Calculation of Wisconsin Income Tax
Tables For Tax Year 2015

  1. Single, Head of Household, or Fiduciaries
    1. Wisconsin taxable income under $100,000:
      1. Determine midpoint of $100 brackets with the following exceptions:
        • $0 - $20 of taxable income in first bracket has a tax of –0–.
        • $20 - $40 of taxable income in second bracket has a tax of $1.
        • $40 - $100 of taxable income in third bracket has a tax of $3.
      2. Apply the following rates to that midpoint: (Note: Only the final amount should be rounded to the nearest dollar. Round .500 or more up and less than .500 down.)

        Taxable Income

        At
        Least
        But
        Less Than
        Tax Computation
        $ 0 $   11,090 4.00% of excess over $0
        $  11,090 $   22,190 $443.60 plus 5.84% of excess over $11,090
        $  22,190 $ 100,000 $1,091.84 plus 6.27% of excess over $22,190
    2. Wisconsin taxable income of $100,000 or over, apply the following rates:

      Taxable Income

      At
      Least
      But
      Less Than
      Tax Computation
      $ 100,000 $ 244,270 $5,970.527 plus 6.27% of excess over $100,000
      $ 244,270 or over $15,016.256 plus 7.65% of excess over $244,270
  2. Married Filing Jointly
    1. Wisconsin taxable income under $100,000:
      1. Determine midpoint of $100 brackets with the following exceptions:
        • $0 - $20 of taxable income in first bracket has a tax of –0–.
        • $20 - $40 of taxable income in second bracket has a tax of $1.
        • $40 - $100 of taxable income in third bracket has a tax of $3.
      2. Apply the following rates to that midpoint: (Note: Only the final amount should be rounded to the nearest dollar. Round .500 or more up and less than .500 down.)

        Taxable Income

        At
        Least
        But
        Less Than
        Tax Computation
        $ 0 $   14,790 4.00% of excess over $0
        $ 14,790 $   29,580 $591.60 plus 5.84% of excess over $14,790
        $ 29,580 $ 100,000 $1,455.336 plus 6.27% of excess over $29,580
    2. Wisconsin taxable income of $100,000 or over, apply the following rates:

      Taxable Income

      At
      Least
      But
      Less Than
      Tax Computation
      $ 100,000 $ 325,700 $5,870.67 plus 6.27% of excess over $100,000
      $ 325,700 or over $20,022.06 plus 7.65% of excess over $325,700
  3. Married Filing Separately
    1. Wisconsin taxable income under $100,000:
      1. Determine midpoint of $100 brackets with the following exceptions:
        • $0 - $20 of taxable income in first bracket has a tax of –0–.
        • $20 - $40 of taxable income in second bracket has a tax of $1.
        • $40 - $100 of taxable income in third bracket has a tax of $3.
      2. Apply the following rates to that midpoint: (Note: Only the final amount should be rounded to the nearest dollar. Round .500 or more up and less than .500 down.)

        Taxable Income

        At
        Least
        But
        Less Than
        Tax Computation
        $ 0 $    7,400 4.00% of excess over $0
        $   7,400 $   14,790 $296.00 plus 5.84% of excess over $7,400
        $ 14,790 $ 100,000 $727.576 plus 6.27% of excess over $14,790
    2. Wisconsin taxable income of $100,000 or over, apply the following rates:

      Taxable Income

      At
      Least
      But
      Less Than
      Tax Computation
      $ 100,000 $ 162,850 $6,070.243 plus 6.27% of excess over $100,000
      $ 162,850 or over $10,010.938 plus 7.65% of excess over $162,850

Calculation of Wisconsin Standard Deduction Tables
For Tax Year 2015

  1. Single
    1. Wisconsin income under $114,076:
      1. Determine midpoint of $500 brackets with the following exceptions:
        • $0 - $9,850 of Wisconsin income in first bracket has a standard deduction of $10,250.
        • $9,850 - $10,000 of Wisconsin income in second bracket has a standard deduction of $10,250.
        • $114,000- $114,076 in last bracket has a standard deduction of $0.
      2. Determine the standard deduction for that midpoint as follows:

        Wisconsin Income

        At
        Least
        But
        Less Than
        Standard Deduction
        $ 0 $ 14,780 $10,250
        $ 14,780 $100,197 $10,250 less 12% of excess over $14,780
        $100,197 or over $0
    2. For Wisconsin income of $114,076 or over, the standard deduction is $0. (Note: The standard deduction table continues to $114,076 even though the standard deduction is $0 for single persons beginning with the $100,000 - $100,500 bracket.)
  2. Married Filing Jointly
    1. Wisconsin income under $114,076:
      1. Determine midpoint of $500 brackets with the following exceptions:
        • $0 - $9,850 of Wisconsin income in first bracket has a standard deduction of $18,460.
        • $9,850 - $10,000 of Wisconsin income in second bracket has a standard deduction of $18,460.
        • $114,000 - $114,076 in last bracket has a standard deduction of $8.
      2. Determine the standard deduction for that midpoint as follows:

        Wisconsin Income

        At
        Least
        But
        Less Than
        Standard Deduction
        $ 0 $  20,740 $18,460
        $  20,740 $ 114,076 $18,460 less 19.778% of excess over $20,740
        $ 114,076 or over $0
    2. For Wisconsin income of $114,076 or over, the standard deduction is $0.
  3. Married Filing Separately
    1. Wisconsin income under $114,076:
      1. Determine midpoint of $500 brackets with the following exceptions:
        • $0 - $9,850 of Wisconsin income in first bracket has a standard deduction of $8,770
        • $9,850 - $10,000 of Wisconsin income in second bracket has a standard deduction of $8,755.
        • $114,000 - $114,076 in last bracket has a standard deduction of $0.
      2. Determine the standard deduction for that midpoint as follows:

        Wisconsin Income

        At
        Least
        But
        Less Than
        Standard Deduction
        $ 0 $   9,850 $8,770
        $  9,850 $ 54,192 $8,770 less 19.778% of excess over $9,850
        $ 54,192 or over $0
    2. For Wisconsin income of $114,076 or over, the standard deduction is $0. (Note: The standard deduction table continues to $114,076 even though the standard deduction is $0 for married persons filing separately beginning with the $54,000 - $54,500 bracket.)
  4. Head of Household
    1. Wisconsin income under $114,076:
      1. Determine midpoint of $500 brackets with the following exceptions:
        • $0 - $9,850 of Wisconsin income in first bracket has a standard deduction of $13,240.
        • $9,850 - $10,000 of Wisconsin income in second bracket has a standard deduction of $13,240.
        • $114,000 - $114,076 in last bracket has a standard deduction of $0.
      2. Determine the standard deduction for that midpoint as follows:

        Wisconsin Income

        At
        Least
        But
        Less Than
        Standard Deduction
        $ 0 $ 14,780 $13,240
        $ 14,780 $ 43,217 $13,240 less 22.515% of excess over $14,780
        $ 43,217 $100,197 $10,250 less 12% of excess over $14,780
        $100,197 or over $0
    2. For Wisconsin income of $114,076 or over, the standard deduction is $0. (Note: The standard deduction table continues to $114,076 even though the standard deduction is $0 for head of household beginning with the $100,000 - $100,500 bracket.)

Calculation of Wisconsin School Property Tax Credit Tables
For Tax Year 2015

Note: These tables have not changed from the 2014 version.

  1. Homeowner's School Property Tax Credit Table
    1. Property tax paid of less than $2,500:
      1. Determine midpoint of $25 brackets ($1 - $25 of property tax paid in first bracket has a credit of $2).
      2. Multiply the midpoint by 0.12.
    2. For property tax paid of $2,500 or more, the credit is $300.
  2. Renter's School Property Tax Credit Table
    1. If heat included in rent:
      1. Determine midpoint of $100 brackets ($1 - $100 of rent paid in first bracket has a credit of $1).
      2. Multiply the midpoint by 0.024.
      3. For rent paid of $12,500 or more, the credit is $300.
    2. If heat not included in rent:
      1. Determine midpoint of $100 brackets ($1 - $100 of rent paid in first bracket has a credit of $2).
      2. Multiply the midpoint by 0.03.
      3. For rent paid of $10,000 or more, the credit is $300.

Calculation of Wisconsin Homestead Credit Tables A and B
For Tax Year 2015

Note: These tables have not changed from the 2014 version.

  1. Table A
    1. Determine midpoint of $115 brackets with the following exceptions:
      • $0 - $8,060 of household income in first bracket has a Table A amount of $0.
      • $24,620 - $24,680 of household income in second-to-last bracket has a Table A amount of $1,457.
      • $24,680 or more of household income in last bracket has a Table A amount of $1,460.
    2. Determine the Table A amount for that midpoint as follows:
      [Midpoint - $8,060] X .0878459
  2. Table B
    1. Determine the midpoint of $10 brackets with the following exceptions:
      • $0 - $.01 in first bracket has a Table B amount of $0.
      • $.01 - $10 in second bracket has a Table B amount of $10.
      • $1,460 or more in last bracket has a Table B amount of $1,168.
    2. Determine the Table B amount for that midpoint by multiplying the midpoint by 80% (.80).

August 28, 2015