(1q) FIDUCIARIES, SINGLE INDIVIDUALS, AND HEADS OF HOUSEHOLDS; 2012 TO 2024. The tax to be assessed, levied, and collected upon the taxable incomes of all fiduciaries, except fiduciaries of nuclear decommissioning trust or reserve funds, and single individuals and heads of households shall be computed at the following rates for taxable years beginning after December 31, 2012, and before January 1, 2025: (a) On all taxable income from $0 to $7,500, 4.40 percent, except that for taxable years beginning after December 31, 2013, 4.0 percent, less fifty hundredths for taxable years beginning after December 2022. (b) On all taxable income exceeding $7,500 but not exceeding $15,000, 5.84 percent, except that for taxable years beginning after December 31, 2018, 5.21 percent, less eighty-one hundredths for taxable years beginning after December 2022. (c) On all taxable income exceeding $15,000 but not exceeding $225,000, 6.27 percent, except that for taxable years beginning after December 31, 2020, 5.30 percent. (d) On all taxable income exceeding $225,000, 7.65 percent. (1r) FIDUCIARIES, SINGLE INDIVIDUALS, AND HEADS OF HOUSEHOLD; AFTER 2024. The tax to be assessed, levied, and collected upon the taxable incomes of all fiduciaries, except fiduciaries of nuclear decommissioning trust or reserve funds, and single individuals and heads of households shall be computed at the following rates for taxable years beginning after December 31, 2024: (a) On all taxable income from $0 to $14,680, 3.50 percent. (b) On all taxable income exceeding $14,680 but not exceeding $50,480, 4.40 percent. (c) On all taxable income exceeding $50,480 but not exceeding $323,290, 5.30 percent. (d) On all taxable income exceeding $323,290, 7.65 percent. (2) MARRIED PERSONS. The tax to be assessed, levied and collected upon the taxable incomes of all married persons shall be computed at the following rates: (i) For joint returns, for taxable years beginning after December 31, 2012, and before January 1, 2025: 1. On all taxable income from $0 to $10,000, 4.40 percent, except that for taxable years beginning after December 31, 2013, 4.0 percent, less fifty hundredths for taxable years beginning after December 2022. 2. On all taxable income exceeding $10,000 but not exceeding $20,000, 5.84 percent, except that for taxable years beginning after December 31, 2018, 5.21 percent, less eighty-one hundredths for taxable years beginning after December 2022. 3. On all taxable income exceeding $20,000 but not exceeding $300,000, 6.27 percent, except that for taxable years beginning after December 31, 2020, 5.30 percent. 4. On all taxable income exceeding $300,000, 7.65 percent. (j) For married persons filing separately, for taxable years beginning after December 31, 2012, and before January 1, 2025: 1. On all taxable income from $0 to $5,000, 4.40 percent, except that for taxable years beginning after December 31, 2013, 4.0 percent, less fifty hundredths for taxable years beginning after December 2022. 2. On all taxable income exceeding $5,000 but not exceeding $10,000, 5.84 percent, except that for taxable years beginning after December 31, 2018, 5.21 percent, less eighty-one hundredths for taxable years beginning after December 2022. 3. On all taxable income exceeding $10,000 but not exceeding $150,000, 6.27 percent, except that for taxable years beginning after December 31, 2020, 5.30 percent. 4. On all taxable income exceeding $150,000, 7.65 percent. (k) For joint returns, for taxable years beginning after December 31, 2024: 1. On all taxable income from $0 to $19,580, 3.50 percent. 2. On all taxable income exceeding $19,580 but not exceeding $67,300, 4.40 percent. 3. On all taxable income exceeding $67,300 but not exceeding $431,060, 5.30 percent. 4. On all taxable income exceeding $431,060, 7.65 percent. (L) For married persons filing separately, for taxable years beginning after December 31, 2024: 1. On all taxable income from $0 to $9,790, 3.50 percent. 2. On all taxable income exceeding $9,790 but not exceeding $33,650, 4.40 percent. 3. On all taxable income exceeding $33,650 but not exceeding $215,530, 5.30 percent. 4. On all taxable income exceeding $215,530, 7.65 percent. (2e) BRACKET INDEXING. (a) For taxable years beginning after December 31, 1998, and before January 1, 2000, the maximum dollar amount in each tax bracket, and the corresponding minimum dollar amount in the next bracket, under subs. (1m) and (2) (c) and (d) [s. 71.06 (1m), 2023 stats., s. 71.06 (2) (c), 2023 stats., and s. 71.06 (2) (d), 2023 stats.], and for taxable years beginning after December 31, 1999, and before January 1, 2025, the maximum dollar amount in each tax bracket, and the corresponding minimum dollar amount in the next bracket, under subs. (1n), (1p) (a) to (c), (1q) (a) and (b), and (2) (e), (f), (g) 1. to 3., (h) 1. to 3., (i) 1. and 2., and (j) 1. and 2. [subs. (1q) (a) and (b) and (2) (i) 1. and 2. and (j) 1. and 2. and s. 71.06 (1n), 2023 stats., s. 71.06 (1p) (a) to (c), 2023 stats., s. 71.06 (2) (e), 2023 stats., s. 71.06 (2) (f), 2023 stats., s. 71.06 (2) (g) 1. to 3., 2023 stats., and s. 71.06 (2) (h) 1. to 3., 2023 stats.], shall be increased each year by a percentage equal to the percentage change between the U.S. consumer price index for all urban consumers, U.S. city average, for the month of August of the previous year and the U.S. consumer price index for all urban consumers, U.S. city average, for the month of August 1997, as determined by the federal department of labor, except that for taxable years beginning after December 31, 2000, and before January 1, 2002, the dollar amount in the top bracket under subs. (1p) (c) and (d), (2) (g) 3. and 4. and (h) 3. and 4. [s. 71.06 (1p) (c), 2023 stats., s. 71.06 (1p) (d), 2023 stats., s. 71.06 (2) (g) 3. , 2023 stats., s. 71.06 (2) (g) 4. , 2023 stats., s. 71.06 (2) (h) 3., 2023 stats., and s. 71.06 (2) (h) 4., 2023 stats.,] shall be increased by a percentage equal to the percentage change between the U.S. consumer price index for all urban consumers, U.S. city average, for the month of August of the previous year and the U.S. consumer price index for all urban consumers, U.S. city average, for the month of August 1999, as determined by the federal department of labor, except that for taxable years beginning after December 31, 2011, the adjustment may occur only if the resulting amount is greater than the corresponding amount that was calculated for the previous year. (1m), (1n), (1p), and (2) (c), (d), (e), (f), (g), and (h) were repealed by 2025 Wis. Act 118. Corrective legislation is pending. (b) For taxable years beginning after December 31, 2009, and before January 1, 2025, the maximum dollar amount in each tax bracket, and the corresponding minimum dollar amount in the next bracket, under subs. (1p) (d), (1q) (c), and (2) (g) 4., (h) 4., (i) 3., and (j) 3. [subs. (1q) (c) and (2) (i) 3. and (j) 3. and s. 71.06 (1p) (d), 2023 stats., s. 71.06 (2) (g) 4., 2023 stats., and s. 71.06 (2) (h) 4., 2023 stats.], and the dollar amount in the top bracket under subs. (1p) (e), (1q) (d), and (2) (g) 5., (h) 5., (i) 4., and (j) 4. [subs. (1q) (d) and (2) (i) 4. and (j) 4. and s. 71.06 (1p) (e), 2023 stats., s. 71.06 (2) (g) 5., 2023 stats., and s. 71.06 (2) (h) 5., 2023 stats.], shall be increased each year by a percentage equal to the percentage change between the U.S. consumer price index for all urban consumers, U.S. city average, for the month of August of the previous year and the U.S. consumer price index for all urban consumers, U.S. city average, for the month of August 2008, as determined by the federal department of labor, except that for taxable years beginning after December 31, 2011, the adjustment may occur only if the resulting amount is greater than the corresponding amount that was calculated for the previous year. (1p) and (2) (g) and (h) were repealed by 2025 Wis. Act 118. Corrective legislation is pending. (bm) For taxable years beginning after December 31, 2025, the maximum dollar amount in each tax bracket, and the corresponding minimum dollar amount in the next bracket, under subs. (1r) and (2) (k) and (L), shall be increased each year by a percentage equal to the percentage change between the U.S. consumer price index for all urban consumers, U.S. city average, for the month of August of the previous year and the U.S. consumer price index for all urban consumers, U.S. city average, for the month of August 2024, as determined by the federal department of labor, except that the adjustment may occur only if the resulting amount is greater than the corresponding amount that was calculated for the previous year. (c) Each amount that is revised under this subsection shall be rounded to the nearest multiple of $10 if the revised amount is not a multiple of $10 or, if the revised amount is a multiple of $5, such an amount shall be increased to the next higher multiple of $10. The department of revenue shall annually adjust the changes in dollar amounts required under this subsection and incorporate the changes into the income tax forms and instructions. (2m) RATE CHANGES. If a rate under sub. (1r) or (2) (k) or (L) changes during a taxable year, the taxpayer shall compute the tax for that taxable year by the methods applicable to the federal income tax under section 15 of the Internal Revenue Code. (2s) NONRESIDENTS AND PART-YEAR RESIDENTS. (a) For taxable years beginning after December 31, 1996, and before January 1, 1998, with respect to nonresident individuals, including individuals changing their domicile into or from this state, the tax brackets under subs. (1) and (2) [sub. (2) and s. 71.06 (1), 2023 stats.,] shall be multiplied by a fraction, the numerator of which is Wisconsin adjusted gross income and the denominator of which is federal adjusted gross income. In this paragraph, for married persons filing separately “adjusted gross income” means the separate adjusted gross income of each spouse, and for married persons filing jointly “adjusted gross income” means the total adjusted gross income of both spouses. If an individual and that individual’s spouse are not both domiciled in this state during the entire taxable year, the tax brackets under subs. (1) and (2) [sub. (2) and s. 71.06 (1), 2023 stats.,] on a joint return shall be multiplied by a fraction, the numerator of which is their joint Wisconsin adjusted gross income and the denominator of which is their joint federal adjusted gross income. (b) For taxable years beginning after December 31, 1997, and before January 1, 2000, with respect to nonresident individuals, including individuals changing their domicile into or from this state, the tax brackets under subs. (1m) and (2) (c) and (d) [s. 71.06 (1m), 2023 stats., s. 71.06 (2) (c), 2023 stats., and s. 71.06 (2) (d), 2023 stats.,] shall be multiplied by a fraction, the numerator of which is Wisconsin adjusted gross income and the denominator of which is federal adjusted gross income. In this paragraph, for married persons filing separately “adjusted gross income” means the separate adjusted gross income of each spouse, and for married persons filing jointly “adjusted gross income” means the total adjusted gross income of both spouses. If an individual and that individual’s spouse are not both domiciled in this state during the entire taxable year, the tax brackets under subs. (1m) and (2) (c) and (d) [s. 71.06 (1m), 2023 stats., s. 71.06 (2) (c), 2023 stats., and s. 71.06 (2) (d), 2023 stats.,] on a joint return shall be multiplied by a fraction, the numerator of which is their joint Wisconsin adjusted gross income and the denominator of which is their joint federal adjusted gross income. (1m) and (2) (c) and (d) were repealed by 2025 Wis. Act 118. Corrective legislation is pending. (c) For taxable years beginning after December 31, 1999, and before January 1, 2001, with respect to nonresident individuals, including individuals changing their domicile into or from this state, the tax brackets under subs. (1n) and (2) (e) and (f) [s. 71.06 (1n), 2023 stats., s. 71.06 (2) (e), 2023 stats., and s. 71.06 (2) (f), 2023 stats.,] shall be multiplied by a fraction, the numerator of which is Wisconsin adjusted gross income and the denominator of which is federal adjusted gross income. In this paragraph, for married persons filing separately “adjusted gross income” means the separate adjusted gross income of each spouse, and for married persons filing jointly “adjusted gross income” means the total adjusted gross income of both spouses. If an individual and that individual’s spouse are not both domiciled in this state during the entire taxable year, the tax brackets under subs. (1n) and (2) (e) and (f) [s. 71.06 (1n), 2023 stats., s. 71.06 (2) (e) , 2023 stats., and s. 71.06 (2) (f), 2023 stats.,] on a joint return shall be multiplied by a fraction, the numerator of which is their joint Wisconsin adjusted gross income and the denominator of which is their joint federal adjusted gross income. (1n) and (2) (e) and (f) were repealed by 2025 Wis. Act 118. Corrective legislation is pending. (d) For taxable years beginning after December 31, 2000, with respect to nonresident individuals, including individuals changing their domicile into or from this state, the tax brackets under subs. (1p), (1q), (1r), and (2) (g), (h), (i), (j), (k), and (L) [subs. (1q), (1r), and (2) (i), (j), (k), and (L) and s. 71.06 (1p), 2023 stats., s. 71.06 (2) (g), 2023 stats., and s. 71.06 (2) (h), 2023 stats.,] shall be multiplied by a fraction, the numerator of which is Wisconsin adjusted gross income and the denominator of which is federal adjusted gross income. In this paragraph, for married persons filing separately “adjusted gross income” means the separate adjusted gross income of each spouse, and for married persons filing jointly “adjusted gross income” means the total adjusted gross income of both spouses. If an individual and that individual’s spouse are not both domiciled in this state during the entire taxable year, the tax brackets under subs. (1p), (1q), (1r), and (2) (g), (h), (i), (j), (k), and (L) [subs. (1q), (1r), and (2) (i), (j), (k), and (L) and s. 71.06 (1p), 2023 stats., s. 71.06 (2) (g) , 2023 stats., and s. 71.06 (2) (h) , 2023 stats.,] on a joint return shall be multiplied by a fraction, the numerator of which is their joint Wisconsin adjusted gross income and the denominator of which is their joint federal adjusted gross income. (1p) and (2) (g) and (h) were repealed by 2025 Wis. Act 118. Corrective legislation is pending. (d) For taxable years beginning after December 31, 2000, with respect to nonresident individuals, including individuals changing their domicile into or from this state, the tax brackets under subs. (1p), (1q), (1r), and (2) (g), (h), (k), and (L) [subs. (1r) and (2) (k) and (L) and s. 71.06 (1p), 2023 stats., s. 71.06 (2) (g), 2023 stats., s. 71.06 (2) (h), 2023 stats., and s. 71.06 (1q), 2029 stats.,] shall be multiplied by a fraction, the numerator of which is Wisconsin adjusted gross income and the denominator of which is federal adjusted gross income. In this paragraph, for married persons filing separately “adjusted gross income” means the separate adjusted gross income of each spouse, and for married persons filing jointly “adjusted gross income” means the total adjusted gross income of both spouses. If an individual and that individual’s spouse are not both domiciled in this state during the entire taxable year, the tax brackets under subs. (1p), (1q), (1r), and (2) (g), (h), (k), and (L) [subs. (1r) and (2) (k) and (L) and s. 71.06 (1p), 2023 stats., s. 71.06 (2) (g), 2023 stats., s. 71.06 (2) (h), 2023 stats., and s. 71.06 (1q), 2029 stats.,] on a joint return shall be multiplied by a fraction, the numerator of which is their joint Wisconsin adjusted gross income and the denominator of which is their joint federal adjusted gross income. (1p) and (2) (g) and (h) were repealed eff. 3-29-26 by 2025 Wis. Act 118, and s. 71.06 (1q) is repealed by eff. 1-1-31 by 2025 Wis. Act 118. Corrective legislation is pending. (3) TAX TABLE. The secretary of revenue shall prepare a table from which the tax in effect on taxable personal income shall be determined. Such table shall be published in the department’s appropriate instructional booklets. The form and the tax computations of the table shall be substantially as follows: (a) The title thereof shall be “Tax Table”. (b) The first 2 columns shall contain the minimum and the maximum amounts, respectively, of taxable income in brackets of not more than $100. Computation of tax on taxable income in excess of the amount shown on the table may be set forth at the foot of such table. (c) The 3rd column shall show the amount of the tax payable for each bracket before the allowance of any credit. The tax shall be computed at the rates in effect, which rates shall be applied to the amount of income at the middle of each bracket. The amount of tax for each bracket shall be computed to the nearest dollar.
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