There shall be added to the rates contained in section 5733.06 of the Revised Code the following:
The additional tax charged any taxpayer or group of combined taxpayers pursuant to this section for any tax year shall not exceed five thousand dollars.
This section does not apply to any family farm corporation as defined in section 4123.01 of the Revised Code.
The tax levied on corporations under this section does not prohibit or otherwise limit the authority of municipal corporations to impose an income tax on the income of such corporations.
R.C. §5733.066