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Colorado Department of Revenue
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2018 Individual Statistics of Income
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Table 10. Colorado Net Tax by Size of Federal AGI and Federal Filing Status
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This table categorizes full-year resident returns by federal filing status. Colorado net tax is summarized for each category.
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I. Number of Returns
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Size of Federal AGISingleMarried JointMarried SeparateHead of HouseholdWidow/
Widower		All Returns
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Negative Income 14,518 9,196 798 986 19 25,517
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$ 0 to $ 9,999 233,780 17,877 3,677 17,028 96 272,458
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$ 10,000 to $ 19,999 204,907 29,608 4,473 45,292 134 284,414
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$ 20,000 to $ 29,999 180,871 39,547 5,756 48,324 133 274,631
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$ 30,000 to $ 39,999 157,722 43,878 6,563 43,168 131 251,462
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$ 40,000 to $ 49,999 124,932 46,772 6,239 29,859 111 207,913
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$ 50,000 to $ 59,999 93,589 49,915 4,880 20,816 103 169,303
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$ 60,000 to $ 74,999 93,531 81,270 5,094 20,614 105 200,614
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$ 75,000 to $ 99,999 80,997 136,845 4,504 17,935 146 240,427
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$ 100,000 to $ 199,999 69,021 301,899 4,037 15,695 149 390,801
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$ 200,000 to $ 499,999 15,684 117,377 971 3,683 49 137,764
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$ 500,000 to $ 999,999 2,347 17,504 NR 484 NR 20,501
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$ 1,000,000 and over 1,335 8,196 NR 255 NR 9,933
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Total 1,273,234 899,884 47,294 264,139 1,187 2,485,738
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II. Colorado Net Tax
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Size of Federal AGISingleMarried JointMarried SeparateHead of HouseholdWidow/
Widower		All Returns
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Negative Income$219,733 $892,877 $97,961 $43,056 $0 $1,253,627
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$ 0 to $ 9,999$1,521,381 $307,549 NR$76,895 NR$1,979,574
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$ 10,000 to $ 19,999$24,657,381 $102,263 NR$476,193 NR$25,911,196
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$ 20,000 to $ 29,999$94,105,587 $2,066,409 $3,181,958 $15,008,884 $7,001 $114,369,839
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$ 30,000 to $ 39,999$146,786,117 $14,639,251 $6,277,206 $32,077,397 $49,120 $199,829,091
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$ 40,000 to $ 49,999$166,302,447 $32,228,739 $8,709,987 $35,105,191 $81,419 $242,427,783
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$ 50,000 to $ 59,999$161,276,009 $52,250,867 $8,849,641 $33,659,561 $111,653 $256,147,731
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$ 60,000 to $ 74,999$205,613,937 $123,767,912 $11,791,497 $44,108,525 $170,306 $385,452,177
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$ 75,000 to $ 99,999$240,593,232 $319,667,106 $14,129,322 $52,844,263 $353,715 $627,587,638
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$ 100,000 to $ 199,999$330,444,547 $1,386,710,457 $19,817,832 $76,567,940 $651,962 $1,814,192,738
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$ 200,000 to $ 499,999$169,312,790 $1,253,740,127 $10,282,816 $40,874,579 $506,642 $1,474,716,954
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$ 500,000 to $ 999,999$58,338,331 $447,752,000 NR$12,823,539 NR$523,045,760
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$ 1,000,000 and over$168,018,322 $884,908,911 NR$27,402,060 NR$1,101,415,957
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Total$1,767,189,814 $4,519,034,468 $108,762,098 $371,068,083 $2,275,602 $6,768,330,065
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III. Average Colorado Net Tax per Return
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Size of Federal AGISingleMarried JointMarried SeparateHead of HouseholdWidow/
Widower		All Returns
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Negative Income$15 $97 $123 $44 $0 $49
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$ 0 to $ 9,999$7 $17 NR$5 NR$7
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$ 10,000 to $ 19,999$120 $3 NR$11 NR$91
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$ 20,000 to $ 29,999$520 $52 $553 $311 $53 $416
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$ 30,000 to $ 39,999$931 $334 $956 $743 $375 $795
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$ 40,000 to $ 49,999$1,331 $689 $1,396 $1,176 $734 $1,166
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$ 50,000 to $ 59,999$1,723 $1,047 $1,813 $1,617 $1,084 $1,513
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$ 60,000 to $ 74,999$2,198 $1,523 $2,315 $2,140 $1,622 $1,921
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$ 75,000 to $ 99,999$2,970 $2,336 $3,137 $2,946 $2,423 $2,610
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$ 100,000 to $ 199,999$4,788 $4,593 $4,909 $4,878 $4,376 $4,642
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$ 200,000 to $ 499,999$10,795 $10,681 $10,590 $11,098 $10,340 $10,705
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$ 500,000 to $ 999,999$24,857 $25,580 NR$26,495 NR$25,513
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$ 1,000,000 and over$125,856 $107,968 NR$107,459 NR$110,885
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Average$1,388$5,022$2,300$1,405$1,917$2,723
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Source: Federal and Colorado individual income tax returns (full-year residents only)
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NR - Not releasable due to confidentiality requirements. Total includes NR data.
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Prepared by: Office of Research and Analysis, Colorado Department of Revenue | dor_ora@state.co.us
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Data extracted: August 20, 2020
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Publish date: November 2021
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