Form Ia 1040x - Amended Iowa Individual Income Tax Return - 2015 Page 4
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4TAX RATE SCHEDULES
2011
2012
TAX RATE SCHEDULE
TAX RATE SCHEDULE
Amount on line 9
Amount on line 9
But
Tax
Of Excess
But
Tax
Of Excess
Over
Over
Not Over
Over
Over
Not Over
Rate
Rate
0
0
1,469
0
plus
0.36%
0
$
0 1,439
0 plus
0.36%
1,439
1,469
2,938
5.29
plus
0.72%
1,469
1,439
2,878
5.18
plus
0.72%
2,878
2,938
5,876
15.87
plus
2.43%
2,938
2,878
5,756
15.54
plus
2.43%
5,756
5,876
13,221
87.26
plus
4.50%
5,876
5,756
12,951
85.48
plus
4.50%
12,951
13,221
22,035
417.79
plus
6.12%
13,221
12,951
21,585
409.26
plus
6.12%
21,585
21,585
28,780
937.66
plus
6.48%
22,035
29,380
957.21
plus
6.48%
22,035
28,780
29,380
44,070
1,433.17
plus
6.80%
29,380
28,780
43,170
1,403.90
plus
6.80%
43,170
43,170
64,755
2,382.42
plus
7.92%
44,070
66,105
2,432.09
plus
7.92%
44,070
64,755
66,105
over
4,177.26
plus
8.98%
66,105
64,755
over
4,091.95
plus
8.98%
2013
2014
TAX RATE SCHEDULE
TAX RATE SCHEDULE
Amount on line 9
Amount on line 9
But
Tax
Of Excess
But
Tax
Of Excess
Over
Not Over
Over
Over
Not Over
Over
Rate
Rate
$
0
1,494
0
plus
0.36%
0
0
1,515
0
0.36%
0
plus
1,515
3,030
5.45
0.72%
1,515
1,494
2,988
5.38
plus
0.72%
1,494
plus
2,988
5,976
16.14
plus
2.43%
2,988
3,030
6,060
16.36
2.43%
3,030
plus
6,060
13,635
89.99
4.50%
6,060
5,976
13,446
88.75
plus
4.50%
5,976
plus
13,446
22,410
424.90
plus
6.12%
13,446
13,635
22,725
430.87
6.12%
13,635
plus
22,725
30,300
987.18
6.48%
22,725
22,410
29,880
973.50
plus
6.48%
22,410
plus
29,880
44,820
1,457.56
plus
6.80%
29,880
30,300
45,450
1,478.04
6.80%
30,300
plus
45,450
68,175
2,508.24
7.92%
45,450
44,820
67,230
2,473.48
plus
7.92%
44,820
plus
67,230
over
4,248.35
plus
8.98%
67,230
68,175
over
4,308.06
8.98%
68,175
plus
Example: Taxable income on line 9 of the 1040X for tax year 2014 is $33,000.
6.80% of $2,700 = $
183.60
Using the 2014 tax rate schedule, this amount is over $22,725 but not over $30,300.
1478.04
plus
The tax $1,478.04 plus 6.8% of $2,700 ($33,000 minus $30,300).
1661.64
tax $
TAX INTEREST RATE CHART: FOR AMENDED RETURNS FILED IN CALENDAR YEAR 2015
If there is additional tax due on line 29, interest on the unpaid tax is to be computed using the table below. To find the applicable rate, find the tax year for
which you are amending your return in the left hand column. Then go to the right until you reach the column for the month in 2015 in which the amended
return is filed.
TAX YEAR
JAN
FEB
MAR
APR
MAY
JUNE
JULY
AUG
SEP
OCT
NOV
DEC
2014
0.4
0.8
1.2
1.6
2
2.4
2.8
3.2
2013
3.6
4
4.4
4.8
5.2
5.6
6
6.4
6.8
7.2
7.6
8
2012
8.4
8.8
9.2
9.6
10
10.4
10.8
11.2
11.6
12
12.4
12.8
2011
13.2
13.6
14
14.4
14.8
15.2
15.6
16
16.4
16.8
17.2
17.6
2010
18
18.4
18.8
19.2
19.6
20
20.4
20.8
21.2
21.6
22
22.4
2009
22.8
23.2
23.6
24
24.4
24.8
25.2
25.6
26
26.4
26.8
27.2
2008
30
30.4
30.8
31.2
31.6
32
32.4
32.8
33.2
33.6
34
34.4
2007
39.2
39.6
40
40.4
40.8
41.2
41.6
42
42.4
42.8
43.2
43.6
2006
48.8
49.2
49.6
50
50.4
50.8
51.2
51.6
52
52.4
52.8
53.2
2005
57.6
58
58.4
58.8
59.2
59.6
60
60.4
60.8
61.2
61.6
62
2004
64.4
64.8
65.2
65.6
66
66.4
66.8
67.2
67.6
68
68.4
68.8
2003
70.4
70.8
71.2
71.6
72
72.4
72.8
73.2
73.6
74
74.4
74.8
2002
77.2
77.6
78
78.4
78.8
79.2
79.6
80
80.4
80.8
81.2
81.6
2001
86
86.4
86.8
87.2
87.6
88
88.4
88.8
89.2
89.6
90
90.4
2000
96.4
96.8
97.2
97.6
98
98.4
98.8
99.2
99.6
100
100.4
100.8
1999
106.4
106.8
107.2
107.6
108
108.4
108.8
109.2
109.6
110
110.4
110.8
1998
116
116.4
116.8
117.2
117.6
118
118.4
118.8
119.2
119.6
120
120.4
Example: There is additional tax due of $500 on line 29 of the 1040X on which a 2014 return is being amended. The 1040X is being filed in August 2015, resulting
in an interest rate of 1.6%. The computed interest is equal to: $500 x 1.6% (.016) = $8.00.
41-122 (11/13/14)
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