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2023 Colorado Individual Statistics of Income
State Return Data
Table 3. Income and Tax Data by Size of Federal Adjusted Gross Income and Single or Joint Filers
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This table summarizes income and tax data as reported on full-year resident Colorado returns by single or joint filers and by size of federal adjusted gross income (AGI). Colorado returns are categorized as single filers if a spouse is not listed on the return and joint filers if a spouse is listed on the return.
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Single or Joint FilersSize of Federal AGINumber
of Returns		Federal AGIFederal
Taxable Income		Colorado
Taxable Income ¹		Colorado
Gross Tax ²		Colorado
Net Tax
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SingleNegative Income17,811($1,028,631,479)$0 ($1,307,221,171)$49,173 $150,621
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Single$0 under $10K334,086$1,262,597,581 $25,600,203 ($2,060,942,888)$1,183,127 $1,493,316
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Single$10K under $20K232,184$3,443,284,821 $338,846,527 ($302,141,999)$13,717,667 $13,632,556
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Single$20K under $30K201,065$5,016,115,699 $1,908,805,984 $1,472,544,373 $75,531,887 $74,912,125
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Single$30K under $40K208,927$7,322,199,942 $4,065,762,795 $3,631,331,876 $164,120,306 $163,135,191
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Single$40K under $50K201,754$9,058,012,533 $5,885,493,182 $5,425,258,381 $240,094,807 $238,656,025
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Single$50K under $60K167,961$9,204,902,622 $6,537,096,902 $6,078,499,245 $268,381,765 $266,524,096
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Single$60K under $75K186,657$12,509,259,883 $9,467,170,313 $8,821,115,795 $389,168,656 $386,072,905
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Single$75K under $100K183,062$15,741,099,266 $12,581,867,674 $11,805,906,304 $520,508,857 $515,392,574
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Single$100K under $200K182,874$24,198,347,122 $20,434,031,312 $19,649,142,954 $865,415,640 $851,930,559
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Single$200K under $500K39,972$11,243,123,221 $9,995,520,260 $10,025,853,718 $441,327,108 $424,769,585
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Single$500K under $1M5,276$3,532,808,538 $3,189,036,702 $3,401,952,773 $149,711,950 $138,227,801
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Single$1M and over2,494$8,433,077,707 $7,591,101,736 $8,321,265,876 $366,135,910 $319,543,466
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SingleTotal1,964,123$109,936,197,456 $82,020,333,590 $74,962,565,237 $3,495,346,853 $3,394,440,820
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JointNegative Income8,623($1,290,301,264)$0 ($1,570,276,258)$204,677 $354,036
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Joint$0 under $10K30,837$108,456,962 $818,760 ($700,045,985)$43,832 $48,263
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Joint$10K under $20K25,676$389,010,364 $2,522,837 ($448,717,258)$153,101 $166,753
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Joint$20K under $30K31,271$787,381,342 $9,548,258 ($324,638,163)$425,312 $463,572
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Joint$30K under $40K34,140$1,196,747,121 $207,897,170 ($76,112,835)$6,553,942 $6,511,115
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Joint$40K under $50K36,996$1,665,781,208 $581,797,747 $247,584,410 $18,118,720 $17,944,787
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Joint$50K under $60K39,542$2,176,635,590 $1,011,265,902 $617,164,473 $31,860,027 $31,526,348
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Joint$60K under $75K64,687$4,374,652,762 $2,452,609,747 $1,758,374,593 $80,685,702 $79,856,866
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Joint$75K under $100K119,834$10,507,449,829 $6,912,288,426 $5,477,998,906 $242,531,423 $239,718,845
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Joint$100K under $200K375,514$53,740,026,161 $41,981,144,727 $37,477,275,874 $1,650,231,978 $1,629,856,688
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Joint$200K under $500K206,594$59,753,961,302 $51,825,556,402 $51,143,410,889 $2,250,751,591 $2,199,121,125
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Joint$500K under $1M31,039$20,713,936,156 $18,840,105,476 $19,515,817,268 $859,108,630 $815,963,000
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Joint$1M and over12,553$41,504,151,658 $37,940,634,155 $41,203,583,828 $1,812,976,345 $1,623,544,933
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JointTotal1,017,306$195,627,889,191 $161,766,189,607 $154,321,419,742 $6,953,645,280 $6,645,076,331
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Source: Colorado individual income tax returns (full-year residents only)
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¹ Colorado Taxable Income (CTI) can be positive, zero, or negative. CTI is negative when losses and/or subtractions exceed income and additions.
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² Colorado Gross Tax is calculated by multiplying positive CTI by the income tax rate. To find the positive CTI subject to tax, divide the Colorado Gross Tax by the income tax rate.
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Prepared by: Office of Research and Analysis, Taxation Division, Colorado Department of Revenue | dor_ora@state.co.us
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Data extracted: August 21, 2025
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Publish date: December 2025
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End of worksheet
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