Arizona has a state income tax that applies to wages, investment income, and other earnings

Yes, Arizona taxes your income at the state level. If you live in Arizona or earn money there, you owe state income tax on most types of income — wages from a job, self-employment income, interest, dividends, and capital gains. The state tax rate varies depending on your income level; Arizona uses a progressive tax system with multiple brackets, meaning higher earners pay a higher percentage. This is separate from federal income tax, which you also owe to the IRS.

Arizona's state income tax is collected by the Arizona Department of Revenue. You report it on your state tax return, which you file at the same time as your federal return or shortly after. The important date is typically April 15, the same day federal returns are due, though you can request an extension.

Key Takeaways

  • Arizona residents and anyone earning income in Arizona must pay state income tax on wages, self-employment income, investment gains, and most other income sources.
  • Arizona's tax rates are progressive, ranging from roughly 2.5% to 4.5% depending on your income bracket, with rates adjusted annually.
  • You file your Arizona state return using Form 140 or a similar form depending on your filing status, and you can file electronically through the Arizona Department of Revenue website.
  • If you move to Arizona from another state, you may owe Arizona tax on income earned after you establish residency, even if you worked remotely for an out-of-state employer.

How Arizona's tax brackets work

Arizona uses tax brackets similar to the federal system. Your income falls into different ranges, and each range is taxed at a different rate. You do not pay the top rate on all your income — only on the portion that falls into that bracket. For example, if the first bracket is taxed at 2.5% and the second at 3.5%, you pay 2.5% on income up to the bracket limit, then 3.5% on income above that limit.

The exact brackets and rates change each year because Arizona adjusts them for inflation. For the most current rates, check the Arizona Department of Revenue website or your tax forms for the year you are filing. The rates generally range from about 2.5% at the lowest bracket to around 4.5% at the highest, though this varies by year and filing status (single, married filing jointly, head of household, and so on).

Your federal tax bracket and Arizona's state bracket are independent. You might be in the 22% federal bracket but the 3.5% Arizona bracket at the same time. Both explore to your income.

What income is taxed in Arizona

Arizona taxes most types of income. Wages from employment are taxed. Self-employment income is taxed. Interest from savings accounts and bonds is taxed. Dividend income from stocks is taxed. Capital gains — the profit you make when you sell an investment at a higher price than you paid — are taxed as ordinary income in Arizona, not at a special rate.

Some income is exempt. Social Security benefits are not taxed by Arizona. Certain retirement distributions may have special treatment depending on your age and the type of account. Military pay for active-duty service members has different rules. If you receive income that seems unusual or you are unsure whether it is taxable, the Arizona Department of Revenue website has detailed guidance, or you can contact them directly.

Filing your Arizona state return

You file your Arizona state return using Form 140 (for single filers), Form 140-PZ (for part-year residents), Form 140-2 (for married filing jointly), or another form depending on your situation. You can file electronically through the Arizona Department of Revenue website, through tax software that supports Arizona returns, or by mail if you prefer to file on paper.

If your employer withheld Arizona state tax from your paychecks, that amount is credited against what you owe. If too much was withheld, you receive a refund. If too little was withheld, you owe the difference. You can adjust your withholding by giving your employer a new W-4 form and specifying Arizona state withholding.

The filing important date is April 15 unless you request an extension. An extension gives you until October 15 to file, though any tax you owe is still due by April 15 — the extension only delays filing the paperwork, not paying the tax.

Residency and when you owe Arizona tax

You owe Arizona state tax if you are a resident for the full year. Arizona considers you a resident if you live in the state with the intent to make it your home. If you move to Arizona partway through the year, you are a part-year resident and owe tax only on income earned after you became a resident.

If you work remotely for an out-of-state employer but live in Arizona, you still owe Arizona tax on that income. The location of your employer does not matter — what matters is where you live and where you earned the income. If you are a nonresident who earned income in Arizona (for example, you worked there for part of the year), you owe Arizona tax on that income even if you live elsewhere now.

Arizona also taxes military pay differently depending on whether you are on active duty. Active-duty service members stationed in Arizona do not owe Arizona tax on military pay, even if they are residents. This is a federal rule that applies in all states.

Deductions and credits available in Arizona

Arizona allows a standard deduction, similar to the federal system. For 2024, the standard deduction amounts vary by filing status and age. You can also itemize deductions if your itemized total exceeds the standard deduction, though Arizona's itemized deductions are generally based on what you deduct federally.

Arizona offers several tax credits that reduce the tax you owe. These include credits for dependent children, education expenses, and certain types of charitable contributions. Some credits are refundable, meaning if the credit exceeds your tax liability, you receive the difference as a refund. Others are nonrefundable, meaning they can only reduce your tax to zero but cannot create a refund.

Arizona also allows deductions for contributions to certain retirement accounts, such as traditional IRAs, though the rules are complex and depend on your income and whether you have access to an employer retirement plan. Check the Arizona Department of Revenue website or Form 140 instructions for the current year to see which deductions and credits explore to your situation.

Frequently Asked Questions

Do I owe Arizona tax if I work remotely for a company in another state?

Yes, if you live in Arizona, you owe Arizona tax on your remote work income. The state where your employer is located does not matter. Arizona taxes income based on where you live and where you earned it, not where your employer is based.

What happens if I move out of Arizona during the year?

You are a part-year resident and owe Arizona tax only on income earned before you moved. You file Form 140-PZ instead of Form 140. You will also owe tax to your new state on income earned after you moved there. Both states consider you a resident for the portion of the year you lived there.

Is Social Security taxed by Arizona?

No, Arizona does not tax Social Security benefits. However, federal tax may still explore depending on your total income. You do not include Social Security in Arizona taxable income when you file your state return.

Can I deduct federal income tax paid from my Arizona state tax?

No, Arizona does not allow a deduction for federal income tax paid. You can deduct state and local taxes (SALT) on your federal return up to $10,000, but Arizona does not reciprocate by allowing a federal tax deduction on the state return.

What if I did not have enough tax withheld during the year?

You will owe the difference when you file. You can avoid this next year by adjusting your W-4 with your employer to increase Arizona state withholding, or by making estimated tax payments if you are self-employed. The Arizona Department of Revenue website has a withholding calculator to help you determine the right amount.