IRS Withholding Calculator
Estimate your 2026 federal income tax withholding using the IRS percentage method. Enter your W-4 information, pay frequency, and earnings to see how much tax should be withheld from each paycheck. Updated for the One, Big, Beautiful Bill Act (OBBBA).
How IRS Withholding Works
Federal income tax withholding is the amount your employer takes out of each paycheck and sends to the IRS on your behalf. The amount withheld is based on your Form W-4, which tells your employer your filing status, number of dependents, and any additional adjustments you want to make.
The IRS provides two main methods for calculating withholding:
- Percentage Method: Used by most automated payroll systems. It applies the federal tax brackets to your annualized taxable income.
- Wage Bracket Method: A simplified table-based approach for manual payroll processing.
This calculator uses the percentage method as outlined in IRS Publication 15-T, which is the standard for modern payroll systems.
How the Withholding Calculator Works
The calculator follows the IRS percentage method:
Step 1: Annualize your taxable pay: (Gross Pay − Pre-Tax Deductions) × Number of Pay Periods
Step 2: Subtract your standard deduction and any additional deductions (senior, blind, itemized).
Step 3: Apply the 2026 tax brackets to your taxable income to calculate annual tax liability.
Step 4: Divide the annual tax by the number of pay periods and add any extra withholding.
2026 Standard Deductions: Single/MFS $16,100, Married $32,200, Head of Household $24,150. 2026 Tax Brackets: 10%, 12%, 22%, 24%, 32%, 35%, and 37%.
Understanding Your Form W-4
- Step 1: Enter your personal information and filing status.
- Step 2: Multiple jobs or spouse works — adjust withholding if you have more than one job.
- Step 3: Claim dependents — each dependent reduces your withholding.
- Step 4: Other adjustments — other income, deductions, and extra withholding.
This calculator uses the same inputs as the current Form W-4 to estimate your withholding.
❓ IRS Withholding Calculator FAQ
How is federal income tax withholding calculated?
Your employer calculates withholding using your Form W-4 information, your pay frequency, and the IRS withholding tables in Publication 15-T. The percentage method applies the tax brackets to your annualized taxable income.
What is the difference between withholding and actual tax liability?
Withholding is an estimate of the tax you'll owe, taken from each paycheck. Your actual tax liability is calculated when you file your tax return. If too much was withheld, you get a refund. If too little was withheld, you owe taxes.
What is the standard deduction for 2026?
For 2026, the standard deduction is $16,100 for single filers and married filing separately, $32,200 for married filing jointly, and $24,150 for head of household.
What are the 2026 federal tax brackets?
The 2026 tax brackets are 10%, 12%, 22%, 24%, 32%, 35%, and 37%. The income thresholds vary by filing status and have been adjusted for inflation under the One, Big, Beautiful Bill Act.
How do I fill out a W-4 form?
Form W-4 has five steps: Step 1 (personal information), Step 2 (multiple jobs), Step 3 (dependents), Step 4 (other adjustments), and Step 5 (signature). Use the IRS Tax Withholding Estimator to help you fill it out accurately.
What is the supplemental wage withholding rate for 2026?
For 2026, the supplemental wage withholding rate (for bonuses, commissions, etc.) is 22% for amounts up to $1 million, and 37% for amounts over $1 million.
What is the backup withholding rate for 2026?
The backup withholding rate for 2026 is 24%.
How do I claim exempt from withholding?
On the 2026 Form W-4, you can check the new checkbox below Step 4(c) to claim exemption from federal income tax withholding. Previously, you had to write "Exempt" on the form.
What is the Social Security wage base for 2026?
The Social Security wage base for 2026 is $184,500. Earnings above this amount are not subject to Social Security tax.
How does the new W-4 form differ from the old one?
The new W-4 (2020 and later) removed withholding allowances and replaced them with a simpler system. It asks for filing status, dependents, and other income adjustments. This calculator uses the same structure.
What is the One, Big, Beautiful Bill Act (OBBBA)?
OBBBA is legislation passed in July 2025 that made permanent many provisions of the Tax Cuts and Jobs Act, including the individual tax rates and increased standard deduction. It also introduced new deductions for qualified tips and overtime compensation.
How do I adjust my withholding if I have multiple jobs?
If you have multiple jobs or a working spouse, use Step 2 of Form W-4. You can use the IRS Tax Withholding Estimator to determine the correct amount to withhold from each job.
What is the difference between the percentage method and the wage bracket method?
The percentage method applies the tax brackets to your income and is used by automated payroll systems. The wage bracket method uses tables to look up the withholding amount based on your pay and filing status.
How accurate is this withholding calculator?
This calculator provides an estimate based on the IRS percentage method and 2026 tax rates. For precise withholding, use the IRS Tax Withholding Estimator or consult a tax professional.
What is the tax rate for qualified tips and overtime compensation in 2026?
For tax years 2025-2028, OBBBA allows employees to deduct up to $25,000 of qualified tips and up to $12,500 of qualified overtime compensation ($25,000 for married filing jointly).
How do I calculate my annual withholding?
Multiply your per-paycheck withholding by the number of pay periods in a year (52 for weekly, 26 for bi-weekly, 24 for semi-monthly, 12 for monthly). This calculator shows both per-paycheck and annual withholding.
What is the difference between gross pay and taxable pay?
Gross pay is your total earnings before any deductions. Taxable pay is gross pay minus pre-tax deductions like 401(k), HSA, and health insurance premiums. Only taxable pay is subject to federal income tax withholding.