Wisconsin Income Tax Rate 2017 - 2018

Wisconsin state income tax rate table for the 2017 - 2018 filing season has four income tax brackets with WI tax rates of 3.9%, 5.74%, 6.27% and 7.65% for Single, Married Filing Jointly, Married Filing Separately, and Head of Household statuses. The Wisconsin tax rate decreased for the first and second income tax brackets. The prior year income tax rates of 4% and 5.84% are now 3.9% and 5.74% respectively. The second tax bracket for all filers has been broadened as well.

Wisconsin 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 Wisconsin income tax rate is to remain unchanged with even broader income tax brackets as described in the 2017 Wisconsin Budget Address Taxes Fact Sheet.

Single Tax BracketsTax Rate 2017
Source: 2017 Wisconsin Budget Address Taxes Fact Sheet, published by the State of Wisconsin.
$0to$11,2303.9%
$11,231to$28,0805.74%
$28,081to$247,3506.27%
$247,351to7.65%
Married Filing Jointly BracketsTax Rate 2017
Source: 2017 Wisconsin Budget Address Taxes Fact Sheet, published by the State of Wisconsin.
$0to$14,9803.9%
$14,981to$37,4505.74%
$37,451to$329,8106.27%
$329,811to7.65%
Married Filing Separately BracketsTax Rate 2017
Source: 2017 Wisconsin Budget Address Taxes Fact Sheet, published by the State of Wisconsin.
$0to$7,4903.9%
$7,491to$18,7205.74%
$18,721to$164,9006.27%
$164,901to7.65%
Head of Household BracketsTax Rate 2017
Source: 2017 Wisconsin Budget Address Taxes Fact Sheet, published by the State of Wisconsin.
$0to$11,2303.9%
$11,231to$28,0805.74%
$28,081to$247,3506.27%
$247,351to7.65%

Please reference the Wisconsin tax forms and instructions booklet published by the Wisconsin Department of Revenue to determine if you owe state income tax or are due a state income tax refund. Wisconsin 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 WI tax rate or tax brackets. The Wisconsin income tax rate tables and tax brackets shown on this web page are for illustration purposes only.

Wisconsin Tax Brackets 2017 - 2018

Looking at the tax rate and tax brackets shown in the tables above for Wisconsin, we can see that Wisconsin collects individual income taxes differently for Single versus Married filing statuses, for example. We can also see the progressive nature of Wisconsin state income tax rates from the lowest WI tax rate bracket of 3.9% to the highest WI tax rate bracket of 7.65%.

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

  • Tax rate of 3.9% on the first $11,230 of taxable income.
  • Tax rate of 5.74% on taxable income between $11,231 and $28,080.
  • Tax rate of 6.27% on taxable income between $28,081 and $247,350.
  • Tax rate of 7.65% on taxable income over $247,350.

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

  • Tax rate of 3.9% on the first $14,980 of taxable income.
  • Tax rate of 5.74% on taxable income between $14,981 and $37,450.
  • Tax rate of 6.27% on taxable income between $37,451 and $329,810.
  • Tax rate of 7.65% on taxable income over $329,810.

For the Single, Married Filing Jointly, Married Filing Separately, and Head of Household filing statuses, the WI tax rates and the number of tax brackets remain the same. Notice, however, the Wisconsin income tax brackets for Married Filing Jointly increase from $11,230 to $14,980 (not double) at 5.74%, and increase from $247,350 to $329,810 (not double) at 7.65% the highest tax bracket. Married Filing Separately income tax brackets are approximately one half that of the Married Filing Jointly income tax brackets in the state of Wisconsin.

Last updated: October 13, 2017