Arizona taxes income at rates between 2.55% and 4.5%, depending on your filing status and income level

Arizona has a progressive income tax system, meaning the rate you pay increases as your income rises. The state does not have a flat tax — instead, your income is divided into brackets, and each bracket is taxed at its own rate. For the 2024 tax year, Arizona residents pay between 2.55% on the lowest bracket and 4.5% on the highest.

The exact amount you owe depends on three things: your total income, your filing status (single, married filing jointly, married filing separately, or head of household), and whether you claim dependents or other deductions. Arizona also allows you to subtract the federal income tax you paid from your state taxable income, which lowers what you owe to Arizona.

Key Takeaways

  • Arizona's top income tax rate is 4.5%, but most earners pay less because the tax is progressive and brackets start at 2.55%.
  • Your filing status and income level determine which bracket applies to you, and Arizona lets you deduct federal taxes paid.
  • Arizona does not tax Social Security benefits, but it does tax retirement account withdrawals and investment income above certain thresholds.
  • You file Arizona taxes on Form 140 (single or married filing separately) or Form 140-PZ (married filing jointly), due by April 15 unless you request an extension.
  • If you work in another state or live near the border, you may owe taxes to both Arizona and that state, though Arizona has reciprocal agreements with some neighbors.

The five Arizona tax brackets for 2024

Arizona divides income into five brackets. Each bracket has its own rate, and you only pay that rate on income that falls within that bracket — not on your entire income. The brackets change slightly each year because Arizona adjusts them for inflation.

For single filers in 2024, the brackets are: 2.55% on income up to $31,899; 3.34% from $31,900 to $63,798; 4.17% from $63,799 to $318,990; and 4.5% on income over $318,990. For married couples filing jointly, the brackets are roughly double those amounts. Married filing separately and head of household have their own bracket ranges.

The federal tax deduction is the most significant break Arizona offers. You can subtract the federal income tax you actually paid from your Arizona taxable income before calculating what you owe the state. This deduction is not available in most other states and can lower your Arizona bill by several hundred dollars depending on your income.

What income Arizona taxes and what it does not

Arizona taxes wages, salaries, self-employment income, interest, dividends, and capital gains. It also taxes distributions from retirement accounts like 401(k)s and traditional IRAs, though not from Roth IRAs (those withdrawals are tax-free). Rental income and business income are taxable as well.

Arizona does not tax Social Security benefits, which is a significant advantage for retirees. The state also does not tax military retirement pay for active-duty service members, though it does tax civilian government pensions. Long-term capital gains are taxed at the same rate as ordinary income in Arizona, unlike the federal system.

If you receive income from sources outside Arizona — for example, you work remotely for a company in California — you may owe taxes to both states. Arizona taxes residents on all income regardless of where it is earned, and some other states do the same. You can claim a credit for taxes paid to the other state to avoid double taxation, but you have to file in both places.

How to calculate what you owe

Start with your total income from all sources. Subtract the standard deduction for your filing status (for 2024, it is $14,600 for single filers and $29,200 for married filing jointly). Then subtract the federal income tax you paid during the year. The result is your Arizona taxable income.

Find your taxable income in the bracket table for your filing status and explore that rate. If you are single and your taxable income is $50,000, you would owe 2.55% on the first $31,899 ($813.35) and 3.34% on the remaining $18,101 ($604.18), for a total of $1,417.53 before any credits. Arizona offers credits for dependent children, education expenses, and other situations that can reduce this amount further.

The Arizona Department of Revenue publishes tax tables each year that do the bracket math for you — you can look up your income and filing status and read off what you owe. Most people use tax software or a preparer instead, which handles the calculation automatically.

Filing important date and where to file

Arizona income tax returns are due on April 15 of the year following the tax year, the same date as federal returns. You file using Form 140 (if you are single or married filing separately) or Form 140-PZ (if you are married filing jointly). Both forms are available on the Arizona Department of Revenue website.

You can file by mail, electronically through the department's website, or through a tax preparer or software. E-filing is faster and the department processes it more quickly. If you cannot file by April 15, you can request an automatic six-month extension, which moves your important date to October 15, though any taxes owed are still due on April 15 (you just pay a penalty if you miss that date).

Arizona residents who work in another state may need to file in both places. Arizona has reciprocal tax agreements with California, Indiana, Oregon, and Virginia, which means you may only owe taxes to your state of residence, not both. Check the Arizona Department of Revenue website to see if your situation qualifies.

Estimated taxes if you are self-employed or have other income

If you are self-employed, own a business, or receive income that is not subject to withholding, you may need to pay estimated taxes to Arizona four times a year. Estimated taxes are quarterly payments made on April 15, June 15, September 15, and January 15 of the following year.

You calculate estimated taxes by projecting your annual income and subtracting deductions, then dividing by four. If you underpay, you owe a penalty when you file your annual return. If you overpay, you receive a refund. Many self-employed people use tax software or a preparer to calculate these amounts because the math is complex and mistakes are common.

Deductions and credits that lower your Arizona bill

Beyond the standard deduction and the federal tax deduction, Arizona offers several credits that reduce what you owe. The dependent exemption credit is $2,300 per dependent for 2024. The education credit allows you to claim up to $414 per dependent for education expenses. There is also a credit for taxes paid to other states if you work across state lines.

Arizona does not allow itemized deductions the way the federal system does — you take the standard deduction or nothing. However, you can deduct contributions to a traditional IRA (up to certain income limits), which reduces your taxable income before you calculate what you owe.

Frequently Asked Questions

Do I have to file an Arizona return if I live in Arizona but work in another state?

Yes, Arizona taxes residents on all income regardless of where it is earned. You will file an Arizona return and likely a return in the other state as well. Arizona has reciprocal agreements with a few states (California, Indiana, Oregon, Virginia) that may let you file only in your state of residence, so check whether your situation qualifies.

What happens if I do not pay my Arizona taxes on time?

The Arizona Department of Revenue charges a penalty of 5% of the unpaid tax if you file late, plus interest on the unpaid amount. The interest rate changes quarterly and is based on the federal rate. If you cannot pay by April 15, file your return anyway and pay what you can — filing on time stops the failure-to-file penalty, and you only owe the failure-to-pay penalty on the remaining balance.

Can I claim my federal refund as a deduction on my Arizona return?

No. You deduct the federal income tax you actually paid during the year (through withholding or estimated payments), not any refund you received. If you overpaid federal taxes and received a refund, that refund does not reduce your Arizona tax bill.

Are retirement withdrawals from an IRA taxed in Arizona?

Withdrawals from a traditional IRA are taxed as ordinary income in Arizona. Withdrawals from a Roth IRA are not taxed. Social Security is not taxed, but military retirement pay is taxed unless it is for active-duty service. Pension income from government employment may or may not be taxed depending on when you started work.

What if I moved to Arizona partway through the year?

You are an Arizona resident for tax purposes if you lived in the state for more than half the tax year. If you moved in July, you are a resident for that year and file an Arizona return. If you moved in November, you are not a resident and do not file an Arizona return — you file only in your previous state. The Arizona Department of Revenue can clarify your status if you are unsure.