ABCDEFGHIJKLMNOPQRSTUVWXYZ
1
Colorado Department of Revenue
2
Demographics and Migration of Individual Income Tax Filers ¹
3
State Report
4
5
Migration Group ²Sequence
Number		Tax
Year ³		Average
Age		Average
Income ⁴		Median
Income ⁴		Year 1 to
Year 2 ⁵		Number of
Filers
6
Total Resident Filers in Year 21202246$74,000$49,0002022 to 20233,806,340
7
Filers Who Stayed2202247$78,000$52,0002022 to 20233,441,317
8
New Filers3202234$44,000$23,0002022 to 2023365,023
9
Filers Who Left4202244$43,000$24,0002022 to 2023347,515
10
Net Migration52022Not ReportedNot ReportedNot Reported2022 to 202317,508
11
Total Resident Filers in Year 21202146$76,000$46,0002021 to 20223,801,098
12
Filers Who Stayed2202147$80,000$49,0002021 to 20223,381,571
13
New Filers3202137$43,000$18,0002021 to 2022419,527
14
Filers Who Left4202143$42,000$24,0002021 to 2022315,735
15
Net Migration52021Not ReportedNot ReportedNot Reported2021 to 2022103,792
16
Total Resident Filers in Year 21202046$64,000$43,0002020 to 20213,714,181
17
Filers Who Stayed2202047$67,000$45,0002020 to 20213,329,941
18
New Filers3202036$36,000$17,0002020 to 2021384,240
19
Filers Who Left4202043$39,000$23,0002020 to 2021301,144
20
Net Migration52020Not ReportedNot ReportedNot Reported2020 to 202183,096
21
Total Resident Filers in Year 21201945$62,000Not Reported2019 to 20203,646,420
22
Filers Who Stayed2201947$65,000Not Reported2019 to 20203,272,728
23
New Filers3201934$34,000Not Reported2019 to 2020373,692
24
Filers Who Left4201943$36,000Not Reported2019 to 2020286,339
25
Net Migration52019Not ReportedNot ReportedNot Reported2019 to 202087,353
26
Total Resident Filers in Year 21201845$60,000Not Reported2018 to 20193,570,686
27
Filers Who Stayed2201847$63,000Not Reported2018 to 20193,229,195
28
New Filers3201833$33,000Not Reported2018 to 2019341,491
29
Filers Who Left4201839$34,000Not Reported2018 to 2019269,258
30
Net Migration52018Not ReportedNot ReportedNot Reported2018 to 201972,233
31
32
Source: Colorado individual income tax return booklet (DR 104)
33
34
¹ This report compares returns matched on taxpayer ID from two consecutive years to determine the migration of Colorado tax filers from year one to year two. The report counts individual income tax filers, not including dependents who don’t file returns. Location is determined using residency statuses and mailing addresses self-reported on the return at the time of filing.
35
² "Filers Who Stayed" were Colorado residents in Year 1 and 2. "New Filers" were Colorado residents in Year 2, but not Year 1. "Filers Who Left" were Colorado residents in Year 1, but not in Year 2. "Net Migration" is the difference between "New Filers" and "Filers Who Left." "Total Resident Filers in Year 2" is the sum of "New Filers" and "Filers Who Stayed."
36
³ The Tax Year is one year earlier than the filing year. The demographics are the age and income of the tax filers during the Tax Year.
37
⁴ "Income" is the Federal Adjusted Gross Income (AGI) as reported on the Colorado return. The income reported on joint (i.e., married) returns represents two filers; those amounts are divided in half so that the average and median are per person, not per return.
38
⁵ Years 1 and 2 indicate when the sets of income tax returns were filed, which is assumed to be the year after the Tax Year (e.g., a tax return for 2020 is filed in 2021).
39
40
Prepared by: Office of Research and Analysis, Colorado Department of Revenue | dor_ora@state.co.us
41
Data extracted: Tax Year 2017 & 2018 data extracted December 1, 2020. Subsequent data were extracted in May two years after the Tax Year (e.g., Tax Year 2019 data was extracted in May 2021).
42
Publish date: July 2024
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100