(The Center Square) – Every state that implemented an individual income tax since 1960 had both its gross domestic product and total tax revenue decline, Dr. Arthur B. Laffer of The Laffer Center told ...

Janet Berry-Johnson, CPA, is a freelance writer with a background in accounting and income tax planning and preparation for individuals and small businesses. Her work has appeared in Business Insider ...

Tax-Cruncher is a new open-source project for analyzing how tax policy affects taxpayer finances and incentives. Tax-Cruncher allows policymakers, researchers, and everyday taxpayers to analyze how ...

Julia Kagan is a financial/consumer journalist and former senior editor, personal finance, of Investopedia. Vikki Velasquez is a researcher and writer who has managed, coordinated, and directed ...