Free SmartBooks CPA Tool

Free W-4 Withholding Calculator

Estimate whether your paycheck withholding is enough before tax season surprises you.

Use a simple W-2 estimate to see your annual federal withholding, possible extra withholding per paycheck, and a suggested Form W-4 setup.

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Paycheck review

Quick W-4 checkup

Designed for married couples, W-2 employees, and taxpayers who want to avoid owing unexpectedly.

Step 1Filing status

Step 3Dependent credits

Step 4(c)Extra withholding

SimpleEveryday taxpayer inputs

W-2 focusedPaycheck withholding view

EstimateFederal only

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Calculator

Enter your paycheck details

This quick estimate uses 2026 federal tax brackets, the standard deduction, and simple W-4 dependent credit inputs.

Filing and income

Filing status Taxpayer annual wages Other income not from jobs

Paycheck withholding

Pay frequency Current federal withholding per paycheck

Credits and refund cushion

Dependents under age 17 Other dependents Desired refund cushion

Estimated output

Your withholding snapshot

Enter your details and calculate to see your W-4 estimate.

Estimated annual federal withholding $0

Estimated additional withholding per paycheck $0

Estimated federal tax after credits $0

Projected gap vs target cushion $0

Suggested Form W-4 setup

Step 1Select filing status.

Step 2Review multiple jobs/spouse works rules.

Step 3$0 dependent credit amount.

Step 4(c)$0 extra withholding per paycheck.

SmartBooks CPA support

Need help updating your W-4? Book a consultation.

SmartBooks CPA can review your paycheck withholding, dependents, other income, bonuses, and year-end tax planning before you submit a new W-4.

Need help updating your W-4? Book a consultation.

Important disclaimer

This calculator is for educational purposes only and provides an estimate. Actual tax liability depends on your full tax situation, credits, deductions, bonuses, self-employment income, and state taxes. Consult a tax professional before submitting a new Form W-4.