Date of enactment:
2023 Assembly Bill 1020 Date of publication*:
2023 WISCONSIN ACT
AN ACT to repeal 71.06 (1), (1m), (1n) and (1p), 71.06 (1q), 71.06 (2) (a) to (h), 71.06 (2) (i), 71.06 (2) (j) and 71.06
(2e) (a) and (b); to amend 71.06 (1q) (intro.), 71.06 (2) (i) (intro.), 71.06 (2) (j) (intro.) and 71.06 (2m); and to create
71.06 (1r), 71.06 (2) (k), 71.06 (2) (L) and 71.06 (2e) (bm) of the statutes; relating to: expansion of the second indi-
vidual income tax bracket.
The people of the state of Wisconsin, represented in
senate and assembly, do enact as follows:
SECTION 1. 71.06 (1), (1m), (1n) and (1p) of the
statutes are repealed.
SECTION 2. 71.06 (1q) (intro.) of the statutes is
amended to read:
71.06 (1q) FIDUCIARIES, SINGLE INDIVIDUALS, AND
HEADS OF HOUSEHOLDS; AFTER 2012 TO 2023. (intro.) 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 indi-
viduals and heads of households shall be computed at the
following rates for taxable years beginning after Decem-
ber 31, 2012, and before January 1, 2024:
SECTION 3. 71.06 (1q) of the statutes, as affected by
2023 Wisconsin Acts 19 and .... (this act), is repealed.
SECTION 4. 71.06 (1r) of the statutes is created to
read:
71.06 (1r) FIDUCIARIES, SINGLE INDIVIDUALS, AND
HEADS OF HOUSEHOLD; AFTER 2023. The tax to be assessed,
levied, and collected upon the taxable incomes of all fidu-
ciaries, 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, 2023:
(a) On all taxable income from $0 to $14,320, 3.50
percent.
(b) On all taxable income exceeding $14,320 but not
exceeding $112,500, 4.40 percent.
(c) On all taxable income exceeding $112,500 but not
exceeding $315,310, 5.30 percent.
(d) On all taxable income exceeding $315,310, 7.65
percent.
SECTION 5. 71.06 (2) (a) to (h) of the statutes are
repealed.
SECTION 6. 71.06 (2) (i) (intro.) of the statutes is
amended to read:
71.06 (2) (i) (intro.) For joint returns, for taxable
years beginning after December 31, 2012, and before
January 1, 2024:
SECTION 7. 71.06 (2) (i) of the statutes, as affected by
2023 Wisconsin Acts 19 and .... (this act), is repealed.
SECTION 8. 71.06 (2) (j) (intro.) of the statutes is
amended to read:
71.06 (2) (j) (intro.) For married persons filing sepa-
rately, for taxable years beginning after Decem-
ber 31, 2012, and before January 1, 2024:
SECTION 9. 71.06 (2) (j) of the statutes, as affected by
2023 Wisconsin Acts 19 and .... (this act), is repealed.
* Section 991.11, WISCONSIN STATUTES: Effective date of acts. “Every act and every portion of an act enacted by the legislature over the governor’s
partial veto which does not expressly prescribe the time when it takes effect shall take effect on the day after its date of publication.” − 2 −2023 Wisconsin Act 2023 Assembly Bill 1020
SECTION 10. 71.06 (2) (k) of the statutes is created to
read:
71.06 (2) (k) For joint returns, for taxable years
beginning after December 31, 2023:
1. On all taxable income from $0 to $19,090, 3.50
percent.
2. On all taxable income exceeding $19,090 but not
exceeding $150,000, 4.40 percent.
3. On all taxable income exceeding $150,000 but not
exceeding $420,420, 5.30 percent.
4. On all taxable income exceeding $420,420, 7.65
percent.
SECTION 11. 71.06 (2) (L) of the statutes is created to
read:
71.06 (2) (L) For married persons filing separately,
for taxable years beginning after December 31, 2023:
1. On all taxable income from $0 to $9,550, 3.50 per-
cent.
2. On all taxable income exceeding $9,550 but not
exceeding $75,000, 4.40 percent.
3. On all taxable income exceeding $75,000 but not
exceeding $210,210, 5.30 percent.
4. On all taxable income exceeding $210,210, 7.65
percent.
SECTION 12. 71.06 (2e) (a) and (b) of the statutes are
repealed.
SECTION 13. 71.06 (2e) (bm) of the statutes is created
to read:
71.06 (2e) (bm) For taxable years beginning after
December 31, 2024, 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. con-
sumer price index for all urban consumers, U.S. city aver-
age, 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 2023, as deter-
mined 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 calcu-
lated for the previous year.
SECTION 14. 71.06 (2m) of the statutes is amended to
read:
71.06 (2m) RATE CHANGES. If a rate under sub. (1),
(1m), (1n), (1p), (1q), (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.
SECTION 15.0Nonstatutory provisions.
(1) INDIVIDUAL INCOME TAX WITHHOLDING TABLE
ADJUSTMENTS. No later than July 1, 2024, the department
of revenue shall update the individual income tax with-
holding tables under s. 71.64 (9) to reflect the tax rates,
brackets, and sliding scale standard deduction that are in
effect for taxable year 2024. The adjustments made
under this subsection to the withholding tables shall take
effect on July 1, 2024.
SECTION 16.0Effective dates. This act takes effect on
the day after publication, except as follows:
(1) The repeal of s. 71.06 (1q), (2) (i) and (j), and (2e)
(a) and (b) takes effect on January 1, 2029.