From the Ohio Department of Taxation, please be advised all commercial activity tax (CAT) practitioners and taxpayers that the first quarter 2020 CAT return is due May 11, 2020. The 2019 CAT 12 annual return is also due on May 11, 2020 for all CAT annual taxpayers.

Taxpayers are required to file and pay the CAT electronically via the Ohio Business Gateway at Alternatively, annual taxpayers may file and pay using the Department’s TeleFile system by calling 1-800-697-0440.

Please visit their website at or contact the Department at 1-888-722-8829 with any questions regarding the CAT.