Tax Calculator

Use the official IRS and Arizona tools to estimate withholding and projected taxes. Follow the quick steps below to get accurate results.

IRS Tax Withholding Estimator

Estimate your federal withholding and adjust your W-4 to avoid a big balance due or large refund.

Gather your latest paystub(s) and most recent tax return.
Enter filing status, dependents, and income details (wages, self-employment, other).
Add deductions/credits (standard or itemized, child tax credit, etc.).
Review recommended W-4 adjustments to fine-tune withholding.
Submit an updated W-4 to your employer if changes are needed.

Tip: Re-run after major changes (raise, new job, side income, new dependent).

Estimate Arizona state withholding to align your paycheck with expected state tax.

Have your current Arizona A-4 election and latest paystub handy.
Enter filing status, pay frequency, and Arizona wages.
Select an Arizona withholding percentage (A-4 options) or adjust based on the calculator’s suggestion.
Account for additional AZ income or deductions if prompted.
Update your A-4 with your employer to apply the new percentage.

Note: Arizona uses percentage-based withholding; small tweaks can reduce year-end surprises.

Use recent paystubs and last year’s return for accurate inputs.
Include all income sources (wages, self-employment, rentals, investments).
Factor in expected deductions/credits (standard vs. itemized, CTC, education credits).
Recalculate after life changes: marriage, new dependent, new job, big bonus, or sale of assets.

We’ll review your situation, project your taxes, and prepare tailored withholding or estimated payment recommendations.