Calculation of Wisconsin Income Tax
Tables For Tax Year 2012

  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:

        Taxable Income

        At
        Least
        But
        Less Than
        Tax Computation
        $ 0 $   10,570 4.60% of excess over $0
        $  10,570 $   21,130 $486.22 plus 6.15% of excess over $10,570
        $  21,130 $ 100,000 $1,135.66 plus 6.50% of excess over $21,130
    2. Wisconsin taxable income of $100,000 or over, apply the following rates:

      Taxable Income

      At
      Least
      But
      Less Than
      Tax Computation
      $ 100,000 $ 158,500 $6,262.21 plus 6.50% of excess over $100,000
      $ 158,500 $ 232,660 $10,064.71 plus 6.75% of excess over $158,500
      $ 232,660 or over $15,070.51 plus 7.75% of excess over $232,660
  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:

        Taxable Income

        At
        Least
        But
        Less Than
        Tax Computation
        $ 0 $   14,090 4.60% of excess over $0
        $ 14,090 $   28,180 $648.14 plus 6.15% of excess over $14,090
        $ 28,180 $ 100,000 $1,514.68 plus 6.50% of excess over $28,180
    2. Wisconsin taxable income of $100,000 or over, apply the following rates:

      Taxable Income

      At
      Least
      But
      Less Than
      Tax Computation
      $ 100,000 $ 211,330 $6,182.98 plus 6.50% of excess over $100,000
      $ 211,330 $ 310,210 $13,419.43 plus 6.75% of excess over $211,330
      $ 310,210 or over $20,093.83 plus 7.75% of excess over $310,210
  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:

        Taxable Income

        At
        Least
        But
        Less Than
        Tax Computation
        $ 0 $    7,040 4.60% of excess over $0
        $   7,040 $   14,090 $323.84 plus 6.15% of excess over $7,040
        $ 14,090 $ 100,000 $757.42 plus 6.50% of excess over $14,090
    2. Wisconsin taxable income of $100,000 or over, apply the following rates:

      Taxable Income

      At
      Least
      But
      Less Than
      Tax Computation
      $ 100,000 $ 105,660 $6,341.57 plus 6.50% of excess over $100,000
      $ 105,660 $ 155,110 $6,709.47 plus 6.75% of excess over $105,660
      $ 155,110 or over $10,047.34 plus 7.75% of excess over $155,110

Calculation of Wisconsin Standard Deduction Tables
For Tax Year 2012

  1. Single
    1. Wisconsin income under $108,637:
      1. Determine midpoint of $500 brackets with the following exceptions:
        • $0 - $9,380 of Wisconsin income in first bracket has a standard deduction of $9,760.
        • $9,380 - $9,500 of Wisconsin income in second bracket has a standard deduction of $9,760.
        • $108,500- $108,637 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 $ 14,070 $9,760
        $ 14,070 $ 95,403 $9,760 less 12% of excess over $14,070
        $ 95,403 or over $0
    2. For Wisconsin income of $108,637 or over, the standard deduction is $0. (Note: The standard deduction table continues to $108,637 even though the standard deduction is $0 for single persons beginning with the $95,500 - $96,000 bracket.)
  2. Married Filing Jointly
    1. Wisconsin income under $108,637:
      1. Determine midpoint of $500 brackets with the following exceptions:
        • $0 - $9,380 of Wisconsin income in first bracket has a standard deduction of $17,580.
        • $9,380 - $9,500 of Wisconsin income in second bracket has a standard deduction of $17,580.
        • $108,500 - $108,637 in last bracket has a standard deduction of $13.
      2. Determine the standard deduction for that midpoint as follows:

        Wisconsin Income

        At
        Least
        But
        Less Than
        Standard Deduction
        $ 0 $  19,750 $17,580
        $  19,750 $ 108,637 $17,580 less 19.778% of excess over $19,750
        $ 108,637 or over $0
    2. For Wisconsin income of $108,637 or over, the standard deduction is $0.
  3. Married Filing Separately
    1. Wisconsin income under $108,637:
      1. Determine midpoint of $500 brackets with the following exceptions:
        • $0 - $9,380 of Wisconsin income in first bracket has a standard deduction of $8,350
        • $9,380 - $9,500 of Wisconsin income in second bracket has a standard deduction of $8,338.
        • $108,500 - $108,637 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 $   9,380 $8,350
        $  9,380 $ 51,599 $8,350 less 19.778% of excess over $9,380
        $ 51,599 or over   $0
    2. For Wisconsin income of $108,637 or over, the standard deduction is $0. (Note: The standard deduction table continues to $108,637 even though the standard deduction is $0 for married persons filing separately beginning with the $51,500 - $52,000 bracket.)
  4. Head of Household
    1. Wisconsin income under $108,637:
      1. Determine midpoint of $500 brackets with the following exceptions:
        • $0 - $9,380 of Wisconsin income in first bracket has a standard deduction of $12,610.
        • $9,380 - $9,500 of Wisconsin income in second bracket has a standard deduction of $12,610.
        • $108,500 - $108,637 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 $ 14,070 $12,610
        $ 14,070 $ 41,175 $12,610 less 22.515% of excess over $14,070
        $ 41,175 $ 95,403 $9,760 less 12% of excess over $14,070
        $ 95,403 or over $0
    2. For Wisconsin income of $108,637 or over, the standard deduction is $0. (Note: The standard deduction table continues to $108,637 even though the standard deduction is $0 for head of household beginning with the $95,500 - $96,000 bracket.)

Calculation of Wisconsin School Property Tax Credit Tables
For Tax Year 2012

Note: These tables have not changed from the 2011 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 2012

Note: These tables have not changed from the 2011 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).

July 6, 2012