Arizona Tax Calculator
The Arizona (AZ) Tax Calculator is updated for the 2026/27 tax year. It estimates Arizona state income tax, federal tax, and FICA/Medicare deductions, helping you calculate take-home pay and refund estimates. Arizona applies a flat income tax rate, making your results simple and predictable compared to progressive systems.
The calculator accounts for both state-specific credits and standard federal adjustments, offering an accurate forecast of your total tax liability and take-home income.
Quick Access Tools
Quick Arizona Tax Calculator
Enter income and filing status, then click Calculate to get instant results. Use the advanced tabs to include itemized deductions, dependents, 401(k) contributions, and state-specific tax credits like the Arizona Family Tax Credit or School Tuition Organization (STO) contributions.
Input key: F Used in Federal tax calculations S Used in State tax calculations
How to Calculate Income Tax in Arizona for 2026/27
- Enter your gross annual income and any pre-tax deductions.
- Select your filing status (Single, Married, Head of Household, etc.).
- Click Calculate to estimate state, federal, and FICA liabilities, along with your net take-home pay.
Advanced Options
- Model Arizona-specific deductions and credits such as charitable or school contributions.
- Toggle itemized vs. standard deductions to optimize your return.
- Add IRA/401(k) contributions and dependents for precise calculations.
- Include federal and state withholdings to forecast refund or balance due.
Related Calculators
Common Arizona Forms & Schedules
Explore the most commonly used Arizona (AZ) Department of Revenue income tax forms, including core returns such as Form 140 (Resident Return), Form 140NR (Nonresident Return), Form 140PY (Part-Year Resident Return), and simplified options like Form 140A and Form 140EZ. Supporting schedules—such as Schedule A for deductions and the full range of Arizona credit forms—are also available to help taxpayers calculate exemptions, credits, and adjustments accurately.
- Arizona Form AZ 131 Arizona Form 131 – Claim for Refund on Behalf of Deceased Taxpayer
- Arizona Form AZ 140 Arizona Form 140 – Resident Personal Income Tax Return
- Arizona Form AZ 140 Schedule A Arizona Form 140 Schedule A – Itemized Deduction Adjustments
- Arizona Form AZ 140A Arizona Form 140A – Resident Personal Income Tax (Short Form)
- Arizona Form AZ 140EZ Arizona Form 140EZ – Resident Personal Income Tax (EZ Form)
- Arizona Form AZ 140NR Arizona Form 140NR – Nonresident Personal Income Tax Return
Additional Resources
Frequently Asked Questions
Quick answers for Arizona filers: learn about flat income tax rates, popular deductions, credits, and filing forms.
How does the Arizona tax rate apply on Form 140EZ?
Form 140EZ uses the same statewide flat tax rate that applies to all Arizona resident income tax returns. The rate is applied to taxable income after subtracting the standard deduction. Because the EZ form does not allow deductions, adjustments, or specialized exemptions, the calculation is straightforward and consistent across all taxpayers who qualify. While simplified, taxpayers may still benefit from comparing outcomes with Form 140A or Form 140 if their income or credit situations are more nuanced.
How are medical deductions handled for part-year residents on Schedule A(PY)?
Medical deductions follow the federal rule requiring expenses to exceed 7.5% of federal AGI before any amount becomes deductible. Because AGI is based on the full tax year—even for part-year residents—this threshold affects how much of the medical deduction flows into Arizona’s calculation. Once the federal deduction amount is entered on the schedule, Arizona applies its own rules, makes any required adjustments, and only then prorates the remaining allowable deduction by the part-year ratio.
Can I claim Form 323 alongside other Arizona tax credits?
Yes. Arizona allows taxpayers to claim multiple credits in the same year—including QCO credits (Form 321), QFCO credits (Form 348), private school tuition credits (Form 322), and switcher credits. Each credit has independent limits. Many taxpayers stack these credits to maximize their tax benefit while supporting different educational and charitable institutions across the state.
Are employer unemployment or state payroll taxes shown?
No—those are employer liabilities; your take-home shows only employee withholdings.
How does Arizona define “household income” for purposes of Form 140ET?
Household income includes all income received by every household member—wages, pensions, Social Security benefits, interest, dividends and any other taxable or nontaxable amounts required under Arizona rules. Unlike the federal return, Arizona applies excise-credit eligibility based on combined income rather than just the filer’s income. This prevents taxpayers from receiving relief credits when household earnings exceed eligibility limits. Taxpayers must be careful to include all income amounts accurately, as Arizona may cross-check against reported federal data or other state-maintained records.
Important Notes
All calculations are estimates for guidance only. Always review your return and consider professional advice when submitting official filings.