding (e.g., New York City, many Ohio municipalities)
Step 4: Calculate FICA Taxes
FICA stands for the Federal Insurance Contributions Act, which funds Social Security and Medicare. The employee's share of Social Security tax is 6.2% of gross wages up to the annual wage base ($184,500 in 2026). Once cumulative wages exceed the wage base, Social Security withholding stops for the rest of the year. Medicare tax is 1.45% on all wages with no cap, and an Additional Medicare Tax of 0.9% applies to wages exceeding $200,000.
- Social Security: 6.2% of gross wages up to $184,500 (2026 limit)
- Medicare: 1.45% of all gross wages (no cap)
- Additional Medicare Tax: 0.9% on wages over $200,000
- Total employee FICA for most workers: 7.65% of gross pay
- Employer matches the 6.2% Social Security and 1.45% Medicare (but not the 0.9% surtax)
Step 5: Subtract Other Deductions
After taxes, subtract any remaining post-tax deductions from the pay. These include Roth retirement contributions, union dues, wage garnishments ordered by a court, and voluntary benefits the employee elected. Some deductions like child support garnishments have legal limits on the percentage of disposable income that can be withheld.
- Roth 401(k) or Roth IRA payroll contributions
- Union or association dues
- Court-ordered garnishments (child support, creditor judgments)
- Student loan garnishments
- Post-tax insurance premiums (supplemental life, disability)
- Charitable payroll deductions
The Net Pay Formula
Bringing all the steps together, the net pay formula is: Net Pay = Gross Pay - Pre-Tax Deductions - Federal Income Tax - State Income Tax - Social Security Tax - Medicare Tax - Post-Tax Deductions. For example, an employee earning $5,000 gross per biweekly period with $500 in pre-tax deductions, $450 in federal tax, $200 in state tax, $279 in Social Security, and $65.25 in Medicare would have a net pay of approximately $3,505.75 before any post-tax deductions.
- Net Pay = Gross Pay - Pre-Tax Deductions - Federal Tax - State Tax - Social Security - Medicare - Post-Tax Deductions
- Always calculate pre-tax deductions before computing income taxes
- FICA taxes are calculated on gross pay (not reduced by pre-tax deductions, except for Section 125 plans)
- Use PaymentStub.com's pay stub generator to automate the entire calculation