Arizona Tax Authority
Official Arizona state tax information, forms, and filing resources.
Source: Arizona Department of RevenuewebpageApplies to: 2025
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Arizona Income Tax
Arizona uses a flat income tax rate applied to all taxable income. Combined with federal tax, this determines your total income tax burden.
Income Tax Brackets
The U.S. federal income tax uses seven progressive brackets with rates from 10% to 37%. Each bracket rate only applies to the income within that range — not to your entire income.
Last reviewed: 2027-01-15 • State: AZ