Statistics of Income Reports

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About the Reports

The Colorado Individual Statistics of Income (SOI) report is a collection of data describing federal and state individual income tax returns filed by full-year Colorado residents. The report includes charts and data tables on income, taxes, age, location, households, and more. Colorado’s Individual SOI report complements the Individual SOI report published by the Internal Revenue Service (IRS), and serves as a useful tool for researchers and policy makers. This report is prepared annually.

The Colorado Corporate Statistics of Income (SOI) report is a collection of data describing Colorado state income tax returns filed by C Corporations that conduct business in Colorado. The report consists of tables that present income and tax data by Colorado taxable income group or industry. This report is prepared every other year.

Latest Reports Available

  • 2019 Colorado Individual Statistics of Income - published in November 2022
  • 2019 Colorado Corporate Statistics of Income - published in May 2022 and updated in November 2022
2019 Individual SOI Timeline
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Individual Statistics of Income Reports

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2019
single and joint returns infographic
Enhancements and Changes Since the Previous Report:
  • Added Colorado Taxable Income to these tables: 1, 2, 3, 4, 5, 6, 7, 8, 20, 21, 22, 23
  • Removed Table 28. Colorado Voluntary Contributions by Size of Federal AGI due to changes in the availability of this data for reporting purposes
Full Report:
Data Tables: 
  • Table 1. Income and Tax Data by Size of Federal AGI
  • Table 2. Income and Tax Data by Size of Federal AGI in $10,000 Increments
  • Table 3. Income and Tax Data for Single Colorado Returns by Size of Federal AGI
  • Table 4. Income and Tax Data for Joint Colorado Returns by Size of Federal AGI
  • Table 5. Income and Tax Data for Taxable Returns by Size of Federal AGI
  • Table 6. Income and Tax Data for Nontaxable Returns by Size of Federal AGI
  • Table 7. Income and Tax Data for Filers Under 65 by Size of Federal AGI
  • Table 8. Income and Tax Data for Filers 65 and Older by Size of Federal AGI
  • Table 9. Federal AGI by Size of Federal AGI and Filing Status
  • Table 10. Colorado Net Tax by Size of Federal AGI and Filing Status
  • Table 11. Federal AGI by Size of Federal AGI and Age Group
  • Table 12. Colorado Net Tax by Size of Federal AGI and Age Group
  • Table 13. Source of Income by Size of Federal AGI
  • Table 14. Business Income by Industry
  • Table 15. Adjustments to Income by Size of Federal AGI
  • Table 16. Income and Tax Data by Size of Federal AGI and Standard/Itemized Deduction Returns
  • Table 17. Standard, Itemized, and Qualified Business Income Deductions by Size of Federal AGI
  • Table 18. Itemized Deductions by Size of Federal AGI
  • Table 19. Selected Federal Tax Credits by Size of Federal AGI
  • Table 20. Income and Tax Data by Region
  • Table 21. Income and Tax Data for Regions by Size of Federal AGI
  • Table 22. Income and Tax Data by County
  • Table 23. Income and Tax Data for Major Counties by Size of Federal AGI
  • Table 24. Colorado Income and Tax Data by Size of Colorado Taxable Income in $10,000 Increments
  • Table 24 Supp. Colorado Income and Tax Data by Size of Colorado Taxable Income in $10,000 Increments (All Taxpayers)
    • Includes all returns in the SOI dataset plus all Colorado income tax returns that were excluded from the SOI dataset
    • Returns were excluded from the SOI dataset if they were not full-year residents or they did not match up to an IRS return in the data merging process
  • Table 25. Colorado Additions and Subtractions by Size of Federal AGI
  • Table 26. Colorado Income Tax Prepayments by Size of Federal AGI
  • Table 27. Colorado Tax Credits by Size of Federal AGI
Supplemental Information:
2018
2018 Individual SOI Infographic
Enhancements and Changes Since the Previous Report:
  • Added three new tables:
    • Table 14 - Business Income by Industry
    • Table 19 - Selected Federal Tax Credits by Size of Federal AGI
    • Table 26 - Colorado Income Tax Prepayments by Size of Federal AGI
  • Significant changes made to three tables:
    • Table 17 - This table no longer summarizes personal exemptions (see 2017 Table 18), but now includes qualified business income deductions. These modifications were made due to federal tax return changes. 
    • Table 20 and Table 21 - Five Colorado regions are now summarized instead of the 14 planning regions summarized in previous SOI reports.
  • Formatting changes:
    • All values are now rounded to the nearest dollar.
    • Previous reports rounded summed totals to the nearest thousand, which will affect comparisons to prior year data.
Narrative and Charts:
  • 2018 Individual SOI Narrative and Charts (PDF) 
    • Includes an introduction, highlights, charts, and methodology
    • Features insights into major changes that started tax year 2018 due to the federal Tax Cuts and Jobs Act of 2017 (TCJA) (NEW!) 
    • TCJA Overview and Impacts section includes charts and tables that compare 2018 and 2017 to demonstrate the impacts the TCJA had on Colorado income tax filers (NEW!) 
Data Tables: 

The 2018 Individual SOI tables summarize key statistics on income and tax data by income group, including the number of returns, federal adjusted gross income (AGI), federal taxable income, Colorado gross tax, Colorado net tax, and federal tax. The aggregate data is split into various groupings, such as filing status, age, and location. Four tables (Tables 7, 8, 11, and 12) break out return data by age group. Information on the composition of Colorado households can be found by examining filing statuses (Tables 3, 4, 9, and 10). Detailed data on sources of income, business income by industry, and adjustments to income are reported in Tables 13, 14, and 15. Reductions from federal income such as standard, itemized, and qualified business income deductions are presented in Tables 16, 17, and 18. Selected federal tax credits are summarized in table 19. Geographic (county or region) data is presented in Tables 20 through 23. Data specific to the calculation of Colorado taxable income and tax due — including additions, subtractions, tax prepayments, tax credits, and voluntary contributions — are the focus of Tables 24 through 28.

  • Table 1. Income and Tax Data by Size of Federal AGI
  • Table 2. Income and Tax Data by Size of Federal AGI in $10,000 Increments
  • Table 3. Income and Tax Data for Single Colorado Returns by Size of Federal AGI
  • Table 4. Income and Tax Data for Joint Colorado Returns by Size of Federal AGI
  • Table 5. Income and Tax Data for Taxable Returns by Size of Federal AGI
  • Table 6. Income and Tax Data for Non-Taxable Returns by Size of Federal AGI
  • Table 7. Income and Tax Data for Filers Under 65 by Size of Federal AGI
  • Table 8. Income and Tax Data for Filers 65 and Older by Size of Federal AGI
  • Table 9. Federal AGI by Size of Federal AGI and Federal Filing Status
  • Table 10. Colorado Net Tax by Size of Federal AGI and Federal Filing Status
  • Table 11. Federal AGI by Size of Federal AGI and Age Group
  • Table 12. Colorado Net Tax by Size of Federal AGI and Age Group
  • Table 13. Source of Income by Size of Federal AGI
  • Table 14. Business Income by Industry (NEW!) 
  • Table 15. Adjustments to Income by Size of Federal AGI
  • Table 16. Income and Tax Data by Size of Federal AGI and Standard/Itemized Deduction Returns
  • Table 17. Standard, Itemized, and Qualified Business Income Deductions by Size of Federal AGI
  • Table 18. Itemized Deductions by Size of Federal AGI
  • Table 19. Selected Federal Tax Credits by Size of Federal AGI (NEW!) 
  • Table 20. Income and Tax Data by Region
  • Table 21. Income and Tax Data for Regions by Size of Federal AGI 
  • Table 22. Income and Tax Data by County
  • Table 23. Income and Tax Data for Major Counties by Size of Federal AGI 
  • Table 24. Colorado Income and Tax Data by Size of Colorado Taxable Income in $10,000 Increments
  • Table 24 Supplement. Colorado Income and Tax Data by Size of Colorado Taxable Income in $10,000 Increments
    • This supplemental table to the Individual SOI summarizes all of the returns that were included in SOI and all Colorado income tax returns that were excluded from the SOI data set– either because the returns were not full-year residents or because they did not match up to an IRS return in the data merging process.
    • This information is provided to help the data users apply their own weighting methodologies if needed. 
  • Table 25. Colorado Additions and Subtractions by Size of Federal AGI
  • Table 26. Colorado Income Tax Prepayments by Size of Federal AGI (NEW!) 
  • Table 27. Colorado Tax Credits by Size of Federal AGI
  • Table 28. Colorado Voluntary Contributions by Size of Federal AGI
Supplemental Information:
  • Data Sources Excel
  • 2018 vs. 2017 Table Crosswalk Excel
2017
2017 Individual SOI Infographic
Enhancements and Changes Since the Previous Report:
  • Added narrative with charts in the full report to highlight and elaborate on selected income tax data
Full Report:
Tables: 
  • Table 1. Income and Tax Data by Size of Federal AGI
  • Table 2. Income and Tax Data by Size of Federal AGI in $10,000 Increments
  • Table 3. Income and Tax Data for Single Colorado Returns by Size of Federal AGI
  • Table 4. Income and Tax Data for Joint Colorado Returns by Size of Federal AGI
  • Table 5. Income and Tax Data for Taxable Returns by Size of Federal AGI
  • Table 6. Income and Tax Data for Non-Taxable Returns by Size of Federal AGI
  • Table 7. Income and Tax Data for Filers Under 65 by Size of Federal AGI
  • Table 8. Income and Tax Data for Filers 65 and Older by Size of Federal AGI
  • Table 9. Federal AGI by Size of Federal AGI and Federal Filing Status
  • Table 10. Colorado Net Tax by Size of Federal AGI and Federal Filing Status
  • Table 11. Federal AGI by Size of Federal AGI and Age Group
  • Table 12. Colorado Net Tax by Size of Federal AGI and Age Group
  • Table 13. Federal AGI by Size of Federal AGI and Number of Personal Exemptions
  • Table 14. Colorado Net Tax by Size of Federal AGI and Number of Personal Exemptions
  • Table 15. Source of Income by Size of Federal AGI
  • Table 16. Adjustments to Income by Size of Federal AGI
  • Table 17. Income and Tax Data by Size of Federal AGI and Standard/Itemized Deduction Returns
  • Table 18. Exemptions and Standard/Itemized Deductions by Size of Federal AGI
  • Table 19. Itemized Deductions by Size of Federal AGI
  • Table 20. Income and Tax Data by Planning Region
  • Table 21. Income and Tax Data for Planning Regions by Size of Federal AGI 
  • Table 22. Income and Tax Data by County
  • Table 23. Income and Tax Data for Major Counties by Size of Federal AGI 
  • Table 24. Colorado Income and Tax Data by Size of Colorado Taxable Income in $10,000 Increments
  • Table 24 Supplement. Colorado Income and Tax Data by Size of Colorado Taxable Income in $10,000 Increments
    • This supplemental table to the Individual SOI summarizes all of the returns that were included in SOI and all Colorado income tax returns that were excluded from the SOI data set– either because the returns were not full-year residents or because they did not match up to an IRS return in the data merging process.
    • This information is provided to help the data users apply their own weighting methodologies if needed. 
  • Table 25. Colorado Additions and Subtractions by Size of Federal AGI
  • Table 26. Colorado Tax Credits by Size of Federal AGI
  • Table 27. Colorado Voluntary Contributions by Size of Federal AGI
2016
New Enhancements Since the Previous Report:
  • Added short descriptions to the tables to help make the data more accessible
  • Developed five new tables to provide more breakouts of the data by single/joint filing status and age group
  • Created charts to illustrate and highlight some of the SOI data
Tables: 
  • Table 1. Income and Tax Data by Size of Federal AGI
  • Table 2. Income and Tax Data by Size of Federal AGI in $10,000 Increments
  • NEW! Table 3. Income and Tax Data for Single Colorado Returns by Size of Federal AGI
  • NEW! Table 4. Income and Tax Data for Joint Colorado Returns by Size of Federal AGI
  • Table 5. Income and Tax Data for Taxable Returns by Size of Federal AGI
  • Table 6. Income and Tax Data for Non-Taxable Returns by Size of Federal AGI
  • NEW! Table 7. Income and Tax Data for Filers Under 65 by Size of Federal AGI
  • Table 8. Income and Tax Data for Filers 65 and Older by Size of Federal AGI
  • Table 9. Federal AGI by Size of Federal AGI and Federal Filing Status
  • Table 10. Colorado Net Tax by Size of Federal AGI and Federal Filing Status
  • NEW! Table 11. Federal AGI by Size of Federal AGI and Age Group
  • NEW! Table 12. Colorado Net Tax by Size of Federal AGI and Age Group
  • Table 13. Federal AGI by Size of Federal AGI and Number of Exemptions
  • Table 14. Colorado Net Tax by Size of Federal AGI and Number of Exemptions
  • Table 15. Source of Income by Size of Federal AGI
  • Table 16. Adjustments to Income by Size of Federal AGI
  • Table 17. Income and Tax Data by Size of Federal AGI and Standard/Itemized Deduction Returns
  • Table 18. Exemptions and Standard/Itemized Deductions by Size of Federal AGI
  • Table 19. Itemized Deductions by Size of Federal AGI
  • Table 20. Income and Tax Data by Planning Region
  • Table 21. Income and Tax Data for Planning Regions by Size of Federal AGI 
  • Table 22. Income and Tax Data by County
  • Table 23. Income and Tax Data for Major Counties by Size of Federal AGI 
  • Table 24. Colorado Income and Tax Data by Size of Colorado Taxable Income in $10,000 Increments
  • Table 24 Supplement. Colorado Income and Tax Data by Size of Colorado Taxable Income in $10,000 Increments
    • This supplemental table to the Individual SOI summarizes all of the returns that were included in SOI and all Colorado income tax returns that were excluded from the SOI data set– either because the returns were not full-year residents or because they did not match up to an IRS return in the data merging process.
    • This information is provided to help the data users apply their own weighting methodologies if needed. 
  • Table 25. Colorado Additions and Subtractions by Size of Federal AGI
  • Table 26. Colorado Tax Credits by Size of Federal AGI
  • Table 27. Colorado Tax Checkoff Donations by Size of Federal AGI
Charts: 
2015
New Enhancements Since the Previous Report:
  • Updates were made to the 2015 SOI to improve the accuracy of the reporting which may limit comparability of the data to prior years’ publications
  • See the PDF report for additional information such as Introductions, 2013-to-2015 Table Crosswalks, Data Glossaries, and Publication Changes
Full Report:
Tables:
  • Table 1. Income and Tax Data by Size of Federal AGI
  • Table 2. Income and Tax Data by Size of Federal AGI in $10,000 Increments
  • Table 3. Income and Tax Data for Taxable Returns by Size of Federal AGI
  • Table 4. Income and Tax Data for Non-Taxable Returns by Size of Federal AGI
  • Table 5. Income and Tax Data for Residents 65 and Older by Size of Federal AGI
  • Table 6. Federal AGI by Size of Federal AGI and Filing Status
  • Table 7. Colorado Net Tax by Size of Federal AGI and Filing Status
  • Table 8. Federal AGI by Size of Federal AGI and Number of Exemptions
  • Table 9. Colorado Net Tax by Size of Federal AGI and Number of Exemptions
  • Table 10. Income by Size of Federal AGI and Source of Income
  • Table 11. Federal AGI by Size of Federal AGI and Type of Adjustment
  • Table 12. Income and Tax Data by Size of Federal AGI and Standard/Itemized Deduction Returns
  • Table 13. Exemptions and Standard/Itemized Deductions by Size of Federal AGI
  • Table 14. Itemized Deductions by Size of Federal AGI
  • Table 15. Income and Tax Data by Planning Region
  • Table 16. Income and Tax Data for Planning Regions by Size of Federal AGI
  • Table 17. Income and Tax Data by County
  • Table 18. Income and Tax Data for Major Counties by Size of Federal AGI (Adams, Arapahoe, Boulder, Denver, Douglas, El Paso, Jefferson, Larimer, Mesa, Pueblo, Weld)
  • Table 19. Colorado Income and Tax Data by Size of Colorado Taxable Income in $10,000 Increments
  • Table 19 Supplement. Colorado Income and Tax Data by Size of Colorado Taxable Income in $10,000 Increments
    • This supplemental table to the Individual SOI summarizes all of the returns that were included in SOI and all Colorado income tax returns that were excluded from the SOI data set– either because the returns were not full-year residents or because they did not match up to an IRS return in the data merging process.
    • This information is provided to help the data users apply their own weighting methodologies if needed. 
  • Table 20. Colorado Additions and Subtractions by Size of Federal AGI
  • Table 21. Colorado Tax Credits Claimed by Size of Federal AGI
  • Table 22. Colorado Tax Checkoff Donations by Size of Federal AGI
2014

The 2014 Individual SOI will not be published due to a technical issue with the IRS data file.

2013
Tables:

Full Report (PDF) with Tables 1A through 24

2012
Tables:
  • Table 1A. Federal AGI and Tax, All Full-year Resident Returns
  • Table 1B. Federal AGI, Taxable Full-year Resident Returns
  • Table 1C. Federal AGI and Tax, Non-Taxable Full-year Resident Returns
  • Table 2. Colorado Returns Classified by Type of Deduction
  • Table 3. Colorado Returns Classified by Filing Status
  • Table 4. Federal AGI Classified by Filing Status
  • Table 5. Colorado Net Tax Classified by Filing Status
  • Table 6. Colorado Returns Classified by Number of Exemptions
  • Table 7. Federal AGI Classified by Number of Exemptions
  • Table 8. Colorado Net Tax Classified by Number of Exemptions
  • Table 9. Federal AGI and Taxes, Returns of Residents 65 and Older
  • Table 10. Number of Returns by Type of Adjustment to Total Income
  • Table 11. Adjustments to Total Income by Type of Deduction
  • Table 12. Amount of Deferral Exemptions, Deductions, and Taxable Income
  • Table 13. Number of Returns Classified by Source of Taxable Income
  • Table 14. Colorado Income by Source of Taxable Income
  • Table 15. Number of Returns by Type of Itemized Deduction
  • Table 16. Type and Amount of Itemized Deductions
  • Table 17. Federal AGI and Tax by Planning Region
  • Table 18. Federal AGI and Tax by County
  • Table 19. Federal AGI and Tax by Major County
  • Table 20. Number of Returns Claiming Colorado Modifications
  • Table 21. Amount of Colorado Modifications
  • Table 22. Colorado Returns by Liability Status
  • Table 23. Amount and Number of Tax Checkoff Donations
  • Table 24. Amount and Number of Income Tax Credits Claimed 
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Corporate Statistics of Income Reports

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2019
2019 Corporate SOI Infographic
Enhancements and Changes Since the Previous Report:
  • Developed new tables that show Corporate income tax data by federal taxable income
Full Report:
Tables:
  • Table 1. All Corporations: Income and Tax Data by Size of Colorado Taxable Income
  • Table 2. All Corporations: Income and Tax Data by Size of Colorado Taxable Income in $10,000 Increments
  • Table 3. Corporations that Conduct Business Only in Colorado: Income and Tax Data by Size of Colorado Taxable Income
  • Table 4. Corporations that Conduct Business Within and Outside of Colorado: Income and Tax Data by Size of Colorado Taxable Income
  • NEW! Table 5. All Corporations: Income and Tax Data by Size of Federal Taxable Income
  • NEW! Table 6. Corporations that Conduct Business Only in Colorado: Income and Tax Data by Size of Federal Taxable Income
  • NEW! Table 7. Corporations that Conduct Business Within and Outside of Colorado: Income and Tax Data by Size of Federal Taxable Income
  • Table 8. All Corporations: Income and Tax Data by Industry
  • Table 9. Corporations that Conduct Business Only in Colorado: Income and Tax Data by Industry
  • Table 10. Corporations that Conduct Business Within and Outside of Colorado: Income and Tax Data by Industry
  • Table 11. Corporations that Conduct Business Only in Colorado: Colorado Additions and Subtractions by Size of Colorado Taxable Income
  • Table 12. Corporations that Conduct Business Within and Outside of Colorado: Colorado Additions and Subtractions by Size of Colorado Taxable Income
  • Table 13. All Corporations: Colorado Income Tax Credits by Size of Colorado Taxable Income
2017
2017 Corporate SOI Infographic
Enhancements and Changes Since the Previous Report:
  • Added short descriptions to the tables to help make the data more accessible
  • Developed new tables that show Corporate income tax data by industry
  • Split the Colorado Additions and Subtractions by Size of Colorado Taxable Income table into two separate tables based on where the corporations conduct business
  • Added narrative and infographics in the full report to highlight and elaborate on selected income tax data
Full Report:
Tables:
  • Table 1. All Corporations: Income and Tax Data by Size of Colorado Taxable Income
  • Table 2. All Corporations: Income and Tax Data by Size of Colorado Taxable Income in $10,000 Increments
  • Table 3. Corporations that Conduct Business Only in Colorado: Income and Tax Data by Size of Colorado Taxable Income
  • Table 4. Corporations that Conduct Business Within and Outside of Colorado: Income and Tax Data by Size of Colorado Taxable Income
  • NEW! Table 5. All Corporations: Income and Tax Data by Industry
  • NEW! Table 6. Corporations that Conduct Business Only in Colorado: Income and Tax Data by Industry
  • NEW! Table 7. Corporations that Conduct Business Within and Outside of Colorado: Income and Tax Data by Industry
  • NEW! Table 8. Corporations that Conduct Business Only in Colorado: Colorado Additions and Subtractions by Size of Colorado Taxable Income
  • NEW! Table 9. Corporations that Conduct Business Within and Outside of Colorado: Colorado Additions and Subtractions by Size of Colorado Taxable Income
  • Table 10. All Corporations: Colorado Income Tax Credits by Size of Colorado Taxable Income
2015
Enhancements and Changes Since the Previous Report:
  • Updates were made to the 2015 SOI to improve the accuracy of the reporting which may limit comparability of the data to prior years’ publications
  • See the PDF Report for all tables and additional information such as Introductions, 2013-to-2015 Table Crosswalks, Data Glossaries, and Publication Changes
Full Report:
Tables:
  • Table 1. Income and Tax Data by Size of Colorado Taxable Income
  • Table 2. Income and Tax Data by Size of Colorado Taxable Income in $10,000 Increments
  • Table 3. Income and Tax Data for Intrastate Returns by Size of Colorado Taxable Income
  • Table 4. Income and Tax Data for Interstate Returns by Size of Colorado Taxable Income
  • Table 5. Colorado Income Tax Deductions by Size of Colorado Taxable Income
  • Table 6. Colorado Income Tax Credits by Colorado Taxable Income
2013
Full Report:
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