Ohio Revised Code Title LVII. Taxation § 5729.11

If any foreign insurance company refuses to pay the tax levied by section 5729.03 of the Revised Code upon demand being made therefor, it shall be liable to the state at the suit of the attorney general to a penalty of not more than five hundred dollars per month for each month it has failed, after demand therefor, to pay the tax. Service of process in such action shall be made according to the requirements of law governing suits brought against such companies by a policyholder therein.