Tax History and Research
The Tax Data Series is a comprehensive series of data tables for most of Ohio's major state and local taxes. Some tables date back to the mid-1980s.
Writing a report on the history of Ohio taxes? Wondering where these taxes came from? Here you can find out about the significant changes that have happened with each Ohio tax.
For close to a century, the Ohio Department of Taxation (and its predecessor, the Ohio Tax Commission), has published an annual report documenting the agency's efforts.
For additional reports, click on the Research Publications Link