Wisconsin Code § 71.01

Definitions
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In this chapter in regard to natural persons and fiduciaries, except fiduciaries of nuclear decommissioning trust or reserve funds:
(1) “Adjusted gross income”, when not preceded by the word
“federal”, means Wisconsin adjusted gross income, unless otherwise defined or the context plainly requires otherwise.
(1am) “Aggregate effective tax rate” means the sum of the effective tax rates imposed by a state, U.S. possession, foreign
country, or any combination thereof, on the person or entity.
(1as) “Broadcaster” means a television or radio station licensed by the federal communications commission, a television
or radio broadcast network, a cable television network, or a television distribution company. “Broadcaster” does not include a cable service provider, a direct broadcast satellite system, or an Internet content distributor.
(1b) For purposes of s. 71.04 (7) (df) , (dh), (dj), and (dk),
“commercial domicile” means the location from which a trade or
business is principally managed and directed, based on any factors the department determines are appropriate, including the location where the greatest number of employees of the trade or
business work, have their office or base of operations, or from
which the employees are directed or controlled.
(1m) “Department” means the department of revenue.
(1n) For purposes of s. 71.04 (7) (df) , (dh), (dj), and (dk),
“domicile” means an individual’s true, fixed, and permanent
home where the individual intends to remain permanently and indefinitely and to which, whenever absent, the individual intends
to return, except that no individual may have more than one domicile at any time.
(1t) “Effective tax rate” means the maximum tax rate imposed by the state, U.S. possession, or foreign country, multiplied
by the apportionment percentage, if any, applicable to the person
or entity under the laws of that state, U.S. possession, or foreign
country.
(2) “Entertainer” means a nonresident natural person who,
for consideration, furnishes amusement, entertainment or public
speaking services, or performs in one or more sporting events in
this state and includes both employees and independent
contractors.
(3) “Federal net operating loss” of persons other than corporations means net operating loss as determined by the taxpayer
under the internal revenue code, or if redetermined by the department, as determined by the department under such code or as
may be determined on final appeal therefrom.
(4) “Federal taxable income” and “federal adjusted gross income” of natural persons and fiduciaries mean taxable income or
adjusted gross income as determined under the internal revenue
code or, if redetermined by the department, as determined by the
department under the internal revenue code or as may be determined on final appeal therefrom.
(5) “Fiduciary”, “income” and “person” and all other terms
not otherwise defined, have the same meaning as in the internal
revenue code unless otherwise defined or the context requires
otherwise.
(5g) “File” means mail or deliver a document that the department prescribes to the department or, if the department prescribes another method of submitting or another destination, use
that other method or submit to that other destination.
(5m) “Head of household” has the meaning given in section 2
(b) and (c) of the internal revenue code, except that “head of
household” includes surviving spouse, as defined in section 2 (a)
of the internal revenue code.
(5n) For purposes of s. 71.05 (6) (a) 24. and (b) 46., “intangible expenses” include the following, to the extent that the
amounts would otherwise be deductible in computing Wisconsin
adjusted gross income:
(a) Expenses, losses, and costs for, related to, or directly or indirectly in connection with the acquisition, use, maintenance,
management, ownership, sale, exchange, or any other disposition
of intangible property.
(b) Losses related to, or incurred in connection directly or indirectly with, factoring transactions or discounting transactions.
(c) Royalty, patent, technical, and copyright fees.
(d) Licensing fees.
(e) Other similar expenses, losses, and costs.
(5p) “Intangible property” includes stocks, bonds, financial
instruments, patents, patent applications, trade names, trademarks, service marks, copyrights, mask works, trade secrets, and
similar types of intangible assets.
(5s) For purposes of s. 71.05 (6) (a) 24. and (b) 46., “interest
expenses” means interest that would otherwise be deductible under section 163 of the Internal Revenue Code and deductible in
the computation of Wisconsin adjusted gross income.
(6) (L) 1. For taxable years beginning after December 31,
2017, and before January 1, 2021, for individuals and fiduciaries,
except fiduciaries of nuclear decommissioning trust or reserve
funds, “Internal Revenue Code” means the federal Internal Revenue Code as amended to December 31, 2017, except as provided
in subds. 2. and 3. and s. 71.98, and subject to subd. 4.
2. For purposes of this paragraph, “Internal Revenue Code”
does not include the following provisions of federal public laws
for taxable years beginning after December 31, 2017: sections 1,
3, 4, and 5 of P.L. 106-519; sections 101, 102, and 422 of P.L.
108-357; sections 1310 and 1351 of P.L. 109-58; section 11146
of P.L. 109-59; section 403 (q) of P.L. 109-135; section 513 of
P.L. 109-222; section 104 of P.L. 109-432; sections 8233 and
8235 of P.L. 110-28; section 11 (e) and (g) of P.L. 110-172; section 301 of P.L. 110-245; section 15351 of P.L. 110-246; section
302 of division A, section 401 of division B, and sections 312,
322, 502 (c), 707, and 801 of division C of P.L. 110-343; sections
1232, 1251, 1501, and 1502 of division B of P.L. 111-5; sections
211, 212, 213, 214, and 216 of P.L. 111-226; section 2122 of P.L.
111-240; sections 754 and 760 of P.L. 111-312; sections 104,
318, 322, 323, 326, 327, and 411 of P.L. 112-240; P.L. 114-7;
section 1101 of P.L. 114-74; section 305 of division P of P.L.
114-113; sections 123, 125 to 128, 143, 144, 151 to 153, 165 to
167, 169 to 171, 189, 191, 326, and 411 of division Q of P.L. 114113; and sections 11011, 11012, 13201 (a) to (e) and (g), 13206,
13221, 13301, 13304 (a), (b), and (d), 13531, 13601, 13801,
14101, 14102, 14103, 14201, 14202, 14211, 14212, 14213,
14214, 14215, 14221, 14222, 14301, 14302, 14304, and 14401
of P.L. 115-97.
3. For purposes of this paragraph, “Internal Revenue Code”
does not include amendments to the federal Internal Revenue
Code, including provisions of federal public laws that directly or
indirectly affect the Internal Revenue Code, enacted after December 31, 2017, except that “Internal Revenue Code” includes sections 40307, 40413, and 41113 of P.L. 115-123; sections 101
(m), (n), (o), (p), and (q), 104 (a), 109, 401 (a) (54) and (b) (15)
(A), (B), and (C) 19, 20, 23, 26, 27, and 28 of division U of P.L.
115-141; sections 102 and 104 of division M, sections 102, 103,
106, 107, 108, 109, 110, 111, 113, 114, 115, 116, 201, 204, 205,
206, 302, 401, and 601 of division O, section 1302 of division P,
and sections 131, 202 (d), and 205 of division Q of P.L. 116-94;
sections 1106, 2202, 2203, 2204, 2205, 2206, 2307, 3608, 3609,

3701, and 3702 of division A of P.L. 116-136; sections 202, 208,
209, 211, and 214 of division EE and sections 276 (a) and (b),
277, 278 (a), (b), (c), and (d), 280, and 285 of division N of P.L.
116-260; and sections 9701, 9702, 9703, 9704, 9705, 9706, and
9707 of P.L. 117-2.
4. For purposes of this paragraph, the provisions of federal
public laws that directly or indirectly affect the Internal Revenue
Code, as defined in this paragraph, apply for Wisconsin purposes
at the same time as for federal purposes, except as follows:
a. Changes made by P.L. 115-63 and sections 11026, 11027,
11028, 13207, 13306, 13307, 13308, 13311, 13312, 13501,
13705, 13821, and 13823 of P.L. 115-97 first apply for taxable
years beginning after December 31, 2017.
b. Changes made by section 1201 of P.L. 108-173 and section 307 of P.L. 109-432 first apply for taxable years beginning
after December 31, 2010.
c. Changes made by section 13113 of P.L. 103-66; section
1241 of division B of P.L. 111-5; section 2011 of P.L. 111-240;
section 753 of P.L. 111-312; and section 324 of P.L. 112-240 first
apply for taxable years beginning after December 31, 2018.
(m) 1. For taxable years beginning after December 31, 2020,
and before January 1, 2023, for individuals and fiduciaries, except fiduciaries of nuclear decommissioning trust or reserve
funds, “Internal Revenue Code” means the federal Internal Revenue Code as amended to December 31, 2020, except as provided
in subds. 2. and 3. and s. 71.98, and subject to subd. 4.
2. For purposes of this paragraph, “Internal Revenue Code”
does not include the following provisions of federal public laws
for taxable years beginning after December 31, 2020: sections 1,
3, 4, and 5 of P.L. 106-519; sections 101, 102, and 422 of P.L.
108-357; sections 1310 and 1351 of P.L. 109-58; section 11146
of P.L. 109-59; section 403 (q) of P.L. 109-135; section 513 of
P.L. 109-222; section 104 of P.L. 109-432; sections 8233 and
8235 of P.L. 110-28; section 11 (e) and (g) of P.L. 110-172; section 301 of P.L. 110-245; section 15351 of P.L. 110-246; section
302 of division A, section 401 of division B, and sections 312,
322, 502 (c), 707, and 801 of division C of P.L. 110-343; sections
1232, 1251, 1501, and 1502 of division B of P.L. 111-5; sections
211, 212, 213, 214, and 216 of P.L. 111-226; section 2122 of P.L.
111-240; sections 754 and 760 of P.L. 111-312; sections 104,
318, 322, 323, 326, 327, and 411 of P.L. 112-240; P.L. 114-7;
section 1101 of P.L. 114-74; section 305 of division P of P.L.
114-113; sections 123, 125 to 128, 143, 144, 151 to 153, 165 to
167, 169 to 171, 189, 191, 326, and 411 of division Q of P.L. 114113; sections 11011, 11012, 13201 (a) to (e) and (g), 13206,
13221, 13301, 13304 (a), (b), and (d), 13531, 13601, 13801,
14101, 14102, 14103, 14201, 14202, 14211, 14212, 14213,
14214, 14215, 14221, 14222, 14301, 14302, 14304, and 14401
of P.L. 115-97; sections 40304, 40305, 40306, and 40412 of P.L.
115-123; section 101 (c) of division T of P.L. 115-141; sections
101 (d) and (e), 102, 201 to 207, 301, 302, and 401 (a) (47) and
(195), (b) (13), (17), (22) and (30), and (d) (1) (D) (v), (vi), (xiii),
and (xvii) (II) of division U of P.L. 115-141; sections 104, 114,
115, 116, 130, and 145 of division Q of P.L. 116-94; sections
2304 and 2306 of P.L. 116-136; and sections 111, 114, 115, 116,
118 (a) and (d), 133, 137, 138, and 210 of division EE of P.L.
116-260.
3. For purposes of this paragraph, “Internal Revenue Code”
does not include amendments to the federal Internal Revenue
Code, including provisions of federal public laws that directly or
indirectly affect the Internal Revenue Code, enacted after December 31, 2020, except that “Internal Revenue Code” includes sections 9671, 9701, 9702, 9703, 9704, 9705, 9706, and 9707 of P.L.
117-2; and sections 80501, 80504, and 80602 of division H of
P.L. 117-58.
4. For purposes of this paragraph, the provisions of federal
public laws that directly or indirectly affect the Internal Revenue
Code, as defined in this paragraph, apply for Wisconsin purposes
at the same time as for federal purposes, except as follows:
a. Changes made by sections 20101, 20102, 20104, 20201,
40201, 40202, 40203, 40308, 40309, 40311, 40414, 41101,
41107, 41114, 41115, and 41116 of P.L. 115-123; section 101
(a), (b), and (h) of division U of P.L. 115-141; section 1203 of
P.L. 116-25; section 1122 of P.L. 116-92; section 301 of division
O, section 1302 of division P, and sections 101, 102, 103, 117,
118, 132, 201, 202 (a), (b), and (c), 204 (a), (b), and (c), 301, and
302 of division Q of P.L. 116-94; section 2 of P.L. 116-98; and
sections 301, 302, and 304 of division EE of P.L. 116-260 apply
for taxable years beginning after December 31, 2020.
b. Changes made by section 1201 of P.L. 108-173 and section 307 of P.L. 109-432 first apply for taxable years beginning
after December 31, 2010.
(n) 1. For taxable years beginning after December 31, 2022,
for individuals and fiduciaries, except fiduciaries of nuclear decommissioning trust or reserve funds, “Internal Revenue Code”
means the federal Internal Revenue Code as amended to December 31, 2022, except as provided in subds. 2. and 3. and s. 71.98,
and subject to subd. 4.
2. For purposes of this paragraph, “Internal Revenue Code”
does not include the following provisions of federal public laws
for taxable years beginning after December 31, 2022: sections 1,
3, 4, and 5 of P.L. 106-519; sections 101, 102, and 422 of P.L.
108-357; sections 1310 and 1351 of P.L. 109-58; section 11146
of P.L. 109-59; section 403 (q) of P.L. 109-135; section 513 of
P.L. 109-222; section 104 of P.L. 109-432; sections 8233 and
8235 of P.L. 110-28; section 11 (e) and (g) of P.L. 110-172; section 301 of P.L. 110-245; section 15351 of P.L. 110-246; section
302 of division A, section 401 of division B, and sections 312,
322, 502 (c), 707, and 801 of division C of P.L. 110-343; sections
1232, 1251, 1501, and 1502 of division B of P.L. 111-5; sections
211, 212, 213, 214, and 216 of P.L. 111-226; section 2122 of P.L.
111-240; sections 754 and 760 of P.L. 111-312; sections 104,
318, 322, 323, 326, 327, and 411 of P.L. 112-240; P.L. 114-7;
section 1101 of P.L. 114-74; section 305 of division P of P.L.
114-113; sections 123, 125 to 128, 143, 144, 151 to 153, 165 to
167, 169 to 171, 189, 191, 326, and 411 of division Q of P.L. 114113; sections 11011, 11012, 13201 (a) to (e) and (g), 13206,
13221, 13301, 13304 (a), (b), and (d), 13531, 13601, 13801,
14101, 14102, 14103, 14201, 14202, 14211, 14212, 14213,
14214, 14215, 14221, 14222, 14301, 14302, 14304, and 14401
of P.L. 115-97; sections 40304, 40305, 40306, and 40412 of P.L.
115-123; section 101 (c) of division T of P.L. 115-141; sections
101 (d) and (e), 102, 201 to 207, 301, 302, and 401 (a) (47) and
(195), (b) (13), (17), (22) and (30), and (d) (1) (D) (v), (vi), (xiii),
and (xvii) (II) of division U of P.L. 115-141; sections 104, 114,
115, 116, 130, and 145 of division Q of P.L. 116-94; sections
2304 and 2306 of P.L. 116-136; sections 111, 114, 115, 116, 118
(a) and (d), 133, 137, 138, and 210 of division EE of P.L. 116260; sections 5003, 9041, 9673, 9675, and 9708 of P.L. 117-2;
section 307 of division P of P.L. 117-103; section 13903 (b) of
P.L. 117-169; and section 4151 of division FF of P.L. 117-328.
3. For purposes of this paragraph, “Internal Revenue Code”
does not include amendments to the federal Internal Revenue
Code, including provisions of federal public laws that directly or
indirectly affect the Internal Revenue Code, enacted after December 31, 2022.
4. For purposes of this paragraph, the provisions of federal
public laws that directly or indirectly affect the Internal Revenue
Code, as defined in this paragraph, apply for Wisconsin purposes
at the same time as for federal purposes, except as follows:

a. Changes made by sections 5001, 5002, 5005, 9623, 9624,
and 9672 of P.L. 117-2; section 2 of P.L. 117-6; and sections
80401, 80402, and 80601 of division H of P.L. 117-58 apply for
taxable years beginning after December 31, 2022.
b. Changes made by section 1201 of P.L. 108-173 and section 307 of P.L. 109-432 apply for taxable years beginning after
December 31, 2010.
(7) Notwithstanding sub. (6), for natural persons, fiduciaries,
trusts and estates, at the taxpayer’s option, “internal revenue
code”, for taxable year 1986 and subsequent taxable years, includes any revisions to the federal internal revenue code adopted
after January 1, 1986, that relate to the taxation of income derived from any source as a direct consequence of participation in
the milk production termination program created by section 101
of P.L. 99-198.
(7m) Notwithstanding sub. (6), for natural persons, fiduciaries, trusts and estates, at the taxpayer’s option, “internal revenue
code” for taxable years beginning after December 31, 1987, includes any revisions to section 67 (c) of the internal revenue code
adopted after January 1, 1988, that relate to the indirect expenses
of regulated investment companies.
(7n) Notwithstanding sub. (6), a qualified retirement fund for
a taxable year for federal income tax purposes is a qualified retirement fund for the taxable year for purposes of this subchapter.
(7u) “Last day prescribed by law” has the meaning given in s.
71.738, except that in s. 71.03 (2) (e) 1. and 2. “last day prescribed by law” includes extensions.
(7v) For purposes of s. 71.05 (6) (a) 24. and (b) 46., “management fees” include expenses and costs, not including interest
expenses, pertaining to accounts receivable, accounts payable,
employee benefit plans, insurance, legal matters, payroll, data
processing, purchasing, taxation, financial matters, securities, accounting, or reporting and compliance matters or similar activities, to the extent that the amounts would otherwise be deductible
in the computation of Wisconsin adjusted gross income.
(8) “Married person” or “spouse” means a person determined
under section 7703 (a) of the internal revenue code to be married,
unless the context requires otherwise. A decree of divorce, annulment or legal separation terminates the marriage and the application of ch. 766 to property of the spouses after the date of the
decree, unless the decree provides otherwise.
(8g) “Member” does not include a member of a limited liability company treated as a corporation under s. 71.22 (1k).
(8j) For purposes of ss. 71.05 (6) (a) 29., 71.21 (7), 71.26 (3)
(e) 4., 71.34 (1k) (o) , and 71.45 (2) (a) 20. , “moving expenses”
means all of the following:
(a) Vehicle rentals.
(b) Storage rentals.
(c) Moving company expenses for packing, unpacking, and
transportation.
(d) Consulting fees and surveys.
(e) Brokerage commissions or fees.
(f) Architecture, design, and remodeling expenses.
(g) Expenses paid or incurred to sell property in this state.
(h) Loss on the sale of property in this state.
(i) Lease cancellation fees.
(j) Expenses paid or incurred for professional services, including legal services.
(k) Utility fees.
(L) Employee wages.
(m) Reimbursement of an employee’s expenses.
(n) The cost of meals, lodging, and fuel.
(o) Mileage deductions for vehicle use.
(8m) “Partner” does not include a partner of a publicly traded
partnership treated as a corporation under s. 71.22 (1k).
(8r) “Pay”, in regard to submissions to or for the department,
means mail or deliver funds to the department or, if the department prescribes another method of submitting or another destination, use that other method or submit to that other destination.
(9) “Person” includes natural persons and fiduciaries, unless
the context requires otherwise.
(9ad) “Qualified real estate investment trust” has the meaning given in s. 71.22 (9ad).
(9am) “Related entity” means any person related to a taxpayer as provided under section 267 or 1563 of the Internal Revenue Code during all or a portion of the taxpayer’s taxable year
and any real estate investment trust under section 856 of the Internal Revenue Code, except a qualified real estate investment trust,
if more than 50 percent of any class of the beneficial interests or
shares of the real estate investment trust are owned directly, indirectly, or constructively by the taxpayer, or any person related to
the taxpayer, during all or a portion of the taxpayer’s taxable year.
For purposes of this subsection, the constructive ownership rules
of section 318 (a) of the Internal Revenue Code, as modified by
section 856 (d) (5) of the Internal Revenue Code, shall apply in
determining the ownership of stock, assets, or net profits of any
person.
(9an) For purposes of s. 71.05 (6) (a) 24. and (b) 46., “rental
expenses” means the gross amounts that would otherwise be deductible in the computation of Wisconsin adjusted gross income
for the use of, or the right to use, real property and tangible personal property in connection with real property, including services furnished or rendered in connection with such property, regardless of how reported for financial accounting purposes and
regardless of how computed.
(9c) “Sign” means write one’s signature or, if the department
prescribes another method of authenticating, use that other
method.
(10) “Small business stock” means an equity security, sold
before January 1, 2014, that the taxpayer has held for at least 5
years and that is issued by a corporation that, on the December 31
before acquisition by the taxpayer, or, for a corporation which
was incorporated during the calendar year in which the stock is
issued, as of the date of the acquisition of the stock, fulfills all of
the following requirements and so certifies to the taxpayer upon
acquisitions:
(a) Has at least 50 percent of its property and at least 50 percent of its payroll, both as computed under s. 71.25, in this state.
(b) Has no more than 500 employees covered by Wisconsin
unemployment insurance, including employees of any corporation that owns more than 50 percent of the stock of the issuing
corporation.
(c) Derives no more than 25 percent of its gross receipts from
rents, interest, dividends and sales of intangible investment assets
combined unless the corporation derives less than $3,000 of that
income and has not been incorporated for more than 2 calendar
years.
(d) Has not issued stock that is listed on the New York stock
exchange, the American stock exchange or the National Association of Securities Dealers automated quotation system.
(e) Has not liquidated its assets in whole or in part for tax purposes only in order to fulfill the requirements under this subsection and then reorganized.
(10g) For purposes of s. 71.04 (7) (df) , (dh), (dj), and (dk),
“state” means a state of the United States, the District of Columbia, the commonwealth of Puerto Rico, or any territory or posses-

sion of the United States, unless the context requires that “state”
means only the state of Wisconsin.
(11) “Taxable income” when not preceded by the word “federal” means Wisconsin taxable income unless otherwise defined
or the context plainly requires otherwise.
(12) “Taxable year” means the taxable period upon the basis
of which the taxable income of the taxpayer is computed for federal income tax purposes. The taxable year of a taxpayer who
keeps his or her accounting records on the basis of a 52-53 week
period ends on the last day of the month closest to the end of the
52-53 week period.
(13) “Wisconsin adjusted gross income” means federal adjusted gross income, with the modifications prescribed in s.
71.05 (6) to (12), (19), (20), (25), (25m), and (26).
(14) “Wisconsin net operating loss” of persons other than
corporations means “federal net operating loss” adjusted as prescribed in s. 71.05 (6) (a) and (b), (7) to (12) and (19) to (21), except s. 71.05 (6) (b) 9. , except that no deductions allowable on
schedule A for federal income tax purposes are allowable.
(16) “Wisconsin taxable income” of natural persons means
Wisconsin adjusted gross income less the Wisconsin standard deduction, less the personal exemption described under s. 71.05
(23), with losses, depreciation, recapture of benefits, offsets, depletion, deductions, penalties, expenses and other negative income items determined according to the manner that income is or
would be allocated, except that the negative income items on individual or separate returns for net rents and other net returns
which are marital property attributable to the investment, rental,
licensing or other use of nonmarital property shall be allocated to
the owner of the property.

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