Arizona Tax Calculator
Arizona applies a single flat rate to all taxable income, having moved away from a tiered bracket system in 2023. That simplification means your marginal and effective state rate are identical no matter your income level. Arizona also conforms closely to federal rules for defining taxable income, which keeps the calculation straightforward. Enter your income above to see your exact Arizona state tax instantly.
State Tax
$2,500Effective Rate
2.50%Marginal Rate
2.50%| Rate | Bracket Range | Tax |
|---|---|---|
| 2.50% | $0+ | $2,500 |
| Total | $2,500 | |
How Arizona income tax works
- Arizona multiplies your taxable income by one flat rate — there are no brackets to work through.
- The state's definition of taxable income closely follows the federal return, simplifying the calculation.
- The calculator shows your total state tax and confirms that your marginal and effective rates match.
Need the exact bracket thresholds instead of an estimate? See the Arizona tax brackets for 2026 .
Estimate your Arizona property tax by county, compare every state at the state tax brackets hub , or see the full tax-by-state directory .
Frequently asked questions
How is Arizona income tax calculated?
Arizona applies one flat rate to your entire taxable income — there's no bracket-by-bracket layering. The calculator multiplies your entered income by that rate to show your exact state tax.
Does Arizona tax Social Security benefits?
No. Arizona excludes Social Security benefits from state taxable income.
Why did Arizona move to a flat tax?
Arizona replaced its tiered bracket system with a single flat rate in 2023, simplifying calculations for residents. Since then, every taxpayer pays the same percentage regardless of income level.
How much state tax will I pay in Arizona?
Because Arizona uses a flat rate, your state tax is simply that rate applied to your taxable income. Enter your figures above for an instant, exact total.
Sources
Related insights
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