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Everyday money · AZ

Arizona Income Tax Calculator

Estimate your 2026 combined federal and Arizona income tax — Arizona adds a flat 2.5% state income tax.

InputsTY-2026
$
$
$
Federal + state tax15.3% effective
$15,276/yr
10% on $12,400$1,240
12% on $38,000$4,560
22% on $33,500$7,370
federal tax subtotal$13,170
AZ state tax$2,106
taxable income
$83,900
marginal rate
22.0%
after tax
$84,724

A single filer earning Arizona's median household income of $84,700 owes about $1,724 in Arizona state income tax — an effective state rate of 2.04%. That is state tax only, on top of federal income tax and FICA.

Based on 2025 Arizona rules and 2026 federal rules, with the standard deduction and no other adjustments. Median income is the 2024 Census figure.

Income tax in Arizona

Arizona taxes all income at a flat 2.5% for tax year 2025 — the lowest flat income tax rate in the country, in place since 2023. Its standard deduction mirrors the federal amounts ($15,750 single / $31,500 married filing jointly), and instead of personal exemptions the state offers dependent tax credits.

Arizona income tax structure (2025)

Arizona taxes income at a flat 2.5% after a standard deduction of $15,750 (single). Every taxable dollar is taxed at the same rate, so your marginal and effective state rates converge as income rises.

Common questions

What is Arizona's income tax rate?
Arizona taxes income at a flat 2.5% for tax year 2025 — one rate at every income level, with no brackets — applied after a $15,750 standard deduction ($31,500 joint).
What is the tax bill on $84,700 in Arizona?
A single filer on Arizona's $84,700 median household income (2024) owes about $1,724 to Arizona and $9,804 to the IRS — roughly $11,528 of income tax in total, or 13.6% of gross income.
How much income is exempt from Arizona tax?
The standard deduction shields the first $15,750 of income for a single filer and $31,500 on a joint return, so earnings below that owe no Arizona income tax. Every dollar above it is taxed at the same 2.5%, saving a single filer about $394 versus no deduction at all.

How we calculate this

Federal brackets per our income-tax methodology, plus Arizona's 2025 state tax (2026 state tables pending). Estimates only — not tax advice.

Tax Foundation: 2025 state income tax rates →Arizona Dept. of Revenue →

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Estimates for general informational purposes only; not tax advice. Arizona figures are simplified (credits, local taxes, and AGI adjustments vary) and should be verified with the state Department of Revenue. Arizona's flat 2.5% is applied with the $15,750 standard deduction for a single filer — not itemized deductions or any Arizona tax credit. It also excludes any local, county, or school-district tax your municipality may add.