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Tax Withholding Calculator
Simplified TY2026 annualized federal income-tax withholding with optional extra withholding. Not Pub 15-T tables. Educational only.
Limitation: Educational estimate for U.S.
How to Estimate Federal Withholding
Model one job’s federal income-tax withholding—not FICA and not net pay.
Select filing status and pay frequency.
Distinct from Paycheck Calculator
Paycheck Calculator subtracts withholdings you enter. This page estimates federal income-tax withholding from TY2026 brackets. Alias /w4-calculator redirects here.
What Withholding Results Mean
Estimated federal income-tax withholding per period under a simplified annualized model—not Pub 15-T employer tables.
Withholding Examples
Monthly $5,000 single
Scenario inputs
Primary result
Annualizes wages, applies standard deduction, divides TY2026 tax.
Extra $50 biweekly
Scenario inputs
Primary result
Extra withholding raises each period’s federal income-tax line.
Educational estimate
Confirm with IRS.gov or a qualified professional before filing or changing payroll elections.
Frequently Asked Questions
Still have questions about this calculation?
Try the CalculatorAnnualized Withholding Formula
Educational approximation—not Publication 15-T worksheets.
Formula
Annualize
annualWages = grossPayPerPeriod × periodsPerYear
Model taxable
taxable = max(0, annualWages − preTax − deduction)
Per period
withholding = annualOrdinaryTax ÷ periods + extra
Scientific Background
Assumptions: one job, TY2026 federal ordinary tax, simplified annualization. Limitations: multi-job W-4 Step 2, dependents, Other income, and Pub 15-T percentage methods not encoded. Sources: https://www.irs.gov/publications/p15t and https://www.irs.gov/pub/irs-drop/rp-25-32.pdf
Sources & review
Tax Withholding Calculator documents the references behind its formulas and assumptions. Always treat results as educational estimates, not personalized professional advice.
Last reviewed
July 22, 2026
IRS digital assets / tax reference
Internal Revenue Service (IRS)
https://www.irs.gov/publications/p15tIRS digital assets / tax reference
Internal Revenue Service (IRS)
https://www.irs.gov/pub/irs-drop/rp-25-32.pdfFree Calculator Hub methodology
Free Calculator Hub
/methodology
See our methodology and corrections policy.