Illinois

One of the thorniest problems in administering state corporate income taxes is how to distribute the profits of multi-state corporations among the states in which they operate. Ultimately, each corporation's profits should be taxed in their entirety, but some corporations pay no tax at all on a portion of their profits. This problem has emerged, in part, due to recent state efforts to manipulate the "apportionment rules" that distribute such profits. This policy brief explains how apportionment rules work and assesses the effectiveness of special apportionment rules such as "single sales factor" as economic development tools.

A few vocal critics have pointed to state personal income taxes as the source of a variety of fiscal and economic problems- arguing that it has enabled wasteful spending, fueled the volatility of revenue collections, or even stifled job-creation. Accordingly, some of these critics have called for the outright repeal of the income tax, while others have suggested making it significantly less progressive. Such proposals, if acted upon, would make it all but impossible for state tax systems to produce revenue in a fair and sustainable fashion.

Sales taxes are among the most important--and most unfair--taxes levied by state governments. Sales taxes accounted for a third of state taxes in 2011, but sales taxes are regressive, falling far more heavily on low- and middle- income taxpayers than on the wealthy. In recent years, lawmakers thinking they might lessen the impact of these taxes have enacted "sales tax holidays" that provide temporary sales tax breaks for purchases of clothing, computers, and other items. This policy brief looks at sales tax holidays as a tax reduction device.

State governments provide a wide array of tax breaks for their elderly residents. Almost every state levying an income tax now sensibly allows some form of income tax exemption or credit for its over-65 citizens that is unavailable to non-elderly taxpayers. But many states have enacted poorly-targeted, unnecessarily expensive elderly income tax breaks that make state tax systems less sustainable and less fair. This policy brief surveys approaches to elderly income tax relief and suggests options for reforming state tax breaks for seniors.

State lawmakers seeking to enact residential property tax relief have two broad options: across-the-board tax cuts for taxpayers at all income levels, such as a homestead exemption or a tax cap, and targeted tax breaks that are given only to particular groups of low-income and middle-income taxpayers. One increasingly popular type of targeted property tax relief program is called a "circuit breaker" because it protects taxpayers from a property tax "overload" just like an electric circuit breaker: when a property tax bill exceeds a certain percentage of a taxpayer's income, the circuit breaker reduces property taxes in excess of this…