The Center on Budget and Policy Priorities published a fantastic, in-depth report this month examining the state of disclosure of state level tax expenditures. The report reviews the best (OR, MN, and CT) and worst (AR, MD, and RI) state reports and outlines the best practices for the ideal tax expenditure disclosure. CBPP makes a strong case that increased disclosure of tax expenditure data by states would improve policies and accountability:
If properly designed and implemented, a tax expenditure report makes tax expenditures more transparent by telling policymakers and the public how the state is spending its money and what it is accomplishing through those expenditures. A tax expenditure report also encourages accountability by enabling policymakers and voters to evaluate individual tax expenditures and decide whether to continue them. In addition, a tax expenditure report saves money by enabling policymakers to monitor the costs of tax expenditures and rein in their cost if necessary.