How to Use This Calculator
Enter your income, filing status, and any deductions. The calculator computes your Arizona state income tax alongside your federal tax, showing exactly how much goes to each and what you take home.
The most useful thing to try? See how Arizona's flat 2.5% rate affects different income levels, then test how deductions and retirement contributions change your bottom line.
Here's what each field means:
Annual Income is your total earnings before any taxes. Include wages, freelance income, investment income, and any other sources.
Filing Status determines which deductions and exemptions apply. Arizona uses filing statuses similar to the federal system.
Arizona Income Tax: What You Need to Know
Arizona uses a flat income tax of 2.5% on all taxable income. Unlike states with progressive brackets, everyone pays the same percentage regardless of how much they earn. A teacher making $45,000 and a CEO making $500,000 both pay 2.5%.
Arizona switched to a flat 2.5% income tax rate in 2023, down from a graduated system that previously topped out at 4.5%. This makes Arizona one of the most tax-friendly states for higher earners. The flat rate applies to all taxable income regardless of how much you make — a teacher earning $45,000 and an executive earning $500,000 both pay the same 2.5% rate.
A Real Example
Let's say you're a single filer earning $75,000 in Arizona. After applying the standard deduction of $14,600, your approximate Arizona state income tax would be around $1,510, for an effective state tax rate of about 2.0%.
That's just the state portion. Federal income tax and FICA taxes are additional.
Deductions and Exemptions
Standard Deduction: $14,600 for single filers and $29,200 for married couples filing jointly.
Arizona generally conforms to federal standard deduction amounts. The state offers credits for charitable contributions to school tuition organizations (up to $1,459 for married couples) and for donations to qualifying foster care organizations.
Local Taxes
No local income taxes in Arizona.
Recent Changes
The flat 2.5% rate took full effect in 2023 after a phased reduction. Arizona voters approved Proposition 208 in 2020 to add a 3.5% surcharge on high earners, but the legislature effectively eliminated it through the flat tax reform.
How to Use This Calculator Strategically
Model a raise or job change. With a flat tax, the math is simpler — every additional dollar is taxed at 2.5%. But deductions and credits can still shift your effective rate.
Compare filing statuses. Even with a flat rate, different filing statuses unlock different deduction amounts that can affect your bottom line.
Plan retirement contributions. See how 401(k) or IRA contributions reduce your Arizona taxable income and lower your state tax bill.
Evaluate a move. Compare Arizona's flat 2.5% rate to other states. Depending on your income level, a flat tax state might save you money — or cost you more — compared to a progressive system.
References
- Arizona Department of Revenue. (2025). Individual Income Tax Information.
This calculator is for educational purposes only and does not constitute tax or financial advice. Tax rates and rules change regularly. Consult a qualified tax professional for guidance specific to your situation.