United States · 2026 Payroll

2026 W-4 Withholding Calculator

Model how common 2026 Form W-4 entries affect estimated federal income-tax withholding.

2026 IRS rulesUS dollarsMethodology ↓

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Enter your values and calculate to see the result.

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What this calculator includes

It models a 2020-or-later Form W-4 using filing status, Step 2 checkbox, Step 3 credits, Step 4(a) other income, Step 4(b) deductions and Step 4(c) additional withholding. It is designed for planning, not payroll filing.

Official methodology

Federal income-tax withholding uses the IRS 2026 Publication 15-T percentage method for automated payroll systems and a 2020-or-later Form W-4. Social Security uses 6.2% up to the 2026 $184,500 wage base; Medicare uses 1.45% with no wage base, and employer withholding of Additional Medicare Tax begins above $200,000 of wages.

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How to use this calculator

  1. Set Gross pay this period (default 3000).
  2. Set Pay frequency (default Weekly).
  3. Set W-4 filing status (default Single / Married filing separately).
  4. Set W-4 Step 2 checkbox (default Not checked).
  5. Set W-4 Step 4(a): other annual income (default 0).
  6. Set W-4 Step 4(b): annual deductions (default 0).
  7. Set W-4 Step 3: annual credits (default 0).
  8. Set W-4 Step 4(c): extra withholding per paycheck (default 0).
  9. Select Calculate to update the result. Reset restores the starting values.

Educational estimate. Actual payroll can differ because of pretax benefits, taxable fringe benefits, state/local taxes, W-4 details, payroll rounding and employer systems.

Maintained by the CalculatorsOnline Editorial Team. Read our methodology policy.