Arizona Income Tax Calculator 2026
Estimate your 2026 Arizona state and federal income tax. Includes Arizona tax brackets, a worked dollar example, and filing tips.
Key Tax Facts: Arizona
- Flat 2.5% rate — one of the lowest flat rates in the U.S.
- Conforms closely to federal adjusted gross income as starting point
- Arizona does not tax Social Security benefits
- No city income tax, but transaction privilege tax applies to businesses
Arizona State Income Tax Overview
Arizona has a flat state income tax rate of 2.5% on all taxable income as of 2023, following the passage of Proposition 132. This replaced the previous graduated bracket system and makes Arizona one of the simpler states for income tax calculation. The standard deduction for Arizona residents is $13,850 for single filers and $27,700 for married couples filing jointly. Arizona also allows personal exemptions and a range of deductions and credits, including for dependents and charitable contributions made to qualifying organizations in the state.
Arizona Income Tax Rate (2026) projected
Arizona uses a flat income tax rate -- the same percentage applies to all taxable income regardless of how much you earn.
Source: Arizona Department of Revenue
What a Arizona Resident Actually Pays: A Worked Example
| Taxable Income | $65,000.00 |
| Arizona Flat Rate | 2.5% |
| Estimated State Tax | $1625.00 |
| Effective Rate | 2.5% |
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Frequently Asked Questions -- Arizona Income Tax
Does Arizona have a state income tax?
Yes. Arizona imposes a state income tax with a flat rate of 2.5%. This is separate from your federal income tax obligation.
What is the Arizona income tax rate for 2026?
Arizona uses a flat income tax rate of 2.5% on all taxable income, regardless of income level or filing status.
Do I have to file a Arizona state tax return?
Most full-year Arizona residents with income above the state filing threshold must file a state return. Check the Arizona Department of Revenue for current thresholds and requirements.
How accurate is this Arizona state tax estimate?
This is a planning estimate. The state result uses Arizona's published brackets but does not account for all state deductions, credits, exemptions, or local taxes. Verify with official Arizona tax forms or a qualified tax professional.
Does this calculator include federal income tax?
Yes. The results show your estimated Arizona state income tax and your federal income tax using 2026 federal brackets (projected until the IRS publishes official 2026 figures) -- your full combined picture in one place.
Where can I find official Arizona tax forms?
Official forms, instructions, and filing guidance are available at the Arizona Department of Revenue.
What is the sales tax rate in Arizona?
Arizona's combined state and average local sales tax rate is 8.37%. This is separate from income tax and applies to most retail purchases -- use our sales tax calculator to check a specific purchase.
When are Arizona 2026 state taxes due?
2026 taxes are generally filed in 2027. The Arizona filing deadline is April 15, 2027, the same as the federal deadline.
Understanding Your Arizona Tax Estimate
Your results combine two separate bills: federal tax owed to the IRS, and Arizona state tax owed to the Arizona Department of Revenue. The state return is filed separately from your federal Form 1040, with a state filing deadline of April 15. For the mechanics of how bracket math actually works -- why your effective rate is almost always lower than your top bracket -- see our marginal vs. effective tax rate guide.
Lowering Your Arizona Bill
Pre-tax retirement contributions reduce your federal and Arizona taxable income in the same move -- see our 401(k) contribution limits and HSA limits guides for the current caps. Beyond that, Arizona-specific credits and deductions that don't exist at the federal level are listed at the Arizona Department of Revenue -- worth checking, since these are easy to miss if you only look at federal guidance.
Combined Sales + Income Tax Picture
Arizona's combined state-plus-average-local sales tax rate is 8.37%. If you're self-employed, that's an added layer on top of income tax -- our self-employment tax calculator covers the SE-specific piece separately.
Disclaimer: Estimates for educational purposes only. State tax results are approximations based on published bracket data and do not account for all deductions, credits, exemptions, local taxes, or individual situations. Not tax, legal, or financial advice. Consult the Arizona Department of Revenue or a qualified tax professional for guidance specific to your situation.