A penalty is hereby imposed on every person who engages in activities described in Section 6700(a) of the Internal Revenue Code of 1986, or any subsequent corresponding internal revenue code of the United States, as from time to time amended, and who is subject to the fifty per cent penalty imposed thereunder, whether or not such penalty has been imposed, where such activities affect tax returns required to be filed with the Commissioner of Revenue Services. The amount of the penalty imposed hereunder shall be equal to fifty per cent of the gross income derived from, or to be derived from, such activities by such person.