2026 Arizona Tax Calculator: 2.50% Flat Rate & Paycheck
Calculate your net take-home pay in the Grand Canyon State. Built with Arizona Department of Revenue flat 2.50% tax rules, federal standard deduction matching, dependent tax credits, and 2026 federal withholdings.
Interactive Arizona Paycheck Calculator
How Arizona State Income Taxes Work in 2026
Arizona operates one of the lowest and simplest income tax structures in the United States following comprehensive tax reform legislation:
1. Flat 2.50% Personal Income Tax Rate
Under Arizona Senate Bill 1828, Arizona phased out its prior graduated bracket system (which reached up to 4.50%) and implemented a single statutory flat rate of 2.50%. This flat rate applies uniformly to all taxable individual income, regardless of filing status or earnings level.
2. Federal Standard Deduction Alignment
Arizona tax law automatically conforms to federal standard deduction thresholds. For the 2026 tax year, the standard deductions are:
- Single Filers: $15,000
- Married Filing Jointly: $30,000
- Head of Household: $22,500
- Married Filing Separately: $15,000
3. Dependent Tax Credits
Arizona provides a direct tax credit rather than personal exemptions for dependents. Taxpayers receive a $100 tax credit for each qualifying child under age 17, and a $25 credit for dependents aged 17 and older. Because this is a direct credit against tax liability, it reduces your Arizona state tax dollar-for-dollar.
Frequently Asked Questions: Arizona Tax Calculator
Does Arizona tax Social Security benefits?
No. Arizona fully exempts Social Security benefits from state income taxation. Military retirement pay is also 100% exempt from Arizona personal income tax.
How does Arizona withhold state tax from my paycheck?
Arizona employees complete Form A-4 (Employee's Arizona Withholding Percentage Election) to select a withholding percentage ranging from 0.8% to 5.0% of their gross compensation. The statutory default rate is 2.5%.
Does Arizona tax capital gains at a preferential rate?
Arizona taxes capital gains at the general flat rate of 2.50%. However, Arizona allows a 25% subtraction for net long-term capital gains on assets acquired after December 31, 2011, effectively reducing the capital gains rate to 1.875%.