Form Ia 1040x - Amended Iowa Individual Income Tax Return Page 4
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4TAX RATE SCHEDULES
2009
2010
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
Rate
Over
Over
Not Over
Rate
Over
$
0
1,407
0
plus 0.36%
0
$
0
1,428
0
plus 0.36%
0
1,407
2,814
5.07
plus 0.72%
1,407
1,428
2,856
5.14
plus 0.72%
1,428
2,814
5,628
15.20
plus 2.43%
2,814
2,856
5,712
15.42
plus 2.43%
2,856
5,628
12,663
83.58
plus 4.50%
5,628
5,712
12,852
84.82
plus 4.50%
5,712
12,663
21,105
400.16
plus 6.12%
12,663
12,852
21,420
406.12
plus 6.12%
12,852
21,105
28,140
916.81
plus 6.48%
21,105
21,420
28,560
930.48
plus 6.48%
21,420
28,140
42,210
1,372.68
plus 6.80%
28,140
28,560
42,840
1,393.15
plus 6.80%
28,560
42,210
63,315
2,329.44
plus 7.92%
42,210
42,840
64,260
2,364.19
plus 7.92%
42,840
63,315
over
4,000.96
plus 8.98%
63,315
64,260
over
4,060.65
plus 8.98%
64,260
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
Not Over
Rate
Over
Over
Not Over
Rate
Over
$
0
1,439
0
plus 0.36%
0
$
0
1,469
0
plus 0.36%
0
1,439
2,878
5.18
plus 0.72%
1,439
1,469
2,938
5.29
plus 0.72%
1,469
2,878
5,756
15.54
plus 2.43%
2,878
2,938
5,876
15.87
plus 2.43%
2,938
5,756
12,951
85.48
plus 4.50%
5,756
5,876
13,221
87.26
plus 4.50%
5,876
12,951
21,585
409.26
plus 6.12%
12,951
13,221
22,035
417.79
plus 6.12%
13,221
21,585
28,780
937.66
plus 6.48%
21,585
22,035
29,380
957.21
plus 6.48%
22,035
28,780
43,170
1,403.90
plus 6.80%
28,780
29,380
44,070
1,433.17
plus 6.80%
29,380
43,170
64,755
2,382.42
plus 7.92%
43,170
44,070
66,105
2,432.09
plus 7.92%
44,070
64,755
over
4,091.95
plus 8.98%
64,755
66,105
over
4,177.26
plus 8.98%
66,105
Example: Taxable income on line 9 of the 1040X for tax year 2012 is $33,000.
6.80% of $3,620 = $
246.16
Using the 2012 tax rate schedule, this amount is over $29,380 but not over $44,070.
plus
1,433.17
The tax is $1,433.17 plus 6.8% of $3,620 ($33,000 minus $29,380).
tax $ 1,679.33
TAX INTEREST RATE CHART: FOR AMENDED RETURNS FILED IN CALENDAR YEAR 2013
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 2013 in which the amended return is filed.
TAX YEAR
JAN
FEB
MAR
APR
MAY
JUNE
JULY
AUG
SEP
OCT
NOV
DEC
2012
0.4
0.8
1.2
1.6
2.0
2.4
2.8
3.2
2011
3.6
4.0
4.4
4.8
5.2
5.6
6.0
6.4
6.8
7.2
7.6
8.0
2010
8.4
8.8
9.2
9.6
10.0
10.4
10.8
11.2
11.6
12.0
12.4
12.8
2009
13.2
13.6
14.0
14.4
14.8
15.2
15.6
16.0
16.4
16.8
17.2
17.6
2008
20.4
20.8
21.2
21.6
22.0
22.4
22.8
23.2
23.6
24.0
24.4
24.8
2007
29.6
30.0
30.4
30.8
31.2
31.6
32.0
32.4
32.8
33.2
33.6
34.0
2006
39.2
39.6
40.0
40.4
40.8
41.2
41.6
42.0
42.4
42.8
43.2
43.6
2005
48.0
48.4
48.8
49.2
49.6
50.0
50.4
50.8
51.2
51.6
52.0
52.4
2004
54.8
55.2
55.6
56.0
56.4
56.8
57.2
57.6
58.0
58.4
58.8
59.2
2003
60.8
61.2
61.6
62.0
62.4
62.8
63.2
63.6
64.0
64.4
64.8
65.2
2002
67.6
68.0
68.4
68.8
69.2
69.6
70.0
70.4
70.8
71.2
71.6
72.0
2001
76.4
76.8
77.2
77.6
78.0
78.4
78.8
79.2
79.6
80.0
80.4
80.8
2000
86.8
87.2
87.6
88.0
88.4
88.8
89.2
89.6
90.0
90.4
90.8
91.2
1999
96.8
97.2
97.6
98.0
98.4
98.8
99.2
99.6
100.0
100.4
100.8
101.2
1998
106.4
106.8
107.2
107.6
108.0
108.4
108.8
109.2
109.6
110.0
110.4
110.8
1997
116.0
116.4
116.8
117.2
117.2
118.0
118.4
118.8
119.2
119.6
120.0
120.4
1996
125.6
126.0
126.4
126.8
127.2
127.6
128.0
128.4
128.8
129.2
129.6
130.0
Example: There is additional tax due of $500 on line 29 of the 1040X on which a 2012 return is being amended.
The 1040X is being filed in August 2013, resulting in an interest rate of 1.6%.
41-122d (10/18/12)
The computed interest is equal to: $500 x 1.6 (.016) = $8.00.
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