Tax Withholding Calculator

Every paycheck, your employer withholds federal income tax based on your W-4 form. Too little withheld and you owe a big bill in April — too much and you give the IRS an interest-free loan all year. This Tax Withholding Calculator shows you exactly how much federal tax will be taken from each paycheck, what your annual withholding looks like, and whether you’re on track or headed for a surprise.

The calculator uses the IRS percentage method for 2024 federal income tax withholding. Enter your gross pay, pay frequency, filing status, and any allowances or additional withholding, and get an instant breakdown of your federal withholding per paycheck and for the full year.

How Tax Withholding Works

Federal income tax withholding is calculated using the IRS Percentage Method. Your employer annualizes your pay (multiplies each paycheck by the number of pay periods per year), applies the standard deduction based on your W-4 filing status, and then calculates the tax owed on the taxable portion using the progressive bracket system. That annual tax amount is then divided back down to a per-paycheck amount.

The 2024 federal income tax brackets for single filers are: 10% on income up to $11,600; 12% from $11,601 to $44,725; 22% from $44,726 to $95,375; 24% from $95,376 to $201,050; 32% from $201,051 to $383,900; 35% from $383,901 to $487,450; and 37% above $487,450. Married filing jointly brackets are approximately double the single brackets.

Keep in mind that this calculator estimates federal income tax withholding only. Your actual paycheck deductions also include Social Security (6.2%), Medicare (1.45%), state income taxes (which vary by state), and any pre-tax deductions like 401(k) contributions or health insurance premiums — all of which reduce your taxable income further.

Examples

Example 1 — Single filer, bi-weekly pay of $2,500: Annualized income = $65,000. Standard deduction = $14,600. Taxable income = $50,400. Federal tax = $1,160 (10%) + $3,993 (12%) + $1,254.50 (22%) = $6,407.50. Per paycheck withholding = $6,407.50 ÷ 26 = $246.44.

Example 2 — Married filing jointly, monthly pay of $6,000: Annualized income = $72,000. Standard deduction = $29,200. Taxable income = $42,800. Federal tax = $2,320 (10%) + $2,352 (12%) = $4,672. Per paycheck withholding = $4,672 ÷ 12 = $389.33.

Example 3 — Head of household, semi-monthly pay of $3,500: Annualized income = $84,000. Standard deduction = $21,900. Taxable income = $62,100. Federal tax = $1,655 (10%) + $5,466 (12%) = $7,121. Per paycheck withholding = $7,121 ÷ 24 = $296.71.

2024 Federal Standard Deductions

Filing Status	Standard Deduction
Single / Married Filing Separately	$14,600
Married Filing Jointly	$29,200
Head of Household	$21,900

2024 Federal Income Tax Brackets (Single Filers)

Taxable Income	Tax Rate
$0 – $11,600	10%
$11,601 – $44,725	12%
$44,726 – $95,375	22%
$95,376 – $201,050	24%
$201,051 – $383,900	32%
$383,901 – $487,450	35%
Over $487,450	37%

Frequently Asked Questions

What is tax withholding?

Tax withholding is the portion of your paycheck your employer sends directly to the IRS on your behalf before you receive your take-home pay. The amount is based on your W-4 form, which tells your employer your filing status and any additional withholding preferences. At tax time, the total amount withheld is compared against your actual tax liability — if too much was withheld, you get a refund; if too little, you owe the difference.

How do I change my federal tax withholding?

To change your withholding, submit a new W-4 form to your employer. You can download the current W-4 from IRS.gov. Key fields include your filing status, whether you have dependents, other income sources (like a second job or investment income), deductions above the standard deduction, and any additional flat dollar amount you want withheld each pay period. Changes typically take effect within one to two pay periods.

Why might my withholding be different from this calculator's estimate?

Several factors can cause your actual withholding to differ from this estimate. Pre-tax deductions — such as 401(k) contributions, health insurance premiums, FSA contributions, or commuter benefits — reduce your taxable income before withholding is calculated. If you claimed allowances for dependents on your W-4, or if you have multiple jobs, your employer uses different calculation methods that affect the result. This calculator provides a baseline estimate using the standard deduction only.

What is the difference between withholding and my actual tax bill?

Withholding is an advance payment toward your tax bill — it's the IRS collecting taxes throughout the year rather than waiting until April. Your actual tax bill is determined when you file your return: total income from all sources, minus all deductions and credits, determines what you truly owe. If your withholding was higher than your actual liability, the excess comes back as a refund. If lower, you owe the difference.

Should I aim for a big refund or break even?

Most financial advisors recommend aiming to break even — withhold approximately what you'll owe. A large refund feels nice but means you gave the government an interest-free loan of your own money throughout the year. On the other hand, under-withholding can trigger an IRS underpayment penalty if you owe more than $1,000 at filing time and haven't met the safe harbor rules. The goal is accurate withholding — neither a big refund nor a surprise bill.

Does this calculator include state taxes?

No — this calculator covers federal income tax withholding only. State income tax rates and rules vary significantly by state, from 0% in states like Texas and Florida to over 13% in California. Your paycheck deductions also include FICA taxes: Social Security at 6.2% (up to the annual wage base) and Medicare at 1.45% (plus an additional 0.9% for high earners). To see your full paycheck breakdown including state taxes, use our paycheck calculator.