Arizona Income Tax Rate 2017 - 2018

Arizona state income tax rate table for the 2017 - 2018 filing season has five income tax brackets with AZ tax rates of 2.59%, 2.88%, 3.36%, 4.24% and 4.54% for Single, Married Filing Jointly, Married Filing Separately, and Head of Household statuses. The Arizona tax rate is unchanged from last year, however, the income tax brackets increased due to the annual inflation adjustment.

Arizona income tax rate and tax brackets shown in the table below are based on income earned between January 1, 2017 through December 31, 2017. Outlook for the 2018 Arizona income tax rate is to remain unchanged with income tax brackets increasing due to an annual inflation adjustment.

Single Tax BracketsTax Rate 2017
Source: 2017 Form AZ-140 Instructions Booklet, 2017 Arizona Tax Rate Schedule, published by the Arizona Department of Revenue.
$0to$10,3462.59%
$10,347to$25,8612.88%
$25,862to$51,7213.36%
$51,722to$155,1594.24%
$155,160to4.54%
Married Filing Jointly BracketsTax Rate 2017
Source: 2017 Form AZ-140 Instructions Booklet, 2017 Arizona Tax Rate Schedule, published by the Arizona Department of Revenue.
$0to$20,6902.59%
$20,691to$51,7212.88%
$51,722to$103,4403.36%
$103,441to$310,3174.24%
$310,318to4.54%
Married Filing Separately BracketsTax Rate 2017
Source: 2017 Form AZ-140 Instructions Booklet, 2017 Arizona Tax Rate Schedule, published by the Arizona Department of Revenue.
$0to$10,3462.59%
$10,347to$25,8612.88%
$25,862to$51,7213.36%
$51,722to$155,1594.24%
$155,160to4.54%
Head of Household BracketsTax Rate 2017
Source: 2017 Form AZ-140 Instructions Booklet, 2017 Arizona Tax Rate Schedule, published by the Arizona Department of Revenue.
$0to$20,6902.59%
$20,691to$51,7212.88%
$51,722to$103,4403.36%
$103,441to$310,3174.24%
$310,318to4.54%

Please reference the Arizona tax forms and instructions booklet published by the Arizona Department of Revenue to determine if you owe state income tax or are due a state income tax refund. Arizona income tax forms are generally published at the end of each calendar year, which will include any last minute 2017 - 2018 legislative changes to the AZ tax rate or tax brackets. The Arizona income tax rate tables and tax brackets shown on this web page are for illustration purposes only.

Arizona Tax Brackets 2017 - 2018

Looking at the tax rate and tax brackets shown in the tables above for Arizona, we can see that Arizona collects individual income taxes differently for Single versus Married filing statuses, for example. We can also see the progressive nature of Arizona state income tax rates from the lowest AZ tax rate bracket of 2.59% to the highest AZ tax rate bracket of 4.54%.

For single taxpayers living and working in the state of Arizona:

  • Tax rate of 2.59% on the first $10,346 of taxable income.
  • Tax rate of 2.88% on taxable income between $10,347 and $25,861.
  • Tax rate of 3.36% on taxable income between $25,862 and $51,721.
  • Tax rate of 4.24% on taxable income between $51,722 and $155,159.
  • Tax rate of 4.54% on taxable income over $155,159.

For married taxpayers living and working in the state of Arizona:

  • Tax rate of 2.59% on the first $20,690 of taxable income.
  • Tax rate of 2.88% on taxable income between $20,691 and $51,721.
  • Tax rate of 3.36% on taxable income between $51,722 and $103,440.
  • Tax rate of 4.24% on taxable income between $103,441 and $310,317.
  • Tax rate of 4.54% on taxable income over $310,317.

For the Single, Married Filing Jointly, Married Filing Separately, and Head of Household filing statuses, the AZ tax rates and the number of tax brackets remain the same. Notice, however, the Arizona income tax brackets for Married Filing Jointly and Head of Household increase from $10,179 to $20,357 at 2.59%, and increase from $152,668 to $305,336 at 4.54% the highest tax bracket. Married Filing Separately income tax brackets are one half that of the Married Filing Jointly income tax brackets in the state of Arizona.

Last updated: January 8, 2018