repeal of obsolete tax credits and tax provisions

Wisconsin Legislature: SB529: Bill Text

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SB529: Bill Text

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2025 - 2026 LEGISLATURE
LRB-3761/1
JK:cdc
2025 SENATE BILL 529
October 9, 2025 - Introduced by Senators
Marklein
,
Cabral-Guevara
and
Nass
, cosponsored by Representatives
Wittke
,
Brill
,
Brooks
,
Dittrich
,
Gundrum
,
Knodl
,
Kreibich
,
Melotik
,
Murphy
,
Neylon
,
O'Connor
,
Penterman
,
Piwowarczyk
and
Wichgers
. Referred to Committee on Agriculture and Revenue.
SB529,6,2
1
An Act

to repeal
13.94 (1) (ms), 20.250 (2) (h), 20.835 (2) (bb), 20.835 (2) (cc),
2
20.835 (2) (ff), 71.01 (6) (j), 71.01 (6) (k), 71.01 (6) (L), 71.01 (6) (m), 71.01 (7g),
3
71.01 (7r), 71.03 (7) (a), 71.03 (7) (b), 71.03 (7) (c), 71.04 (4) (a), 71.04 (4) (b),
4
71.04 (4) (c), 71.04 (4) (e), 71.04 (4m) (a) 1., 71.04 (4m) (b) 1., 71.04 (4m) (c) 1.,
5
71.04 (5), 71.04 (6), 71.04 (8) (b) 1., 71.04 (10), 71.05 (6) (a) 10., 71.05 (6) (a) 15.
6
a., 71.05 (6) (a) 15. b., 71.05 (6) (a) 15. c., 71.05 (6) (a) 15. d., 71.05 (6) (a) 15. e.,
7
71.05 (6) (a) 15. f., 71.05 (6) (a) 15. g., 71.05 (6) (a) 15. h., 71.05 (6) (a) 15. i.,
8
71.05 (6) (a) 15. n., 71.05 (6) (a) 15. q., 71.05 (6) (a) 15. r., 71.05 (6) (a) 15. t.,
9
71.05 (6) (a) 15. u., 71.05 (6) (a) 15. v., 71.05 (6) (a) 21., 71.05 (6) (a) 22., 71.05
10
(6) (b) 3m., 71.05 (6) (b) 6., 71.05 (6) (b) 10., 71.05 (6) (b) 13., 71.05 (6) (b) 14.,
11
71.05 (6) (b) 21. a., 71.05 (6) (b) 21. b., 71.05 (6) (b) 23., 71.05 (6) (b) 33., 71.05
12
(6) (b) 43., 71.05 (6) (b) 43. a., 71.05 (6) (b) 43. b., 71.05 (6) (b) 43. c., 71.05 (6)
13
(b) 44., 71.05 (6) (b) 47m., 71.05 (6) (b) 50., 71.05 (11), 71.05 (12) (b) 2., 71.05
14
(12) (c) 2., 71.05 (16), 71.05 (17), 71.05 (18), 71.05 (22) (c), 71.05 (22) (d), 71.05
1
(22) (dm), 71.05 (22) (ds), 71.05 (23) (a), 71.05 (24), 71.05 (26) (b), 71.05 (26) (e),
2
71.06 (1), 71.06 (1m), 71.06 (1n), 71.06 (1p), 71.06 (1q), 71.06 (2) (a), 71.06 (2)
3
(b), 71.06 (2) (c), 71.06 (2) (d), 71.06 (2) (e), 71.06 (2) (f), 71.06 (2) (g), 71.06 (2)
4
(h), 71.06 (2) (i), 71.06 (2) (j), 71.06 (2e) (a), 71.06 (2e) (b), 71.07 (2dm), 71.07
5
(2dx), 71.07 (2dy), 71.07 (3g), 71.07 (3h), 71.07 (3n), 71.07 (3q), 71.07 (3s),
6
71.07 (3t), 71.07 (4n), 71.07 (5g), 71.07 (5i), 71.07 (5j), 71.07 (5n) (b) 1., 71.07
7
(5n) (b) 2., 71.07 (5n) (b) 3., 71.07 (5n) (b) 4., 71.07 (5r), 71.07 (5rm), 71.07 (6)
8
(a), 71.07 (6) (am) 2. a., 71.07 (6) (am) 2. b., 71.07 (6) (am) 2. c., 71.07 (6m),
9
71.07 (6n), 71.07 (9) (b) 1., 71.07 (9) (b) 2., 71.07 (9) (b) 4., 71.07 (9m) (a) 1m.,
10
71.07 (9m) (a) 3., 71.07 (9m) (cn), 71.08, 71.09 (11) (f), 71.09 (11) (g), 71.10 (4)
11
(cd), 71.10 (4) (ce), 71.10 (4) (cm), 71.10 (4) (cn), 71.10 (4) (cp), 71.10 (4) (cq),
12
71.10 (4) (eu), 71.10 (4) (f), 71.10 (4) (gb), 71.10 (4) (gbb), 71.10 (4) (gbm), 71.10
13
(4) (gc), 71.10 (4) (grb), 71.10 (4) (grd), 71.10 (4) (gu), 71.10 (4) (gv), 71.10 (4)
14
(gxx), 71.10 (5e), 71.10 (5fm), 71.10 (5h), 71.21 (3), 71.21 (4) (a) 1., 71.21 (4) (a)
15
2., 71.21 (4) (a) 3., 71.21 (4) (a) 4., 71.21 (4) (a) 5., 71.21 (4) (a) 6., 71.21 (4) (a)
16
7., 71.21 (4) (a) 8., 71.21 (4) (a) 9., 71.21 (4) (a) 14., 71.21 (4) (a) 16., 71.21 (4) (a)
17
18., 71.21 (4) (a) 19., 71.21 (4) (a) 21., 71.21 (4) (a) 22., 71.21 (4) (a) 23., 71.22
18
(4) (j), 71.22 (4) (k), 71.22 (4) (L), 71.22 (4) (m), 71.22 (4m) (j), 71.22 (4m) (k),
19
71.22 (4m) (L), 71.22 (4m) (m), 71.22 (5g), 71.22 (5m) (b), 71.23 (3) (am) 4.,
20
71.25 (6) (a), 71.25 (6) (b), 71.25 (6) (c), 71.25 (6) (e), 71.25 (6m) (a) 1., 71.25
21
(6m) (b) 1., 71.25 (6m) (c) 1., 71.25 (7), 71.25 (8), 71.25 (10) (b) 1., 71.25 (11),
22
71.25 (14), 71.255 (10), 71.26 (2) (a) 2. a., 71.26 (2) (a) 2. b., 71.26 (2) (a) 2. d.,
23
71.26 (2) (a) 2. e., 71.26 (2) (a) 3., 71.26 (2) (a) 4. a., 71.26 (2) (a) 4. b., 71.26 (2)
24
(a) 4. c., 71.26 (2) (a) 4. d., 71.26 (2) (a) 4. e., 71.26 (2) (a) 4. f., 71.26 (2) (a) 4. g.,
1
71.26 (2) (a) 4. h., 71.26 (2) (a) 4. m., 71.26 (2) (a) 4. o., 71.26 (2) (a) 4. p., 71.26
2
(2) (a) 4. r., 71.26 (2) (a) 4. s., 71.26 (2) (a) 4. t., 71.26 (2) (b) 10., 71.26 (2) (b) 11.,
3
71.26 (3) (n) 1., 71.26 (3) (n) 2., 71.26 (3) (n) 3., 71.26 (3) (n) 5., 71.26 (3) (n) 6.,
4
71.26 (3) (q), 71.26 (3) (y), 71.26 (3) (ym), 71.28 (1), 71.28 (1dm), 71.28 (1dx),
5
71.28 (1dy), 71.28 (3), 71.28 (3g), 71.28 (3h), 71.28 (3n), 71.28 (3q), 71.28 (3t),
6
71.28 (4) (am), 71.28 (4m), 71.28 (5), 71.28 (5g), 71.28 (5i), 71.28 (5j), 71.28 (5n)
7
(b) 1., 71.28 (5n) (b) 2., 71.28 (5n) (b) 3., 71.28 (5n) (b) 4., 71.28 (5r), 71.28
8
(5rm), 71.28 (6) (a) 1m., 71.28 (6) (a) 3., 71.28 (6) (cn), 71.28 (6n), 71.29 (7) (d),
9
71.30 (3) (b), 71.30 (3) (bb), 71.30 (3) (bm), 71.30 (3) (cd), 71.30 (3) (ce), 71.30
10
(3) (cn), 71.30 (3) (d), 71.30 (3) (db), 71.30 (3) (dm), 71.30 (3) (dp), 71.30 (3) (ds),
11
71.30 (3) (e), 71.30 (3) (ei), 71.30 (3) (eL), 71.30 (3) (ema), 71.30 (3) (eon), 71.30
12
(3) (epa), 71.34 (1g) (j), 71.34 (1g) (k), 71.34 (1g) (L), 71.34 (1g) (m), 71.34 (1k)
13
(e), 71.34 (1k) (g) 1., 71.34 (1k) (g) 2., 71.34 (1k) (g) 3., 71.34 (1k) (g) 4., 71.34
14
(1k) (g) 5., 71.34 (1k) (g) 6., 71.34 (1k) (g) 7., 71.34 (1k) (g) 8., 71.34 (1k) (g) 9.,
15
71.34 (1k) (g) 14., 71.34 (1k) (g) 16., 71.34 (1k) (g) 18., 71.34 (1k) (g) 19., 71.34
16
(1k) (g) 21., 71.34 (1k) (g) 22., 71.34 (1k) (g) 23., 71.34 (1k) (n), 71.34 (1m) (b),
17
71.34 (1u), 71.365 (3), 71.42 (2) (j), 71.42 (2) (k), 71.42 (2) (L), 71.42 (2) (m),
18
71.42 (2p), 71.45 (1) (b), 71.45 (1) (c), 71.45 (2) (a) 7., 71.45 (2) (a) 10. a., 71.45
19
(2) (a) 10. b., 71.45 (2) (a) 10. c., 71.45 (2) (a) 10. d., 71.45 (2) (a) 10. e., 71.45 (2)
20
(a) 10. f., 71.45 (2) (a) 10. g., 71.45 (2) (a) 10. k., 71.45 (2) (a) 10. m., 71.45 (2) (a)
21
10. n., 71.45 (2) (a) 10. p., 71.45 (2) (a) 10. q., 71.45 (2) (a) 10. r., 71.45 (2) (a)
22
10a. a., 71.45 (2) (a) 10a. b., 71.45 (2) (a) 10a. d., 71.45 (2) (a) 10a. e., 71.45 (2)
23
(a) 10b., 71.45 (2) (a) 13., 71.45 (2) (a) 19., 71.45 (3d) (a), 71.45 (3d) (b), 71.45
24
(3e) (a) 1., 71.45 (3e) (b) 1., 71.45 (3e) (c) 1., 71.47 (1), 71.47 (1dm), 71.47 (1dx),
1
71.47 (1dy), 71.47 (3), 71.47 (3g), 71.47 (3h), 71.47 (3n), 71.47 (3q), 71.47 (3t),
2
71.47 (4) (am), 71.47 (4m), 71.47 (5), 71.47 (5g), 71.47 (5i), 71.47 (5j), 71.47 (5r),
3
71.47 (5rm), 71.47 (6) (a) 1m., 71.47 (6) (a) 3., 71.47 (6) (cn), 71.47 (6n), 71.49
4
(1) (b), 71.49 (1) (bb), 71.49 (1) (bm), 71.49 (1) (cd), 71.49 (1) (ce), 71.49 (1) (cn),
5
71.49 (1) (d), 71.49 (1) (db), 71.49 (1) (dm), 71.49 (1) (dp), 71.49 (1) (ds), 71.49
6
(1) (e), 71.49 (1) (ei), 71.49 (1) (eL), 71.49 (1) (ema), 71.49 (1) (eon), 71.49 (1)
7
(epa), 71.49 (1) (es), 71.54 (1) (a), 71.54 (1) (b), 71.54 (1) (c), 71.54 (1) (d), 71.54
8
(1) (e), 71.54 (1) (f), 71.54 (2) (b) 1., 71.54 (2) (b) 2., 71.54 (2) (b) 3., 71.54 (2m),
9
71.64 (9) (b) 1., 71.64 (9) (b) 2., 71.775 (4) (L), 71.80 (24), 71.805, 71.85 (3),
10
71.93 (8) (b) 3., 73.03 (35), 73.03 (35m), 73.03 (71), 73.03 (73), 73.15, 76.635,
11
76.636, 76.637, 76.655, 77.54 (67), 77.68, 229.8257 (2) (b), 238.16, 238.23,
12
238.30 (6), 238.30 (7) (a), 238.30 (7) (b), 238.30 (7) (c), 238.30 (7) (d), 238.301,
13
238.302, 238.303, 238.304, 238.3045, 238.305, 238.306, 238.31, 238.315,
14
238.32, 238.325, 238.335, 238.34, 238.345, 238.35, 238.363, 238.365, 238.368,
15
238.37, 238.38, 238.385, 238.395, 238.397, 238.398 and 255.054;
to renumber

16
71.04 (4m) (a) 2., 71.04 (4m) (b) 2., 71.04 (4m) (c) 2., 71.04 (8) (b) 2., 71.05 (6)
17
(b) 21. c., 71.07 (9) (b) 5., 71.07 (9m) (a) 2m., 71.22 (5m) (a), 71.25 (6m) (a) 2.,
18
71.25 (6m) (b) 2., 71.25 (6m) (c) 2., 71.25 (10) (b) 2., 71.28 (6) (a) 2m., 71.34
19
(1m) (a), 71.45 (3d) (c), 71.45 (3e) (a) 2., 71.45 (3e) (b) 2., 71.45 (3e) (c) 2., 71.47
20
(6) (a) 2m. and 71.54 (1) (g);
to renumber and amend
71.05 (6) (a) 15., 71.07
21
(5n) (b) (intro.), 71.21 (4) (a), 71.26 (2) (a) 2., 71.26 (2) (a) 4., 71.26 (3) (n), 71.28
22
(5n) (b) (intro.), 71.34 (1k) (g), 71.45 (2) (a) 10., 71.64 (9) (b) (intro.) and 238.30
23
(7) (e);
to consolidate, renumber and amend
71.04 (4) (intro.) and (d), 71.05
24
(12) (b) (intro.) and 1., 71.05 (12) (c) (intro.) and 1., 71.07 (6) (am) 2. (intro.) and
1
d., 71.25 (6) (intro.) and (d), 71.26 (2) (a) 2. (intro.) and c., 71.26 (3) (n) (intro.)
2
and 4., 71.45 (2) (a) 10a. (intro.) and c. and 71.54 (2) (b) (intro.) and 4.;
to
3
amend
20.566 (1) (hp), 71.01 (13), 71.04 (1) (a), 71.05 (6) (b) 9m., 71.05 (6) (b)
4
28. a., 71.05 (6) (b) 28. h., 71.05 (6) (b) 32. a., 71.05 (6) (b) 43. (intro.), 71.05 (6)
5
(b) 43. f., 71.05 (22) (f) 2m., 71.05 (23) (c), 71.05 (25) (a) 2., 71.05 (25m) (b),
6
71.05 (26) (c), 71.05 (26) (f), 71.06 (2s) (d), 71.07 (3g) (a) (intro.), 71.07 (3n) (b)
7
1., 71.07 (3n) (b) 2., 71.07 (3w) (a) 5., 71.07 (3w) (b) (intro.), 71.07 (3w) (bm) 1.,
8
71.07 (3w) (bm) 2., 71.07 (3w) (bm) 3., 71.07 (3w) (bm) 4., 71.07 (3w) (bm) 5.,
9
71.07 (3wm) (b) (intro.), 71.07 (3wm) (bm), 71.07 (3y) (b) (intro.), 71.07 (3y) (d)
10
2., 71.07 (4k) (b) 1., 71.07 (4k) (b) 2., 71.07 (4k) (b) 3., 71.07 (4k) (b) 4. b., 71.07
11
(4k) (b) 5. b., 71.07 (4k) (b) 6. b., 71.07 (4k) (e) 2. (intro.), 71.07 (5i) (b), 71.07
12
(5j) (b), 71.07 (6e) (c) 2., 71.07 (8b) (b), 71.07 (9m) (c) (intro.), 71.07 (9m) (h),
13
71.10 (5s) (a), 71.10 (5s) (b), 71.10 (5s) (c), 71.10 (5s) (d) 1., 71.10 (5s) (d) 4.,
14
71.10 (5s) (d) 5., 71.10 (5s) (e), 71.125 (1), 71.125 (2), 71.17 (6), 71.22 (11), 71.25
15
(16), 71.255 (6) (c) 1., 71.28 (3g) (a) (intro.), 71.28 (4) (ad) 1., 71.28 (4) (ad) 2.,
16
71.28 (4) (ad) 3., 71.28 (4) (ad) 4. b., 71.28 (4) (ad) 5. b., 71.28 (4) (ad) 6. b., 71.28
17
(6) (c) (intro.), 71.28 (6) (h), 71.30 (3) (f), 71.45 (2) (a) 10b., 71.47 (3) (c) 7., 71.47
18
(3g) (a) (intro.), 71.47 (4) (ad) 1., 71.47 (4) (ad) 2., 71.47 (4) (ad) 3., 71.47 (4) (ad)
19
4. b., 71.47 (4) (ad) 5. b., 71.47 (4) (ad) 6. b., 71.47 (6) (c) (intro.), 71.47 (6) (h),
20
71.49 (1) (f), 71.64 (9) (b), 71.67 (5) (a), 71.67 (5m), 71.745 (3) (a), 71.77 (3),
21
71.77 (5), 71.775 (4) (cm) (intro.), 71.88 (2) (b), 71.98 (9), 73.03 (35), 73.03
22
(35m), 76.637 (1), 76.637 (2), 76.637 (3), 76.637 (4), 76.67 (2), 229.8257 (1),
23
238.12 (1), 238.17 (3) (a), 238.28 and 238.30 (intro.);
to create
71.45 (2) (a) 10.
1
b. of the statutes;
relating to:
repeal of obsolete tax credits and tax
2
provisions.
Analysis by the Legislative Reference Bureau
This bill repeals various tax credits that taxpayers may no longer earn because of sunset provisions related to each of those credits, repeals various obsolete tax provisions, and updates other tax provisions to reflect those changes. Current law allows taxpayers to carry forward certain unused nonrefundable tax credits to future years. Under the bill, the repeal of any nonrefundable tax credits is delayed until the date that those credits may no longer be used. The bill repeals, among others, the following tax credits and other obsolete tax provisions:
1. The armed forces member credit.
2. The biodiesel fuel production credit.
3. The community development finance credit.
4. The dairy and livestock farm investment credit.
5. The development, development opportunity, development zone additional research, and enterprise development zones credits.
6. The electronic medical records credit.
7. The economic development tax credit.
8. The ethanol and biodiesel fuel pump credit.
9. The health insurance risk-sharing plan assessments credit.
10. The internet equipment credit.
11. The jobs tax credit and the corresponding appropriation.
12. The manufacturing investment credit.
13. The manufacturing sales tax credit.
14. The postsecondary education credit.
15. The research facilities credit.
16. The super research and development credit.
17. The technology zones credit.
18. The water consumption credit.
19. The veteran employment credit.
20. The credit for investment in certified capital companies.
21. Provisions related to computation of apportionment of business income for tax years prior to 2008.
22. Obsolete Internal Revenue Code definitions.
23. Income tax rates and brackets for tax years prior to 2025.
24. Income tax return donation checkoffs that are discontinued.
25. The alternative minimum tax.
For further information see the state fiscal estimate, which will be printed as an appendix to this bill.
The people of the state of Wisconsin, represented in senate and assembly, do enact as follows:
SB529,1
1
Section
1
.
13.94 (1) (ms) of the statutes is repealed.
SB529,2
2
Section
2
.
20.250 (2) (h) of the statutes is repealed.
SB529,3
3
Section
3
.
20.566 (1) (hp) of the statutes is amended to read:
SB529,7,10
4
20.566
(1)
(hp)
Administration of income tax checkoff voluntary payments.

5
The amounts in the schedule for the payment of all administrative costs, including
6
data processing costs, incurred in administering ss. 71.10 (5),
(5e),
(5f),
(5fm),
(5g),
7
(5h),
(5i), (5j), (5k), (5km), and (5m), and 71.30 (10). All moneys specified for deposit
8
in this appropriation under ss. 71.10 (5) (h) 5.,
(5e) (h) 4.,
(5f) (i),
(5fm) (i),
(5g) (i),
9
(5h) (i),
(5i) (i), (5j) (i), (5k) (i), (5km) (i), and (5m) (i) and 71.30 (10) (i) and (11) (i)
10
shall be credited to this appropriation account.
SB529,4
11
Section
4
.
20.835 (2) (bb) of the statutes is repealed.
SB529,5
12
Section

5
.
20.835 (2) (cc) of the statutes is repealed.
SB529,6
13
Section
6
.
20.835 (2) (ff) of the statutes is repealed.
SB529,7
14
Section
7
.
71.01 (6) (j) of the statutes is repealed.
SB529,8
15
Section
8
.
71.01 (6) (k) of the statutes is repealed.
SB529,9
16
Section

9
.
71.01 (6) (L) of the statutes is repealed.
SB529,10
17
Section

10
.
71.01 (6) (m) of the statutes is repealed.
SB529,11
18
Section
11
.
71.01 (7g) of the statutes is repealed.
SB529,12
19
Section
12
.
71.01 (7r) of the statutes is repealed.
SB529,13
20
Section
13
.
71.01 (13) of the statutes is amended to read:
SB529,8,3
1
71.01
(13)
“Wisconsin adjusted gross income” means federal adjusted gross
2
income, with the modifications prescribed in s. 71.05 (6) to (12), (19), (20),
(24),
(25),
3
(25m), and (26).
SB529,14
4
Section
14
.
71.03 (7) (a) of the statutes is repealed.
SB529,15
5
Section
15
.
71.03 (7) (b) of the statutes is repealed.
SB529,16
6
Section
16
.
71.03 (7) (c) of the statutes is repealed.
SB529,17
7
Section
17
.
71.04 (1) (a) of the statutes is amended to read:

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