Illinois’ revenue volatility among highest in U.S., threatens budget stability – Illinois Policy

The report from The Pew Charitable Trusts scored states based on the volatility of major revenue streams over 20 years that included sales taxes, personal income taxes, and corporate income taxes while controlling for changes in state tax policy. While Illinois tax revenues were among the most unpredictable in the nation, its neighbors make it look even worse. Kentucky, Iowa, and Wisconsin were ranked as having among the most stable revenues.