(a) General. — An annual business franchise tax is hereby imposed on the privilege of doing business in this state and in respect of the benefits and protection conferred. Such tax shall be collected from every domestic corporation, every corporation having its commercial domicile in this state, every foreign or domestic corporation owning or leasing real or tangible personal property located in this state or doing business in this state and from every partnership owning or leasing real or tangible personal property located in this state or doing business in this state effective on and after July 1, 1987.
(b) Amount of tax and rate; effective date. —
(1) On and after July 1, 1987, the amount of tax shall be the greater of $50 or fifty-five one hundredths of one percent of the value of the tax base, as determined under this article: Provided, That when the taxpayer's first taxable year under this article is a short taxable year, the taxpayer's liability shall be prorated based upon the ratio which the number of months in which such short taxable year bears to twelve: Provided, however, That this subdivision shall not apply to taxable years beginning on or after January 1, 1989.