W-4 Withholding Calculator 2026

Step 1 — Enter your annual salary. Use your gross pay (before taxes or deductions). If you have a second job or other income, add that in the "Other Annual Income" field under Advanced Options.

Step 2 — Select your filing status. Use the status you plan to use on your 2026 tax return. If you're unsure, "Single" is the most conservative option and will result in slightly higher withholding.

Step 3 — Choose your pay frequency. Select how often you receive a paycheck — weekly, bi-weekly, semi-monthly, or monthly. This determines how the annual tax is split across paychecks.

Step 4 — Review advanced options (optional). If you itemize deductions, claim tax credits (like the Child Tax Credit), or want to add extra withholding to cover a side job, enter those amounts under Advanced Options.

Step 5 — Read your results. The "Recommended Withholding Per Paycheck" is the amount to enter in Step 4(c) of your W-4 if you want to break even at filing. The effective tax rate and bracket breakdown help you understand your overall tax picture.

The W-4 Employee's Withholding Certificate is the IRS form you complete when starting a new job or when your tax situation changes. It tells your employer how much federal income tax to subtract from each paycheck. Getting this right means no surprises at tax time.

Federal income tax is a pay-as-you-go system. Rather than writing one check to the IRS in April, the government requires most employees to pay throughout the year via payroll withholding. If your employer withholds too little, you owe the shortfall when you file — and you may owe a penalty if the gap is large enough. Too much withheld, and you get a refund in the spring, but you've effectively loaned the government your money interest-free all year.

The 2026 W-4 reflects updated tax brackets and the higher standard deductions introduced by the One Big Beautiful Bill Act (OBBBA): $15,000 for single filers, $30,000 for married filing jointly, and $22,500 for head of household. These changes reduce taxable income for most earners and may lower the withholding you need compared to prior years.

This calculator uses the IRS Percentage Method from Publication 15-T, adapted for 2026 OBBBA-adjusted brackets.

Standard Deductions (2026)

Filing Status	Standard Deduction
Single	$15,000
Married Filing Jointly	$30,000
Married Filing Separately	$15,000
Head of Household	$22,500

2026 Federal Tax Brackets (Single)

Rate	Taxable Income (Single)
10%	$0 – $12,150
12%	$12,151 – $46,275
22%	$46,276 – $99,325
24%	$99,326 – $206,675
32%	$206,676 – $260,950
35%	$260,951 – $622,050
37%	Over $622,050

Calculation steps:

1. Taxable Income = Gross Income − Standard Deduction − Itemized Additions
2. Annual Tax = Sum of each bracket's tax using the percentage method
3. Net Annual Tax = Annual Tax − Tax Credits
4. Per-Period Withholding = Net Annual Tax ÷ Number of Pay Periods

Married Filing Jointly brackets are exactly 2× single limits. Head of Household brackets are approximately 1.43× single limits.

Example 1: Single Earner, $60,000 Salary

Sarah earns $60,000/year, files single, and is paid bi-weekly (26 pay periods).

• Taxable Income: $60,000 − $15,000 = $45,000
• Tax: (10% × $12,150) + (12% × $32,850) = $1,215 + $3,942 = $5,157
• Per-Paycheck Withholding: $5,157 ÷ 26 = $198
• Effective Rate: 8.6%

Example 2: Married Couple, $120,000 Combined Salary

Michael and Jen file jointly with $120,000 in household income, paid semi-monthly (24 periods).

• Taxable Income: $120,000 − $30,000 = $90,000
• Tax: (10% × $24,300) + (12% × $65,700) = $2,430 + $7,884 = $10,314
• Per-Paycheck Withholding: $10,314 ÷ 24 = $430
• Effective Rate: 8.6%

Example 3: High Earner with Side Income, $150,000 + $30,000

Alex earns $150,000 at their primary job plus $30,000 in consulting income. Files single, paid bi-weekly.

• Total Gross: $180,000. Taxable Income: $180,000 − $15,000 = $165,000
• Tax: $1,215 + (12% × $34,125) + (22% × $53,050) + (24% × $65,675) = $1,215 + $4,095 + $11,671 + $15,762 = $32,743
• Per-Paycheck Withholding: $32,743 ÷ 26 = $1,259
• Alex's employer only withholds based on the $150,000 salary, so Alex should add ~$460/period extra in Step 4c to cover the consulting income.