Payroll Calculator · 2025 IRS Rates
Hourly Paycheck Calculator for Weekly and Biweekly Hourly Workers (2025–2026)
Built for hourly workers who think in hours-per-week. Enter your hourly rate and weekly hours to estimate federal take-home pay after income tax, Social Security, and Medicare. If you are paid an annual salary, use the main Paycheck Calculator instead.
Your Pay Details
W-4 Adjustments (Optional)
Annual total from W-4 Step 3
Per pay period additional amount
Other income to include in withholding
Amounts above standard deduction
State Tax (Optional)
Enter your state flat withholding rate. Leave blank for states with no income tax (TX, FL, NV, WA, WY, SD, AK, TN, NH).
Enter your hourly rate and hours per week, then press Calculate.
Short Answer
The hourly paycheck calculator estimates net take-home pay after federal income tax withholding, Social Security tax (6.2%), and Medicare tax (1.45%). For a single filer earning $18/hour at 40 hours per week on a biweekly schedule, gross pay is $1,440 per period. Federal withholding is approximately $164. Net take-home is approximately $1,166 before state taxes.
Key Takeaways
- Federal income tax withholding from hourly paychecks is calculated using IRS Publication 15-T and your W-4 filing status. It is not a flat rate.
- Social Security tax is 6.2% of gross wages up to the 2025 wage base of $176,100. Medicare is 1.45% with no cap.
- The gap between gross pay and net pay depends on filing status, income level, and W-4 elections. It is not fixed across workers.
- An additional 0.9% Medicare surtax applies on wages exceeding $200,000 for single filers ($250,000 for married filing jointly).
- State income tax varies by state. Nine states have no state income tax. Most others use graduated or flat withholding rates.
2025 Payroll Tax Quick Reference
| Tax | Rate | Wage Base / Threshold | Notes |
|---|---|---|---|
| Federal Income Tax | 10%–37% | No cap on income | Graduated; based on W-4 filing status and Publication 15-T tables |
| Social Security (OASDI) | 6.2% employee | $176,100 (2025) | Withholding stops at the wage base. Employer matches 6.2%. |
| Medicare (HI) | 1.45% employee | No wage base limit | Employer matches 1.45%. |
| Additional Medicare Tax | 0.9% | $200,000 (single/HOH); $250,000 (MFJ); $125,000 (MFS) | Employee only. Employer does not match. Withheld by employer on wages over $200,000. |
How the Hourly Paycheck Calculator Works
Step 1: Gross Pay Per Period
Gross pay equals hourly rate multiplied by hours worked in the pay period. The number of hours per period depends on pay frequency:
- Weekly: hours/week × 1
- Biweekly: hours/week × 2
- Semi-monthly: hours/week × 52 ÷ 24
- Monthly: hours/week × 52 ÷ 12
Step 2: Social Security Tax
Social Security is 6.2% of gross pay per period, up to the annualized wage base of $176,100. Once cumulative annual wages exceed this limit, Social Security withholding stops for the remainder of the year. The calculator estimates per-period withholding without tracking year-to-date totals.
Step 3: Medicare Tax
Standard Medicare is 1.45% of all gross wages. The Additional Medicare Tax of 0.9% applies to wages exceeding $200,000 (single, HOH) or $250,000 (MFJ) on an annualized basis. This calculator estimates based on annualized wages exceeding the threshold.
Step 4: Federal Income Tax Withholding
This calculator uses the IRS Publication 15-T percentage method (annualized approach) for 2025:
- Annualize gross pay: multiply per-period gross by the number of pay periods per year.
- Add W-4 Step 4a other income (if any). Subtract W-4 Step 4b additional deductions (if any).
- Apply the percentage method table for your filing status to the adjusted annual amount.
- Subtract W-4 Step 3 dependent credits from the tentative annual withholding.
- Divide by the number of pay periods to get per-period federal withholding.
- Add W-4 Step 4c extra withholding per period.
The result reflects standard W-4 withholding for an employee who has not checked the Step 2 Multiple Jobs box.
Step 5: State Income Tax (Optional)
The calculator applies a flat state income tax rate to gross pay when a state rate is entered. This is an approximation. States with graduated rates require a separate state-specific calculation. States with no income tax (Texas, Florida, Nevada, Washington, Wyoming, South Dakota, Alaska, Tennessee, New Hampshire) should leave this field blank.
Practitioner Insight
A common issue we see at LMN Tax Inc. is hourly workers who are surprised by a large tax bill at filing time. This typically occurs when someone works two jobs and each employer withholds at the "single, no dependents" rate as if that were the worker's only income. The combined income lands in a higher bracket than either employer accounted for. Filing a new W-4 with the Multiple Jobs Worksheet completed would have prevented the shortfall.
We also see the opposite: overwithholding from workers who simply never updated their W-4 after life changes. A worker who married, had children, and now qualifies for child tax credits may be withholding hundreds more than necessary per paycheck. The IRS withholding estimator at IRS.gov takes about ten minutes and often identifies the adjustment immediately.
A third pattern specific to hourly workers: overtime pay received mid-year can push an employee into a higher bracket for those periods under the annualized method. The employer applies a higher per-period withholding rate during overtime weeks, which sometimes results in a refund rather than a balance due. Clients in this situation are often confused when their refund is larger than expected. The answer is usually that withholding on the overtime pay was calculated at an annualized rate that overstated their full-year bracket.
Real-World Scenario: Biweekly Paycheck at $18/Hour
Sarah earns $18.00 per hour as a full-time retail cashier in Texas, working 40 hours per week. She files as single with a standard W-4 and no adjustments. She receives a biweekly paycheck (26 pay periods per year).
How the federal withholding is calculated: Sarah's annualized gross is $37,440. Applied to the 2025 single filer percentage method table: $1,192.50 (10% on first $11,925) plus $3,061.80 (12% on $25,515 from $11,925 to $37,440) equals $4,254.30 annual withholding. Divided by 26 periods: $163.63 per paycheck. Her effective federal income tax rate on gross wages is 11.4%.
If Sarah had the same job in California (6% flat-rate estimate), her state withholding would be approximately $86.40 per period, reducing take-home pay to roughly $1,079.89.
When This Calculator Gives a Less Accurate Estimate
- Two or more jobs: Each employer withholds independently using your W-4 elections. If you work two jobs and each treats you as a single-income earner, total withholding will likely be insufficient. This calculator estimates one employer's withholding at a time.
- Pre-tax deductions not entered: Contributions to a 401(k), traditional pre-tax 403(b), health savings account (HSA), or employer health insurance premiums reduce taxable wages. This calculator does not include pre-tax benefit deductions. Actual withholding will be lower if these deductions apply.
- Mid-year W-4 changes: The percentage method assumes the same elections apply for the full year. Changing your W-4 mid-year or starting a new job mid-year causes the annualized method to over- or under-estimate remaining withholding for that year.
- States with graduated rates: The state rate field uses a flat percentage. States including California, New York, and Illinois use graduated brackets. For residents of these states, the actual withholding may differ from a simple flat-rate estimate.
- Irregular hours or overtime: This calculator assumes consistent hours every pay period. Overtime hours, bonus payments, or commission income will change the gross and may trigger higher withholding in those specific periods under the IRS supplemental wage rules.
Frequently Asked Questions
How is federal income tax withheld from an hourly paycheck?
Employers use IRS Publication 15-T to calculate federal income tax withholding. The standard method annualizes your gross pay for the period, applies the percentage method tax tables based on your filing status, then divides the result by the number of pay periods per year. Your W-4 elections directly affect the amount withheld each period.
What percentage of my hourly paycheck goes to Social Security and Medicare?
Social Security is 6.2% of gross wages up to the 2025 wage base of $176,100. Medicare is 1.45% of all gross wages. An additional 0.9% Medicare surtax applies on wages exceeding $200,000 for single filers or $250,000 for married filing jointly. These FICA taxes are not affected by W-4 elections.
Does working more hours increase my tax rate?
Yes, in some cases. Federal income tax uses graduated brackets. Working more hours increases your annualized wage, which may move a portion of earnings into a higher bracket. Social Security and Medicare are flat percentages, so they increase proportionally with each additional hour. The marginal rate increase depends on where your annualized income falls within the bracket structure.
What is the Social Security wage base for 2025?
The Social Security wage base for 2025 is $176,100. Social Security tax at 6.2% applies to wages up to this amount. Once your cumulative wages for the year exceed $176,100, Social Security withholding stops for the remainder of the year. Medicare tax has no wage base limit and continues at 1.45% on all wages throughout the year.
How does pay frequency affect my take-home pay?
Pay frequency changes the size of each paycheck but not your total annual net pay under standard withholding. A biweekly paycheck is larger than a weekly one because it covers two weeks of wages. Federal income tax withholding is calibrated by Publication 15-T to produce the same total annual withholding regardless of frequency, assuming consistent wages and elections.
What pre-tax deductions reduce my federal income tax withholding?
Pre-tax deductions that reduce federal income tax withholding include 401(k) and 403(b) traditional contributions, employer-sponsored health insurance premiums under a Section 125 cafeteria plan, FSA contributions, and HSA contributions made through payroll. These deductions reduce the gross wages subject to income tax withholding. They do not reduce Social Security or Medicare taxes (with limited exceptions for some FSA elections).
I work two hourly jobs. Will I owe more taxes at filing time?
Likely yes if each employer withholds independently using single-job W-4 elections. When combined income from two jobs falls in a higher bracket than either employer anticipated, you will be under-withheld. Complete the Multiple Jobs Worksheet on Form W-4 and submit updated W-4 forms to one or both employers. The IRS withholding estimator at IRS.gov provides a precise adjustment amount.
Does this calculator include overtime pay?
This calculator uses a consistent hourly rate for all hours entered. It does not distinguish between regular and overtime hours at different rates. To estimate a paycheck that includes overtime, you can run the calculator separately for regular hours and overtime hours, then add the results. Alternatively, calculate your weighted average hourly rate for the period and use that as the input.
How do I reduce the federal income tax withheld from my paycheck?
You can reduce withholding by submitting a new Form W-4 to your employer. Common adjustments include claiming dependents in Step 3 (which directly reduces withholding dollar-for-dollar by the credit amount) and entering itemized deductions in Step 4b if they exceed the standard deduction. You cannot change FICA withholding rates through the W-4. If you are over-withheld, reducing withholding increases take-home pay throughout the year rather than receiving a large refund.
What is the Additional Medicare Tax and when does it apply?
The Additional Medicare Tax is 0.9% on wages exceeding $200,000 for single filers, $250,000 for married filing jointly, and $125,000 for married filing separately. Employers are required to withhold the additional 0.9% once an individual employee's wages for the year exceed $200,000, regardless of filing status. Any reconciliation for different thresholds by filing status is done on Form 8959 at the time you file your return.
What To Do Next
If you are an hourly employee and received overtime pay in 2025, check whether you qualify for the OBBBA overtime deduction under IRC §225. The deduction reduces federal taxable income by your overtime premium amount (up to $12,500 for single filers). Use the No Tax on Overtime Calculator to estimate your deduction before filing your 2025 return.
If you are self-employed or receive 1099 income in addition to hourly wages, your total self-employment tax obligation is separate from the payroll withholding estimated here. The 1099 Tax Calculator estimates self-employment tax and quarterly estimated payment obligations for contract and freelance income.
Once you receive your actual paycheck, use our How to Read a Pay Stub guide to verify each line item against these estimates. The guide explains gross pay, FICA deductions, federal withholding, pre-tax deductions, and net pay using a sample stub with 2025 IRS rates.
For a full explanation of why each of these tax lines appears and how it is calculated, see the How Payroll Taxes Work guide. It covers the complete payroll tax system: Social Security rates, Medicare thresholds, FUTA, employer-side matching, and why two workers at the same wage can take home different net pay.
If your withholding estimate does not match your expected tax liability, the issue is usually your W-4 elections. The W-4 Withholding Explained guide walks through each of the five W-4 steps, explains how each election changes the federal income tax withheld per period, and covers when to submit a new W-4 after a life change such as marriage, a second job, or a dependent change.
If your calculator result shows a FICA amount that seems higher than expected, the reason is often how your voluntary deductions are classified. Traditional 401(k) contributions reduce income tax withholding but not Social Security or Medicare. Health insurance premiums through a Section 125 cafeteria plan reduce both. The Understanding Payroll Deductions guide explains pre-tax vs post-tax deductions, the FICA treatment of each deduction type, and 2025 contribution limits for 401(k), FSA, and HSA.
At tax filing time, the W-2 Tax Calculator estimates your federal income tax liability based on W-2 Box 1 wages and the 2025 standard deduction. Enter Box 2 withholding to see whether you expect a refund or a balance due before you file your 1040.
To see your full net pay after all benefit deductions — not just taxes — the Take-Home Pay Calculator adds inputs for 401(k), health insurance, FSA, HSA, dental/vision, and Roth 401(k). It also shows which deductions reduce FICA wages and which reduce only federal income tax.
If you are comparing a job offer that uses an hourly rate to one that uses an annual salary, the Hourly to Salary Calculator converts your hourly rate to annual gross pay across all pay frequencies and shows estimated net take-home after FICA and federal income tax, without requiring you to run a per-paycheck simulation first.
For a single calculator that handles both hourly and salaried inputs with a mode toggle, the Paycheck Calculator lets you switch between pay types in one interface. Use it when you need to compare a salaried position against an hourly rate without switching tools.
Related Resources
This calculator covers federal payroll withholding. For a complete picture of your tax position, several adjacent tools on this site address related needs.
Sources
- IRS Publication 15-T (2025) — Federal Income Tax Withholding Methods
- IRS Publication 15 (2025) — Employer's Tax Guide (Circular E)
- IRS Tax Topic 751 — Social Security and Medicare Withholding Rates
- IRS — Additional Medicare Tax
- IRS Form W-4 (2025) — Employee's Withholding Certificate
- IRS Rev. Proc. 2024-40 — 2025 Tax Year Inflation Adjustments