This publication is available as a PDF file. A free Adobe Reader is available for download, if needed. The Corporation Income Tax Returns Line Item Estimates presents estimates of frequencies of taxpayer entries recorded on the applicable lines of the forms and schedules filed with corporation tax returns as shown in the Statistics of Income (SOI) Complete Report (Publication 16). This publication also contains corresponding population estimates of dollar amounts recorded on those lines (as applicable). 2008 is the first year of availability for this data. Tax years 2021 PDF 2020 PDF 2019 PDF 2018 PDF 2017 PDF 2016 PDF 2015 PDF 2014 PDF 2013 PDF 2012 PDF 2011 PDF 2010 PDF 2009 PDF 2008 PDF