Patrick O’Brien, a research and policy fellow at CT Voices for Children, said Wednesday that the most pressing tax issue in Connecticut “is not the overall tax burden, but rather the distribution of that burden.” However, defining that burden has been difficult due to the dearth of data. The last tax incidence report from the Connecticut Department of Revenue Services, was released in 2014 and it was based on data from 2011. That was former Gov. Dannel P. Malloy’s first year in office. The report measures progressivity or regressivity of each of the taxes and offers guidance to policymakers. In 2015, the report which showed the tax burden on every income level in Connecticut, was delayed to February 2017 and biennially thereafter; in 2016, it was delayed to February 2018 and biennially thereafter; in 2017, it was delayed to February 2020 and biennially thereafter; and in 2019, it was delayed to February 2022….