What is the Arizona state income tax rate?

Arizona uses a flat 2.5% rate, one of the lowest state income taxes in the country. It replaced Arizona's old graduated brackets in 2023, so every filer now pays the same 2.5%.

What is the Arizona standard deduction?

Arizona's standard deduction matches the federal amounts. For 2024 that is $14,600 single, $29,200 married filing jointly, and $21,900 head of household. It is subtracted before the 2.5% rate applies.

When did Arizona switch to a flat tax?

Arizona accelerated to a single 2.5% flat rate for tax year 2023, ahead of the original phase-in schedule, because state revenue targets were met early. The prior system had graduated brackets up to 4.5%.

Does Arizona have local income taxes?

No. Arizona cities and counties do not levy a separate income tax, so the 2.5% state rate is the only income tax on your wages.

Is my income data sent anywhere?

No. The calculation runs entirely in your browser. Nothing you enter is uploaded or stored.

Arizona State Income Tax Calculator

Arizona taxes individual income at a flat 2.5% — one of the lowest state rates in the US — after a standard deduction that matches the federal amounts. This free calculator applies both.

How it works

The Arizona tax formula is:

Start from your Arizona income (federal AGI is a close approximation for most wage earners).
Subtract the standard deduction for your filing status — Arizona mirrors the federal figures: $14,600 single, $29,200 married filing jointly, $21,900 head of household (2024).
Apply the flat 2.5% rate to the remaining taxable income.

Arizona accelerated to this flat rate in 2023, replacing brackets that previously topped out at 4.5%.

Example

A single filer with $60,000 of income subtracts the $14,600 standard deduction, leaving $45,400 taxable. 2.5% × $45,400 = $1,135 of Arizona state income tax, for an effective rate of about 1.89%.

Notes

This estimate covers Arizona state income tax only — not FICA, federal tax, or itemized deductions. Arizona has no local income tax. Because Arizona ties its deduction to the federal figure, those amounts adjust for inflation each year.