Arizona has a state income tax that applies to residents and nonresidents earning income in the state

Yes. Arizona taxes income at the state level. If you live in Arizona or earn money there, you will owe state income tax on most types of income — wages, self-employment earnings, investment gains, retirement distributions, and others. The tax is separate from federal income tax, meaning you file both an Arizona return and a federal return.

Arizona's tax rates range from 2.55% to 4.5% depending on your income level and filing status. The state uses a progressive system, so higher earners pay a higher percentage. Unlike some states, Arizona does not have a flat tax or a single rate that applies to everyone.

If you are a nonresident who worked in Arizona during the year, you may owe Arizona tax on income earned within the state even if you do not live there. The rules depend on how many days you worked in Arizona and whether you had a permanent home elsewhere.

Key Takeaways

  • Arizona residents pay state income tax on wages, self-employment income, investment gains, and most other income sources at rates between 2.55% and 4.5%.
  • Arizona uses a progressive tax system with multiple tax brackets, so your rate depends on your total income and filing status.
  • Nonresidents who earned income in Arizona may owe state tax on that Arizona-source income regardless of where they live.
  • You file an Arizona return separate from your federal return, and the state has its own filing important date and payment rules.

How Arizona's tax brackets work

Arizona's income tax brackets change each year because they are adjusted for inflation. For the 2024 tax year, the state has five tax brackets for single filers and five for married filing jointly. The lowest bracket starts at 2.55% and the highest reaches 4.5%.

Your bracket depends on your total taxable income. If you earn $30,000 as a single filer, you fall into a lower bracket than someone earning $100,000. You do not pay the top rate on all your income — only the portion that falls within each bracket is taxed at that rate. This is how a progressive system works.

Arizona also allows a standard deduction, which reduces your taxable income before you calculate tax owed. The standard deduction amount varies by filing status and age. For 2024, the standard deduction for a single filer under 65 is $14,100, but this figure changes annually. You can also itemize deductions instead if that results in a larger deduction.

Types of income Arizona taxes

Arizona taxes most forms of income the same way the federal government does. This includes W-2 wages from an employer, self-employment income, capital gains from selling investments, dividends, interest, rental income, and distributions from retirement accounts like IRAs and 401(k)s.

Some income is exempt from Arizona tax. Social Security benefits are not taxed by Arizona. Certain military pensions and federal employee pensions receive preferential treatment under Arizona law. If you receive income from sources outside the United States, Arizona generally taxes it the same way federal law does, though you may be able to claim a foreign tax credit.

If you are retired and receiving distributions from a traditional IRA or 401(k), those distributions are taxable income in Arizona. Roth IRA distributions are not taxable. Pension income is taxable unless it qualifies for one of Arizona's specific exemptions, which are limited.

Nonresident tax obligations in Arizona

If you do not live in Arizona but earned income there, you may owe Arizona tax on that income. The state taxes nonresidents on income earned within Arizona, even if you spent most of the year elsewhere. This applies to people who worked in Arizona temporarily, remote workers who happened to be in the state, and business owners with Arizona operations.

Arizona considers you a resident for tax purposes if you were physically present in the state for more than 183 days during the tax year, or if you maintained a permanent home in Arizona and were present for at least 60 days. If neither condition is met, you are a nonresident. Nonresidents file Form 140-NR instead of the standard Form 140.

If you are a nonresident, you report only the income you earned in Arizona on your state return. Income from other states or from sources outside Arizona does not go on your Arizona return. You will also file a return in your home state for income earned there.

Filing important date and payment methods

Arizona income tax returns are due on the same date as federal returns — April 15 of the following year, or the next business day if April 15 falls on a weekend or holiday. If you file for a federal extension, you automatically receive an extension for Arizona as well, moving your important date to October 15.

You can file your Arizona return by mail or electronically through the Arizona Department of Revenue website. E-filing is faster and reduces the chance of errors. If you owe tax, you can pay online, by mail, or through an electronic funds withdrawal from your bank account.

If you expect to owe more than a small amount of tax and did not have enough withheld from your paychecks during the year, you may want to make estimated tax payments to Arizona. Estimated payments are due quarterly — typically in April, June, September, and January. Missing a quarterly important date can result in penalties and interest.

Tax credits and deductions available in Arizona

Arizona offers several tax credits that can reduce the amount of tax you owe. The Earned Income Tax Credit (EITC) is available to lower-income workers and is based on federal EITC rules. Arizona also offers credits for dependent care expenses, education expenses, and charitable contributions in some cases.

The state allows a standard deduction or itemized deductions, similar to federal tax. You choose whichever gives you the larger deduction. Arizona also allows deductions for contributions to certain retirement accounts, though the rules depend on whether you have access to an employer plan.

If you are over 65, Arizona allows an additional standard deduction amount. If you are blind, you may also may have access to for an additional deduction. These extra deductions are designed to reduce the tax burden on older and disabled residents.

How Arizona taxes compare to neighboring states

Arizona's top tax rate of 4.5% is lower than California's top rate of 13.3% but higher than Texas, which has no state income tax. Nevada also has no state income tax. New Mexico's top rate is 5.9%. If you are considering moving between states, the difference in income tax can be significant over time, especially at higher income levels.

Some states tax retirement income differently than Arizona does. For example, some states exempt all pension income or all Social Security income. Arizona's approach is more limited — it does not tax Social Security but does tax most pensions and retirement account distributions. If you are retired or nearing retirement, comparing state tax treatment of your specific income sources can help you plan.

Arizona also has property tax, sales tax, and other taxes that vary by location. The total tax burden depends on your income level, the type of income you receive, and where in Arizona you live. A financial advisor or tax professional can help you understand the full picture for your situation.

Frequently Asked Questions

Do I have to file an Arizona return if I only lived there part of the year?

If you earned income in Arizona during any part of the year, you generally must file an Arizona return for that year. If you were a resident for part of the year and a nonresident for part of the year, you file as a part-year resident and report income based on your status during each period. The Arizona Department of Revenue website has worksheets to help you determine your residency status.

Is Social Security taxed in Arizona?

No. Arizona does not tax Social Security benefits. If Social Security is your only income, you do not owe Arizona tax. If you have other income in addition to Social Security, you report the other income but not the Social Security portion.

What happens if I do not file an Arizona return when I owe tax?

The Arizona Department of Revenue can assess penalties and interest on unpaid tax. Penalties typically start at 5% of the unpaid tax and can increase if the return is significantly late. Interest accrues monthly. If you owe a substantial amount, the state can place a lien on your property or garnish wages. Filing late is better than not filing at all.

Can I claim the same deductions on my Arizona return that I claim on my federal return?

Arizona generally follows federal tax law, so most deductions you claim on your federal return can also be claimed on your Arizona return. However, Arizona has made some changes to its tax code that differ from federal law. For example, Arizona allows a deduction for contributions to certain retirement accounts that federal law may not. Review Arizona's instructions or consult a tax professional if you are unsure whether a specific deduction applies to your state return.

Do I owe Arizona tax if I work remotely for a company outside Arizona?

If you live in Arizona and work remotely for an out-of-state company, you owe Arizona tax on your wages. Your employer may not withhold Arizona tax automatically, so you may need to make estimated payments or adjust your federal withholding to cover the state tax you will owe. If you live outside Arizona but work remotely for an Arizona company, you generally do not owe Arizona tax unless you also worked in the state in person.